JP2006244596A - Disk unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a convenient disk unit where complicated reproduction operation is not required by automatically reproducing a recorded program etc. by only designating a specific date. <P>SOLUTION: The disk unit reproduces recorded information in a disk-type information recording medium where management information of video/voice information recorded in a user data area is recorded in its lead-in area. The disk unit is provided with an input means for inputting a command and information concerning information recording/reproducing of the disk-type information recording medium, and a control means 18 which discriminates presence of recording at the designated date from the management information of the disk-type information recording medium on occurrence of reproduction command of the video/voice information to which the specific date is designated from the input means and which carries out control for starting reproduction in ascending order of recording time in presence of recording. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a disc device that controls the playback order of video / audio information (AV information) recorded on a DVD (Digital Versatile Disc) or the like, and in particular, efficiently plays back AV information based on date / time information at the time of recording. The present invention relates to a disc device that can be used.

  Various electronic devices have been proposed for the purpose of efficiently reproducing video information and audio information after recording them on an information recording medium. As an example, a device and a method for retrieving recorded image information are known ( For example, see Patent Document 1).

  This is applied to a VTR, and a main microcomputer controls a mechanical microcomputer and a display microcomputer to reproduce information.

  That is, the mechanical microcomputer takes out the date information and the track number corresponding to the date information from the memory cassette. Then, the extracted date information is transmitted to the display IC and displayed on the monitor.

  Based on this display information, when the user selects date information corresponding to the desired image data by operating the remote controller, the mechanical microcomputer controls the travel of the memory cassette up to the track number corresponding to the date information, and the desired image Play the data on the monitor.

As a result, the recorded dates are displayed in a list, so that a user can view a desired image on the monitor without having to input the index as in the prior art.
Japanese Laid-Open Patent Publication No. 9-63250 has also proposed an audio signal reproduction device for easily performing time-series reproduction of a plurality of audio data (see, for example, Patent Document 2). This playback apparatus uses a medium in which information on the recording date and time of audio data is recorded in the TOC area. A plurality of audio data is selectively reproduced according to the recording date / time information of the TOC area. As a result, it is possible to reproduce from the recorded information of a predetermined area or more of the medium, for example, in order from the oldest recording date, the newest recording date and the designated recording date. Japanese Laid-Open Patent Publication No. 6-103737 has also proposed an optical disc, an optical disc recording device, and an optical disc playback device capable of text search corresponding to multiple languages (see, for example, Patent Document 3). When recording a moving image on an optical disk, this system records text data and records the recording start date / time, end date / time, source name or channel number as alphanumeric data for each program or cell of the recording unit as essential text data. . Other text data is recorded together with the language code. As a result, even if there are various languages of text data at the time of playback, the required text data for selecting video data is expressed in alphanumeric characters, so it is possible to select a program or cell to be played regardless of the language. Furthermore, it is possible to search for text information of the same language code as the language code of the device. JP 2002-197840 A

By the way, since the playback device of the above-mentioned patent document 1 needs to select the date information by operating the remote controller after displaying the recorded dates in a list, the playback image cannot be seen immediately, which is also bothersome. The problem of operation was left.
Further, the playback device of Patent Document 2 can play back in order of oldest recording date, newest order, and specified recording date, but it is necessary to selectively reproduce a plurality of audio data according to the information of the recording date of the TOC area. Therefore, there is a limit to simplifying the operation.
Furthermore, the optical disc recording / reproducing apparatus of Patent Document 3 also requires a predetermined operation during reproduction, and does not automatically start reproduction. I couldn't.
The present invention has been made in view of the above problems, and provides a disc device excellent in convenience in which a recorded program or the like is automatically reproduced only by designating a specific date, and a cumbersome reproduction operation is unnecessary. It is aimed.

In order to achieve the above object, the present invention provides a disc apparatus for reproducing recorded information of a disc type information storage medium for recording management information of video / audio information recorded in a user data area in a lead-in area. When there is an input means for inputting instructions and information related to information recording / reproduction of the information storage medium, and a reproduction instruction for video / audio information designating a specific date from this input means, the management information of the disc type information storage medium It is characterized by comprising control means for determining the presence or absence of recording on the designated date, and performing control to start reproduction in the order of the recording time when there is recording.
Further, the display means for displaying the contents of the video / audio information, the edited contents of the playlist, etc., and when there is a reproduction command designating a specific date from the input means, the control means determines the presence or absence of recording, When there is no recording, the display means displays that effect, and when there is a recording, the playlist is generated and edited in the order of the recording time, and the playback order is displayed on the display means to start playback. It is characterized by letting.
The rewritable disc information storage medium having a larger recording capacity than the disc information storage medium is provided with a disc driver for updating and recording the video / audio information, and recording from the input means to the disc information storage medium When there is a command, the control means controls the disk driver to search the recording information in the rewritable disk information storage medium, and the video / audio information is recorded in the order of the recording time on the designated date in the order of the recording time. It is characterized by performing control for recording in a storage medium.

As described above, the disc device according to the present invention determines whether or not recording is performed on the designated date from the management information of the disc type information storage medium when there is a reproduction instruction of video / audio information designating a specific date from the input means. However, when there is a recording, the playback is started in the order of the recording time, so that the troublesome operation as in the case of starting the playback in accordance with a selection command for a specific date after displaying the recorded contents as in the past is unnecessary. In addition, since the reproduction is started quickly, the recorded program or the like can be viewed quickly.
Also, if there is a playback command specifying a specific date from the input means, when there is no recording, that effect is displayed on the display means, and when there is recording, the playlist is generated and edited in order of the recording time, In addition, since the reproduction order is displayed on the display means and reproduction is started, there is an advantage that the user can know the presence or absence of recording by looking at the display contents and can immediately confirm the recorded information in the playlist.
Also, if there is a recording command from the input means to the disc type information storage medium, the record information of the rewritable disc type information storage medium is searched and the video / audio information is recorded in the order of the recording time on the designated date. Thus, there is an advantage that a troublesome operation such as when recording is started in accordance with the selection command after displaying the recorded contents of a specific date as in the prior art.

Hereinafter, embodiments of the disk device of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a block diagram showing an electrical configuration of a disk device according to an embodiment of the present invention.
The disk apparatus of this embodiment is applied to a DVD recorder. The received video / audio signal of a television broadcast program is compressed and encoded by the MPEG (Moving Picture Experts Group) method, multiplexed, and then transferred to the MPEG system. It is configured so that it can be updated and recorded on a hard disk (HD) in the HDD as a port stream (TS) and the recorded video / audio signal can be recorded on a DVD.
This DVD is composed of a lead-in area, a user data area, and a lead-out area, and video / audio information (AV information) such as a movie program is recorded in the user data area.
In this DVD, when AV information is written as digital data in a user data area, an address for indicating a fine point (position) in a spiral recording track is assigned in advance. This address corresponds to the elapsed time from the first recording position to the last recording position of the AV information.
In the TOC area of the lead-in area, the recording position of each chapter and each title is recorded with address data corresponding to the elapsed time information from the recording start position (first chapter of title number 1).
Therefore, when the data in this TOC area is read, the title number and chapter number of the movie, etc. recorded in the user data area of the recording track, the recording start and end positions, the detailed recording time, etc. are displayed on the monitor 17. It can be displayed on the screen.
Reference numeral 1 denotes a tuner, to which a television broadcast signal received by an antenna is guided. A command signal from the control unit 18 is guided to the tuner 1, and the YC separation circuit 2 and the A / D conversion circuit 7 are connected to the tuner 1.

  Then, the composite video signal of the selected channel is sent to the YC separation circuit 2 by the command of the control unit 18 based on the input operation of the remote controller (not shown), while the composite audio signal is sent to the A / D conversion circuit 7. Is done.

An NTSC (National Television System Committee) decoder 3 is connected to the YC separation circuit 2, and the composite video signal is separated into a luminance signal and a color difference signal and transmitted to the NTSC decoder 3.
The NTSC decoder 3 obtains component video data from the NTSC decoder 4 by subjecting the luminance signal and the color difference signal to A / D conversion and further performing chroma encoding.
An MPEG video encoder 5 is connected to the NTSC decoder 3 via a pre-video processing circuit 4. When the video data is output to the pre-video processing circuit 4, the pre-filtering process is performed, and then the MPEG video encoder 5 and the post video processing circuit 13 side.
The MPEG video encoder 5 performs an encoding process such as a block DCT (Discrete Cosine Transform) on the video data from the pre-video processing circuit 4, generates a video elementary stream (ES), and a multiplexer / Supplied to the demultiplexer 6.
On the other hand, an MPEG audio encoder 8 and an output switching circuit 15 are connected to the A / D conversion circuit 7, and an analog composite audio signal is converted into digital audio data. 15 to send.
A multiplexer / demultiplexer 6 is connected to the MPEG audio encoder 8, and the digital audio data from the A / D conversion circuit 7 is compression-encoded by the MPEG system to generate an audio elementary stream to generate the multiplexer / demultiplexer 6. To supply.
The multiplexer / demultiplexer 6 is connected to the buffer controller 9 and is connected to the MPEG video / audio encoder 12, and performs data processing in the recording mode or the reproduction mode according to a command from the control unit 18.
In the recording mode, the multiplexer / demultiplexer 6 multiplexes the video elementary stream from the MPEG video encoder 5, the audio elementary stream from the MPEG audio encoder 8 and various control signals by the multiplexer, and transports the MPEG system. A stream is generated and sent to the buffer controller 9.
The buffer controller 9 sends a transport stream continuously input from the multiplexer / demultiplexer 6 to the hard disk drive 10.
At this time, since the buffer controller 9 performs transmission processing while temporarily accumulating the transport stream, it is supplied to the hard disk drive 10 without interruption.
A command signal from the control unit 18 is guided to the hard disk drive 10, and an output is connected to the disk drive 11.

The hard disk drive 10 writes a transport stream to the HD in accordance with a recording command from the control unit 18 for update recording, and supplies the recorded information to the disk drive 11 while reproducing the recorded information in accordance with the reproduction command.
A disk (DVD) is inserted and set in the disk drive 11, and a transport stream is recorded on the DVD according to a command from the control unit 18.
Thereby, it is possible to record on the DVD according to the selection of the broadcast program written on the HD for a long time.

  On the other hand, in the playback mode, the hard disk drive 10 reads the transport stream from the hard disk and sends it to the buffer controller 9 in accordance with the playback command of the control unit 18.

  In contrast to the recording mode, the buffer controller 9 converts a transport stream intermittently input from the hard disk drive 10 from the hard disk into a continuous transport stream and supplies the continuous transport stream to the multiplexer / demultiplexer 6.

This multiplexer / demultiplexer 6 analyzes the header of the continuous transport stream by the demultiplexer, thereby separating the PES (Packetized Elementary Stream) from the transport stream and sending it to the MPEG video / audio encoder 9. The
The MPEG video / audio encoder 12 is connected to a post video processing circuit 13 and an output switching circuit 15 to separate the PES into a video elementary stream and an audio elementary stream.
Further, the video elementary stream is combined by the MPEG video encoder and converted into baseband video data, while the audio elementary stream is combined by the MPEG audio encoder and converted to baseband audio data. Respectively.
The converted video data is sent to the post video processing circuit 13, while the audio data is sent to the output switching circuit 15.
An OSD (On Screen Display) circuit (not shown) is connected to the post video processing circuit 13, and the video data from the MPEG video / audio encoder 12 and the video data from the pre-video processing circuit 4 according to a command from the control unit 18. On the other hand, switching between the two, synthesis, post-filtering processing or the like is performed.
The post video processing circuit 13 generates a representative screen for GUI (Graphical User Interface), performs a process of reducing and pasting a plurality of representative screens to a window, and supplies the processed video data to the OSD circuit. .
This OSD circuit generates image data corresponding to text information or the like according to a command from the control unit 18, performs a process of superimposing the video data from the post video processing circuit 13 on the video data of the window portion, and processes the processed video. Data is sent to the NTSC encoder 14.
The NTSC encoder 14 converts the composite video data from the OSD circuit into luminance data and color difference data, or performs D / A conversion without conversion to generate an analog separate video signal and composite video signal. .
The separate video signal and composite video signal are supplied to the monitor device 17 via the output terminal.
On the other hand, a D / A converter 16 is connected to the output switching circuit 15, and audio data from the MPEG video / audio encoder 12 or digital audio data from the A / D conversion circuit 7 according to a command from the control unit 18. Are selectively extracted.
The extracted audio data is converted into an analog audio signal by the D / A converter 16 and supplied to the monitor device 17 via the output terminal.
The monitor device 17 is a television receiver, and displays a television broadcast program of a reception channel and a playback image of a DVD on the screen 17a in accordance with an instruction from the control unit 18 based on a remote control operation, and is synchronized with this. Sound from the speaker.
The remote control includes various operation keys for operating the DVD recorder. The operation keys include a power key for turning on / off the power, an opening / closing key for opening / closing the tray, a numeric keypad, a menu key, a setting key, a decision key, a cursor key, and the like, as in a general remote controller.
The menu key outputs a command to display a menu (MENU) on the screen. The numeric keypad can be used to input a specific date at the time of reproduction on the menu screen.
The cursor key also functions as a function key, and play, stop, fast forward, and fast reverse functions are assigned to the keys arranged vertically and horizontally.
The control unit 18 is a microcomputer that controls the operation of the entire apparatus, and is connected unidirectionally or bidirectionally depending on each part of the circuit and its function.
The control unit 18 records the television broadcast program of the reception channel on the DVD or the program information updated and recorded on the HD in accordance with the command signal from the remote controller.
On the other hand, DVD or HD recording information is reproduced and displayed in accordance with a command from the remote controller.
Further, the control unit 18 stores character information in the memory. When there is no recording information in the DVD or HD, the control unit 18 sends the character information in the memory to the OSD circuit to display characters as shown in FIG.
Further, when there is a playback command designating a specific date from the remote controller, the playlist is rearranged in the order of the recording time of the DVD, the playlist is generated and edited, and this playback order is displayed as shown in FIG. It is configured.
Next, the operation of the DVD recorder will be described with reference to the drawings.
Here, a case will be described in which a user holds a large number of DVDs including a DVD in which a plurality of TV broadcast programs are recorded in a recording mode having a long recording time and a DVD whose recording is unknown or not.
When these DVDs are played back by the user, they are mounted on a DVD recorder and a specific date to be played back is input by operating the remote controller.
Accordingly, the control unit 18 operates the playback system to read the recorded information on the DVD.
If a DVD is recorded, the recorded program channel, recording date, recording mode, etc. are recorded in the lead-in area as a recording file.
First, when the management information of the lead-in area is read, the control unit 18 searches whether there is a recording file with a specified date.
Here, if there is no recording file, the control unit 18 determines that there is no recording of the designated date, and as shown in FIG. 2, the character “No recording of the designated date” is enlarged on the screen of the monitor device 17. Display. As a result, the user can know that the DVD has not been recorded on the desired date.
On the other hand, when there are recording files, if there are a plurality of files, the control unit 18 searches in order from the earliest recording time. Then, a playlist as shown in FIG. 3 is generated and edited in the order of time.
In this playlist, the broadcast program “A” is the first, the broadcast program “B” is the second, the broadcast program “C” is the fourth, Edit the second as none and register it in the work memory.
Thereafter, the control unit 18 starts reproduction according to the playlist. At this time, the control unit 18 sends work memory information to the monitor device 17 to display a playlist as shown in FIG. 3 on the screen. In addition, the text “Play the recording of the year, month, month, day.” Is also displayed.
As a result, the user can view the playlist from the beginning in order of the recording time, while knowing the outline of the program on the specified date.
By the way, although HD depends on the capacity and the recording mode, it is possible to record continuously for a long period from one month to several months. Also, DVDs with a large recording capacity are becoming popular.
For this reason, when a user has not been able to record a specific day of broadcasting on a DVD without a certain period of time, it is widely performed to record a broadcast program that has been updated and recorded from HD to DVD.
In this example, when the user commands recording on a specific day by operating the remote controller, the control unit 18 operates the recording system to cause the automatic enemy to start recording.
That is, the hard disk drive 10 supplies the transport stream to the disk drive 11 while reproducing the recorded information in accordance with the reproduction command of the control unit 18.
The disk drive 11 records a transport stream on the inserted and set DVD.
Therefore, it is possible to record only the specified date on the DVD in the order of the recording time among the broadcast programs written on the HD for a long time.
At this time, the control unit 18 generates and edits the playlist in the order from the earliest recording time, and displays it on the screen of the monitor device 17, so that the user can easily grasp the recorded contents by viewing this.
As a result, it is possible to record one day with New Year and Golden Week on one DVD and listen to an arbitrary program.
If the user wants to continue recording, another DVD may be inserted and set and the date specified.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

It is a block diagram which shows the electric constitution of the disc apparatus which is one Embodiment of this invention. It is a screen figure which shows the discrimination | determination result of the recording information displayed on the monitor. It is a screen figure which shows the example of edit of the play list displayed on the monitor.

Explanation of symbols

17 Display means 18 Control means

Claims (3)

In a disc apparatus for reproducing recorded information of a disc-type information storage medium for recording management information of video / audio information recorded in a user data area in a lead-in area,
Input means for inputting instructions and information related to information recording / reproduction of the disk-type information storage medium;
If there is a playback instruction for video / audio information specifying a specific date from this input means, the presence / absence of recording on the specified date is determined from the management information of the disc type information storage medium. And a control unit that performs control to start reproduction in an early order. Displaying means for displaying the contents of the video / audio information, the editing contents of the playlist, and the like, and when there is a reproduction command specifying a specific date from the input means, the control means determines whether or not recording is performed, When there is no recording, display that effect on the display means, and when there is a recording, rearrange the recording times from the earliest to create and edit the playlist, and display the playback order on the display means to start playback. The disk device according to claim 1. A rewritable disc information storage medium having a recording capacity larger than that of the disc information storage medium is provided with a disc driver for updating and recording the video / audio information, and a recording command from the input means to the disc type information storage medium is provided. If there is, the control means controls the disk driver to search the recording information of the rewritable disk information storage medium, and the video / audio information is recorded in the order of the recording time on the designated date in the order of the recording time. The disk device according to claim 1, wherein control is performed to cause the recording to be performed.