KR20040066451A - A/V program recording/reproducing apparatus having a function of partial deleteing and a method partial deleteing - Google Patents

Abstract

A video recording / playback apparatus having a partial deletion function and a partial deletion method thereof are disclosed. The video recording / reproducing apparatus deletes the partial region of the video file when a recording device in which a video file having image data encoded in a predetermined format is recorded, and a partial deletion command for deleting a partial region for the video file is input. And a main control section for controlling the recording device to record the moving picture file having the partial region deleted therein. Here, the partial deletion command has a command corresponding to the start position and the end position of the partial region. Therefore, the editing function can be improved by giving a partial deletion function to the video recording / reproducing apparatus.

Description

A / V program recording / reproducing apparatus having a function of partial deleteing and a method partial deleteing}

The present invention relates to an editing function of a video recording / playback apparatus, and more particularly, to a video recording / playback apparatus capable of partially deleting a recorded video file and an operation method thereof.

As a device for reproducing / recording video signals, video, set-top boxes, and DVD players are used. These devices can reproduce audio / video signals applied from external devices (e.g., broadcast signals, DVDs, CDs, etc.) or record them on a recording medium such as a video tape. Conventionally, when editing an image signal recorded on a recording medium such as a video tape, a video tape on which an audio / video signal is recorded and a video tape to be recorded after editing, that is, two tapes, are required. Accordingly, in order to edit the video signal, while watching the video tape on which the video signal is recorded, a desired scene is recorded and recorded on a separate video tape. Due to the characteristics of a video player driven by a motor, it is not easy to accurately edit a desired editing area, and video signals stored on video tapes are usually edited by a professional. Accordingly, there is a problem that editing of the recorded video signal is not easy.

SUMMARY OF THE INVENTION In order to solve the above problems, an object of the present invention is to provide a video recording / reproducing apparatus having a large recording apparatus and capable of partially deleting a moving image file recorded in the recording apparatus, and an operation method thereof.

1 is a view showing a display system to which an image recording / reproducing apparatus according to the present invention is applied;

FIG. 2A is a schematic block diagram of the video recording / reproducing apparatus 100 of FIG. 1;

FIG. 2B is a conceptual diagram of a video file recorded on the hard disk drive 151 of the video recording / reproducing apparatus of FIG. 1;

3 is a detailed view of a remote control device 200 of the video recording / reproducing apparatus of FIG. 1;

4 is a diagram illustrating a menu guide list initial screen of the video recording / reproducing apparatus of FIG. 1;

5 is a diagram illustrating a main menu and a sub menu according to a menu guide list initial screen of the video recording / reproducing apparatus of FIG. 1;

FIG. 6 is a view showing a first partial deletion mode window 620 of the video recording / reproducing apparatus of FIG. 1;

FIG. 7 illustrates a second partial deletion mode window 630 of the video recording / reproducing apparatus of FIG. 1;

FIG. 8 is a conceptual diagram illustrating a video file in which a partial deletion function is performed by the video recording / reproducing apparatus of FIG. 1; and

9 is a flowchart illustrating a partial deletion method of the video recording / reproducing apparatus of FIG. 1.

Explanation of symbols on the main parts of the drawings

110: input / output terminal 121: tuner

123: switching unit 125: input / output control unit

141: MPEG encoder 151: recording device (HDD)

157: data management unit 159: disc player

160: main control unit 161: central processing unit (CPU)

164: delete list generation unit 169: flash memory

167: SDRAM 171: light receiving unit

200: remote control device

In order to achieve the above object, an image recording / reproducing apparatus for recording and reproducing an audio / video signal received from the outside according to the present invention is a recording apparatus in which a moving image file having image data encoded in a predetermined format is recorded. Control the recording device to delete the partial area of the video file and to record the video file from which the partial area is deleted to the recording device when a partial deletion command for deleting the partial area for the video file is input. It has a main control unit. Here, the selection command selects a start position and an end position of the partial region.

And a memory for recording the moving picture file, wherein the main control unit deletes the partial area of the moving picture file recorded in the memory in response to the partial deleting command and sends the moving picture file from which the partial area is deleted to the recording apparatus. Control to record.

Preferably, the main controller has a delete list generator for generating a delete list corresponding to the partial region, and deletes the partial region of the video file corresponding to the deleted list.

On the other hand, in the partial deletion method of the editing function of the video recording / playback apparatus according to the present invention, the step of inputting a partial deletion command for deleting a partial region for a predetermined video file of the video files recorded on the recording device, the partial deletion And a deleting step of deleting the partial area of the moving picture file in response to a command, and a recording step of recording the moving picture file from which the partial area is deleted to the recording apparatus. Here, the partial deletion command has a selection command for selecting the start position and the end position of the partial region.

And a rewriting step of recording the video file in a memory after the step of inputting the partial delete command, and deleting the partial area of the video file recorded in the memory in response to the partial delete command. A recording step is performed to record the moving image file having the partial region deleted in the recording apparatus.

The method may further include a deletion list generation step of generating a deletion list corresponding to the partial area, wherein the deleting step deletes the partial area of the video file corresponding to the deletion list.

Therefore, the editing function can be improved by giving a partial deletion function to the video recording / reproducing apparatus.

Hereinafter, an image recording / reproducing apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view schematically showing a display system to which an image recording / reproducing apparatus according to the present invention is applied.

Referring to the figure, the video recording / reproducing apparatus 100 is connected to a television 300 as a display apparatus by means of a transmission cable 350.

The video recording / reproducing apparatus 100 processes a signal received from the remote control apparatus 200 which is an external input device and transmits display information to the television 300. Here, the external input device may be applied to other input devices such as a wired keyboard as well as the remote control device 200 that transmits a wireless signal such as infrared rays.

The video recording / reproducing apparatus 100 is constructed to receive at least one video signal provided from a plurality of video sources. Examples of image sources may include other media capable of transmitting signals, such as terrestrial television broadcasts, satellite broadcasts, cable leads, computer lines or modem lines. That is, video such as cable, satellite dish, local cable, digital broadcast source (DBS), general antenna, internet, other computer sources, camcorders, disk players, set-top boxes, etc. The present invention described below is applied to a video recording / reproducing apparatus constructed to receive at least one or more of the sources.

The video recording / reproducing apparatus 100 also includes a mass storage device for storing video signals and the like. As a mass storage device, a hard disk drive (HDD) which is a recording device can be used.

A block diagram according to an embodiment of such an image recording / reproducing apparatus is shown in FIG. Referring to FIG. 2A, the video recording / reproducing apparatus 100 includes an input / output terminal unit 110, a tuner 121, a switching unit 123, an input / output control unit 125, a video decoder 131, and an audio A. / D converter 133, video encoder 137, MPEG encoder 141, recording device (HDD) 151, data management unit 157, disc player 159, main controller 160, MPEG decoder ( 163, flash memory 169, light receiving unit 171, SDRAMs 143, 167, and the like.

Various external signals are inputted to the video recording / reproducing apparatus through the input / output terminal unit 110, and the audio / video signals processed from the video recording / reproducing apparatus are output. The input / output terminal unit 110 includes a super video input terminal (S_V IN) 111 and an output terminal (S_V OUT) 112, an RF input terminal (RF IN) 113, and an output terminal (RF OUT) 114. , Line video / audio input terminals (LINE V_IN, LINE A_IN) 115, output terminals (LINE V_OUT, LINE A_OUT) 116, digital audio signal output terminals (SPDIF) (Serial Parallel Digital interface) 117, etc. are provided. have.

The super video input terminal (S_V IN) 111 and output terminal (S_V OUT) 112 are luminance signals (Y) and color difference signals (Cr, Cb) separated from each other in digital form from a digital camcorder, a DVD player, a set-top box, or the like. ), And outputs the received super video signal to the display device after processing a predetermined signal.

The RF input terminal (RF IN) 113 and the output terminal (RF OUT) 114 are typically connected to an antenna to receive an over-the-air broadcast signal, and output the received over-the-air broadcast signal to a display device.

The line video / audio input terminals (LINE V_IN, LINE A_IN) 115 and output terminals (LINE V_OUT, LINE A_OUT) 116 are provided with luminance signals from camcorders, DVD players, set-top boxes, etc. that support the output of analog video signals. Y) and an analog signal mixed with color signals are received, and after a predetermined signal processing is performed in the video recording / reproducing apparatus 100, it is output to the display apparatus.

The digital audio output terminal 117 is a terminal for outputting the digital audio signal transmitted from the main controller 160 to the outside.

The tuner 121 adjusts a reception channel so that a broadcast signal of a channel requested by the input / output controller 125 controlled by the main controller 160 can be received through the RF input terminal 113.

The switching unit 123 selectively switches the signal input from the input / output terminal unit 110 and the output signal in response to the control of the input / output control unit 125.

The input / output controller 125 controls the input / output controller 125 with respect to the signal input from the input / output terminal unit 110 and the output signal under the control of the main controller 160.

The video decoder 131 is controlled by the main controller 160 to decode and output a video signal input through the super video input terminal 111 or the switching unit 123.

The audio A / D converter 133 converts an analog audio signal input through the switching unit 123 into a digital signal and outputs the digital signal to the MPEG encoder 141.

The audio D / A converter 135 converts the digital audio signal output from the MPEG decoder 163 of the main controller 160 into an analog audio signal and outputs the analog audio signal to the switching unit 123.

The video encoder 137 encodes a video signal output from the video decoder 131 or the MPEG decoder 163 and outputs the encoded video signal to the switching unit 123.

The MPEG encoder 141 is controlled by the main controller 160 to encode the audio signal output from the audio A / D converter 133 and the video signal output from the video decoder 131 by using a predetermined compression format. Preferably, the MPEG encoder 141 encodes by MPEG-2 compression.

The recording device 151 has a hard disk drive which is a general large capacity recording device, hereinafter referred to as a 'hard disk drive'. The hard disk drive 151 records various audio / video signals input from the input / output terminal unit 110 in the form of a file as shown in FIG. 2B. The video file 152 is encoded by the header 152a which is the location information of the video file 152, the user data 152b which is the file information of the video file 152, and the MPEG encoder 141. GOP (Group of Pictures) data 152c which is a video data group. Preferably, in order to manage the video file 152, the hard disk drive 151 includes a user D / B 153 provided corresponding to the header 152a and the user data 152b, and GOP data encoded in an MPEG method ( Recorded separately. The user D / B 153 includes a title of the program, a file name, a file reproduction length, and data on the year / month / date / hour / minute / second when the program is recorded.

The data management unit 157 manages the reproduction and recording of data recorded in the hard disk drive 151 and / or the disc player 159 under control of the main controller 160. That is, the data manager 157 manages the data to store the data recorded in the disc player 159 or the data encoded by the MPEG encoder 141 in the hard disk drive 151.

The disc player 159 is built in the video recording / playback apparatus and performs a recording / playback operation under the control of the main controller 160. The disc player 159 may be a DVD player for reproducing data recorded on a recording medium, for example, a digital versatile disk (DVD) and / or a compact disk (CD).

The light receiving unit 171 receives a user operation signal transmitted from the remote control device 200 which is an external input device and provides it to the main control unit 160.

The main controller 160 processes a user operation command received through the light receiver 171 and controls each component. The main controller 160 includes a central processing unit (CPU) 161, an MPEG decoder 163 for decoding an MPEG-compressed signal, and a deletion part selected to perform a partial delete function described later. It has a deletion list generation unit 164 for generating a corresponding deletion list. The main controller 160 controls the hard disk drive 151 to delete a selected portion of a predetermined video file in response to the deletion list generated by the deletion list generation unit 164. Here, although the CPU 161 and the MPEG decoder 163 have been described as an example in which a single chip is provided, the main control unit 160 may be provided as a separate chip as a separate chip. to be.

In the flash memory 165, various programs and data related to the performance of the main controller 160 are recorded. For example, it has a predetermined application program for performing the partial deletion function according to the present invention.

The SDRAM 143 is used as a memory used in the encoding process by the MPEG encoder 141, and the SDRAM 167 is used as a temporary memory of the main controller 160.

3 is a diagram of a remote control apparatus 200 which is an external input apparatus of an image recording / reproducing apparatus according to the present invention, and the remote control apparatus 200 will be briefly described with reference to the figure.

In the drawing, reference numeral 211 denotes a menu key used for instructing loading and closing of the menu guide list screen, and portions indicated by 213, 215, 217, and 219 are classified on the menu guide list screen to be described later. Left, right, up and down arrow keys used to indicate cursor movement. Reference numeral 221 denotes an enter key used to select a menu, and 223 denotes a return key used to return to the previous screen from the current screen.

The remaining keys are known keys and specific keys for operating the video recording / reproducing apparatus 100 and the television 300, and the functions of the keys can be easily understood through the letters displayed adjacent to the keys. Even if the detailed description of the function of the present invention is omitted, the detailed description is omitted.

Hereinafter, a partial delete function, which is an editing function of the video recording / playback apparatus 100 according to the present invention, will be described in detail using the menu guide list initial screen displayed on the television 300 as a display apparatus. .

First, an example of the menu guide list initial screen will be described with reference to FIG. 4. Referring to the drawing, the main menu is displayed on the menu guide list initial screen 400. The menus 420 to 450 displayed at the bottom of the drawing include a direction key 420 for moving between respective menus, an enter key 430 for selecting a predetermined menu, and a return key for moving to a higher menu ( return) 440, and an exit key 450 for stopping the use of the menu, which shows a guide to an operation command required for editing a file.

When any one of the main menus 410 is selected, one of the first submenu 510 and the first submenu 510 that is dependent on the selected main menu 410 is selected as shown in FIG. 5. When the second sub-menu 610 subordinate to the first sub-menu 510 is displayed.

For example, the main menu 410 includes a digital recorder menu 411 for managing data stored in the hard disk drive 151, and a DVD player menu 412 for controlling a program stored in the DVD player 159. In addition, a menu such as a "Juke Box" menu 413, a "Photo Album" menu 414, and a "Set Up" menu 415 is included.

When the digital recorder menu 411 is selected from the main menu 410, the main sub menu 510 subordinate to the digital recorder menu 411 is arranged vertically in a row as shown in FIG. 5. 410 is displayed.

When the "Edit" menu 511 is selected to perform an editing function among the first submenus 510 illustrated in FIG. 5, the second submenu 610 subordinate to the "Edit" menu 511 is displayed. Of these, when the "Partial Delete" menu is selected to perform a partial deletion function according to the present invention, the main controller 160 performs an application program having a partial deletion function stored in the flash memory 165, FIGS. The first and second partial deletion mode windows 620 and 630 as shown in FIG. 7 are displayed, thereby performing a partial deletion function.

In the first partial deletion mode window 620 shown in FIG. 6, a list of moving image files recorded on the hard disk drive 151 is displayed in the form of predetermined still picture icons 621 to 625. The still picture icons 621 to 625 are GOP data extracted from a predetermined portion of the GOP data included in each video file, and are GOP data extracted based on "Source" data of the user data 152b shown in FIG. 2B. .

After moving to a predetermined still image icon 621 among still image icons 621 to 625 displayed in the first partial deletion mode window 620, pressing the enter key 221 of the remote control apparatus 200 is shown in FIG. The second partial deletion mode window 630 as shown is displayed.

The second partial deletion mode window 630 may include a display window 631 where the video file corresponding to the selected still picture icon 621 is executed and played, and a gauge corresponding to the length of the video file displayed on the display window 631. Displays a bar (633), a cursor (633a) for displaying the playback position played back on the display window 631, and a still picture corresponding to the portion to be deleted from the playback screen displayed on the display window 631. The edit window 635 is displayed. In addition, after the partial deletion editing is completed, an "Execute" menu 637 that is an execution key for executing the partial deletion function is displayed.

Hereinafter, a process of performing a partial deletion function according to an embodiment of the present invention will be described in more detail with reference to FIGS. 8 and 9.

4 and 5, by selecting the menu key 211 of the remote control device 200 to open the "Digital Recorder" menu 411 of the main menu 410 of the menu guide list initial screen 400. Choose. In order to correspond to the "Digital Recorder" menu 411, the "Edit" menu 511-> "Partial Delete" menu 611 is sequentially selected in the first sub menu 510 and the second sub menu 610. do.

Accordingly, as shown in FIG. 6, in the first partial deletion mode window 620, a list of moving image files 621 to 625 recorded on the hard disk drive 151 is displayed on the display apparatus (S911).

A predetermined video file 621 is selected from the video file list displayed on the first partial delete mode window 620 by using an operation key (for example, a direction key and an enter key) of the remote control apparatus 200 (S913). The main controller 160 reads the moving image file corresponding to the selected still image icon 621 from the hard disk drive 151 and stores the moving image file in the predetermined memory space SDRAM 167 for a partial deletion function to be performed later. In other words, the main controller 160 decodes the video file stored in the SDRAM 167 by the MPEG decoder 163 and displays the image on the display window 631 of the second partial delete mode window 630 as shown in FIG. 7. Play it back. That is, the selected video file is played and displayed on the display window 631 (S915), and the gauge bar 633 displays the cursor (depending on the playback position of the screen currently being played on the display window 631). 633a) is moved.

The part to be deleted may be set based on the playback screen displayed on the display window 631. In this case, the playback speed of the screen displayed on the display window 631 may be doubled.

The user selects a part to be deleted while looking at the playback screen displayed on the display window 631. That is, when the screen corresponding to the start position of the delete portion is displayed on the display window 631, the start position of the delete portion is selected by pressing the enter key 221 of the remote control apparatus 200 (S917). At the same time, pressing the enter key 221, the screen corresponding to the selected start position is displayed on the edit window 635 as a still image 635a (S919).

Thereafter, when the screen corresponding to the end position of the deletion part is displayed on the display window 631, the end position of the deletion part is selected by pressing the enter key 221 (S921). In addition, the screen corresponding to the selected end position is displayed on the edit window 635 as a still image 635b (S923).

In this way, the edit window 635 displays the still images 635a and 635b of the start position and the end position corresponding to the deleted portion, respectively, and the user can recognize the selected deleted portion. Here, of course, a plurality of deletion portions can be selected.

Thereafter, when the "Execute" menu 637 is executed to delete the selected deleted portion displayed in the edit window 635 (S925), the deleted portion selected in the edit window 635 is deleted (S929).

A process of executing the above partial deletion function on the user side has been described, and the process performed on the video recording / reproducing apparatus side with reference to FIG.

FIG. 8A illustrates a video file currently being played on the display window 631. The video file is a file read by the main controller 160 from the hard disk drive 151 and stored in the SDRAM 167. The file name is "000000001.mpg", and the file structure is composed of 0 to 33 GOP (1sec = 2GOP) data.

As shown in (b) of FIG. 8, (5,7), (12,13), (18,21), (27,28) for all GOP data (0 to 33) of the video file "000000001.mpg". The GOP number of is selected by the user to be partially deleted. The deletion list generation unit 164 of the main controller 160 checks the GOP number of the selected deletion portion and generates a deletion list corresponding to the GOP number of the deletion portion (S927). For example, create a list (5, 6, 7, 12, 13, 18, 19, 20, 21, 27, 28) for the GOP number to delete.

After that, when the "Execute" menu 637 is selected, the main control unit 160 determines the deletion list generated by the deletion list generation unit 164 and the entire GOP number of the moving image file (000000001.mpg) stored in the SDRAM 167. The GOP data corresponding to the deletion list is deleted by comparing (0 to 33) (S929).

Thus, a new moving picture file (000000002.mpg) as shown in FIG. 8C is generated in the SDRAM 167 in which partial deletion is completed (S931). The main controller 160 writes a new video file (000000002.mpg) generated in the SDRAM 167 to the hard disk drive 151.

Therefore, the part to be deleted can be selected and deleted from the moving picture file recorded on the hard disk drive 151, thereby improving the editing function.

According to the present invention, the editing function can be improved by providing a partial deletion function to the video recording / reproducing apparatus. This can improve the convenience and efficiency of the user's video recording / playback device.

While the above has been shown and described with respect to preferred embodiments of the present invention, the present invention is not limited to the specific embodiments described above, it is usually in the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

Claims (8)

An image recording / reproducing apparatus for recording and reproducing an audio / video signal received from an external device, A recording apparatus in which a moving image file having image data encoded in a predetermined format is recorded; And When a partial delete command for deleting a partial region for the video file is input, the recording apparatus is controlled to delete the partial region of the video file and to record the video file from which the partial region is deleted to the recording apparatus. And a main control unit. The method of claim 1, Memory for recording the video file further includes; The main control unit, And deleting the partial region of the video file recorded in the memory in response to the partial deletion command, and recording the video file from which the partial region is deleted to the recording apparatus. The method of claim 1, The main control unit, And a deletion list generation unit generating a deletion list corresponding to the partial region. And the partial area of the video file corresponding to the deletion list is deleted. The method of claim 1, The partial delete command, And a selection command for selecting a start position and an end position of the partial region. In the partial deletion method of the editing function of the video recording / reproducing apparatus for recording and playing back the audio / video signal received from the outside, Inputting a partial deletion command for deleting a partial region of a predetermined moving image file among moving image files recorded in the recording apparatus; A deleting step of deleting the partial region of the video file in response to the partial deleting command; And And a recording step of recording the moving image file from which the partial region has been deleted to the recording apparatus. The method of claim 5, After the step of inputting the partial delete command, Re-recording step of recording the moving picture file in the memory; And a deleting step of deleting the partial area of the moving picture file recorded in the memory in response to the partial deleting command, and rewriting to record the moving picture file from which the partial area has been deleted to the recording apparatus. Partial deletion method of video recording / playback device. The method of claim 5, And a deletion list generation step of generating a deletion list corresponding to the partial region. The deleting step, And deleting the partial area of the video file corresponding to the deletion list. The method of claim 5, The partial delete command of the input step is And a selection command for selecting a start position and an end position of the partial region.