JP2000260161A - Recording and reproducing device and medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the recording and reproducing device which can rewrite a medium number on the top surface of a medium by automatically giving a medium number to a loaded medium and visually writing the number given to the medium on the rewrite surface of the medium. SOLUTION: A control part 1003 automatically gives a medium number according to a medium numbering part stored in a RAM 1005 and writes the medium number to a recording medium by accessing an FD by an FDD control part 1007 through an I/O control part 1006. At this time, the medium number (that is automatically given by the medium numbering part) recorded on the floppy disk(FD) and directory information are written to a medium number part and a directory information part respectively. Through the processing of this rewrite surface process part 1008, they are written to the medium number part and directory information part on the FD each time the recording contents of the FD are updated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a recording / reproducing apparatus and a medium which enable a user to easily manage a medium.

[0002]

2. Description of the Related Art Conventionally, a magnetic tape cassette on which video and audio or the like are recorded by a VTR or an FD on which information is recorded is displayed on the display of the recorded contents (for example, a TV program title, a movie title, a document title, etc.). ) Was handwritten on a paper index label, and the paper index label was attached and managed. Japanese Patent Application Laid-Open No. Hei 6-162251 has an optical reading means for printing or handwriting a content display such as a song title or a program title.
D is read from the jacket of the D, the back of the CD, etc., and recorded. Also, the display of the recorded contents is printed on a paper index label so that handwriting is not required, and the paper index label is used as a medium. Was to be stuck on.

[0003] In this specification, a recording medium and an entirety of a protective jacket containing the recording medium, such as a magnetic cassette tape or a floppy disk (FD), are simply referred to as a medium or a magnetic tape medium. , F
Called D medium.

In Japanese Patent Application Laid-Open No. 5-334860, in the description of paragraph No. 64, regarding the medium number assigned to the medium, "this cassette ID is, for example, an eight-digit number (or code), When a signal is recorded, it is always recorded in the subcode area.
When recording on an unrecorded cassette tape, the cassette ID is first input using a ten-key (not shown) on the operation panel 3 of the VTR. The cassette ID cannot be changed once recorded. In the present invention, there is no function or mechanism for automatically numbering the medium number. In Japanese Patent Application Laid-Open No. Hei 6-52661, the tape number is managed on the VTR side, but the tape does not have a tape number, and the tape currently being applied to the VTR recognizes which of a large number of tapes is a tape. This is for a reproducing apparatus that determines a tape number based on the recorded date and time data. Also, JP-A-6-3
Japanese Patent No. 09848 discloses that the tape number is managed on the VTR side, but the tape does not have a tape number. Since the tape number is displayed on the VTR side, the number is displayed. The work of writing the tape number on the tape case (by hand) and attaching the number sticker can be easily performed ”(paragraph number 40).

[0005]

It is troublesome for the user to specify any value for the tape number itself for each tape. You only need to specify it at a specific time, and usually you should automatically number it. The tape number of the new tape must be checked to see how many numbers have been used so far, and such an operation may be automatically performed by the device. In the technique disclosed in Japanese Patent Application Laid-Open No. Hei 6-309848, even if it is possible to find out on which tape the recording information to be recorded is recorded from the entire index, the tape number is handwritten on a label by himself. Met.
It's handwritten and it's good if you don't rewrite the contents, but if you rewrite the contents, you have to re-create the label according to it, which takes time. this is,
Video tape, DAT, CD-R, DVD
-The same can be said for the MD, the FD, etc. in the RAM. This applies to media incorporating magnetic recording, magneto-optical recording, and other recording media of various recording methods, and media incorporating recording media of various recording methods. Recording media (disks and tapes) Rather, it can be said about the medium itself containing the recording medium. For example, in the FD, there are a medium itself including a recording medium disk and a protective jacket protecting the disk, and a case (box) for carrying and storing the medium. This case (box) is usually a transparent plastic case. In the example of the FD, it is not a recording medium or a case (box), but a medium itself (FD including a protective jacket) including a recording medium.

[0006] Regarding a rewritable card, a technique disclosed in Japanese Patent Application Laid-Open No. 05-334501 or a method disclosed in Japanese Patent Application Laid-Open No.
The technology of Japanese Patent No. 537 is known. JP 05-33
The technology disclosed in Japanese Patent No. 4501 relates to “a card handling device for magnetic cards such as prepaid cards having a display function such as balance display”, and the technology described in Japanese Patent Application Laid-Open No. 06-28537 discloses “for example, printing once. Erase the information,
The present invention relates to a rewritable card printing method and a printing apparatus, on which new information can be printed, and in which the print erasure cycle can be performed many times. ".

[0007] Also, on July 11, 1998, the Kanagawa Shimbun newspaper stated that a "rewrite reception machine for hospitals using a" rewrite card ""
Technology is introduced. The content of the article is "Company T (company name abbreviation) has developed a" recommendation & reservation reception machine "for hospitals, 13
Start selling from day. The consultation can be accepted and reserved by touch panel operation, and the scheduled consultation time and the like can be confirmed on the spot by using a "rewrite card" in which character data is overwritten as needed for the consultation ticket. Also, for the hospital side,
There is an advantage that the efficiency of reception work can be improved. The rewritable card can repeatedly print and erase character data on the display unit on the front surface. The appointment ticket using this card can print the reservation / planning time of the consultation, the room number, etc., so that the consultation appointment ticket and the reception slip are not required, and the reception work is streamlined. The examinee can also check the information on the examination on the spot, and there is no need to wait for a long time in a waiting room or the like. Even today, there are many machines that make reservations or accept medical examinations, but information about the medical examination was only available on the machine screen or on printed paper. Since the rewrite card can display characters up to 10 characters x 16 lines, various information such as announcements of medical holidays and precautions for taking medicines is stated depending on the application. The company says that it can be overwritten as many times as necessary, so that only one card is issued per person, which will help cut costs. The company's rewrite card system was commercialized in 1994 and has been applied in various fields to date. Yokohama City University uses it in library lending tickets, erasing previous return dates and overwriting new dates when borrowing books.
At home electronics mass retailers and the like, a point card is used in which cumulative points are added each time a product is purchased. The company's main products are specially equipped vehicles such as trailers and train cars, but the Development Division and the Mechatronics Department are also focusing on the development of various systems. As described above, the rewriting card technology can display characters on a card, and can rewrite the characters many times, which is possible with the current technology. In addition, this rewrite card is designed so that thermal printing can be performed on a magnetic card, the card is a magnetic card, and the storage capacity is less than 100 bytes.
Some are compatible with IC cards, but their capacity is 800
It was about 0 bits.

An object of the present invention is to provide a recording / reproducing apparatus which can assign a medium number to a medium having a built-in recording medium and which can rewrite the medium number on the medium surface. Another object of the present invention is to provide a medium having a built-in recording medium capable of recording a large amount of video or information, such as a magnetic tape medium or an FD medium, to which a medium number can be assigned. A playback device is provided. Another object of the present invention is to provide a recording / reproducing apparatus capable of rewriting information on recording contents of a medium having a built-in recording medium capable of recording a large amount of video or information such as a magnetic tape medium or an FD medium on the surface of the medium. is there. Another object of the present invention is to record on a medium (for an index) information relating to each recorded content of a medium having a built-in recording medium capable of recording a plurality of large amounts of video or information, and to store information relating to the recorded content of the medium. An object of the present invention is to provide a recording / reproducing device whose surface can be rewritten. Another object of the present invention is to provide a recording / reproducing apparatus which enables rewriting when the amount of information relating to the recorded contents of a medium exceeds a rewritable range. It is another object of the present invention to provide a medium having a built-in recording medium capable of recording a large amount of video or information, in which a medium number can be visually rewritten on the surface of the medium.
It is another object of the present invention to provide a medium having a built-in recording medium capable of recording a large amount of video or information, in which information relating to the recording content of the medium can be visually rewritten on the surface of the medium.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a method for inserting and removing a medium having a built-in recording medium, and writing information on a recording medium in the inserted medium. And a recording / reproducing apparatus capable of reading, wherein a means for automatically numbering a medium number for the inserted medium and a means for visually writing the number assigned to the medium on a rewritable surface of the medium. I am preparing for it.

Also, a medium having a built-in recording medium capable of recording a large amount of video or information can be inserted and removed.
In a recording / reproducing apparatus capable of writing and reading information on and from a recording medium in the inserted medium, a means for automatically numbering a medium number for the inserted medium, Means are provided for visually writing the number on the rewritable surface of the medium.

Also, a medium having a built-in recording medium capable of recording a large amount of video or information can be inserted and removed.
In a recording / reproducing apparatus capable of writing and reading information on and from a recording medium in the inserted medium, a creating means for creating information on the recorded content of the medium, Is provided with means for visually writing on the rewrite surface.

Also, a medium having a built-in recording medium capable of recording a large amount of video or information can be inserted and removed.
In a recording / reproducing apparatus capable of writing and reading information to and from a recording medium inserted in the medium, means for creating information relating to recording contents of the plurality of media, and information relating to recording contents of the plurality of created media Means for storing the contents of the storage means on a recording medium of another medium, creating means for creating information relating to the storage contents of the other medium, and storage contents of the created storage means Means for visually writing information on the rewrite surface of the other medium.

When the creating means determines that the created information does not fit in the writable range of the rewrite surface, it creates information indicating that the information cannot be written to the rewrite surface. I have.

A medium having a built-in recording medium capable of recording a large amount of video or information, the medium having a rewritable surface on which the medium number of the medium can be visually written.

A medium having a built-in recording medium capable of recording a large amount of video or information, the medium having a rewritable surface on the surface of which the information relating to the recorded contents of the medium can be visually written.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. FIG. 11 is a block diagram showing a main configuration of the data processing system according to the embodiment of the present invention. In FIG. 11, reference numeral 1001 denotes an input unit;
Is a display unit, 1003 is a control unit, 10031 is a control unit 10
03 is a control unit 1003
1004 is a ROM, 100
5 is a RAM, 1006 is an I / O control unit, 1007 is an FD
A D control unit 1008 is a rewrite surface processing unit. FIG.
FIG. 3 is a diagram of an FD based on an embodiment of the present invention. 12, reference numeral 1009 denotes an FD, 10091 denotes a rewrite surface on the FD 1009, 100911 denotes a medium number portion on the rewrite surface on the FD 1009, and 100912 denotes an FD 1009
This is the directory information section on the upper rewrite surface. The medium number section and the directory information section are located at independent positions. As described above, the entirety of a recording medium and a protective jacket containing the recording medium, for example, a magnetic cassette tape or a floppy disk (FD)
Are simply referred to as a medium, a magnetic tape medium, or an FD medium in this specification.

The control unit 1003 detects an input from the input unit 1001, and according to the input, the RAM 1005, RO
The processing is performed by accessing M1004 or the like, and the processing result is displayed on the display unit 1002. When the FD 1009 is inserted, the control unit 1003 detects the insertion and the I / O control unit 10
Through F06, the FDD control unit 1007 accesses the FD 1009. Further, when the recording content of the FD 1009 is changed, the control unit 1003 controls the FD 1009 according to the rewrite surface content creation unit 10032 stored in the RAM 1005.
9, a display of the contents of the recording contents to be displayed on the rewriting surface based on the recording contents of the FD 1009, that is, directory information on the recording contents of the FD 1009, including the selection of the format, is created.
Then, write on the rewrite surface 10091 on the FD 1009. The control unit 1003 automatically numbers the medium numbers according to the medium number numbering unit 10031 stored in the RAM 1005, and assigns the medium number via the I / O control unit 1006.
The FDD control unit 1007 accesses the FD 1009,
Write to the recording medium. At this time, the medium number (medium number automatically numbered by the medium number numbering unit 10031) and directory information recorded in the FD 1009, the medium number is written in the medium number unit 100911, and the directory information is written in the directory information unit 100912. . Since a large amount of video or information is recorded on the FD, directory information is required. When the recording content of the FD 1009 is changed, each time the recording content of the FD 1009 is changed, the medium number unit 100911 on the FD 1009 and the FD 10
09 in the directory information section 100912.
The medium number is not changed except in special cases.

The rewrite surface 1009 of the FD 1009
The directory information is used here as the information to be written in No. 1 so that the recorded contents of the FD 1009 can be understood. However, when the directory information of that level is too large to fit in the rewrite surface 10091, the level of the directory information is set to one. What is necessary is just to write the directory information on the rewrite surface 10091 at a level that is not further subdivided. In this manner, even if the content of the FD is not inserted into the FDD, it is possible to determine whether or not the FD has desired information by looking at the content display printed on the rewritable surface of the FD. Also, because it has a rewrite surface, even when rewriting the contents of the FD, it is necessary to rewrite it like a paper label or bring another paper label like when writing with ink or magic. This eliminates the hassle of rewriting. In addition, it is troublesome for the user to specify any value for the medium number for each medium. The medium number of the new medium had to be checked by checking how many numbers were used so far, and that there was no overlap, but such a thing is not necessary in the present invention.

In addition, the medium number is written on the recording medium or rewritten on the rewritable surface of the medium, and the medium number and information (such as directory information) relating to the recorded contents of the recording medium are visually rewritten on the rewritable surface of the medium. Is not limited to FD only,
DAT, CD-R, DVD-RAM, MD
The same can be said of such a case. This is true for media of magnetic recording, magneto-optical recording, and other various recording methods. This is true for externally stored media. Note that the content display to be written on the rewrite surface is information on the medium number and the recorded content. In the above example, the directory information is used. However, the information related to the recorded contents is, for example, a list of recorded contents such as directory information, a title of software recorded on the recording medium, and a title recorded on the recording medium in FD. The version information of the software being used, or in the case of a video tape, a list of the recorded contents recorded in the video tape may be used.

Further, when the capacity of the recording medium becomes very large, there may be cases where it is not possible to write the directory information in detail to the point where all the directory information is written due to the capacity of the rewrite surface. Sometimes, you can write the directory up one level as described above. There is also a method of editing a part of each directory information or title with, for example, up to eight characters and writing the same. At this time, the editing may be performed so that the fact that not all of the data has been written is not included in the rewrite range of “capacity of recording medium ...” and is omitted. There are various methods for editing the display contents.

When the capacity of the recording medium is large, only the medium numbers and directory information of a plurality of mediums are stored in the apparatus, and the desired information is searched by using the medium. Is indicated on the device side, and the medium of the desired medium number is inserted into the device,
Desired information may be extracted. At this time, in order to search for the contents of the medium, the apparatus displays the medium number, and the medium has the medium number and the contents written on the rewritable surface, making it very easy to find the contents. Also, since the media is automatically numbered, the media number of the new media had to be checked to see how many numbers had been used so far, and to make sure that there was no overlap. What does not have to be the present invention. Also, the automatically assigned medium number can be visually rewritten on the rewriting surface, making it very easy to find the medium with the desired medium number. Further, by visually rewriting the recorded contents of the recording medium on the rewrite surface, it becomes very easy to confirm the recorded contents. The contents of the recording can be understood without having to insert the medium into the device each time, or a rough idea can be obtained. Alternatively, a backup medium containing the medium number and directory information may be created. If the backup medium is inserted into the device and the media number and directory information are loaded into the device when the device is replaced, the entire medium is read again by the device, and the media number and directory information are read. Need not be recreated. When the apparatus has the recorded content information of a plurality of media, the desired information can be searched for by searching for the medium of the medium number that is visually written in the apparatus. In addition, when the device is replaced, etc., by putting the backup data into the device, it is possible to easily have the recorded content information of all of the plurality of media, and to easily search for the desired information.

Hereinafter, a second embodiment of the present invention will be described with reference to FIGS.
Explanation will be made using 0. FIG. 1 is a block diagram showing a main circuit configuration of a VTR based on an embodiment of the present invention. In FIG. 1, 11 is a magnetic tape medium, and 9 and 10 are reels on which the magnetic tape medium 11 is wound. 29 is TV
An input terminal for a broadcast signal, 5 is a TV tuner that receives a TV broadcast signal from a TV broadcast signal input terminal 29, 30 is an input terminal for a video signal from an external device such as a video camera or another VTR, and 6 is a tuner. 5 and a switch circuit for switching and outputting a video signal from the input terminal 30,
1 is a channel selection in the tuner 5 and a switch circuit 6
Is a video signal input switching control circuit that controls switching of the video signal. Reference numeral 2 denotes a date / time signal generation circuit, 3 denotes a time code signal generation circuit, 4 denotes an information signal recording processing circuit, and an input signal from the video signal input switching control circuit 1 and a date from the date / time signal generation circuit 2 Time information and a time code signal from the time code signal generation circuit 3 are input,
These information signals are output according to a predetermined recording format. Reference numeral 7 denotes an information signal multiplexing circuit which multiplexes the information signal from the information signal recording processing circuit 4 during the vertical blanking of the video signal from the switch circuit 6 (a period during which no image signal including a vertical synchronization signal exists).

Reference numeral 8 denotes a video signal recording / reproducing processing device, which converts the video signal from the information signal multiplexing circuit 7 into a recordable signal at the time of recording and converts the reproduced signal into an inverse frequency at the time of reproduction. . Reference numerals 12 and 13 denote magnetic heads, which convert recording electric signals from the video signal recording / reproducing processing circuit 8 into magnetic signals and record them on the magnetic tape medium 11, and convert reproduced magnetic signals from the magnetic tape medium 11 into electric signals. The video signal is converted and output to the video signal recording / playback processing device 8. 1
Reference numeral 5 denotes a switch circuit, and a video signal recording / reproduction processing circuit 8
And the reproduced video signal output from the circuit 8 is switched and output. 33 is a blue-back generating circuit that generates a signal for making the entire screen solid blue.
Reference numeral 32 denotes a switch circuit, which switches and outputs the output from the switch circuit 15 and the output from the blue-back generating circuit 33. Reference numeral 19 denotes a character signal generation circuit, and reference numeral 18 denotes a character signal addition circuit, which adds the character signal from the character signal generation circuit 19 to the video signal from the switch circuit 32. An output terminal 31 outputs a video signal from the character signal addition circuit 19.

Reference numeral 16 denotes a video signal presence / absence detection circuit which receives an output signal from the switch 15 and detects presence / absence of a video signal. Reference numeral 17 denotes an information signal reproduction processing circuit which similarly receives an output signal from the switch circuit 15 and
And outputs the information signal multiplexed with the video signal from. A control signal recording processing circuit 22 generates a control signal for controlling the running of the magnetic tape medium 11, and adds a signal such as a cue signal by changing the pulse width of the control signal. A control head 14 records and reproduces control signals. Reference numeral 23 denotes a control signal reproduction processing circuit that reads the reproduced control signal and determines the added information such as a cue signal. Reference numeral 21 denotes a switch circuit which outputs a recording control signal from the control signal recording processing circuit 22 to the control head 14 when recording a control signal, and outputs a control signal from the control head 14 when reproducing the control signal. Reproduction processing circuit 2
Output to 3.

Reference numeral 24 denotes a tape insertion detection circuit for detecting that the magnetic tape medium 11 has been inserted into the main VTR, 25 a reel rotation speed detection circuit for detecting the rotation speed of the reels 9 and 10, and 37 an erroneous erasure prevention mode. In the detection circuit, this VTR
Whether the magnetic tape 11 inserted into the magnetic tape 11 is in the erroneous erasure prevention mode is detected by cutting a nail on a magnetic tape case (not shown) or opening and closing a sliding lid. Reference numeral 27 denotes the user of this VTR
Is an operation unit for operating the operation of. This operation unit 27
There are a recording key, a reproduction key, a stop key, a tape eject key, a list display key, a fast forward key, a rewind key, a numerical key, a character key, and the like, which are used for VTR operation, character title input, and the like. Further, there are an index tape creation key for backing up the index held in the VTR to the magnetic tape medium 11 and an index load key for loading the backup of the index held in the magnetic tape medium 11 to the VTR. Reference numeral 28 denotes a display unit for notifying a user of an operation state of the VTR and the like. 2
6 is a system control circuit for performing overall control,
The system control circuit 26 controls the operation of each section of the VTR and has a clock and calendar function for generating current time and date and time information. Reference numeral 20 denotes a memory, which can read and write various information data under the control of the system control circuit 26. Note that the memory 20 is a nonvolatile memory. Reference numeral 38 denotes a rewrite processing unit which performs processing for recording a tape number, a directory of recorded contents recorded on a magnetic tape, and the like on the rewrite surface 112 of the magnetic tape medium 11. Since a large amount of video or information is recorded on a magnetic tape medium, directory information is required.

In the present invention, the generated time code is reset at the beginning of the tape, and takes values representing hours, minutes, seconds, and frame numbers corresponding to the running time of the tape. As a technique for multiplexing an information signal during a vertical blanking period of a video signal, for example, a commercial VT
R time code (VITC: Vertical Interva
l Time Code), teletext, or chapter information on laser discs, etc., are already generally known, and detailed description thereof will be omitted here. In addition, VISS (VHS Inde
x Search System) is a technique of rewinding or fast-forwarding a tape while counting the number of cue signals recorded on the tape, and playing back the tape when a desired count number is reached.

An outline of a recording format on the magnetic tape medium 11 will be described. Magnetic tape medium 11
In the format recorded in the PCM audio recording area,
It consists of a subcode recording area, a video signal and an FM signal recording area. In order to record information such as date and time, the information is coded, and after adding an error detection code and a synchronization signal, the information is modulated by a certain modulation method and recorded in a subcode recording area. The details of such error detection and modulation methods are described in many documents such as standards, and will not be described here. Since the subcode recording area is independent of the PCM audio recording area and the video signal and FM signal recording areas, post-recording (additional recording or rewriting of subcodes, etc.) can be performed separately from video and audio.

Here, the state of the tape shown in FIG. 2 will be described. FIG. 2 shows the state of the tape.
In addition. -Indicates that there is no tape number, for example, and O indicates that there is tape information, for example. a is an unused tape without a tape number, no subcode, and no recorded data. b
Is a self-tape without a tape number and with other subcode information and recorded data, and is a magnetic tape recorded by a device having no management function of the VTR. “c” is a magnetic tape recorded by a device having no management function of the present VTR, which is a self-recorded tape having recorded data without a tape number or other subcode information. d is a tape of another person with no tape number, with other subcode information and with recorded data, a magnetic tape recorded by a device having no management function of this VTR, and a nail in the erroneous erasure prevention mode folded. ing. "e" is a tape of another person having recorded data without a tape number and without any other subcode information.
The tab of the erroneous erasure prevention mode is broken on a magnetic tape recorded by a device without the management function of the above. f is a self-recorded tape with tape number information (with subcode information) and recorded data, and is a recorded magnetic tape. g is a self-recorded tape with tape number information (with subcode information) and recorded data, and a tape that has been recorded halfway. For example, only 30 minutes of recording is performed on a two-hour tape, and the remaining one-half hour is an unused magnetic tape. “h” is a rental tape with recording data and tape data of another person with tape number information (with subcode information), and a VTR with a management function.
This is a magnetic tape that has been recorded by the user, with the nail in the erasure prevention mode folded. “i” is a tape of one's own having tape number information (with subcode information) and having recorded data recorded by another person, and is a magnetic tape recorded by a VTR having a management function. This is my tape which I gave my tape to a person and recorded it. j has tape number information (with subcode information)
This is another person's tape that has been recorded by another person with recorded data, and the tape is replaced with another tape, or the tape is paid or dubbed. Tape. k is
It is a tape of its own without recorded data with tape number information (with subcode information), and is a tape for index backup.

FIG. 3 is a flowchart of a process of the overall operation of the VTR according to the second embodiment. Here, first, the preliminary reproduction in step S305 in FIG. 3 will be described. FIG.
4 is a flowchart illustrating details of a preliminary reproduction process in step S305 in FIG.

In the following description, the whole (magnetic tape cassette) consisting of a magnetic tape portion and a protective jacket (protective case) containing the magnetic tape portion is called a medium or a magnetic tape medium.

When the preliminary reproduction process is started, first, the running for tape reproduction is started (step S401).
A mechanism diagram for running the tape is not shown in FIG. The signals reproduced by the magnetic heads 12 and 13 from the magnetic tape medium 11 are subjected to reproduction processing by a video signal recording / reproduction processing circuit 8, an information signal is extracted by an information signal reproduction processing circuit 17, and output to a system control circuit 26. Is done. In the processing of step S402,
The system control circuit 26 reads the reproduced information signal from the information signal reproduction processing circuit 17. At this time,
The system control circuit 26 controls the switch circuit 32 and outputs a blue-back signal for making the entire screen a single color blue from the blue-back generation circuit 33 to the output terminal 31 via the character signal addition circuit 18. Therefore, the video signal reproduced by the preliminary reproduction process is not output to the output terminal 31. This is because the purpose of the preparatory reproduction operation is to read an information signal, so that it is not necessary to output a video signal, and an unnecessary video is shown to a user so as not to be confused.

When the time code is multiplexed on the reproduction signal as a result of reading the information signal, the system control circuit 26 presets the read time code value in the time code signal generation circuit 3 (step S40).
3, S404). When the time code is not multiplexed in the reproduction signal, the system control circuit 26 calculates the tape running time from the reel rotation speed, which is the output information of the reel rotation speed detection circuit 25, and converts this value into a time code to convert the time code into a time code. Preset in the signal generation circuit 3 (steps S403 and S405). At this time, if the calculated value from the reel rotation speed is less accurate than the time code value,
Just preset hours, minutes and seconds. After performing the preliminary reproduction for a predetermined period of time (for example, 1 second or 2 seconds), the system control circuit 26 automatically terminates the tape running (step S40).
6, S407).

With the above operation, the information on the current tape position can be read, and the time code signal generating circuit 3 is preset. For example, a video signal and an information signal including a time code are already recorded on the inserted magnetic tape, and when a program is recorded subsequently to this tape, continuous recording is performed from the time code value preset in the preliminary reproduction. Since the time code value is generated and recorded, the continuity of the time code is maintained. Further, when recording is performed in a portion where no time code is recorded, a time code value corresponding to the tape running time is recorded, so that the time code value does not skip or overlap.

Next, the operation of this embodiment will be described with reference to the flowchart of FIG. FIG. 3 is a flowchart showing the entire operation of the present embodiment. The entire processing flow is controlled by the system control circuit 26. The description will be made in the following order. FIG. 10 summarizes the correspondence between the following explanation points (1) to (6) and the tape types a to k in FIG.

(1) First, the magnetic tape medium 1 in which no signal is recorded by the VTR of this embodiment.
The operation when recording to No. 1 will be described. In this description, the tape type a in FIG. 2 will be described. (2) Next, a procedure for recording a program on a tape partially recorded will be described. In this description, the tape type g in FIG. 2 will be described. (3) Next, a case where a recorded magnetic tape is reproduced will be described. In this description, the tape types f and g in FIG.
Will be described. (4) Next, a case will be described in which a tape recorded by a VTR having a similar function (a tape number can be recorded in a subcode recording area) is reproduced. In this description, the tape types h, i, and j in FIG. 2 will be described. (5) Next, a case will be described in which a magnetic tape recorded by another VTR having no management function of this VTR is reproduced by this VTR. In this description, the tape types b, c,
d and e will be described. (6) In addition, when the VTR fails or is replaced by a new one,
A case in which the data of “.” Has disappeared will be described. In this description, the tape type k in FIG. 2 will be described. This is V
An index tape creation function for backing up the index held in the TR on the magnetic tape medium 11 and a backup of the index held on the magnetic tape medium 11 in V
It is an explanation of an index loading function for loading a TR.

(1) First, an operation when recording is performed on the magnetic tape medium 11 in a state where no signal is recorded by the VTR of the present embodiment (the tape type is a) will be described. First, when the user instructs to turn on the power, the system control circuit 26 turns on the power of the present VTR (step S301). At the time of purchase of this VTR, since no data has been written in the memory 20, the user does not request the entire table of contents display processing (step S302). Therefore, the system control circuit 26 performs the entire table of contents display processing (step S303). ) Is not performed, and the process proceeds to step S304. Further, at first, the magnetic tape medium 11 is not inserted into the main VTR. However, when the user inserts the magnetic tape 11 medium into the main VTR, the tape insertion detecting circuit 24 operates.
Detects the insertion, whereby the system control circuit 26 determines whether or not an information signal has been detected as a result of the preliminary reproduction operation (step S305) (step S306). Step S
Proceed to 310. In step S310, the system control circuit 26 detects whether or not the inserted magnetic tape medium 11 is in the erroneous erasure prevention mode based on the output of the erroneous erasure prevention mode detection circuit 37. Here, the information signal and the video signal are not detected on the unused tape, and the tape is not in the erasure prevention mode. Therefore, the system control circuit 26 proceeds to step S311. When recording for the first time on a new tape, before recording,
The user instructs tape registration (step S311).
As a result, the system control circuit 26 proceeds with the process and assigns “11” as the tape number for the inserted magnetic tape medium 11 (step S31).
2). Here, it is assumed that the tape numbers 1 to 10 are not used as the numbers of the magnetic tape medium 11 from which the video data is taken, as the tape numbers for management. here,
The information of the tape number “11” is written on the rewrite surface 112 on the magnetic tape medium 11 by the rewrite processing unit 38 (step S313). Subsequently, the magnetic tape medium 1
Since 1 is unused, the user proceeds to step S31.
The process proceeds to step S320 without performing the table of contents creation process of No. 4.

Steps S320 to S329 are processes selectively performed according to a user's instruction. When the user gives an instruction to input a title, record, play, or create an index tape, or load an index using the operation unit 27, in steps S320, S322, S324, S326, and S328, respectively, The input of the instruction is detected, and the respective processes are performed in step S321, step S323, step S325, step S327, or step S329. In this embodiment, the user can input the title of the program to be recorded,
When the user instructs the title input from the operation unit 27, it is detected (step S320), and the title input by the operation unit 27 is temporarily stored in the system control circuit 26 (step S321). The genre of the program may be input similarly to the title of the program. System control circuit 2
If the title of the program held in the memory 6 is not recorded before the recording of the program, the title of the
To memorize. After the recording of the program, the program data is additionally stored in the corresponding program data stored in the memory 20. Thus, when the user does not have time to input a title before recording the program, the user can input the title after recording the program.

The user inputs a recording instruction to the operation unit 27.
, The system control circuit 26 detects this (step S322) and performs a recording process (step S323). This recording process will be described in detail with reference to FIG. FIG. 5 is a flowchart showing the details of the recording process in step S323. When the recording process is started, the tape number already assigned in step S312 in FIG.
In step S321, the title information already input, the date and time at the start of recording, the day of the week, the time code value, the type of input signal such as channel, and the recording mode such as standard or long are automatically recorded in the memory 20. (S5
01). Next, the time code counting by the time code signal generation circuit 3 is started at the same time as the tape running for recording is started. Further, the system control circuit 26 controls the control signal recording processing circuit 22, and records the cue signal on the tape by the control head 14 (step S502). During recording,
A video signal obtained by multiplexing the types of input signals such as channels and information signals such as time code and tape number is recorded on the magnetic tape 11 (step S503). When the end of the recording is instructed (step S504), the system control circuit 26 stops the tape running and stops the time code counting operation (step S505).
Subsequently, the time code value at the end of the recording, the date and time, the day of the week, the time from the recording start time to the end calculated from these numerical values, and the remaining tape time are stored in the memory 20 (step S506). Information such as a start date and time, a day of the week, a channel, a title, a recording time, etc.
(Step S507), and the recording process ends.

In FIG. 3, when removing the tape from the VTR, the user instructs the operation section 27 to remove the magnetic tape medium 11 in step S330. Upon receiving this instruction, the system control circuit 26 removes the magnetic tape medium 11 and displays the tape number on the display unit 28.
Or the character signal generating circuit 19 is controlled, and the character adding circuit 18 superimposes the tape number on the video signal output. Also, the rewrite processing unit 3
In step 8, the tape is written on the rewrite surface of the magnetic tape medium 11, and the user can visually recognize the tape number of the tape (step S331). Thereafter, when the user gives an instruction to turn off the power from the operation unit 27 (step S332), the system control circuit 26 turns off the power of the VTR and ends all the processes.

(2) Next, a procedure for recording a program on a partially recorded tape will be described (the tape type is g). In step 304 of FIG. 3, the fact that the user has inserted the magnetic tape medium 11 indicates that the tape insertion detection circuit 2
4, the system control circuit 26 receives the detection, and the system control circuit 26 performs the above-described preliminary reproduction processing (step S3).
05). As a result, when an information signal is detected (step S306), the system control circuit 26
It is determined whether there is a tape number (step S30).
7) If there is a tape number, the process proceeds to step S308; otherwise, the process proceeds to step S310. Since the tape recorded halfway has a tape number, step S3
At 07, the system control circuit 26 determines whether or not the video signal is detected by the video signal presence / absence detection circuit 16 (Step S308). If a video signal is detected, the information signal reproduced by the information signal reproduction processing circuit 17 is compared with the information signal stored in the memory 20 to check whether there is matching data (step S309). ).

The memory 20 has a program tape number recorded in the past in this VTR, a date and time at the start of recording, a time code,
Since the date and time at the end of recording and the time code, title, channel, recording mode, and the like are stored, these are stored together with the tape number, date and time, and time code of the signal processing being reproduced, which is output from the information signal reproduction processing circuit 17. Is checked to see if there is any corresponding program data (step S309). It should be noted that, at the time of the preliminary reproduction in step S305, the data is sent before the part recorded on the magnetic tape medium 11, or the steps 306 and 30 are performed.
When the information signal and the video signal are not detected in step 8, the magnetic tape medium 11 may automatically rewind the magnetic tape to the beginning and perform the preliminary reproduction again.

After the tape number is recognized in step S309, the system control circuit 26 proceeds to step S309.
By the process of 317, the tape number is displayed, and the program data of the same tape number stored in the memory 20 is displayed as a table of contents as a list. This display method is performed by the display unit 28
May be displayed on the character signal generating circuit 19.
And the character signal adding circuit 18 may superimpose on the video signal output. Items displayed in the table of contents include the tape number, the title of each program, the recording start date and time, the end date and time, the time code value, the channel, the recording time, the recording mode, the remaining tape time of the non-recording part, etc. If the program is taken, if there is information such as the recording date and time, the day of the week, the recording start time, and the channel, it is possible to guess what the contents are. In the case of non-regular content, the content and the title information are important. After the table of contents is displayed, the user can designate a program to be watched in step S318 in FIG. 3 using the operation unit 27 while watching the table of contents (step S318). In response to this, the system control circuit 26 executes a cueing operation of a desired program (step S319).

Next, the cueing operation will be described in detail. An output signal from the control head 14 is supplied to a control signal reproducing process 23 via a switch circuit 21. A cue signal written at the beginning of each program included in the control signal is output to a system control circuit 26. You. System control circuit 2
Numeral 6 fast-forwards or rewinds the magnetic tape medium 11 while counting the cue signal. Then, the system control circuit 26 determines which program the current tape playback position is in the table of contents by comparing the preliminary reproduced information signal with the program data in the memory 20. While counting the cue signal up to the desired program, the magnetic tape 11 is fast-forwarded or rewound as necessary, and the next processing such as reproduction or recording is performed when the desired count number is reached. When the user designates a recording position and designates the start of recording, the system control circuit 26 determines from the designated position and the current position whether the magnetic tape 11 is to be fast-forwarded or rewinded, and the head of the designated position is determined. The delivery is performed (step S319).
Thereafter, the program is recorded in the same manner as the procedure described above (steps S322 and S323).

(3) Next, a case where a recorded magnetic tape is reproduced will be described (tape types are f and g). In the recorded magnetic tape, when the tape insertion detecting circuit 24 detects that the user has inserted the magnetic tape medium 11 in step 304 of FIG. 3, the system control circuit 26 receives the detection. Preliminary reproduction processing step S305 is performed. As a result, when an information signal is detected (step S306), the system control circuit 26 determines whether or not there is a tape number (step S307).
It is determined whether or not the video signal is detected by the video signal presence / absence detection circuit 16, and the video signal is detected (step S30).
8) The information signal reproduced by the information signal reproduction processing circuit 17 is compared with the information signal stored in the memory 20 to check whether or not there is matching data (step S309). After the tape number is recognized in step S309, the system control circuit 26 displays the tape number, and lists the program data of the same tape number stored in the memory 20 as a table of contents (step S3).
17). When the table of contents is displayed, the user can designate a desired program to be viewed by using the operation unit 27 while watching the table of contents. In response to this (step S318), the system control circuit 26 executes an operation of locating a desired program (step S319). After the cueing has been performed, if there is no designation of recording (step S322), the reproduction is automatically performed (steps S324 and S325).

In FIG. 3, when the user instructs reproduction from the operation unit 27, the system control circuit 26
Detects the instruction (step S324), and performs a reproducing operation (step S325). The details of the reproducing operation will be described in detail with reference to FIG. FIG. 6 shows that step S325.
5 is a flowchart showing details of the reproduction process of FIG. The reproduction process is started (step S601), and the user operates the operation unit 2
7, the information signal such as the title of the program being reproduced, the recording date and time, and the time code value can be reproduced and viewed on the monitor screen or the display unit 28 as needed (steps S603 and S604). In addition, the contents recorded on the magnetic tape can be displayed as a table of contents while reproducing (steps S604 and S605). Further, the steps C606, S607, and S608 allow the cueing operation to be performed continuously.

Further, a plurality of magnetic tape media 1
When the user instructs the operation unit 27 to display the entire table of contents in the state where the recording has been completed in the
Detects this (step S302), reads out the program data from the memory 20, and displays the table of contents of the recorded program for each tape. Therefore, the user does not need to insert a plurality of magnetic tapes one by one into the VTR and play them back.
The content of the program recorded on each tape can be known. Here, a desired program is searched from the place where the entire table of contents is displayed, and when it is found that the tape number in which the program is contained and the number of the recording therefrom are included in the VTR. If the magnetic tape medium 11 is the magnetic tape medium 11 of the tape number, the desired data can be reproduced by inputting the start program of the desired data (step S318).
When the magnetic tape medium 11 included in the VTR is not the magnetic tape medium 11 of the tape number, the tape number is known. Thus, the magnetic tape 11 of the desired magnetic tape number 11 is searched for from the peak of the magnetic tape 11 by using the tape number visually written by the VTR, and the program name appearing on the rewrite surface 112 is confirmed as the desired one. Can be put into this VTR. Rewrite surface 11
2 and the contents of the magnetic tape medium 11, the desired contents can be immediately reproduced and viewed. Alternatively, desired recordings can be made.

(4) Next, a case will be described in which a tape recorded by a VTR having a similar function (a tape number can be recorded in a subcode recording area) is reproduced (the tape type is h, i, j). At this time, since the information signal is recorded on the magnetic tape medium 11, but the corresponding program data is not stored in the memory 20, the user first creates the index data. In the preliminary reproduction steps S305, S307, and S308 after the insertion of the magnetic tape 11, the recorded information signal is reproduced, but the corresponding data is not stored in the memory 20, so that in step S309, the matching data is detected. Instead, the erroneous erasure prevention mode is checked (step S310). Since the mode is not the erroneous erasure prevention mode, the process proceeds to step S311. Here, when the user instructs to perform tape registration from the operation unit 27, the system control circuit 26 allocates a new tape number (step 312). The information of the assigned tape number is written by the rewrite processing unit 38 on the rewrite surface 112 on the magnetic tape medium 11 (step S313). Next, when the user gives an instruction to create a table of contents from the operation unit 27, the system control circuit 2
6 detects it (step S314) and performs a table of contents creation process (step S315). Further, the created table of contents is written on the rewrite surface 112 on the magnetic tape medium 11 by the rewrite processing unit 38 (step S316).

FIG. 7 is a flowchart showing details of the table of contents creation processing in step S315. The processing flow of FIG. 7 will be described. The system control circuit 26 first rewinds the magnetic tape 11 to the beginning (step S701), initializes a variable N indicating the serial number of the program to 1 (step 702), and starts reproducing the magnetic tape 11 (step 702). S703). Step S7
04 is a process for detecting the beginning of the program. Specifically, the control signal recorded by the control head 14 at the time of recording is reproduced by the head 14 and the control signal reproduction processing circuit 23, and a cue signal added to the control signal is detected. Instead of detecting the cue signal, a portion where the date and time of the information signal are discontinuous may be detected. System control circuit 2
6 detects the beginning of the program and records the tape number and the information signal of the beginning of the program in the memory 20 (S70).
5). At this time, if no time code is recorded,
The tape running time calculated from the reel rotation is recorded in the memory 20. If the user wants to input a program title while watching the reproduced video signal, the user gives an instruction to that effect from the operation unit 27 (S706). Then, the system control circuit 26 stores the title information input by the user from the operation unit 27 in the memory 20 (S707). If the user does not enter a title, this process is omitted. next,
The system control circuit 26 increments the program number N (S708), and starts searching for the next program (S1309). During this time, if the tape end is not detected (S710), the flow returns to S704 to repeat the above operation, and sequentially stores data in the memory 20 for each recorded program.

By the above operation, the data of the program recorded on the tape is sequentially stored in the memory 20. Also,
A table of contents can be created for a tape on which no time code is recorded. Also, in the process of step S1305, when the (N + 1) -th beginning part is detected, the information at the end of recording of the N-th program and the recording time are calculated, and
0 may be stored so that such information can be displayed when the table of contents is displayed. Note that the input of the title can be performed separately in steps S320 and S321 in FIG. 3, and thus the processing in steps S706 and S707 may be omitted.

(5) Next, a description will be given of a case where a magnetic tape recorded by another VTR having no management function of this VTR is reproduced by this VTR (the tape types are b, c, d,
e). When a magnetic tape recorded by another VTR having no management function of this VTR is reproduced by this VTR, an information signal is detected in preliminary reproduction (step S305) (step S30).
6) Not detected or information signal detected (step S306)
However, since the tape number is not detected (step S307), if the mode is the erasure prevention mode (step S310),
The reproduction process starts (step S325). If the mode is not the erroneous erasure prevention mode (step S310), step S310
Proceed to 311. Here, when the user instructs to register the tape number from the operation unit 27, the system control circuit 26 detects the instruction (step S31).
1) Assign a new tape number (step S31)
2). The information of the assigned tape number is transmitted to the rewrite surface 11 on the magnetic tape medium 11 by the rewrite processing unit 38.
2 is written (step S313). Next, when the user instructs the creation of a table of contents from the operation unit 27, the system control circuit 26 detects this (step S314),
A table of contents creation processing is performed (step S315). Further, the created table of contents is written on the rewrite surface 112 on the magnetic tape medium 11 by the rewrite processing unit 38 (step S3).
16).

(6) Next, a case where the data in the memory 20 is lost due to a failure of the VTR or replacement of the VTR will be described (the tape type is k). This is an explanation of an index tape creation function of backing up the index held in the VTR to the magnetic tape medium 11 and an index loading function of loading the index backup held in the magnetic tape medium 11 to the VTR. The index tape creation function for backing up the index held in the VTR to the magnetic tape medium 11 is performed in a format recorded on the magnetic tape medium 11 from a PCM audio recording area, a subcode recording area, a video signal and an FM signal recording area. Since the sub-code recording area is independent of the PCM audio recording area and the video signal and FM signal recording areas, post-recording (additional recording or rewriting of sub-code, etc.) can be performed separately from video and audio. Originally,
The information signal is sub-information of the content of the video signal when it is present. This is used as index information by giving meaning to the state in which the information signal is present even when there is no video or audio data, and the index information is backed up on the magnetic tape medium 11. There are two ways to create a backup tape for taking a backup: one in which an unused tape is designated as a backup tape, and the other is access to a tape in which backup data is already designated and designated as a backup tape.

First, a description will be given of a flow when an unused tape is designated as a backup tape. When an unused tape is designated as a backup tape, no information signal is detected in the preliminary reproduction (step S305), and the tape is not in the erroneous erasure prevention mode (step S310).
Here, when the operator instructs to create an index tape from the operation unit 27, the system control circuit 26 detects this and does not register the tape (step S311).
Neither title input (step S320) nor recording (step S322), but playback (step S324)
Instead, it determines the creation of an index tape (step S326) and performs an index tape creation process (step S327).

A description will be given of a flow when accessing a tape in which backup data has been specified and designated as a backup tape. For a tape that has already been designated as a backup tape and into which backup data has been inserted, the preliminary reproduction (step S305) detects an information signal and detects a tape number (step S30).
7), no video signal is detected (step S308).
Here, when the operator instructs to create an index tape from the operation unit 27, the system control circuit 26 detects this and does not register the tape (step S311).
Neither title input (step S320) nor recording (step S322), but playback (step S324)
Instead, it determines the creation of an index tape (step S326) and performs an index tape creation process (step S327).

Here, the backup index tape creation processing will be described in detail. FIG. 8 shows an index tape creation process (step 32) in the flowchart of FIG.
It is a flowchart which shows the detail of 7). Preliminary reproduction (step S305) detects whether or not there is a tape number, and determines whether or not there is a tape number (step S8).
01), if there is a tape number, the tape starts running (S803). If there is no tape number, a tape number for a backup tape is assigned (step S8).
02) Then, tape running starts (step S8).
03). Subsequently, the system control circuit 26 determines whether or not the index on the memory 20 has been completed (step S804), and if not, passes the index on the memory 20 from the information signal recording processing unit 4 to the information signal multiplexing circuit 7. Then, the video signal is recorded on the magnetic tape by the video signal recording / reproducing processing circuit 8 (step S805). Subsequently, it is determined whether the index has been completed (step S804). If the index is completed (step S804), the system control circuit 26 stops the tape running (step S806), and creates the rewrite surface contents (tape number and directory information) (step S80).
7), the magnetic tape medium 11
Visually write on the upper rewrite surface 112 (step S
808), and the process ends.

An index loading function for loading a backup of an index held on the magnetic tape medium 11 into a VTR will be described. For a tape designated as a backup tape and containing backup data, an information signal is detected and a tape number is detected in preliminary reproduction (step S305) (step S307).
No video signal is detected (step S308). Here, when the operator instructs to load the index tape from the operation unit 27, the system control circuit 26 detects this, and neither the tape registration (step S311) nor the title input (step S320), but the recording (step S322). ), Not playback (step S324), but index tape creation (step S326)
But not the index load (step S3
28), an index load process is performed (step S3)
29).

Here, the backup index loading process will be described in detail. FIG. 9 is a flowchart showing details of the backup index loading process in the flowchart of FIG. System control circuit 2
6 starts tape running (step 901), and determines whether or not the index has been completed (step S902);
If it is not the end, the subcode information of the magnetic tape is read, the index information is passed from the video signal recording / reproducing processing circuit 8 to the information signal reproducing process 17, and is stored in the memory 20 (step S903).
6 determines whether the index has been completed (step S
902). If the index has been completed (step S902), the system control circuit 26 stops the tape running (step S904), and ends the processing.

In the above description, the magnetic tape is used as a backup of the information relating to the medium number and the content. However, an FDD may be provided in the VTR, and the content of the memory 20 may be backed up in the FD. Also, multiple VTRs
When you want to have the same index, take the information on the medium number and contents on the backup medium as described above. At that time, the media number is set to 100 from VTR1 and the media number is set to 200 from VTR2.
By fusing the TR2 segment, VTR1 and VTR2
Can be backed up in common.

In the embodiment shown in FIG. 1, information signals such as date and time and time and program titles are generated in the VTR or input by a user and multiplexed with video signals. It is conceivable that a video signal multiplexed in advance with an information signal is input to the main VTR by the processing of the device (for example, the processing of a broadcasting station or the processing of a video signal generation source such as another VTR).

Information signal presence / absence detection circuit 34 (not shown) for detecting whether or not an information signal is multiplexed with an input signal.
And a switch circuit 35 for controlling whether to output an information signal from the information signal recording processing circuit 4 to the information signal multiplexing circuit 7 in accordance with the output result of the information signal presence / absence detection circuit 34.
(Not shown) and a title signal generation circuit 36 (not shown), the information signal is multiplexed in the VTR for the video signal input where the information signal is not multiplexed, Do not multiplex the information signal in this VTR for the video signal input where the signal is multiplexed in advance,
It is possible to record. When the input video signal is multiplexed by the output from the information signal presence / absence detection circuit 34, the system control circuit 26 controls the switch circuit 35 so that the information signal multiplexing circuit 7 Do not multiplex information such as channel, date, title, etc. However, the time code signal is multiplexed to a position different from the position where the information signal in the vertical blanking period is multiplexed (for example, a position separated by several scanning lines). Further, the title information is written on the rewrite surface 112 on the magnetic tape medium 11 by the rewrite processing unit 38.

When no information signal is detected,
An information signal generated in the VTR, such as a type, a channel, a date and time, or a title signal input by a user, is multiplexed with a video signal. The switch circuit 15 is controlled to output a signal to be recorded, and stores the information signal read by the information signal generation processing circuit 17, the time code value, the address information of the tape, the recording mode, and the like in the memory 20.
And create program data. Further, the title information is transferred to the magnetic tape medium 1 by the rewrite processing unit 38.
1 is written on the rewrite surface 112 above. Thus, no matter where the original information of the title comes from, the title information is written on the rewrite surface 112 on the magnetic tape 11 by the rewrite processing unit 38.

Therefore, according to this embodiment, if program information is multiplexed in advance by processing of a broadcasting station or the like, this is stored in the memory 20 as program data. Therefore, in this case, the user does not need to input a title or the like, the procedure for creating a table of contents can be simplified, and only when the program information is not multiplexed, the user only needs to input them. Therefore, by using these functions, the trouble of manually inputting the title information is eliminated, and when the recorded contents of the magnetic tape medium 11 are rewritten accordingly,
The recorded content information is automatically rewritten on the rewrite surface 112.

In the above embodiment, whether or not an input signal is multiplexed with an information signal is detected to control the multiplexing of the information signal in the VTR. An information signal may be read, and the data read at the time of recording on the tape may be multiplexed again. The upper terminal of the switch circuit 15
The input signal to the information signal multiplexing circuit 7 is connected, and the information signal reproduction processing circuit 17 reads the information signal already multiplexed on the video signal input to the present VTR. When recording on a magnetic tape, the information signal reproduction processing circuit 1
7 reads the date and time and the data of the program title into the date / time signal generation circuit 2 and the title signal generation circuit 36 (not shown), respectively, adds a time code thereto, and multiplexes the video signal. That is, the same information as the information previously multiplexed in the input signal is multiplexed in the date and time and the program title. At this time, if the information signal read from the input signal is once held and multiplexed in the next vertical blanking period, the information signal is recorded on the magnetic tape without changing the position of the scanning line on which the information signal is multiplexed. be able to. In addition, in this case, the aforementioned (5)
Thus, when a magnetic tape recorded by another VTR is reproduced by this VTR, information such as a tape number can be recorded on the magnetic tape. Therefore, by using these functions, the trouble of designating the tape number and manually inputting the title information is eliminated, and when the recorded contents of the magnetic tape medium 11 are rewritten accordingly, the rewrite surface 11
2 automatically rewrites the content information.

[0063]

According to the present invention, a medium number can be assigned to a medium containing a recording medium, and the assigned medium number can be rewritten on the medium surface. In addition, a medium number can be assigned to a medium including a recording medium capable of recording a large amount of video or information, such as a magnetic tape medium or an FD medium, and the assigned medium number can be rewritten on the medium surface. Further, it is possible to rewrite information on the recording content of a medium having a built-in recording medium capable of recording a large amount of video or information such as a magnetic tape medium or an FD medium on the surface of the medium. In addition, information on each recording content of a medium having a built-in recording medium capable of recording a large amount of video or information can be recorded on a medium (for index), and information on the recording content of the medium can be rewritten on the surface of the medium. it can. Further, when the amount of information relating to the recording content of the medium exceeds the rewritable range, the fact can be rewritten. It is possible to obtain a medium having a built-in recording medium capable of recording a large amount of video or information on which the medium number can be visually rewritten on the surface of the medium. It is possible to obtain a medium having a built-in recording medium capable of recording a large amount of video or information and capable of visually rewriting information on the recording content of the medium on the surface of the medium.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a main circuit configuration of a VTR according to a second embodiment of the present invention.

FIG. 2 is a diagram showing classification of tape states according to a second embodiment of the present invention.

FIG. 3 is a flowchart of a process of an overall operation of a VTR according to a second embodiment of the present invention.

FIG. 4 is a flowchart showing details of a process of a preliminary reproduction operation in the flowchart of FIG. 3;

FIG. 5 is a flowchart illustrating details of processing of a recording operation in the flowchart of FIG. 3;

FIG. 6 is a flowchart showing details of processing of the reproduction operation in the flowchart of FIG. 3;

FIG. 7 is a flowchart showing details of processing of a table of contents creation operation in the flowchart of FIG. 3;

FIG. 8 is a flowchart showing details of an index tape creation process in the flowchart of FIG. 3;

FIG. 9 is a flowchart showing details of an index load process in the flowchart of FIG. 3;

FIG. 10 is an explanatory diagram (1) based on the flowchart of FIG. 3;
FIG. 6 is a diagram summarizing the correspondence between (a) to (6) and tape types a to k.

FIG. 11 is a block diagram illustrating a main configuration of a data processing system according to an embodiment of the present invention.

FIG. 12 is a diagram of an FD applied to an embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 video signal input switching control circuit 2 date / time signal generation circuit 3 time code signal generation circuit 4 information signal recording processing circuit 5 TV tuner 6 changeover switch 7 information signal multiplexing circuit 8 video signal recording / reproduction processing circuit 9, 10 reel 11 Magnetic tape medium 12, 13 Magnetic head 14 Control head 15 Switch circuit 16 Video signal presence / absence detection circuit 17 Information signal reproduction processing circuit 18 Character signal addition circuit 19 Character signal generation circuit 20 Memory 21 Switch circuit 22 Control signal recording processing circuit 23 Control signal Reproduction processing circuit 24 Tape insertion detection circuit 25 Reel rotation speed detection circuit 26 System control circuit 27 Operation unit 28 Display unit 29 TV broadcast signal input terminal 30 Video signal input terminal 31 Video signal output terminal 32 Switch circuit 33 Blue Back generation circuit 34 Information signal presence / absence detection circuit 37 Erroneous erasure prevention mode detection circuit 38 Rewrite processing unit 111 Magnetic tape unit 112 Rewrite surface 1001 Input unit 1002 Display unit 1003 Control unit 1004 ROM 1005 RAM 1006 I / O control unit 1007 FDD control unit 1008 Rewrite surface control unit 10031 Medium number numbering unit 10032 Rewrite surface content creation unit 1009 FD 10091 Rewrite surface 100911 Medium number unit 100912 Directory information unit

Claims (7)

[Claims] 1. A recording / reproducing apparatus capable of inserting and removing a medium having a built-in recording medium and writing and reading information on and from a recording medium in the inserted medium. A recording / reproducing apparatus, comprising: means for automatically numbering a medium number by means of the medium; and means for visually writing the number assigned to the medium on a rewritable surface of the medium. 2. A recording / reproducing apparatus in which a medium containing a recording medium capable of recording a large amount of video or information can be inserted and removed, and information can be written to and read from a recording medium in the inserted medium. Recording / reproducing means for automatically numbering a medium number for the inserted medium, and means for visually writing the number assigned to the medium on a rewritable surface of the medium. apparatus. 3. A recording / reproducing apparatus capable of inserting and removing a medium containing a recording medium capable of recording a large amount of video or information and writing and reading information on and from a recording medium in the inserted medium. A recording / reproducing apparatus, comprising: a creation unit for creating information on the recording content of the medium; and a unit for visually writing the created information on the recording content of the medium on a rewritable surface of the medium. 4. A recording / reproducing apparatus capable of inserting and removing a medium containing a recording medium capable of recording a large amount of video or information and writing and reading information on and from a recording medium in the inserted medium. Means for creating information related to the recording contents of the plurality of media; storage means for storing the created information relating to the recording contents of the plurality of media; and recording the storage content of the storage means on a recording medium of another medium. Means, creating means for creating information on the storage content of the other medium, and means for visually writing the created information on the storage content of the storage means on a rewrite surface of the other medium. Recording and playback device. 5. The recording / reproducing apparatus according to claim 3, wherein the creation unit writes the information on the rewrite surface when the created information is determined to be out of the writable range of the rewrite surface. Recording / reproducing apparatus for creating information indicating that the information cannot be accommodated. 6. A medium having a built-in recording medium capable of recording a large amount of video or information, wherein the medium has a rewritable surface on which the medium number of the medium can be visually written. . 7. A medium having a built-in recording medium capable of recording a large amount of video or information, characterized in that the medium has a rewritable surface on the surface of which the information relating to the recorded contents of the medium can be visually written. Medium to do.