JP2008052768A - Information processor, method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily understand and check a use condition of a recoding medium which can record mass information, such as animation with simple operation. <P>SOLUTION: A video recording and reproducing device 1 with NFC function reads medium basic use information written in a recoding medium 2 with NFC function by proximity communication, when its own antenna 11 for reading NFC information is brought close to an antenna 21 of the recoding medium 2 with NFC function. Then the video recording and reproducing device 1 with NFC function calculates a use capacity itself of the recoding medium 2 with NFC function or an amount based on its use capacity based on this medium basic use information and its own firmware functions and mode settings, and displays the result of calculation on a display panel 12. This invention is applicable to a recording apparatus or the like which records animation data on a recoding medium. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an information processing apparatus, method, and program, and in particular, an information processing apparatus capable of easily and easily understanding the usage state of a recording medium capable of recording a large amount of information such as a moving image, and the like. The present invention relates to a method and a program.

  Conventionally, a disk or a memory is often used as a recording medium for recording a large amount of information such as a moving image.

At present, recording media called non-contact IC media have also appeared (see Patent Documents 1 and 2). Here, non-contact IC media means, for example, international standardization or international standardization deliberation in ISO (International Organization for Standardization) IEC (International Electro technical commission) JTC1 (Joint Technical Committee 1) / SC (Sub-Committee) 17. It refers to all media with a core module based on the specifications of the contact less IC card, that is, a non-contact IC module. A feature of non-contact IC media is that proximity non-contact communication using electromagnetic induction (hereinafter referred to as proximity communication) can be performed when approaching a reader, and is used for applications that require a small amount of data information.
JP 2002-325122 A JP 2004-215225 A

  However, in the case of a disk or memory, the usage state (usage amount, etc.) cannot be confirmed from the appearance of the media like a cassette tape window wound around a hub. Therefore, when the user wants to check the usage state of the disk or memory, it is necessary to perform a complicated operation such as reading the disk or memory after the disk or memory is once mounted on a playback device or the like. Furthermore, the processing of the playback device or the like for such an operation requires time-consuming processing such as mounting confirmation, reading, and analysis. Therefore, it has been difficult for the user to confirm necessary information such as a usage state with a simple operation and easy to understand.

  On the other hand, as described above, the non-contact IC medium itself is configured to deliver small-capacity data, and is not configured to deliver large-capacity information such as moving images.

  In other words, there is a demand to confirm the usage state of a recording medium capable of recording a large amount of information such as a moving image with a simple operation and easy understanding, but the demand is not sufficiently met.

  The present invention has been made in view of such a situation, and makes it possible to easily and easily check the usage state of a recording medium capable of recording a large amount of information such as a moving image. .

  An information processing apparatus according to an aspect of the present invention is an information processing apparatus that controls display of information about a medium, and includes: first information indicating a use state of the medium including a use capacity of the medium; Using the acquisition means acquired by near field communication, the first information acquired by the acquisition means, and the second information related to processing using a predetermined application format by the information processing apparatus itself, Computation means for computing an amount based on the used capacity according to the characteristics of the application format, and display control means for controlling display of the quantity based on the used capacity calculated by the computing means.

  The calculation means further generates, based on the first information and the second information, whether or not the medium can be used for the processing of the predetermined application format, and displays the display The control means further controls display of the availability information generated by the calculation means.

  The predetermined application format is an application format for recording a moving image, and the amount based on the usage amount calculated by the calculating unit is determined so that the moving image is included in all of the remaining amount of the media according to the predetermined application format. This is the recordable time when recording.

  The predetermined application format is an application format for moving image reproduction, and the amount based on the usage amount calculated by the calculation means is the amount of the usage amount recorded in the moving image according to the predetermined application format. It is a playback time when all of the moving images are played back from the media according to the predetermined application format when all of them are consumed.

  The predetermined application format is an application format for recording a still image, and the amount based on the usage amount calculated by the calculation means is determined so that the still image is included in all of the remaining amount of the media according to the predetermined application format. This is the number of recordable sheets when recording.

  The predetermined application format is an application format for reproducing a still image, and an amount based on the usage amount calculated by the calculation means is an amount of the usage amount for recording the still image according to the predetermined application format. This is the number of still images recorded on the medium when all of them are consumed.

  An information processing method according to one aspect of the present invention is an information processing method of an information processing apparatus that controls display of information about a medium, and includes first information indicating a use state of the medium including a use capacity of the medium. Using the first information acquired by proximity communication with the media and the second information regarding the processing using the predetermined application format by the information processing apparatus itself, the predetermined application format An amount based on the used capacity corresponding to the feature is calculated, and display of the calculated amount based on the used capacity is controlled.

  A program according to one aspect of the present invention is a program corresponding to the information processing method according to one aspect of the present invention described above.

  In the information processing apparatus, method, and program according to one aspect of the present invention, in the information processing apparatus that controls the display of information related to the medium, the first information indicating the use state of the medium including the use capacity of the medium is the information Features of the predetermined application format using the first information acquired by proximity communication with a medium and the second information regarding processing using the predetermined application format by the information processing apparatus or the like The amount based on the used capacity according to the above is calculated, and the display of the calculated amount based on the used capacity is controlled.

  As described above, according to one aspect of the present invention, a user can check information about media on the information processing apparatus side. In particular, the usage state of a medium capable of recording a large amount of information such as a moving image can be easily confirmed and easily understood.

  Embodiments of the present invention will be described below. Correspondences between the constituent elements of the present invention and the embodiments described in the specification or the drawings are exemplified as follows. This description is intended to confirm that the embodiments supporting the present invention are described in the specification or the drawings. Therefore, even if there is an embodiment which is described in the specification or the drawings but is not described here as an embodiment corresponding to the constituent elements of the present invention, that is not the case. It does not mean that the form does not correspond to the constituent requirements. Conversely, even if an embodiment is described here as corresponding to a configuration requirement, that means that the embodiment does not correspond to a configuration requirement other than the configuration requirement. It's not something to do.

An information processing apparatus according to one aspect of the present invention (for example, the video recording / reproducing apparatus 1 with an NFC function in FIGS. 1 and 7)
An information processing apparatus that controls display of information relating to a medium (for example, the recording medium 2 with an NFC function in FIGS. 1 and 7).
First information (for example, the NFC FS information 171 in FIGS. 7 and 8 and the NFC application information 172 in FIGS. 7 and 9) including the used capacity of the medium is used as the medium. Acquisition means (for example, NFC information generation / acquisition unit 184 of the NFC information read / write control unit 31 in FIG. 7) that is acquired by the proximity communication of
The first information acquired by the acquisition means and second information related to processing using a predetermined application format by the information processing apparatus itself (for example, information on the set side in FIG. 10 or data transfer in FIG. 11) A calculation means for calculating an amount based on the used capacity according to the characteristics of the predetermined application format (for example, the remaining recording time, the remaining number of recordings, etc. in the result display information of FIG. 10). For example, the remaining FS remaining amount calculation unit 181 to the remaining amount display control unit 183) of the video recording / playback control unit 32 in FIG.
Display control means for controlling the display of the amount based on the used capacity calculated by the calculating means (for example, controlling the display of the image of FIG. 2 and the like) (for example, controlling the display of the display panel 12 of FIGS. 1 and 7) And a panel display control unit 185) of FIG.

The calculation means further determines whether or not the medium can be used for processing of the predetermined application format based on the first information and the second information (for example, the result of FIG. 10). Among the display information, generate movie HD support, movie SD support, still image only, playability, recordability, etc.)
The display control unit further controls display of the availability information generated by the calculation unit.

An information processing method according to one aspect of the present invention (for example, the processing of FIG. 13)
In an information processing method of an information processing apparatus (for example, an NFC function-equipped video recording / reproducing apparatus 1 such as FIGS. 1 and 7) that controls display of information relating to a medium (for example, the recording medium 2 with an NFC function such as FIGS. ,
First information indicating the use state of the medium including the use capacity of the medium is acquired by proximity communication with the medium (for example, the process of step S2 of FIG. 13 is performed)
The amount based on the used capacity according to the characteristics of the predetermined application format using the acquired first information and the second information related to the processing using the predetermined application format by the information processing apparatus itself (For example, the process of step S6 in FIG. 13 is executed)
The display of the amount based on the calculated used capacity is controlled (for example, the process of step S7 in FIG. 13 is executed).
Includes steps.

  The program according to one aspect of the present invention includes, for example, the steps of the information processing method according to one aspect of the present invention described above, and is executed by, for example, the personal computer of FIG.

  Next, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows an external configuration example of a video recording / reproducing system which is an embodiment of an information processing system to which the present invention is applied.

  In the example of FIG. 1, the video recording / playback system includes a video recording / playback apparatus 1 having an NFC function and a recording medium 2 having a built-in non-contact IC medium having an NFC function. Hereinafter, the video recording / reproducing apparatus 1 is particularly referred to as a video recording / reproducing apparatus 1 with an NFC function, and the recording medium 2 is referred to as a recording medium 2 with an NFC function.

  Here, the NFC function is a function capable of performing near field communication by electromagnetic induction, that is, NFC (Near Field Communication) using a single-frequency carrier wave with another device having the same function. Say. As a carrier frequency used by each device in this case, for example, 13.56 MHz of an ISM (Industrial Scientific I / Fic Medical) band can be employed.

  Proximity communication means communication that enables a distance between communicating devices to be within several tens of centimeters, and includes communication performed by contacting (communicating with) the communicating devices.

  When the antenna 21 of the recording medium 2 with the NFC function is brought close to the antenna 11 for reading the NFC function, the video recording / reproducing apparatus 1 with the NFC function receives the basic medium usage information written in the recording medium 2 with the NFC function. Read by proximity communication. The NFC function-equipped video recording / reproducing apparatus 1 uses the medium basic use information and the information inside itself such as the function of the own firmware and the mode setting, or the used capacity of the recording medium 2 with the NFC function itself or its capacity. An amount based on the used capacity is calculated, and the calculation result is displayed on the display panel 12.

  Here, the media basic usage information refers to one or more aggregates of information indicating the usage status of the media (here, the recording medium 2 with the NFC function). Information indicating one usage state is used directly or indirectly for calculating the used capacity or an amount based on the used capacity. Although details will be described later, in the present embodiment, for example, NFC FS information 171 (see FIG. 8) as information indicating the usage status of the file system, and NFC application information as information indicating the usage status of the application format 172 (see FIG. 9) is included in the media basic usage information. Here, the information indicating the usage state is calculated on the video recording / playback apparatus (here, the video recording / playback apparatus 1 with NFC function) the used capacity of the medium or an amount based on the used capacity (for example, the remaining amount described later). This refers to numerical data information that is necessary and used to do this. Specifically, for example, in the present embodiment, one item of information (see FIG. 8) such as “used capacity” in the NFC FS information 171 is an example of information indicating a use state.

  For example, the following information is used as “internal information such as own firmware function and mode setting”.

  That is, although details will be described later, for example, the remaining amount calculation for the file system performed on the NFC function-equipped video recording / reproducing apparatus 1 side is a file system (hereinafter abbreviated as FS as appropriate) which is an example of media basic usage information. ) Calculated based on information.

  The remaining amount calculation result for the file system and the following “internal information such as firmware functions and mode settings” are used to calculate the remaining amount for the application format. This is performed on the attached video recording / reproducing apparatus 1 side. That is, in the video recording / reproducing apparatus 1 with the NFC function, an image resolution of a video standard for video compression for HD, SD, or a mobile compatible system is selected as a recording resolution application format system (hereinafter referred to as an application format as appropriate). Yes. Then, XP, HQ +, HQ, SP, and LP are selected as recording rates that are image quality modes in each application method, and a wide aspect and a standard 4: 3 aspect are further selected in the SD method. That is, each application format method, image quality mode, and aspect selection if necessary are made. Therefore, the selection setting with the correspondence to any one or more of them is used together with the basic media usage information as an example of the above-mentioned “internal information such as own firmware function and mode setting”. The remaining amount for the application format is calculated.

  In consideration of the fact that not only video but also audio can be recorded on a medium, an information processing apparatus to which the present invention is applied is not only a video recording / reproducing apparatus, but also a plurality of audio MPEG standard compression systems for audio compression. A video / audio recording / reproducing apparatus having a mode selection setting which is the recording rate selection is also applicable. In this case, this mode selection setting information can also be adopted as “internal information such as own firmware function and mode setting”.

  Further, the display form of the used capacity itself is not particularly limited. That is, for example, absolute display using a unit (for example, byte) indicating the used capacity may be performed, or relative display using a ratio (for example,%) to the total capacity may be performed.

  The amount based on the used capacity refers to an amount obtained as a result of calculation according to a predetermined rule based on the used capacity expressed in a predetermined unit.

  For example, when the used capacity expressed in a first unit (for example, a sector) is converted into a second unit (for example,%), the used capacity of the second unit is an example of an amount based on the used capacity. .

  Also, for example, the used capacity of the first or second unit is a third unit used in a predetermined application format of the video recording / playback apparatus 1 with an NFC function (for example, playback / recording time for moving images, An amount (for example, a total reproduction time for a moving image or a total number of recorded images for a still image) converted in terms of a unit such as a playback / recording number for an image is an example of an amount based on the used capacity. In other words, it can be said that this example is an example of the amount based on the used capacity according to the characteristics of a predetermined application format.

  Specifically, for example, in an application format for moving image playback, the moving image in the case where all of the used capacity is consumed for recording moving images according to the application format for moving image playback as an amount based on the used capacity. The playback time when all of the moving images are played back from the recording medium 2 with the NFC function according to the playback application format, that is, the total playback time can be adopted as an amount based on the used capacity.

  Also, for example, in the application format for still image playback, the amount based on the used capacity has an NFC function when all of the used capacity is consumed for recording still images according to the application format for still image playback. The number of still images recorded on the recording medium 2, that is, the total number of recorded images can be adopted as an amount based on the used capacity.

  Further, for example, when the remaining capacity of the recording medium 2 with the NFC function is calculated from the total capacity and the used capacity of the first unit or the second unit, the first unit or the second unit remaining capacity is also calculated. It is an example of the quantity based on a used capacity.

  In addition, for example, the remaining capacity of the first or second unit is a third unit (for example, playback / recording time for moving images, still images, etc.) used in a predetermined application format of the video recording / playback apparatus 1 with an NFC function. An amount (for example, a remaining recording time for a moving image or a remaining number of recorded images for a still image) converted in terms of a unit such as a reproduction / recording number for a picture is an example of an amount based on the used capacity. In other words, it can be said that this example is an example of the amount based on the used capacity according to the characteristics of a predetermined application format.

  Specifically, for example, in an application format for recording moving images, recording when moving images are recorded on all of the remaining capacity of the recording medium 2 with the NFC function according to the application format for recording moving images as an amount based on the used capacity. The possible time, ie, the remaining recording time, can be adopted as an amount based on the used capacity.

  In addition, for example, in the application format for recording still images, recording is possible when a still image is recorded in the remaining capacity of the recording medium 2 with the NFC function according to the application format for recording still images as an amount based on the used capacity. The number of sheets, that is, the remaining number of recordings can be adopted as an amount based on the used capacity.

  In other words, for example, as described above, as a result of the selection of the application format method for each video compression, the selection of the image quality mode, or the selection of the screen aspect, the expected remaining capacity that can be used in the video recording setting that the user plans to use The average or maximum average recording time amount at can be adopted as the amount based on the used capacity.

  Here, the average or maximum average recording time amount is an amount existing in the design specification on the compressed video recording / reproducing apparatus (here, the video recording / reproducing apparatus 1 with NFC function) side. This design specification varies depending on the subject content, and it is a design specification that displays the average remaining recording time in the way of recording images of the details and movements of ordinary homes and natural scenery with average operation However, it is also possible to use a very fine image predicted under the usage conditions of a user who is used in a normal sport or special work environment. It may be a design specification that displays a sufficient amount of recording time.

  This is because the remaining usage time to be displayed is calculated by an information processing device (here, an NFC storage unit (here, NFC information storage unit 33 in FIG. 4 and the like described later)) that acquires and calculates basic media information. The information processing apparatus on the NFC function video recording / reproducing apparatus 1) side will be designed, manufactured and sold in the future while maintaining compatibility between the file system and the application format method. This is because it is based on the design policy.

  The used capacity of the recording medium 2 with the NFC function and the amount based on the used capacity are displayed on the display panel 12 of the video recording / reproducing apparatus 1 with the NFC function, as shown in FIGS.

  In the example of FIG. 2, a display bar 12-1 that displays the used capacity of the recording medium 2 with the NFC function in%, and a table 12-2 that displays an amount based on the used capacity according to the characteristics of each application format, Is displayed on the display panel 12.

  That is, in the display bar 12-1, 100% indicates the total capacity of the recording medium 2 with the NFC function, and the gray portion indicates the used capacity. That is, in the example of FIG. 12, it can be easily confirmed that the used capacity is around 65%.

  In the table 12-2, the item “recording application” in the first column displays the type of application format for video recording that the video recording / reproducing apparatus with NFC function 1 has. “HD” means an application format for HD (High Definition) moving image recording. “SD” means an application format for SD (Standard Definition) moving image recording. “DSC” means an application format for recording a still image.

  Specifically, for example, "HD" The H.264 / AVC format method can be adopted. In this case, Direct / PSP exists as the recording mode. Here, “Direct” refers to a recording mode in which a recording stream compatible with a digital broadcasting TS stream of up to 24 Mbps is recorded as it is, and PSP refers to a recording mode in which the recording stream is encoded and recorded into a PSP playback compatible HD stream. However, in the present embodiment, it is assumed that the recording mode of “HD” is the same as the recording mode of “SD” described below.

  As the “SD”, a standard TV recording method can be adopted, and specifically, a program stream method can be adopted. As a recording mode, the maximum bit rate is 15 Mbps, but the upper limit of a DVD-compliant program stream is fixed at 10.08 Mbps. As the recording mode, HQ / SP / LP / EP / LLP and the like are prepared on the set (here, the video recording / reproducing apparatus 1 with NFC function) side. Here, there is a DVD-VF compatible recording mode in which the rate upper limit other than the management information file, the audio standard, and the configuration of the MPEG2-PS system stream itself are recorded in a configuration compatible with the DVD recorder.

  “DCF” is a DCF still image recording method in which an image shot with a digital camera is recorded in JPEG compression, added as additional information of shooting information such as date and shooting location by Exif, and saved as a DCF image file. Can be adopted. Most current digital still image cameras are DCF compatible.

  The DCF (Design Rule for Camera File System) is determined by JEITA: Japan Electronics and Information Technology Industries Association as a standard image file for digital cameras. Exif (Exchangeable Image File Format) specifications are determined by this DCF, and Exif compatible JPEG is DCF.

  In the application format of the still image DSC, the device side sets the captured image size according to its own shooting specifications. For example, depending on the camera still image resolution, 4M (mega), 3M wide aspect ratio, 1.9M, VGA (0.3M), and still image size that can be taken simultaneously with video images in the case of a CMOS image sensor For example, there is a 2.3M wide aspect still image, and a 1.7M still image (4: 3 standard aspect) exists as a specification as a still image size that can be simultaneously shot with a 4: 3 moving image.

  Further, there is a DPOF (Digital Print Order Format) file as a still image printout application. This is an information recording file for automatically printing a captured still image with a print service or a home printer. When an image is recorded, information such as the image size, title, trimming settings, device information, date and time, user name, address, and telephone number are recorded.

You can specify setting information such as the image to be printed, the number of copies, and what information is output together, the information is saved on the memory card, you can print just by inserting the card in the printer, and it is also set when sending to the print service It is a standard file that can save you a lot of time because you only need to pass the card.
This DPOF file also has a small unregistered initial file size. However, attribute information can be registered and added up to 999 files by a registration operation, and the DPOF file size increases, so that the predicted usage amount is added.

  The currently set recording mode among the recording modes that can be selected in each application format is displayed in the “recording mode” item in the second column.

  In this case, for example, with regard to moving images, “recording format” is an HD or SD “application format method” and a video compression rate of XP, HQ +, HQ, SP, or LP, that is, an image quality mode that represents recorded video quality. From the selection setting of “Mode” and “Video Aspect” ratio which is the aspect ratio size of the video which will be attribute information described later, the average or maximum average recording data transfer rate of the different recording target of the compressed video / audio data is determined. The result that is specified and calculated based on the data transfer rate and the like is the remaining recording time (amount based on the used capacity according to the characteristics of each application format). / Remaining number of sheets "will be displayed.

  That is, in the third column “Remaining recording time / Remaining number of sheets”, an amount based on the used capacity corresponding to the feature of each application format is displayed. That is, for “HD” and “SD”, the remaining recording time is displayed in the form of “dd: hh: mm: ss”. Here, “dd” means a two-digit numerical value indicating “day”, “hh” means a two-digit numerical value indicating “hour”, and “mm” indicates “minute”. “Ss” means a two-digit value indicating “second”. On the other hand, for “DSC”, a numerical value indicating the remaining number of recordings is displayed.

  The “attribute information” in the fourth column includes information indicating attributes of the recording medium 2 with the NFC function, such as file system format attribute information described later with reference to FIG. 8, application format attribute information described later with reference to FIG. Is displayed. More precisely, the attribute information of the table information itself of FIG. 8 and FIG. 9 is not displayed, but information generated by the video recording / reproducing apparatus 1 with an NFC function based on these attribute information (specific examples) Is displayed as a result display information in FIG.

  For example, “remaining 2 records” displayed in “attribute information” of “HD” in the example of FIG. 2 indicates that the number of remaining chapters that can be recorded with “HD” is “2”.

  Furthermore, some recording media 2 with an NFC function may not be compatible with the application format of the video recording / reproducing apparatus 1 with an NFC function, that is, recording with the application format is not possible. For example, in the case of the recording medium 2 with an NFC function dedicated to a low bit rate, “HD” is not supported due to insufficient writing speed. In such a case, as shown in the line 12-3 for “HD” in FIG. 3, the application is displayed by displaying it in a display form different from the other lines (in the example of FIG. 3, a hatched display form). It can be shown to the user that the format (“HD” in the example of FIG. 3) is not supported.

  In addition, when the content recorded on the recording medium 2 with the NFC function is protected such as additional write protection, information indicating that the content is protected is displayed in the application format line corresponding to the content. can do.

  Specifically, for example, a lock mark is displayed in the item “attribute information” in the row 12-4 of FIG. 3 as information indicating that protection is applied. Such a lock mark means a state that has been finalized in the R media, or a state in which an additional recording prohibition process has been performed in an application format, and a state in which playback is possible but recording is not possible.

  In other words, “attribute information” displays information indicating whether or not the recording medium 2 with the NFC function can be used for processing of each application format. Here, the use of the recording medium 2 with the NFC function for the processing of each application format means that the recording medium 2 with the NFC function is used as the recording medium of the HD moving image for “HD”, for example.

  In addition, although it cannot be expressed in the figure, if the characters on the line blink at a fast cycle, this means that the remaining number of chapter entries in the application format corresponding to the line is used up, and the upper limit of the number of entries in the application format method is used. It can be shown to the user that the state has been reached.

  Also, although it can not be expressed in the figure, if the characters on the line blink at a slow cycle, this means that the remaining recording time or the number of remaining recordings for the application format corresponding to that line, Alternatively, it is possible to present to the user that the number of remaining chapter entries of the application format is one of the remaining states.

  FIG. 4 shows an outline of an internal configuration example of each device of the video recording / reproducing system of FIG.

  An NFC information read / write control unit 31 and a video recording / playback control unit 32 are provided inside the video recording / playback device 1 with an NFC function. The NFC information read / write control unit 31 is provided with the antenna 11 and the NFC R / W system 41 also shown in FIG. The video recording / playback control unit 32 is provided with a User I / F unit 42 and a video data R / W unit 43.

  Details of the inside of the video recording / reproducing apparatus 1 with an NFC function will be described later with reference to FIG.

  In addition, inside the recording medium 2 with the NFC function, an NFC information storage unit 33 configured by a non-contact IC medium or the like and a memory drive unit 34 are provided. The NFC information storage unit 33 is provided with the antenna 21 and the NFC system 44 also shown in FIG. The memory drive unit 34 is provided with a nonvolatile memory 46 (hereinafter referred to as NVRAM (Non Volatile RAM) 46) and a cash memory 45 (hereinafter abbreviated as Cash 45) for speeding up reading and writing. .

  The NFC information read / write control unit 31 and the NFC information storage unit 33 exchange the information used for calculating the above-described usage amount or the amount based on the usage amount, that is, the basic media usage information by proximity communication.

  Further, as will be described later, the video recording / playback control unit 32 stores the moving image data and still image data in the memory drive unit 34 in a state where the recording medium 2 with the NFC function is attached to the video recording / playback device 1 with the NFC function. Control for recording is performed, and control for reproducing moving image data and still image data recorded in the memory drive unit 34 is performed.

  FIG. 5 shows an example of a detailed configuration inside the recording medium 2 with the NFC function.

  The NFC system 44 includes a transmission / reception circuit 51, a control unit 52, and a memory 53. The control unit 52 stores information data in the memory 53 and reads the information data from the memory 53. The control unit 52 receives the power and clock converted from the electromagnetic wave received from the antenna 21 from the transmission / reception circuit 51, and exchanges data IN and data OUT with the transmission / reception circuit 51.

  That is, information data transmitted as an electromagnetic wave from the NFC information read / write control unit 31 (FIG. 4) of the video recording / reproducing apparatus 1 with the NFC function 1 is stored in the memory 53 via the antenna 21, the transmission / reception circuit 51, and the control unit 52. Is done. The information data stored in the memory 53 is transmitted as electromagnetic waves to the NFC information read / write control unit 31 (FIG. 4) of the video recording / reproducing apparatus 1 with an NFC function via the control unit 52, the transmission / reception circuit 51, and the antenna 21. Sent.

  Note that the information data stored in the memory 53 is mainly the above-described basic media use information, such as the NFC FS information 171 and the NFC application information 172 shown in FIG. However, a specific example of such media basic usage information will be described later with reference to FIGS.

  The memory drive unit 34 reads and writes drive data as a normal drive. For this reason, in addition to the Cash 45 and the NVRAM 46 described above, a CIS Info 54, a Host I / F 55, a MEMCntl 56, and a Ch-ECC Enc / Dec 57 are provided in the memory drive unit 34.

  That is, the memory drive unit 34 is provided with a high-speed Cash 45, and the NVRAM 46 has a bank configuration. The flash memory as NVRAM 46 can only be obtained at a speed of several Mbps even if it is crystallized with nanocrystals to increase the density of the low voltage, so it is possible to increase the speed by sequentially accessing these in parallel. Get the data input / output rate. In order to perform parallel processing at this time, Cash 45 as a multiway cache memory is used, and Ch-ECC Enc / Dec 57 is also provided for controlling the parallel processing. A MEMCntl 56 is provided as a memory control for controlling the Cash 45, and a Host I / F 55 connected to a host for reading / writing to the drive (in this embodiment, a video recording / reproducing apparatus 1 with an NFC function in FIG. 4) is provided. ing. A CIS (Card Information Structure) Info 54 is provided as a card attribute information section for notifying the host of the internal configuration information at the time of startup by protocol communication at the time of startup, thereby enabling notification of the internal configuration type. .

  FIG. 6 shows a detailed internal configuration example of the video recording / reproducing apparatus 1 with an NFC function.

  The user I / F control unit 111 to the drive control unit 120 in the example of FIG. 6 substantially correspond to the video recording / playback control unit 32 in the example of FIG.

  The user I / F control unit 111 controls a user interface that receives an input from the operation device 101 operated by the user. The operation device 101 includes, for example, a remote controller, a touch panel device using the display panel 12 built in the video recording / playback device 1 with an NFC function, and the like.

  The system control unit 112 is configured to include a still image application format control unit 131 to a memory card / drive control unit 135.

  The still image application format control unit 131 converts the compressed still image data into a still image application format, that is, “DSC” in FIG. 2 described above, specifically, for example, JPRG (Joint Graphics Experts Group), JFIF ( Generate management information such as file headers for conversion to Jpeg File Interchange Format (EXIF), Exchangeable Image File Format (EXIF), Tag Image File Format (TIFF), etc.

  The moving image SD Movie application format control unit 132 is a system stream for configuring a compressed SD moving image into a moving image application format, that is, “SD” in FIG. 2 described above, specifically MPEG, for example. Generate management information.

  The moving picture HD Movie application format control unit 133 converts the compressed HD moving image into an HD moving image application format, that is, “HD” in FIG. 2 described above, specifically, an HD application format such as H246 / AVC, for example. System stream management information configured as follows is generated.

  The FAT file system control unit 134 controls recording / reproduction of video / audio data in a FAT (File Allocation Table) file format.

  The memory card / drive control unit 135 performs media recording such as writing to the unused space in the drive medium inside the drive and reading the specified written file in accordance with the drive data transfer protocol for the recording medium 2 with NFC function, for example. Instruct to start playback.

  The PC input / output I / F 113 is a user interface that receives information input / output from / to the personal computer 102.

  The video / audio input / output I / F 114 inputs / outputs video / audio data to / from an external device. As an external device, in the example of FIG. 6, a video / audio output device 103 including a camera, a microphone, and the like is connected to the video / audio input / output I / F 114. In addition, a speaker that outputs audio corresponding to the audio data output from the video / audio input / output I / F 114, a monitor that displays video corresponding to the video data output from the video / audio input / output I / F 114, etc. It can be connected to the video / audio input / output I / F 114 as a device.

  The video output from the video / audio input / output I / F 114 is displayed on the display panel 12 shown in FIG.

  The still image compression / decompression unit 115 compresses still image data provided from the video / audio input / output I / F 114 in accordance with the application format of the still image, that is, “DSC” in FIG. 2 described above, and the resulting compression Still image data is provided to the data control unit 119. At that time, a so-called still image application time is provided from the time data unit 118. The still image compression / decompression unit 115 decompresses the compressed still image data provided from the data control unit 119 and provides the still image data obtained as a result to the video / audio input / output I / F 114.

  The video SD Movie compression / decompression unit 116 compresses the video data provided from the video / audio input / output I / F 114 in accordance with the application format of the SD video, that is, the “SD” in FIG. The moving image data is provided to the data control unit 119. At that time, a so-called video application time is provided from the time data unit 118. The moving image SD Movie compression / decompression unit 116 expands the compressed moving image data provided from the data control unit 119, and provides the moving image data obtained as a result to the video / audio input / output I / F 114.

  The video HD Movie compression / decompression unit 117 compresses the video data provided from the video / audio input / output I / F 114 in accordance with the HD video application format, that is, the “HD” in FIG. The moving image data is provided to the data control unit 119. At that time, a so-called video application time is provided from the time data unit 118. The video HD Movie compression / decompression unit 117 decompresses the compressed video data provided from the data control unit 119 and provides the video data obtained as a result to the video / audio input / output I / F 114.

  Hereinafter, the data before compression, which is the processing target of the still image compression / decompression unit 115 to the moving picture HD Movie compression / decompression unit 117, is collectively referred to as video / audio data, and the compressed data is collectively referred to as compressed video / audio data. Called. In addition, the management information generated by the still image application format control unit 131 to the moving image HD Movie application format control unit 133 is collectively referred to as video / audio data management information.

  During recording, the data control unit 119 uses the compressed video / audio data provided from the still image compression / decompression unit 115 to the moving image HD Movie compression / decompression unit 117 and the still image application format control unit 131 to the moving image HD Movie application format control unit 133. The management information of the generated video / audio data is accumulated to prepare for the start of recording.

  The drive control unit 120 adds the compressed video / audio data to be recorded as SCR time information (time provided from the time data unit 118) from the still image compression / decompression unit 115 to the moving image HD Movie compression / decompression unit 117 as a system stream. When it is sequentially provided in units of empty packets of 2 kbytes, video object units (VOBU) stored in units of GOPs are sequentially generated, and a cell (CELL) or RUV (one or more VOBUs are assembled). Recording Unit Video Object) is stored in the data control unit 119, and CELL or RUV is collected and recorded on the recording medium 2 with NFC function.

  In summary, the user I / F unit 42 of the video recording / playback control unit 32 in the example of FIG. 4 described above is mainly a part of the user I / F control unit 111 and the system control unit 112 in the example of FIG. It is comprised by. Further, the video data R / W 43 of the video recording / playback control unit 32 in the example of FIG. 4 is mainly configured by the system control unit 112 to the drive control unit 120 in the example of FIG.

  The graphic display control unit 121 displays, for example, an image for displaying a usage state such as a usage capacity of the recording medium 2 with an NFC function or an amount based on the usage capacity, for example, the image in the example of FIGS. Control to display on the display panel 12 through the voice input / output I / F 114 is performed. In other words, the graphic display control unit 121 has a function of realizing at least a part of a panel display control unit 185 of FIG.

  The NFC R / W system 41 of the NFC read / write controller 31 uses the above-mentioned basic medium usage information as an antenna each time the recording medium 2 with NFC function after data writing is completed is inserted into or removed from the video recording / playback apparatus 1 with NFC function. 11 has a function of storing and writing in the NFC information storage unit 33 (FIG. 5 and the like) of the recording medium 2 with an NFC function by proximity communication via 11, that is, a so-called writer function.

  When the NFC function video recording / reproducing apparatus 1 is in the NFC reading mode and the NFC function recording medium 2 is approached from the outside, the NFC R / W system 41 exhibits a so-called reader function. By outputting an electromagnetic field from the antenna 11, the basic medium use information is acquired from the NFC information storage unit 33 (FIG. 5) of the recording medium 2 with the NFC function by proximity communication. A specific example of the media basic usage information will be described later with reference to FIGS.

  As described above, the NFC R / W system 41 has a so-called reader / writer function. In the example of FIG. 6, the NFC R / W system 41 includes the I / F 151 to the memory 156. That is, in the NFC R / W system 41, each of the transmission / reception circuit 153, the control unit 152, and the memory 156 corresponding to the transmission / reception circuit 51, the control unit 52, and the memory 53 of the NFC system 44 of FIG. ing. Furthermore, since the NFC R / W system 41 plays the role of a reader / writer device, it is necessary to supply power and a clock from itself, and therefore, it has a power supply unit 154 and a clock supply unit 155. Further, the I / F 151 is connected to the NFC R / W system 41 in order to exchange information with the user I / F control unit 111, that is, to exchange information with the video recording / playback control unit 32 side in FIG. Is provided.

  In addition to the NFC information read / write control unit 31, the NFC function-equipped video recording / reproducing apparatus 1 further includes an NFC information read control unit 122. That is, when the user brings the recording medium 2 with the NFC function close to the video recording / reproducing apparatus 1 with the NFC function in order to confirm the used capacity of the recording medium 2 with the NFC function on the display panel 12, Depending on the positional relationship with the installation position of the NFC information read / write control unit 31, reading of the media basic usage information may fail. Therefore, in order to reduce such possibility as much as possible, an NFC information reading control unit 122 having only a reader function is provided in advance.

  That is, the NFC information read control unit 122 includes the antenna 141 having the same function and configuration as the antenna 11 of the NFC information read / write control unit 31 and the NFC R / W system 41 of the NFC information read / write control unit 31. The NFC R system 142 has at least the same function and configuration as the reader function. Note that the NFC information reading control unit 122 is not an essential component for the NFC function video recording / reproducing apparatus 1 in consideration of the provision of the NFC information reading control unit 122 as described above, and can be read unsuccessfully. A plurality of them may be provided to further reduce the property.

  In the video recording / playback system having the configuration shown in FIGS. 1 to 6, the video recording / playback apparatus 1 with an NFC function obtains media basic usage information from the recording medium 2 with an NFC function by proximity communication, and then the media basics. In addition to the usage information, various types of internal information such as a video / audio encoder / decoder (in the example of FIG. 6, the still image compression / decompression unit 115 to the moving image HD Movie compression / decompression unit 117), the application format method and its attributes, Using various information such as the file system method and its attributes, the used capacity of the recording medium 2 with the NFC function and the amount based on the used capacity can be calculated and displayed on the display panel 12. In addition, as described above, whether or not the recording medium 2 with the NFC function can be used for processing of a predetermined application format is also generated as appropriate and displayed on the display panel 12 as appropriate.

  That is, for the user, the above-described series of processing is performed by simply performing a simple operation (operation) such as bringing the recording medium 2 with the NFC function close to the video recording / reproducing apparatus 1 with the NFC function, and recording with the NFC function is performed. The used capacity of the medium 2 and the amount based on the used capacity are displayed on the display panel 12. Further, the display panel 12 not only uses capacity but also mimics the amount based on the amount of use according to the characteristics of each application format so that the user can easily understand the state of use of the recording medium 2 with the NFC function. For example, the remaining recording time of moving images and the remaining number of recorded still images are also displayed.

  FIG. 7 shows a functional block diagram showing each function for executing the above series of processing.

  In the example of FIG. 7, NFC FS information 171 and NFC application information 172 are stored in the NFC information storage unit 33 of the recording medium with NFC function 2 as basic media usage information. Specific examples of the NFC FS information 171 and the NFC application information 172 will be described later with reference to FIGS.

  The video recording / playback control unit 32 includes an FS remaining amount calculation unit 181, an application remaining amount calculation unit 182, and a remaining amount display control unit 183.

  The FS remaining amount calculation unit 181 mainly acquires the NFC FS information 171 in the basic medium usage information read from the NFC information generation / acquisition unit 184 described later. Based on the NFC FS information 171, the remaining FS remaining amount calculation unit 181 performs various types of usage capacity (usage% value) for the file system method of the recording medium 2 with the NFC function, various attribute data of the file system, and the like. Information is calculated or generated and provided to the remaining amount display control unit 183. Further, the information used for calculating the used capacity (used% value) (hereinafter referred to as used capacity calculation utilization information) is also required for calculating the amount based on the used capacity. Also provided.

  The remaining application calculation unit 182 mainly acquires the NFC application information 172 in the basic medium usage information read from the NFC information generation / acquisition unit 184 described later. Then, the application remaining amount calculation unit 182 includes the NFC application information 172, the used capacity calculation usage information from the FS remaining amount calculation unit 181, and the mode setting and the corresponding type of the NFC function-equipped video recording / reproducing apparatus 1 side. Based on the information, etc., the amount based on the capacity used according to the characteristics of each application format (moving image recording remaining time, still image recording remaining number, etc.) is calculated, and this video recording / reproducing device with NFC function is appropriately used. Various types of information such as attribute information of the application format method of each recording / playback that can be selected in mode 1 are calculated and output to the remaining amount display control unit 183.

  Various types of information calculated by the FS remaining amount calculation unit 181 and the application remaining amount calculation unit 182 and provided to the remaining amount display control unit 183 are collectively referred to as result display information hereinafter. A specific example of the result display information will be described later with reference to FIG.

  The remaining amount display control unit 183 generates graphic display data for the image including the result display information, and provides it to the panel display control unit 185. That is, the graphic display data for the image including the used capacity of the recording medium 2 with the NFC function and the amount based on the used capacity, for example, the graphic display data for the images in the examples of FIGS. It is created by the control unit 183 and provided to the panel display control unit 185.

  The panel display control unit 185 causes the display panel 12 to display an image corresponding to the graphic display data. That is, an image such as the example of FIG. 2 or FIG. 3 described above is displayed on the display panel 12.

  In this case, the NFC FS information 171 and the NFC application information 172 are read from the NFC information storage unit 33 of the recording medium 2 with the NFC function by proximity communication, and provided to the FS remaining amount calculating unit 181 and the remaining application amount calculating unit 182. The functional block is the NFC information generation / acquisition unit 184.

  In this way, as a confirmation operation before recording or playback on the recording medium 2 with the NFC function in which the video / audio data is recorded, the user uses the recording medium 2 with the NFC function as a video recording / playback apparatus with the NFC function. 1, the NFC function-equipped video recording / playback apparatus 1 reads the basic media usage information from the NFC function-equipped recording medium 2 by proximity communication, and then calculates the usage capacity and the amount based on the usage capacity. The result can be displayed on the display panel 12. However, this processing example will be described later with reference to FIG.

  On the other hand, after the video recording / playback control unit 32 of the video recording / playback apparatus 1 with the NFC function has recorded the video / audio data in the memory drive unit 34 of the recording medium 2 with the NFC function (the functional block for executing the recording process is not shown). The NFC information generation / acquisition unit 184 updates the contents of the NFC FS information 171 and the NFC application information 172 in the NFC information storage unit 33 of the recording medium 2 with the NFC function by proximity communication.

  Specifically, for example, when the recording processing of video / audio data based on a series of photographing is completed, the video recording / playback control unit 32 acquires the total capacity and the used capacity of the memory drive unit 34 of the recording medium 2 with the NFC function, Further, file system attribute information is acquired and provided to the NFC information generation / acquisition unit 184. The video recording / playback control unit 32 acquires the recording signal method type and the recording data attribute type of the application format of the memory drive unit 34 and provides them to the NFC information generation / acquisition unit 184. The NFC information generation / acquisition unit 184 generates update data from these pieces of information, and performs near field communication of the update data so that the NFC in the NFC information storage unit 33 of the recording medium 2 with the NFC function is provided. FS information 171 and NFC application information 172 are updated. Note that an example of a functional block for executing such processing will be described later with reference to FIG. An example of such processing will be described later with reference to FIG.

  In cases other than video recording, for example, when the recording medium 2 with the NFC function is attached to the video recording / reproducing apparatus 1 with the NFC function, there is an inconsistency in the usage state of the NFC information storage unit 33 and the actual memory drive unit 34. As a response to the case, the NFC function-equipped video recording / reproducing apparatus 1 can rewrite and update the contents of the NFC information storage unit 33 in order to confirm the inconsistency and to reconfirm the inconsistency. However, an example of a functional block for executing such processing will be described later with reference to FIG. An example of such processing will be described later with reference to FIG.

  Further, when the format of the memory drive unit 34 of the recording medium 2 with the NFC function is initialized, the contents of the NFC information storage unit 33 must be initialized at the same time. Such initialization processing can also be executed by the video recording / reproducing apparatus 1 with an NFC function. However, an example of a functional block for executing such processing will be described later with reference to FIG. An example of such processing will be described later with reference to FIG.

  Next, a specific example of media basic usage information will be described with reference to FIGS. 8 and 9. That is, FIG. 8 shows a specific example of the NFC FS information 171 in the basic medium usage information. FIG. 9 shows a specific example of the NFC application information 172 in the basic media usage information.

  In the example of FIG. 8, the NFC FS information 171 is configured as a table, and has numerical values of “total capacity”, “used capacity”, and “cluster size during stream recording” in units of sectors, and a file system. With attribute information.

  The attribute information of the file system includes “media recording speed”, “media type”, “FS recording method”, and “media protection information”.

  “Media recording compatible speed” refers to a continuous recording data transfer speed converted from a CD (Compact Disc) transfer rate of 150 kByte / sec as a single speed. Some flash memory cards have sufficient capacity but are not suitable for stream recording / reproduction in the market for data recording applications. In such a flash memory card, there is a possibility that a problem may occur in smooth recording unless there is a continuous transfer rate of about 1.5 times the video stream to be recorded. For example, if it is 40x double speed, it is 6MByte / sec, that is 48Mbps, and it satisfies the specifications enough for HD video data recording. 12Byte / sec, 96Mbps is required. Therefore, there is a possibility that such a flash memory card that is not suitable for recording HD video data may be adopted as the recording medium 2 with the NFC function. Therefore, “Media recording speed” is one of the attribute information of the file system. Is provided.

  “Media type” is information indicating which type of media, such as R media, RW media, and read-only ROM media.

  The “FS recording system type” is information indicating which type of file system system such as various types of FAT, NTFS, and ET2.

  “Media protection information” refers to the presence / absence information of the protection setting of the media mechanism below the application format. For example, protection setting information of a protection method that electrically detects the mechanical slide SW (switch) setting position and disables writing, and setting and reading are performed by writing and reading by issuing a drive firmware command to a predetermined invisible media area of the media There are media protection setting information, media protection setting information, etc., in which a file system is written and read / written in a predetermined area using a file system method.

  In the example of FIG. 9, the NFC application information 172 is configured as a table. For each application format type (described as “recording application type” in the example of FIG. 9), “last file time”, “ Each has application format attribute information such as “number of final application entries” and “protection information”.

  As the types of application formats in the example of FIG. 9, “HD” for HD moving image recording, “SD” for SD moving image recording, and “SD” for still image recording correspond to the example of FIG. 2 described above. DSC "is provided.

  “Last file time” means that the last file recording time in each application format is the time zone time, that is, the standard time GMT (Greenwich Mean Time) plus the time difference (ZONE) in that time zone. Information expressed in time. Specifically, this information includes a two-digit value indicating the year (yy), a two-digit value indicating the month (mm), a two-digit value indicating the day (dd), and a two-digit value indicating the minute ( mm) and a two-digit value (ss) indicating the second.

  The “number of final application entries” refers to the final number of entries such as the last chapter in each application format, and is represented by a numerical value.

  “Protection information” refers to application protection presence / absence information in each mode of each application format, and is represented by its type and presence / absence.

  In addition, although not shown in FIG. 9, the video signal system type and the audio signal system type (which can be replaced with, for example, PSP compatible signal system, i-Pod compatible signal system, DVD-VF system), The NFC application information 172 can also have application format attribute information such as a protection state (for example, a free state / closed processing state / application protection state / necessary consistency processing state is taken).

  FIG. 10 shows a specific example of remaining amount calculation information used when the remaining amount display control unit 183 in FIG. 7 generates graphic display data.

  The remaining amount calculation information is roughly classified into “FS remaining amount calculation information” and “application format remaining amount calculation information”.

  “FS remaining amount calculation information” refers to information calculated by the FS remaining amount calculation unit 181 in FIG. 7 and provided to the remaining amount display control unit 183. More specifically, “result display information” in the rightmost column is information calculated by the FS remaining amount calculation unit 181 and finally provided to the remaining amount display control unit 183 as described above. . “Input information from NFC” is the NFC FS information 171 in FIG. 8 described above. “Set-side information” is information created or acquired in the video recording / reproducing apparatus with NFC function 1 as a set in order to calculate or generate “result display information”.

  Specifically, for example, the used capacity (used% value) of the recording medium 2 with NFC is the ratio of the used quantity (sector), which is the amount of data used as a file grasped by the file system, to the total capacity (sector). It can be calculated by calculating the percentage. However, in actual use, files are consumed in units of clusters, so the used capacity (% used) can be calculated in units of clusters, and fractions can be calculated by rounding up as used. Yes, “set side information” includes “total number of bytes (sector)” converted to “number of bytes” and “use amount (sector)” of “recorded cluster conversion” so that it can be used for such calculations. ing. Note that “use amount (sector)” in FIG. 10 corresponds to “use capacity: sector value” in FIG.

  These "total capacity (sector)" "byte number conversion value" and "usage amount (sector)" "recording cluster conversion" together with "stream recording cluster size" "remaining amount calculation (recording unit)" The used capacity calculation utilization information described above is also provided to the application remaining amount calculation unit 182 as “set-side information” used for calculating the amount based on the used capacity (recording remaining time, remaining recording number, etc.). .

  Also, based on “Media recording speed” and “Firmware encode bit rate in set setting mode”, “Result HD”, “Video SD”, “Still image only” Etc. are generated.

  Specifically, for example, “media recording speed” means a continuous data transfer speed of media writing on the recording medium 2 side with the NFC function, and in this embodiment is a CD (Compact Disc) transfer rate. It is expressed as a value converted to 1x speed at 150kByte / sec.

  Further, for example, FIG. 11 shows the data transfer rate required in each mode of the corresponding application format recording method when the video recording / playback apparatus 1 with NFC function records video / audio data. Specifically, MPEG-TS recorded on a Blu-Ray Disc, MPEG-PS in the same format as recorded on a DVD, and H.P. H.264 / AVC, the required data transfer rate in each recording mode for each type is shown. Note that the maximum remaining time of the media type is an example used for calculating the data transfer rate. Of the “data transfer rate” in the example of FIG. 11, the value for the setting recording mode of the predetermined application format recording method is used as “firmware encoding bit rate information in the set setting mode”. .

  In this case, since smooth video recording requires a media continuous recording transfer rate 1.5 times the data transfer rate of the signal itself, a standard based on this "firmware encoding bit rate information in set setting mode" is established. Is done. If the “media recording speed” of the recording medium 2 with the NFC function exceeds the standard, the recording medium 2 with the NFC function can record in the set recording mode of the application format recording method. It is determined. On the other hand, when the standard is not satisfied, it is determined that the recording with the NFC function 2 cannot be recorded in the set recording mode of the application format recording method.

  Then, based on such a determination result, “result display information” such as “moving image HD compatible”, “moving image SD compatible”, “still image dedicated”, and the like is generated.

  Returning to FIG. 10, “recording method correspondence determination” based on “media type attribute” and “FS recording type attribute” is used as “set-side information”, whereby “reproduction availability” is set to “result display information”. Is generated as

  “Recording method compatibility determination” based on “Media type attribute” and “FS recording type attribute” means that each attribute information such as “Media type” and “FS recording method” is set (video recording apparatus 1 with NFC function) side. Judgment on the result of considering whether it corresponds to the recording / reproducing data rate of the internal encoder / decoder (the still image compression / decompression unit 115, the moving image SD Movie compression / decompression unit 116, and the moving image HD Movie compression / decompression unit 117 of FIG. 6) Information. Note that the “data transfer rate” in FIG. 11 described above may be employed as the recording / reproduction data rate.

  In contrast to such “FS remaining amount calculation information”, “application format remaining amount calculation information” refers to the following information.

  That is, the “application format remaining amount calculation information” refers to information calculated by the remaining amount calculation unit 182 in FIG. 7 and provided to the remaining amount display control unit 183. More specifically, the “result display information” in the rightmost column is information calculated by the application remaining amount calculation unit 182 and finally provided to the remaining amount display control unit 183. “Input information from NFC” is the NFC application information 172 in FIG. 9 described above. “Set-side information” is information created or acquired in the video recording / reproducing apparatus with NFC function 1 as a set in order to calculate or generate “result display information”.

  Specifically, the “HD recording application format type” is information in the “HD” column of the NFC application information 172. Such information and the corresponding “set side information”, that is, “selection setting mode information HD / SD”, “selection setting mode HQ / SP” currently set on the set (video recording / playback apparatus 1 with NFC function) side. The “remaining recording time” for “HD” is calculated as “result display information” using various information such as the data transfer rate determined from “/ LP” and the above-described used capacity calculation usage information. The The details of the “recording remaining time” will be described later.

  The “SD recording application format type” is information in the “SD” column of the NFC application information 172. Such information and the corresponding “set side information”, ie, “selection setting mode information HD / SD”, “selection setting mode information HQ / currently set on the set (video recording / playback apparatus 1 with NFC function) side” Using the various information such as the data transfer rate determined from “SP / LP” and the above-described used capacity calculation use information, “recording remaining time” for “SD” is calculated as “result display information”. Is done. The details of the “recording remaining time” will be described later.

  That is, “selection setting mode information HD / SD” refers to the current selection setting information of the application format methods “HD” and “SD”. “Selection setting mode information HQ / SP / LP” is a video compression rate of “XP”, “HQ +”, “HQ”, “SP”, “LP” of “HD” and “SD”. That is, the current selection setting information in the image quality mode representing the recorded video quality. Therefore, as described above, from the selection setting mode information HD / SD, the selection setting mode information HQ / SP / LP, and the selection setting of the video aspect ratio which is the aspect ratio of the video, the compressed video / audio is compressed. An average or maximum average recording data transfer rate of different recording targets of data is specified. Thus, the maximum average recording data transfer rate or the like is used to calculate the number of remaining recording hours, that is, “recording calculation time”.

  The “DSC recording application format type” is information in the column “DSC” of the NFC application information 172. Data transfer rate for such information and the corresponding “set side information”, that is, “selection setting mode information 3M / 2.1M / VGA” currently set on the set (video recording / playback apparatus 1 with NFC function) side The “remaining number of recorded sheets” for “DSC” is calculated as “result display information” using the above-described various information and the above-described used capacity calculation utilization information. The details of the “recording remaining number” will be described later.

  Also, based on the “last recorded file date” and “number of used application entries”, “file number availability management up to the set specification upper limit of each application format” is generated, and this is used as “set side information” As a result, “appendability of each application” is generated as “result display information”.

  Further, based on “protection information presence / absence and attribute information” (however, only “protection information” is shown in the example of FIG. 9), “protection release possibility determination” is made, and this is used as “set side information”. "Recordability" is generated as "result display information".

  Here, a specific calculation method and characteristics of “remaining recording time” and “remaining recording number” will be described. Hereinafter, the calculation of “remaining recording time” and “remaining recording number” will be referred to as remaining amount calculation as appropriate. Further, the video recording / reproducing apparatus 1 with the NFC function is also referred to as a set.

  Hereinafter, it will be described in actuality that the average bit rate of moving images used for remaining amount calculation or the maximum file size of still images is determined by the firmware control setting data in the set and used for remaining amount calculation.

  Regarding the calculation of the “recording remaining time” when shooting a movie, the estimated remaining time (ie, “recording calculation time”) can be calculated safely even when the shooting condition that the subject continues to move and the bit rate of encoding is high. ) The user is expected to continue shooting during the period. This is because if the remaining amount of shooting runs out in a shorter time than the shooting time expected at the start of moving image shooting (that is, the calculation result of the “recording remaining time”), the user is troubled. For this reason, it is preferable to calculate the “remaining recording time” assuming that the approximate average bit rate is close to the worst condition.

  In this case, as information serving as a reference for calculating the “recording remaining time” of the moving image, the moving image shooting of the moving image encoder (moving image SD Movie compression / decompression unit 116 or moving image HD Movie compression / decompression unit 117 in the example of FIG. 6) in the set is used. An average bit rate upper limit can be used.

  For example, VBR recording, which is used in high-performance equipment as a high-quality average bit rate for video shooting, has a peak rate value of 10.08 Mbps, and the actual encoding rate target value for video encoders. Because can be set to about 8.6Mbps inside and outside, this value can be adopted. However, if a video camera that has many opportunities to shoot fast-moving subjects or continue hand-held panning shots is adopted as the video recording / playback device 1 with the NFC function, the shooting screen subject continues to move, and the bit rate is It should be noted that the situation of sticking to the peak value can also occur.

  For example, the average bit rate set near the worst condition of the upper limit of the MPEG2 encoding bit rate is 9 Mbps. However, the upper limit of the MPEG2 encoding bit rate of the DVD application format must comply with E-STD buffer model restrictions. In the case of no audio, the upper limit of MPEG2 encoding bit rate is 9.8Mbps, but if recording without audio while taking ECC alignment of recording media 2, it will drop to about 9.5Mbps, and further recording with PS with 5.1ch audio Then it is necessary to drop to about 9.1Mbps. In consideration of the above, it may be adopted as the upper limit value of the moving image shooting average bit rate for MPEG2.

  Also, each value of “data transfer rate” in FIG. 11 can be adopted as the moving image shooting average bit rate upper limit value.

  By adopting the upper limit value of the moving image shooting average bit rate in this way, the application remaining amount calculation unit 182 in FIG. 7, for example, uses the above-described used capacity calculation usage information, that is, the “set side” of the FS remaining amount calculation information. The bit rate conversion value of the remaining capacity of the recording medium 2 with the NFC function is calculated from some of the “information”, and the bit rate conversion value is set to the currently selected “selection setting mode information HD / SD”, “selection setting”. By dividing the video shooting average bit rate upper limit value specified from “mode information HQ / SP / LP” etc., and rounding up the remainder in one cluster unit in the case of FAT which is a recording unit of the stream, The “recording remaining time” is calculated.

  The “result display information” for “SD” can be calculated in the same manner.

  In addition, the calculation of the “number of remaining recordings” at the time of still image shooting results in a calculation result that the subtraction of the number of sheets is not reduced one by one, but in some cases, it is two, and in some cases it should have been taken, but not reduced. there is a possibility. Even if it is not a problem for the photographer to take the still image, the remaining number does not decrease (that is, the calculation result of “the number of remaining recordings” does not change). It is a problem that a symptom that the calculation result of “the number of remaining recordings” is reduced at once is a problem. In particular, when continuous shooting is performed, it is a problem that there is no remaining recording amount in the middle. In order to solve this problem, it is preferable to always calculate the “recording remaining number” based on the maximum image file size per still image encoder in the set for each screen size.

  That is, even if the still image is called continuous shooting, it is up to several tens, and the “remaining number of recordings” can be recalculated every time shooting is finished. However, for example, there is a characteristic that the file size is extremely small on a screen where the subject is flat and the spatial frequency of the image is low, and conversely, the file size is large when the spatial frequency of the subject image is high. Therefore, at the time of still image encoding, it is necessary to set an upper limit value of data and compress the still image.

  Therefore, as information serving as a reference for calculating the “recording remaining number” of still images, the upper limit value of data per still image photographed by the still image encoder (still image compression / decompression unit 115 in the example of FIG. 6) in the set is used. (Referred to as a still image shooting upper limit) can be used.

  In this case, the application remaining amount calculation unit 182 in FIG. 7 uses, for example, some of the above-described used capacity calculation use information, that is, “set side information” of the FS remaining amount calculation information, of the recording medium 2 with the NFC function. The value of the remaining capacity is calculated, and this value is divided by the still image shooting upper limit value for the currently set “selection setting mode information 3M / 2.1M / VGA”, and the integer value is calculated for “DSC”. Is calculated as “the number of remaining recordings”.

  Further, a method for calculating the remaining amount when the total capacity of the recording medium 2 with the NFC function is large will be described below with reference to FIG.

  In other words, if the total capacity of the recording medium 2 with the NFC function does not exceed several GB, the remaining amount may be calculated as the consumption of file registration in the cluster + file system.

  On the other hand, when the total capacity of the recording medium 2 with the NFC function exceeds several GB and the used capacity is still small, that is, when the remaining capacity is large, for example, the “recording remaining number” of still images is several thousand. As the number of shots and tens of thousands of shots can easily be reached, the time that cannot be ignored is calculated by calculating the “remaining number of shots” for the consumption of file registration in the cluster + file system each time a shot is taken. The problem that it takes is generated.

  Therefore, in order to solve this problem, the “recording remaining number” calculation process may be divided into two steps as in steps SA and SB of FIG.

  That is, the step SA is a step of dividing the remaining capacity by a predetermined unit of several hundred video objects, a set time unit as a time of several hundreds of sheets, or a sector set corresponding to the set number of sheets. As a result, it is possible to reduce the target range of precise “recording remaining number” and “recording remaining time” calculations (hereinafter referred to as “residual amount precise calculation”) corresponding to the consumption of file registration in the cluster + file system.

  That is, the remaining amount precision calculation target range includes one sector set of the remaining capacity and the remaining capacity of the division result of step SA (the area of the small square at the end of the arrow of step SA in FIG. 12). Alternatively, the remaining amount precision calculation may be performed on one sector set. Such processing is executed as step SB.

  In other words, step SA can be said to be a step of calculating an approximate amount of “remaining recording number of sheets” and “remaining recording time”. Therefore, after subtracting the remaining amount precise calculation target range in step SB from the approximate result in step SA, the precise computation result in step SB is added to obtain the precise “recording remaining number” and “recording remaining time”. Calculation is possible.

  Next, with reference to FIGS. 13 to 17, some examples of processing involving near field communication performed between the video recording / reproducing apparatus 1 with NFC function and the recording medium 2 with NFC function will be described.

  As described above, as a confirmation work before recording or playback on the recording medium 2 with the NFC function in which the video / audio data is recorded, the user inserts the recording medium 2 with the NFC function into the video recording / playback apparatus with the NFC function. 1 (see FIG. 1), the video recording / playback apparatus 1 with an NFC function reads out basic media usage information from the recording medium 2 with an NFC function by proximity communication, and calculates the usage capacity and the amount based on the usage capacity. Then, the calculation result (see FIGS. 2 and 3) can be displayed on the display panel 12. An example of such a series of processing is shown in the flowchart of FIG.

  In step S1, the user I / F control unit 111 (FIG. 6) issues an NFC status information read command to the NFC information read / write control unit 31 (FIG. 6, FIG. 7, etc.).

  In step S <b> 2, the NFC information read / write control unit 31 reads consistency information into the NFC information storage unit 33 (FIG. 7, etc.) of the recording medium 2 with an NFC function by proximity communication and acquires NFC read state information. Here, the NFC reading state information refers to the NFC FS information 171 and the NFC application information 172 stored in the NFC information storage unit 33 at the time of the processing in step S2.

  In step S <b> 3, the NFC information read / write control unit 31 sends an NFC status information read acquisition completion response to the user I / F control unit 111. At this time, the NFC reading status information, that is, the NFC FS information 171 and the NFC application information 172 are also transferred from the NFC information read / write control unit 31 to the user I / F control unit 111.

  In step S4, the user I / F control unit 111 issues an NFC state information display command to the video recording / playback control unit 32 (FIG. 7). At this time, the NFC reading status information, that is, the NFC FS information 171 and the NFC application information 172 are also transferred from the user I / F control unit 111 to the video recording / playback control unit 32.

  That is, in the example of FIG. 7, the NFC information read / write control unit 31 and the video recording / playback control unit 32 are drawn so as to directly exchange information, but in reality, the user I / F control unit 111. Information is exchanged via This is reflected in the example of FIG. 14 described later.

  In step S5, the video recording / playback control unit 32 controls the panel display control unit 185 (FIG. 7) to switch the display panel 12 to the NFC state information display screen mode.

  In step S <b> 6, the video recording / playback control unit 32 generates the graphic display data described above and provides it to the panel display control unit 185. In step S7, the panel display control unit 185 causes the display panel 12 to display the NFC state information image corresponding to the graphic display data. That is, the NFC state information image refers to an image including “result display information” in FIG. 10, for example, more specifically, an image such as the example in FIG. 2 or FIG.

  13, for example, after the video recording / playback control unit 32 of the video recording / playback apparatus 1 with NFC function records the video / audio data in the memory drive unit 34 of the recording medium 2 with NFC function, The NFC information read / write control unit 31 updates the contents of the NFC FS information 171 and the NFC application information 172 in the NFC information storage unit 33 of the recording medium 2 with the NFC function by proximity communication. A functional block diagram showing each function for executing such a series of processes is shown in FIG. 14, and a flowchart for explaining an example of such a series of processes is shown in FIG.

  Each functional block in the functional block diagram of FIG. 14 executes not only the processing of the flowchart of FIG. 15 but also the processing of the flowcharts of FIGS. For this reason, for each function of each functional block provided in the video recording / playback control unit 32, that is, for each function of the video recording API 201 to the recognition management API 205, each processing in FIGS. 15 to 17 will be described. The explanation will be omitted here, as it will become clearer.

  In the example of FIG. 15, while the video recording / reproducing apparatus 1 with NFC function is recording the video / audio data in the memory drive unit 34 of the recording medium 2 with NFC function, the Rec Stop command (video / audio data recording When a stop instruction) is issued, the processing after the next step S11 is executed.

  In step S <b> 11, the user I / F control unit 111 provides a Rec Stop command to the video recording API 201. In step S <b> 12, the video recording API 201 executes video recording stop processing for the App Format unit 202. In step S <b> 13, the App Format unit 202 executes a video file close process for the File System unit 203. App Format is an abbreviation for application format.

  In step S <b> 14, the file system unit 203 executes media writing processing on the memory drive unit 34 of the recording medium 2 with NFC function. The media writing process here refers to recording audio / video data (file body data) that has not been recorded in the memory drive unit 34 at the time of the Rec Stop instruction in the memory drive unit 34, and changing the file system of the memory drive unit 34. A series of processing until updating.

  In step S15, the File System unit 203 notifies the App Format unit 202 of the completion of the FS end process. In step S <b> 16, the App Format unit 202 notifies the video recording API 201 of completion of APP termination processing. In step S <b> 17, the video recording API 201 notifies the user I / F control unit 111 of a video file recording completion response.

  In step S18, the App Format unit 202 and the File System unit 203 perform recording entry information update and content reproduction IDX information update.

  Receiving the video file recording completion response in step S17, the user I / F control unit 111 issues a media status information acquisition command to the query information acquisition API 204 in step S19.

  In step S <b> 20, the query information acquisition API 204 executes media FS status information acquisition processing for the file system unit 203. In step 21, the QUERY information acquisition API 204 executes an App Format status information acquisition process for the App Format unit 202.

  At this time, in step S22, the App Format unit 202 and the File System unit 203 perform recording entry state information update and content reproduction IDX state information update.

  That is, the information acquired in the processes of steps S20 and S21 is media state information, and the NFC FS information 171 and the NFC application information 172 stored in the NFC information storage unit 33 are updated contents. Used to generate media status information. Therefore, in step S23, the QUERY information acquisition API 204 transfers the media status information to the user I / F control unit 111 and notifies a media status information acquisition completion response.

  In step S <b> 24, the user I / F control unit 111 issues an NFC status information write command to the NFC information read / write control unit 31. At this time, the media state information is also transferred from the user I / F control unit 111 to the NFC information read / write control unit 31.

  In step S <b> 25, the NFC information read / write control unit 31 generates NFC status information based on the media status information and writes to the NFC information storage unit 33 by proximity communication. That is, this NFC status information is update information of the NFC FS information 171 and the NFC application information 172 in FIG.

  In step S <b> 26, the NFC information read / write control unit 31 sends an NFC status information write completion response to the user I / F control unit 111.

  In a case other than when the moving image shooting in the example of FIG. 13 is completed, for example, when the recording medium 2 with the NFC function is mounted on the video recording / reproducing apparatus 1 with the NFC function, the NFC information storage unit 33 and the actual memory drive unit 34 As a response to the case where there is a mismatch in the usage state, the video recording / playback apparatus 1 with an NFC function checks the mismatch, and if there is a mismatch, reads the contents of the NFC information storage unit 33 in order to restore the match. It can be rewritten and updated. A flowchart for explaining an example of such a series of processing is shown in FIG.

  Note that the user I / F control unit 111 in FIG. 13 and subsequent figures means the User I / F control unit 111 in FIG.

  In step S <b> 41, the user I / F control unit 111 provides a mount recognition command to the recognition management API 205.

  In step S <b> 42, the recognition management API 205 executes file system recognition processing for the file system unit 203. Then, in step S43, the File System unit 203 executes a media management information reading process for the recording medium 2 with the NFC function. At this time, the volume information of the media management information of the recording medium 2 with the NFC function is transferred from the File System unit 203 to the recognition management API 205.

  In step S44, the recognition management API 205 executes App Format recognition processing for the App Format unit 202. Then, in step S45, the App Format unit 202 performs recording entry information update and content reproduction IDX information update. That is, the App Format unit 202 makes an inquiry to the File System unit 203, obtains the information of the INFO management file, sets the information update of the recording entry management unit (not shown), and updates the information of the content reproduction index management unit (not shown) Set and return the application format status information to the recognition management API 205. In step S46, the recognition management API 205 notifies the user I / F control unit 111 of a mount recognition completion response.

  In step S <b> 47, the user I / F control unit 111 issues a media state information acquisition command to the QUERY information acquisition API 204.

  In step S <b> 48, the query information acquisition API 204 executes media FS status information acquisition processing for the file system unit 203. In step 49, the QUERY information acquisition API 204 executes App Format status information acquisition processing for the App Format unit 202.

  At that time, in step S 50, the App Format unit 202 and the File System unit 203 perform recording entry state information acquisition and content reproduction IDX state information acquisition, and also provide them to the QUERY information acquisition API 204.

  In this way, when the media status information and the like are acquired in the processes of steps S48 to S50, in step S51, the QUERY information acquisition API 204 transfers the media status information and the like to the user I / F control unit 111, and also determines the media status. Notify the information acquisition completion response.

  In step S <b> 52, the user I / F control unit 111 issues an NFC status information read command to the NFC information read / write control unit 31.

  In step S <b> 53, the NFC information read / write control unit 31 reads consistency information into the NFC information storage unit 33 of the recording medium 2 with the NFC function and obtains NFC read state information by proximity communication.

  In step S <b> 54, the NFC information read / write control unit 31 sends an NFC status information read acquisition completion response to the user I / F control unit 111. At that time, both the NFC reading state information and the matching information are transferred from the NFC information read / write control unit 31 to the user I / F control unit 111.

  In step S55, the user I / F control unit 111 determines the consistency between the information acquired in the process of step S51 and the information acquired in the process of step S54, that is, the consistency mismatch determination process of the NFC state information. Execute.

  If it is determined that the processing result in step S55 is consistent, the series of processes in FIG. 16 is terminated, and the mounting is also completed.

  On the other hand, in the case where it is determined that the processing result in step S55 is inconsistent, that is, in the case of inconsistency determination, in step S61, the user I / F control unit 111 determines to the NFC information read / write control unit 31. Issue an NFC state matching information update write command.

  In step S62, the NFC information read / write control unit 31 performs NFC state matching information generation and writing to the NFC information storage unit 33 by proximity communication.

  In step S <b> 63, the NFC information read / write control unit 31 sends an NFC state matching information update writing acquisition completion response to the user I / F control unit 111.

  Thereby, the process of FIG. 16 is completed.

  Further, when the format of the memory drive unit 34 of the recording medium 2 with the NFC function is initialized, the contents of the NFC information storage unit 33 must be initialized at the same time. Such initialization processing can also be executed by the video recording / reproducing apparatus 1 with an NFC function. A flowchart for explaining an example of such a series of processing is shown in FIG.

  In step S <b> 81, the user I / F control unit 111 provides an application format initialization command to the recognition management API 205.

  In step S <b> 82, the recognition management API 205 executes App Format non-recognition (amount) processing for the App Format unit 202. The App Format unit 202 performs the corresponding processing with the File System unit 203 and the like, and responds to the recognition management API 205 with the processing success.

  Then, in step S83, the recognition management API 205 executes file system non-recognition (amount) processing for the file system unit 203. The File System unit 203 performs a corresponding process and returns a response to the recognition management API 205 indicating the success of the process.

  In step S84, the recognition management API 205 executes a File System initialization process for the File System unit 203. The file system unit 203 performs the corresponding process on the recording medium 2 with the NFC function, and returns a success of the process to the recognition management API 205.

  In step S85, the recognition management API 205 executes App Format initialization processing for the App Format unit 202. The App Format unit 202 performs corresponding processing on the File System unit 203 and the recording medium 2 with the NFC function, and returns a success of the processing to the recognition management API 205.

  In step S86, the App Format unit 202 and the File System unit 203 perform content reproduction IDX information initialization and recording entry information initialization.

  When recognizing the end of the processes in steps S82 to S86, the recognition management API 205 notifies the user I / F control unit 111 of a format initialization completion response in step S87.

  In step S <b> 88, the user I / F control unit 111 issues a media status information acquisition command to the QUERY information acquisition API 204.

  In step S 89, the QUERY information acquisition API 204 executes media FS status information acquisition processing for the File System unit 203. In step 90, the QUERY information acquisition API 204 executes App Format status information acquisition processing for the App Format unit 202.

  At that time, in step S 91, the App Format unit 202 and the File System unit 203 perform recording entry state information acquisition and content reproduction IDX state information acquisition, and also provide them to the QUERY information acquisition API 204.

  In this way, the media status information and the like are acquired by the processing of steps S89 to S91. Here, in the acquired information, the initial value of the format processing result in a state where the used file system and the used application format are determined is obtained. Therefore, in step S92, the QUERY information acquisition API 204 transfers the media status information and the like to the user I / F control unit 111 and notifies a media status information acquisition completion response.

  In step S <b> 93, the user I / F control unit 111 issues an NFC initialization state information update write instruction to the NFC information read / write control unit 31.

  In step S94, the NFC information read / write control unit 31 performs NFC initialization state information generation and writing to the NFC information storage unit 33 by proximity communication.

  In step S <b> 95, the NFC information read / write control unit 31 sends an NFC initialization state information update writing acquisition completion response to the user I / F control unit 111.

  Thereafter, the processing of steps S96 to S99 is executed in order to confirm whether or not the writing is successful. However, the processes of steps S96 to S99 are basically the same as the processes of steps S52 to S55 of FIG. 16 described above, and thus the description thereof is omitted here. In the case of determination that the processing result in step S99 is inconsistent, that is, in the case of inconsistency determination, the same processing as in steps S61 to S63 in FIG. 16 is executed, although not shown in FIG. It will be.

  As described above, with reference to FIG. 13 to FIG. 17, some examples of the process involving the near field communication performed between the above-described video recording / reproducing apparatus 1 with NFC function and the recording medium 2 with NFC function have been described.

  FIG. 18 is a diagram illustrating examples of various file configuration formats of application formats in the recording medium 2 with the NFC function.

  Which of the various application formats described above is written in each folder is determined by reading the basic information by the proximity communication described above, but is basically accessed from the root directory.

  In the example of FIG. 18, “root” is the root directory. Under the root directory, there is a moving image directory (folder) that is recognized by a fixed name unique to the application format. In the example of FIG. 18, it is a “fixed name moving image folder”. Further, there is a still image directory recognized by a fixed name unique to the application format. In the example of FIG. 18, it is a “fixed name still image folder”.

  In the example of FIG. 18, a “management information file”, “moving image data file”, “MPEG still image etc.” data file, “after-recording audio” data file, “management information” A “management information backup” that is a backup file of “file” is provided.

  Therefore, the video recording / playback apparatus 1 with the NFC function finds the “fixed name movie folder”, accesses the management file therefrom, and plays the content list information included in the “management information file” in the “fixed name movie folder”. It is possible to execute processing such as accessing and reproducing “moving image data file” from data or the like.

  In the example of FIG. 18, files such as “JPEG still images” are provided under the “fixed name still image folder”.

  As described above, the video recording / reproducing system of FIG. 1 has been described as the information processing system to which the present invention is applied. However, the present invention is not limited to the example of FIG. 1 and can take various embodiments.

  Specifically, for example, the system shown in FIG. 19, that is, a system including the device with NFC function 301 that can use a so-called game application format and the recording medium with NFC function 21 is also applied to the present invention. 1 is an embodiment of an information processing system.

  When the antenna 21 of the recording medium 2 with the NFC function is brought close to the antenna 302 for reading the NFC function, the device with the NFC function 301 also reads the basic medium usage information written on the recording medium 2 with the NFC function. Then, the NFC function-equipped device 301 calculates the used capacity of the recording medium 2 with the NFC function itself or an amount based on the used capacity based on the basic use information of the medium and the function and mode setting of the own firmware. The calculation result can be displayed on the display panel 303.

  At this time, for example, when the recording medium 2 with the NFC function is used for storing so-called game save data, the remaining number of the save data of the predetermined game corresponding to the predetermined application format can be stored. It can also be adopted as an amount based on the capacity used.

  In addition, in place of the NFC function-equipped video recording / playback apparatus 1 in FIG. 1 and the like and the NFC function-added apparatus 301 in FIG. 19, a PDA (Personal Digital Assistant) (not shown), a PC (Personal Computer) in FIG. It is also possible to employ a device capable of attaching an NFC function such as a telephone, a wristwatch, and a pen.

  By the way, the series of processes described above can be executed by hardware or can be executed by software. When a series of processing is executed by software, a program constituting the software executes various functions by installing a computer incorporated in dedicated hardware or various programs. For example, it is installed from a program recording medium in a general-purpose personal computer or the like.

  FIG. 20 is a block diagram showing an example of the configuration of a personal computer that executes the above-described series of processing by a program. That is, as described above, FIG. 20 is an information processing apparatus to which the present invention is applied, and is an example different from the NFC function-equipped video recording / reproducing apparatus 1 of FIG. Is shown.

  In FIG. 20, a CPU (Central Processing Unit) 401 executes various processes according to a program stored in a ROM (Read Only Memory) 402 or a storage unit 408. A RAM (Random Access Memory) 403 appropriately stores programs executed by the CPU 401 and data. These CPU 401, ROM 402, and RAM 403 are connected to each other via a bus 404.

  An input / output interface 405 is also connected to the CPU 401 via the bus 404. Connected to the input / output interface 405 are an input unit 406 made up of a keyboard, mouse, microphone, etc., and an output unit 407 made up of a display, a speaker, and the like. The CPU 401 executes various processes in response to commands input from the input unit 406. Then, the CPU 401 outputs the processing result to the output unit 407.

  The storage unit 408 connected to the input / output interface 405 includes, for example, a hard disk, and stores programs executed by the CPU 401 and various data. A communication unit 409 communicates with an external device via a network such as the Internet or a local area network.

  A program may be acquired via the communication unit 409 and stored in the storage unit 408.

  The NFC information read / write control unit 410 connected to the input / output interface 405 has the same function and configuration as the NFC information read / write control unit 31 of FIG. That is, the NFC information read / write control unit 410 can read / write information from / to the recording medium 2 with the NFC function by proximity communication.

  The drive 411 connected to the input / output interface 405 drives a removable medium 411 such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory, and drives the programs and data recorded therein. Get etc. The acquired program and data are transferred to and stored in the storage unit 408 as necessary.

  Further, when the recording medium 2 with the NFC function is loaded, the drive 411 drives them and acquires programs and data recorded therein. The acquired program and data are transferred to and stored in the storage unit 408 as necessary.

  As shown in FIG. 20, a program recording medium that stores a program that is installed in a computer and is ready to be executed by the computer includes a magnetic disk (including a flexible disk), an optical disk (CD-ROM (Compact Disc-Read). Removable media 412 which is a package media consisting of only memory), DVD (digital versatile disc), magneto-optical disc, or semiconductor memory, recording media 2 with NFC function, or program is stored temporarily or permanently. ROM 402, a hard disk constituting the storage unit 408, and the like. The program is stored in the program recording medium using a wired or wireless communication medium such as a local area network, the Internet, or digital satellite broadcasting via a communication unit 409 that is an interface such as a router or a modem as necessary. Done.

  In the present specification, the step of describing the program stored in the program recording medium is not limited to the processing performed in time series in the described order, but is not necessarily performed in time series. Or the process performed separately is also included.

  Further, in this specification, the system represents an entire apparatus or circuit constituted by a plurality of apparatuses or circuits.

1 is an external view showing an embodiment of a video recording / reproducing system to which the present invention is applied. FIG. 2 is a diagram showing an example in which the used capacity itself of the recording medium with the NFC function in FIG. 1 or an amount based on the used capacity is displayed on the display panel of the video recording / reproducing apparatus with the NFC function in FIG. FIG. 2 is a diagram showing an example in which the used capacity itself of the recording medium with the NFC function in FIG. 1 or an amount based on the used capacity is displayed on the display panel of the video recording / reproducing apparatus with the NFC function in FIG. It is a block diagram which shows the outline of the example of an internal structure of each apparatus of the video recording / reproducing system of FIG. FIG. 5 is a block diagram illustrating an example of a detailed configuration inside the recording medium with an NFC function in FIG. 4. FIG. 5 is a block diagram showing a detailed internal configuration example of the video recording / reproducing apparatus with an NFC function 1 in FIG. 4. It is a functional block diagram which shows the functional structural example of each apparatus of the video recording / reproducing system of FIG. It is a figure which shows the specific example of FS information for NFC of FIG. It is a figure which shows the specific example of the application information for NFC of FIG. It is a figure which shows the specific example of the information utilized in order to calculate various information, such as the used capacity itself of the recording medium with an NFC function of FIG. 1, or the quantity based on the used capacity. It is a figure which shows the specific example of the information utilized in order to calculate various information, such as the used capacity itself of the recording medium with an NFC function of FIG. 1, or the quantity based on the used capacity. It is a figure explaining an example of the calculation method of the quantity based on the usage capacity of the recording medium with an NFC function of FIG. It is a flowchart explaining the example of a relationship of the process which each function block of FIG. 7 performs. It is a functional block diagram which shows another example of a functional structure of each apparatus of the video recording / reproducing system of FIG. It is a flowchart explaining the example of a relationship of the process which each function block of FIG. 14 performs. It is a flowchart explaining the example of a relationship of the process which each function block of FIG. 14 performs. It is a flowchart explaining the example of a relationship of the process which each function block of FIG. 14 performs. FIG. 2 is a diagram illustrating examples of various file configuration formats of application formats in the recording medium with the NFC function in FIG. 1. It is an external view which shows embodiment different from FIG. 1 of the video recording / reproducing system to which this invention is applied. It is a block diagram which shows the structural example of the personal computer as an information processing apparatus with which this invention is applied.

Explanation of symbols

  1 Video recording and playback device with NFC function, 2 Recording media with NFC function, 11 Antenna, 21 Antenna, 41 NFC R / W system, 42 User I / F part, 43 Video data R / W part, 44 NFC system, 45 Cash , 46 NVRAM, 181 FS remaining amount calculation unit, 182 application remaining amount calculation unit, 183 remaining amount display control unit, 184 NFC information generation / acquisition unit, 185 panel display control unit, 301 device with NFC function, 401 CPU, 402 ROM, 408 storage unit, 410 NFC information read / write control unit, 412 removable media

Claims (8)

In an information processing device that controls the display of information about media,
Acquisition means for acquiring first information indicating a use state of the medium including a use capacity of the medium by proximity communication with the medium;
The use according to the characteristics of the predetermined application format using the first information acquired by the acquisition means and the second information regarding processing using the predetermined application format by the information processing apparatus itself A computing means for computing an amount based on the capacity;
An information processing apparatus comprising: display control means for controlling display of an amount based on the used capacity calculated by the calculation means. The computing means further generates permission information as to whether or not the medium is usable for processing of the predetermined application format based on the first information and the second information,
The information processing apparatus according to claim 1, wherein the display control unit further controls display of the availability information generated by the calculation unit. The predetermined application format is an application format for moving image recording,
The information according to claim 1, wherein the amount based on the usage amount calculated by the calculation means is a recordable time when the moving image is recorded in all of the remaining amount of the medium according to the predetermined application format. Processing equipment. The predetermined application format is an application format for moving image playback,
The amount based on the used amount calculated by the calculating means is the medium according to the predetermined application format when all of the used amount is consumed for recording the moving image according to the predetermined application format. The information processing apparatus according to claim 3, which is a reproduction time when all of the moving images are reproduced. The predetermined application format is an application format for recording a still image,
4. The information according to claim 3, wherein the amount based on the usage amount calculated by the calculating means is a recordable number when the still image is recorded in all of the remaining amount of the medium according to the predetermined application format. Processing equipment. The predetermined application format is an application format for reproducing a still image,
The amount based on the usage amount calculated by the calculation means is recorded on the medium when all of the usage amount is consumed for recording the still image according to the predetermined application format. The information processing apparatus according to claim 3, wherein the number of still images is the number of still images. In an information processing method of an information processing apparatus that controls display of information about media,
Acquiring first information indicating a use state of the medium including a use capacity of the medium by proximity communication with the medium;
The amount based on the used capacity according to the characteristics of the predetermined application format using the acquired first information and the second information related to the processing using the predetermined application format by the information processing apparatus itself And
An information processing method including a step of controlling display of an amount based on the calculated used capacity. A program executed by a computer that controls a display device that displays information about media,
Controlling the information indicating the usage status of the medium including the usage capacity of the media to be acquired by the display device by proximity communication between the display device and the media;
Using the first information acquired by the display device and the second information related to processing using the predetermined application format by the display device, the used capacity according to the characteristics of the predetermined application format. Calculate the amount based on
A program including a step of controlling the display device to display an amount based on the calculated used capacity.

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