JP4235953B2 - Recording device - Google Patents

Description

  The present invention enables random access such as DVD (Digital Versatile Disk) to data such as video and audio managed by the time code obtained by editing with the VTR while using the VTR and the remote controller that controls the VTR. The present invention relates to a recording apparatus for recording on a simple recording medium.

  Recently, an optical disc recording / reproducing apparatus for moving images that reproduces an optical disc on which data such as video and audio is recorded has been developed. This device is defined as recording a video signal encoded by the internationally standardized MPEG2 (Moving Picture Experts Group Phase 2) encoding method and recording an audio signal compressed and encoded by the AC-3 method. Recording is performed according to the DVD standard. With this optical disc recording / reproducing apparatus, it is possible to enjoy video software and enjoy karaoke.

  On the other hand, as a VTR recording method for recording video software using a tape medium, in addition to the conventional analog method VHS, a DV method for recording digitally has been developed. A DV can also be connected to a computer via a DV terminal, and the connected computer can copy a video / audio signal to the VTR while controlling the DV while editing.

  Here, the editing of moving images recorded in the VTR was mainly performed by so-called linear editing, in which two VTRs were initially connected to each other and repeated while copying from one to the other. In recent years, non-linear editing in which a moving image recorded on a VTR is copied to a personal computer (hereinafter sometimes referred to as a PC) equipped with a hard disk and the moving image copied to the PC is edited has become widespread. A user performs editing work using a controller of a non-linear editing machine (PC). Editing of moving image and audio data recorded on the hard disk is executed in accordance with an editing instruction input from the controller.

  The edited video / audio data can be written back to the VTR. The user inputs the write back start point and end point using the controller. The CPU starts playback of the VTR based on the time code, and starts writing back when the time code at the start point is reached. The edited video / audio signal recorded on the hard disk is output to the VTR. When the CPU reaches the time code at the end point, it ends the write-back. The non-linear editing machine can be connected to the VTR to take in the material recorded on the video tape and to write back the edited digital data such as video and audio to the VTR side.

Patent Document 1 discloses an optical information recording / reproducing apparatus that can read (write back) a moving image such as video information using an optical disc that can be read (or written back) in a short time. . The optical information recording / reproducing apparatus records and reproduces on an optical disc while making it possible to convert between a track address attached to an information track of the optical disc and an address which is a representation of a time code attached to the image at the time of image reading. To do. The read operation can be performed based on the time code, and the editor can easily perform the operation while being an optical disk device, and can be randomly accessed, and the image address becomes discontinuous. An optical information recording / reproducing apparatus capable of reproducing is realized.
JP-A-5-36250

  However, in the case of the optical information recording / reproducing apparatus described in Patent Document 1, the VTR and the optical information recording / reproducing apparatus are combined to read out a moving image edited by the VTR and send it to the optical information recording / reproducing apparatus. In order to record in a predetermined recording area of the optical disc, both control means for controlling the VTR and control means for controlling the optical information recording / reproducing apparatus are required. It is complicated to read a predetermined moving image and copy it to a predetermined recording area of the optical disk while operating two different control means.

  By the way, two VTRs are connected, and those VTRs are operated by operating one remote controller to copy a predetermined moving image recorded in one VTR to a predetermined part of the other VTR, A moving image recorded at a location can be copied to a predetermined location on the other VTR. Therefore, it is easy to connect the VTR and the optical disk recording device and copy a predetermined moving image recorded on the VTR to a predetermined area of the optical disk stored in the recording device by using a VTR remote controller. It becomes possible to produce a high-quality optical disc.

  However, the remote controller for VTR does not assume that an optical disk recording device is connected or controlled. Therefore, the actual situation is that it is impossible to control the optical disk recording apparatus with the VTR remote controller.

Here, even if the VTR and the optical disk recording apparatus are connected, the optical disk recording apparatus cannot be operated using the VTR remote controller. The reason is as follows.
(1) The optical disk (DVD or the like) is a random access device, and the VTR is a sequential access device.
(2) There is no concept of time code or track number in an optical disk (DVD or the like).
(3) The VTR remote controller recognizes the time code returned via RS232C, RS422, etc., and performs an IN point (recording start point) search based on the recognition information. There is no concept of managing the address of the optical disc.
That is, a controller that performs control using a signal defined by RS422 or RS232c performs VTR control using a time code, and a controller that uses a control signal defined by IEEE (Institute of Electrical and Electronics Engineers) 1394 VTR control is performed using time code and absolute track number. Compared to these, in the case of DVD, there is no concept related to disc read / write control using time codes and track numbers.

  For the above reasons, it is not possible to operate the optical disk recording apparatus using a remote controller designed for VTR or DV control and record on the optical disk. Therefore, for example, when there is video or audio data that is recorded on the VTR and should be copied to the optical disk, the VTR and the optical disk recording device are connected, and digital data (such as video and audio) using the remote controller for VTR control ( There has been a desire to develop an optical disc recording apparatus that can easily record content on an optical disc such as a DVD.

  Therefore, the present invention has been made to solve the above-described problems, and stable operation, high-speed processing, and high quality can be achieved with simple operation by control from a VTR remote controller having a VTR control function. It is an object of the present invention to provide a recording apparatus that can easily record content recorded on a VTR onto an optical disc.

  According to a first aspect of the present invention, there is provided a recorder for recording a video / audio signal recorded on a VTR on an optical disc by a control command and a status sense command output from a remote control unit, and the control command and the status sense command. And a control circuit that generates a signal that causes the recorder to record a video / audio signal. The control circuit receives the control command and analyzes the control command; and the analysis in the control command analysis means Mode means for generating a cue-up mode based on the result, time code generator means for generating a virtual time code corresponding to the cue-up mode, and a virtual track number corresponding to the cue-up mode A recording apparatus comprising: a track number generator for generating a status command response means for outputting a cue-up mode, the virtual time code and the virtual track number in response to the status sense command To do.

  According to the present invention, the control circuit receives the control command and analyzes the control command analysis means, the mode means for generating the cue-up mode based on the analysis result in the control command analysis means, and the cue-up mode. Time code generator means for generating a corresponding virtual time code, track number generator means for generating a virtual track number corresponding to the cue-up mode, a cue-up mode in response to a status sense command, the virtual time code and the With a status command response means that outputs a virtual track number, control from a VTR remote controller that has a VTR control function enables stable operation, high-speed processing, and high-quality finish with simple operations. The content recorded in the TR of the recording apparatus can be realized which can easily be recorded on the optical disk.

A recording apparatus according to each embodiment of the present invention will be described below with reference to FIGS.
FIG. 1 is a connection diagram of a recording apparatus, a VTR, and a remote controller according to an embodiment of the present invention.
FIG. 2 is a block diagram illustrating a configuration example of a main part of the recording apparatus according to the embodiment of the present invention.
FIG. 3 is a diagram illustrating processing of the RealMode discrimination unit.
FIG. 4 is a diagram illustrating the processing of the Imaginary TTC (virtual time code) generation unit.
FIG. 5 is a diagram showing the processing of the Primary ATN (virtual track number) generation unit.
FIG. 6 is a diagram (part 1) illustrating an example of a command sequence for performing a VTR emulation operation.
FIG. 7 is a diagram (part 2) illustrating an example of a command sequence for performing a VTR emulation operation.
FIG. 8 is a diagram (part 3) illustrating an example of a command sequence for performing a VTR emulation operation.

  The recording device can easily record content recorded on the VTR to an optical disc with stable operation, high-speed processing, and high-quality finish by simple operation under the control of a VTR remote controller having a VTR control function. In order to realize a recording apparatus that can perform control command analysis means for receiving and analyzing a control command, mode means for generating a cue-up mode based on an analysis result in the control command analysis means, and the cue-up mode Time code generator means for generating a corresponding virtual time code, track number generator means for generating a virtual track number corresponding to the cue-up mode, cue-up mode in response to a status sense command, and the virtual time code And realized by using a control circuit and a status command response means for outputting the virtual track number.

The configuration of the recording apparatus will be described.
The recording apparatus 2 shown in FIG. 1 includes a DVD recorder 35 and a control circuit 21. The DVD recorder 35 and the VTR 1 are connected by an analog AV cable or a DV cable constituted by an IEEE 1394 serial bus. The control circuit 21 is connected to the VTR remote controller 4 via a cable such as RS232C (Recommended Standard 232 version C) or RS422 (Recommended Standard 422). The VTR remote controller 4 is connected to the VTR 1 via a cable such as RS232C or RS422.
The control circuit 21 shown in FIG. 2 includes a control system processing unit 22, a control command analysis unit 23, an ImaginaryMode generation unit 24, a RealMode determination unit 25, a Status command response unit 26, a ModeStatus generation unit 27, an Imaginary TTC generation unit 28, and an Imaginary ATN generation. The unit 29 is configured.

The operation of the recording apparatus will be described.
Hereinafter, connecting the recording device 2 to the VTR remote controller 4 and controlling the recording device 2 from the VTR remote controller 4 is referred to as VTR emulation. VTR emulation will be described.

  First, the recording start point and the recording end point of digital data (hereinafter also referred to as contents) such as video and audio to be recorded on the DVD recorder 35 are designated by operating the VTR remote controller 4. For specifying the recording start point and the recording end point, the recording position for the DVD recorder 35 on the sending side is specified as the position of the time code to be recorded in the virtual VTR in the control circuit 21. Next, a copy start operation is performed by the VTR remote controller 4. The VTR remote controller 4 cues the content specified as an in-point and performs a cue-up operation on the virtual VTR. During the cue-up virtual operation, the DVD recorder 35 is in a stopped state without performing any special operation. The virtual VTR returns the virtual time code in response to the issuance of the time code sense from the VTR remote controller 4 after the virtual queue up operation is completed.

  The operation mode signal and the status signal generated as the virtual VTR signal by the control circuit 21 are transmitted to the VTR remote controller 4. From the control circuit 21, the address information of the recording medium output from the DVD recorder 35 is output as a status signal converted into time code information described later. The VTR remote controller 4 operates to cause the recording device 2 to copy predetermined content to the virtual VTR. After recording the designated content, the copy operation of the DVD recorder 35 is terminated.

The control circuit 21 will be described in detail with reference to FIG.
The control signal input / output to / from the control circuit 21 is the same as the signal input / output when an actual DV device (VTR) is connected. The VTR remote controller 4 can also control the recording apparatus 2 by performing VTR control. The control circuit 21 controls the DVD recorder 35 in accordance with the recording device command received from the VTR remote controller 4.

  When receiving the DV control command, the control processing unit 22 first selects a corresponding command sequence from the optical disc command sequence list. The so-called VTR and the recording apparatus 2 are functionally similar, but have very different structures, and the recording apparatus 2 cannot be controlled simply by returning instructions. Therefore, in the command sequence, in addition to the instruction for the optical disk corresponding to the instruction for the DV device, information such as an instruction unique to the optical disk necessary before and after the instruction, execution order, timing, and the like are included.

  The control command analysis unit 23 receives and analyzes the device control commands (PLAY, STOP, REC, etc.) of the AV / C command from the VTR remote controller 4 via the control system processing unit 22 and generates an analysis mode of the analysis result. To the unit 24. Further, the control command analysis unit 23 manages the execution order based on the command sequence selected by the control system processing unit 22.

  The ImaginaryMode generating unit 24 generates ImaginaryMode based on the analysis result input from the control command analyzing unit 23, and outputs it to the RealMode discriminating unit 25, ModeStatus generating unit 27, ImaginaryTTC generating unit 28, and ImaginaryATN generating unit 29. The Primary Mode is a virtual mode set from the device control command of the AV / C command when performing VTR emulation.

  The RealMode discriminating unit 25 determines whether the ImaginaryMode input from the ImaginaryMode generating unit 24 is a recording system command or a playback system command, and if it is a recording system command, transmits it to the DVD recorder 35. According to the processing of the RealMode discriminating unit 25 shown in FIG. 3, if the PrimaryMode is REC (recording) and STOP (stop), the RealMode is the same as the ImaginaryMode, and the RealMode discriminating unit 25 transmits the RealMode to the DVD recorder 35. If the PrimaryMode is other than REC or STOP, the RealMode determination unit 25 outputs nothing.

  The ModeStatus generating unit 27 determines whether the ImaginaryMode is a recording command or a playback command, and if it is a recording command, adopts the status of the DVD recorder 35, and if it is a playback command, adopts ImaginaryMode as the status. Output to the command response unit 26.

  The Imaginary TTC generation unit 28 generates an Imaginary TTC according to the ImaginaryMode. According to the processing of the Imaginary TTC generation unit 28 shown in FIG. 4, when the Primary Mode is REC (recording) or PLAY (playback), it is incremented once per frame, and when it is double speed (× 2), it is incremented twice per frame. The process is incremented four times per frame at quadruple speed (× 4), and no process is performed at STOP (stop). The generated Imaginary TTC is output to the Status command response unit 26.

  The Imaginary ATN generation unit 29 generates an Imaginary ATN that matches the Imaginary Mode. In accordance with the process of the Imaginary ATN generator 29 shown in FIG. 5, when the Imaginary Mode is REC (recording) or PLAY (playback), it is incremented 10 times per frame, and when it is double speed (× 2), it is incremented 20 times per frame. Processing is performed such as 40 times increment processing per frame for quadruple speed (× 4) and no processing for STOP (stop). The generated Imaginary ATN is output to the Status command response unit 26. Note that the number of increment processes is the case where the video signal to be transmitted is the NTSC (National Television Standard Committee) system, and in the case of the PAL (Phase Alternation by Line) system, they are 12, 24, and 48 times, respectively.

  When the control command analysis unit 23 receives a status sense command (mode, TTC, ATN sense) from the VTR remote controller 4, the Status command response unit 26 responds to each by receiving a ModeStatus generation unit 27, an IMTary generation unit 28. The ImaginaryMode, ImaginaryTTC, and ImaginaryATN input from the Imaginary ATN generating unit 29 are output to the VTR remote controller 4 via the control system processing unit 22.

  Next, VTR emulation in the recording apparatus 2 will be described with reference to FIGS. 6 to 8 are diagrams showing an example of a command sequence that is controlled by the VTR remote controller 4 and performs an operation of copying the content recorded in the VTR that has been edited to the recording device 2. This command sequence is stored, for example, in a memory (not shown) provided in the VTR remote controller 4.

  First, in step S20, when the VTR remote controller 4 starts executing content copying from the VTR 1 via the DV cable connected to the DVD recorder 35 of the recording device 2, the VTR 1 searches for an In point that is a predetermined copy start position. Queue up to do. That is, in step S30, a CPU (not shown) of the VTR remote controller 4 issues a 20 × search command to the recording apparatus 2. In step S40, the 20x search command is input to the control command analysis unit 23 via the control system processing unit 22 and analyzed, and the ImaginaryMode generation unit 24 sets the ImaginaryMode to 20x search. This ImaginaryMode is input from the ImaginaryMode generation unit 24 to the ImaginaryTTC generation unit 28 and the ImaginaryATN generation unit 29, and the ImaginaryTTC and the ImaginaryATN step by 20 frames.

  In step S50, the VTR remote controller 4 issues a status sense. In step S60, the ModeStatus generation unit 27 adopts ImaginaryMode (20 times search here) as the status because the ImaginaryMode is a reproduction system command, and the Status command response unit 26 outputs the ImaginaryMode to the VTR remote controller 4. In step S70, the VTR remote controller 4 receives ImageMode (20 times search) as a status, and recognizes that the recording apparatus 2 has made a 20 times search.

  In step S80, the VTR remote controller 4 issues a time code sense. In step S 90, the status command response unit 26 receives the Imaginary TTC from the Imaginary TTC generation unit 28 and outputs it to the VTR remote controller 4. In step S100, the VTR remote controller 4 recognizes that the recording apparatus 2 is approaching the IN point roughly. In step S110, the VTR remote controller 4 issues a playback (PLAY) command.

  In step S120, the playback command is input to the control command analysis unit 23 via the control system processing unit 22 and analyzed, and the PrimaryMode generation unit 24 sets the PrimaryMode to playback. This ImaginaryMode is input from the ImaginaryMode generation unit 24 to the ImaginaryTTC generation unit 28 and the ImaginaryATN generation unit 29, and the ImaginaryTTC and the ImaginaryATN step by 20 frames.

  Next, in step S130, the VTR remote controller 4 issues a status sense. In step S140, the ModeStatus generating unit 27 adopts (reproduced here) as the status, and the Status command response unit 26 outputs the PrimaryMode to the VTR remote controller 4. In step S150, the VTR remote controller 4 receives ImageMode (reproduction) as a status, and recognizes that the mode of the recording apparatus 2 has been reproduced. In step S160, the VTR remote controller 4 issues a time code sense. In step S <b> 170, the status command response unit 26 receives the Imaginary TTC from the Primary TTC generation unit 28 and outputs it to the VTR remote controller 4. In step S180, the VTR remote controller 4 recognizes that the recording apparatus 2 is approaching the IN point.

  In step S190, the VTR remote controller 4 issues a still command. In step S200, the still command is input to the control command analysis unit 23 via the control system processing unit 22 and analyzed, and the ImaginaryMode generation unit 24 sets the ImaginaryMode as still. This ImaginaryMode is input from the ImaginaryMode generation unit 24 to the ImaginaryTTC generation unit 28, the ImaginaryATN generation unit 29, etc., and the ImaginaryTTC and the ImaginaryATN stop stepping.

  In step S210, the VTR remote controller 4 issues a frame advance command. In step S220, the frame advance command is input to the control command analyzer 23 via the control system processor 22 and analyzed, and the ImaginaryMode generator 24 sets the ImaginaryMode to frame advance. This ImaginaryMode is input to the Imaginary TTC generation unit 28, the Imaginary ATN generation unit 29, etc., and the Imaginary TTC and the Imaginary ATN step up by one frame.

  Next, in step S230, the VTR remote controller 4 issues a time code sense. In step 240, the status command response unit 26 receives the Imaginary TTC from the Imaginary TTC generation unit 28 and outputs it to the VTR remote controller 4. In step S250, the VTR remote controller 4 recognizes that the recording apparatus 2 has reached the IN point. During the above cue-up operation, no operation command is issued to the DVD recorder 35, and the DVD recorder 35 remains stopped. However, the VTR remote controller 4 recognizes that the virtual VTR performing the cue-up operation has reached the IN point, and performs the following operation.

  In step S260, the VTR remote controller 4 issues a record (REC) command from the connected device control unit 2. In step S270, the recording command is input to the control command analysis unit 23 through the control system processing unit 22 and analyzed, and the ImaginaryMode generation unit 24 sets the ImaginaryMode to recording. This ImaginaryMode is input from the ImaginaryMode generating unit 24 to the RealMode discriminating unit 25, the Imaginary TTC generating unit 28, the Imaginary ATN generating unit 29, etc., and the Imaginary TTC and the Imaginary ATN step up.

  Next, in step S280, the RealMode determination unit 25 issues a recording start to the DVD recorder 35 because the ImaginaryMode input from the ImaginaryMode generation unit 24 is recording. In step S290, the DV-compressed stream data signal input from the VTR 1 is converted into a general REC 656 signal and output to the DVD recorder 35, and the DVD recorder 35 starts recording. At the same time, the status becomes a record.

  Next, in step S300, since the status of the DVD recorder 35 is the recording system, the ModeStatus generating unit 27 adopts the status from the DVD recorder 35 as the status in response to the inquiry from the VTR remote controller 4, and outputs it to the Status command response unit 26. To do. In step S310, the VTR remote controller 4 issues a status sense from the connected device control unit 2. In step S320, the status command response unit 26 outputs the status (recording) from the DVD recorder 35 to the VTR remote controller 4 as the status. In step S330, the VTR remote controller 4 recognizes that the mode of the recording apparatus 2 is recording.

  In step S340, the VTR remote controller 4 issues a STOP command when the OUT point of the content being copied is reached. In step S350, the STOP command is input to the control command analysis unit 23 via the control system processing unit 22 and analyzed, and the ImaginaryMode generation unit 24 sets the ImaginaryMode to STOP. This ImaginaryMode is input from the ImaginaryMode generation unit 24 to the ImaginaryTTC generation unit 28, the ImaginaryATN generation unit 29, etc., and the ImaginaryTTC and the ImaginaryATN stop stepping.

  Next, in step S360, the RealMode determination unit 25 issues a stop to the DVD recorder 35 because the PrimaryMode input from the PrimaryMode generation unit 24 is STOP. In step S370, the DVD recorder 35 stops recording and the status is stopped.

  Next, in step S380, since the status of the DVD recorder 35 is the recording system, the ModeStatus generating unit 27 adopts the status from the DVD recorder 35 as the status in response to the inquiry from the VTR remote controller 4, and outputs it to the Status command response unit 26. To do. In step S390, the VTR remote controller 4 issues a status sense. In step S400, the Status command response unit 26 outputs the status (stop) from the DVD recorder 35 to the VTR remote controller 4 as the status. In step S410, the VTR remote controller 4 recognizes that the mode of the recording apparatus 2 has been stopped.

  As described above, the recording apparatus according to the present embodiment includes the ImaginaryMode generation unit 24, the Imaginary TTC generation unit 28, and the Imaginary ATN generation unit 29. The Imaginary TTC and the Imaginary ATN are the AV for DV transmitted from the VTR remote controller 4. In response to the status sense, time code inquiry, and track number inquiry from the VTR remote controller 4, the recording apparatus 2 returns ImaginaryMode, ImaginaryTTC, and ImaginaryATN, respectively. Depending on whether the mode sent by the / C command is a recording system or a playback system, the stream data sent from the VTR1 is input when the recording system is used. Illusion and DV device is operatively connected, it performs the cue-up operation or the like of the virtual, recognizes that copy ready to virtual VTR is completed, performs a normal copying operation.

Although the present embodiment has been described using a DVD recorder, the gist of the present invention is applicable to other storage devices capable of random access recording without the concept of time code.
Further, the VTR remote controller 4 has been described as a control method using a signal defined in RS422 or RS232C as an interface. Similarly, the above-described control can be performed using a DV interface used for DV as a VTR remote controller.
Furthermore, Imagineary ATN has been described as a virtual track number. The track number includes an absolute track number in which a track on the tape is absolutely determined and a relative track number in which a serial number from the time of tape insertion is determined. The virtual track number is a virtual track number, and the number is applied to both an absolute number and a relative number.

  As described above, according to the recording apparatus shown in the present embodiment, the control command analyzing means (23) for receiving and analyzing the control command, and the cue-up mode is generated based on the analysis result in the control command analyzing means. Mode means (27) for generating, a time code generator means (28) for generating a virtual time code corresponding to the cue-up mode, and a track number generator means (29) for generating a virtual track number corresponding to the cue-up mode. And a control circuit (21) comprising a status command response means (26) for outputting a cue-up mode, the virtual time code and the virtual track number in response to a status sense command. VTR against (2) With the control from the remote controller for VTR (4) having the control function of 1), the content recorded on the VTR can be easily recorded on the optical disc with stable operation, high-speed processing and high-quality finish with simple operation. Can be realized.

  The present invention can be applied to a recording apparatus that records video and audio data recorded on a VTR and managed by a time code on a recording medium managed by an address such as a DVD.

FIG. 3 is a connection diagram of a recording apparatus, a VTR, and a remote controller according to an embodiment of the present invention. It is a block diagram which shows the structural example of the principal part of the recording device which concerns on implementation of this invention. It is a figure which shows the process of the RealMode discrimination | determination part. It is a figure which shows the process of ImaginaryTTC production | generation part. It is a figure which shows the process of ImaginaryATN production | generation part. FIG. 10 is a diagram (part 1) illustrating an example of a command sequence for performing a VTR emulation operation; FIG. 10 is a second diagram illustrating an example of a command sequence for performing a VTR emulation operation; FIG. 10 is a diagram (No. 3) illustrating an example of a command sequence for performing a VTR emulation operation;

Explanation of symbols

1 VTR
2 Recording Device 4 VTR Remote Controller 21 Control Circuit 22 Control System Processing Unit 23 Control Command Analysis Unit 24 ImaginaryMode Generation Unit 25 RealMode Determination Unit 26 Status Command Response Unit 27 ModeStatus Generation Unit 28 Imaginary TTC Generation Unit 29 Imaginary ATN Generation Unit 35 DVD Recorder

Claims (1)

A recorder for recording a video / audio signal recorded on a VTR by a control command and a status sense command output from a remote control unit on an optical disc, and a recorder for recording the video / audio signal by the control command and the status sense command. A recording device having a control circuit for generating a signal,
The control circuit includes:
Control command analysis means for receiving and analyzing the control command;
Mode means for generating a cue-up mode based on an analysis result in the control command analysis means;
Time code generator means for generating a virtual time code corresponding to the cue-up mode;
Track number generator means for generating a virtual track number corresponding to the cue-up mode;
Status command response means for outputting a cue-up mode, the virtual time code and the virtual track number in response to the status sense command;
A recording apparatus comprising:

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