JP2002352487A - Tape dubbing method and system, and information recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To grasp the operating state of each VCR, and to make automatic dubbing from one or more arbitrary VCRs to one or more VCRs in a flexible system configuration which is easy to exchange or select playback VCRs and recording VCRs. SOLUTION: One or more VCRs 10A to 10K having two-way communication function by IEEE1394 serial busses which can transmit control signals and information signals at the same time and a control computer 20 are connected with a 1394 repeater hub 40 through 1394 cables 30. Defining the attributes of each VCRs 10A-10K on a GUI screen by the above-mentioned computer 20, tape dubbing is automatically performed from one or more sets of VCRs to other one or more VCRs.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to, for example, IEEE-
1394-compliant serial bus (hereinafter IEEE 139)
A plurality of video tape recorders (VTRs) connected by a communication control bus that can transmit a control signal and an information signal in a mixed manner such as a 4 serial bus.
order) or the equivalent video and audio recording / reproducing device is connected, and the dedicated controller performs intensive control.
From one or more VTRs to multiple or one VTRs
The present invention relates to a tape dubbing method, a tape dubbing system, and an information recording medium for automatically dubbing.

[0002]

2. Description of the Related Art Conventionally, in a simultaneous tape dubbing system for performing simultaneous dubbing by connecting a plurality of recorder VTRs to a player VTR, for example, as shown in FIG. Distribution device 210 which also serves as a controller for distribution to
, Video and audio are supplied from the player VTR 220 to the recorder VTR group 230 as analog signals.

In order to control each VTR according to a desired timing, a protocol such as control S or control P is used in the case of a wired connection.
In a small-scale copy system, an infrared controller or the like was used in some cases.

[0004] Since the control using the control S, the control P, or the infrared ray is a one-way control from the controller to the VTR, it is generally not possible to know the state of the VTR. In order to inspect up to the state of VTR,
RS-422A and RS-232 for bidirectional control
C, LANC, etc. may be used, but since these protocols assume a one-to-one connection between the controller and the VTR, a lot of effort is needed to communicate with multiple recorder VTRs. Becomes

[0005] In any case, the connection to the VTR requires video, audio, and control, and in some cases, a time code signal connection is required (including the same code as the original tape, including the time code). If you have a request to copy).

Since the direction of signal flow is determined as a property of analog signals, the player VTR 220
And the recorder VTR 230 need to be explicitly distinguished. If a player records a VTR from the recorder to the player, all connections to the VTR must be changed.

Further, usually, after the copy is completed, a step of checking the quality of the completed tape is performed. In the conventional method, the tape 240 is ejected, and a person performs a check on the monitor VTR 250 one by one using the monitor television receiver 260 and the speaker 270.

[0008]

The conventional dubbing system 200 having the above-described configuration has the following problems. 1. The amount of wiring for connecting a plurality of VTRs is large. 2. Signal distribution generally requires expensive signal distribution equipment. 3. A dedicated controller is required to perform bidirectional communication in order to grasp the operating state of each VTR. 4. Since the system configuration is determined by the connection between a plurality of VTRs, it is not easy to switch or select the player VTR and the recorder VTR. 5. A human visual inspection is required for tape inspection.

[0009] In view of the above-mentioned conventional problems, the present invention can grasp the operating state of each VTR.
A flexible system configuration that allows the player VTR and the recorder VTR to be easily replaced and selected. The system can be easily changed from one or more VTRs to another or one VTR.
Another object of the present invention is to provide a tape dubbing method, a tape dubbing system, and an information recording medium that can automatically perform dubbing.

[0010]

According to the present invention, the IEEE 1
A plurality of video tape recorders (VTR: Video Tape Recorder) or equivalent video and audio recording / reproducing devices are connected to a communication control bus such as a 394 serial bus that can mix control signals and information signals. Then, a dedicated controller performs intensive control, and dubbing is automatically performed from any one or a plurality of VTRs to a plurality of or one VTR.

That is, in the tape dubbing method according to the present invention, a plurality of recording / reproducing apparatuses and a control apparatus having a two-way communication function by a communication control bus capable of transmitting a control signal and an information signal in a mixed manner are controlled by the communication control. Connected via a bus, the control device defines the attributes of each recording / reproducing device on a GUI screen, and one or more recording / reproducing devices to another plurality or one recording / reproducing device. It is characterized in that the information signal is automatically tape-dubbed to the device.

Further, the tape dubbing system according to the present invention comprises a plurality of recording / reproducing devices and a control device having a two-way communication function by a communication control bus capable of transmitting a control signal and an information signal in a mixed manner. The control device defines the attributes of each recording / reproducing device on a GUI screen, and connects one or more recording / reproducing devices to another plurality or one The recording / reproducing apparatus has a control function of automatically dubbing an information signal.

Further, the present invention connects a plurality of recording / reproducing devices having a bidirectional communication function by a communication control bus capable of transmitting a control signal and an information signal in a mixed manner, and a control device via the communication control bus. An information recording medium in which a tape dubbing control program in a tape dubbing system is recorded, wherein one or more recording / reproducing devices are defined by defining an attribute of each recording / reproducing device on a GUI screen by the control device. A tape dubbing control program characterized in that an information signal is automatically tape-dubbed to another or one or more recording / reproducing apparatuses.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings.

The present invention is applied to, for example, a dubbing system 100 configured as shown in FIG.

In this dubbing system 100, a plurality of VTRs 10A to 10K each having a communication function using a serial bus conforming to IEEE 1394 are connected to a computer 20 via a 1394 cable 30 to a 1394 repeater hub 40. ~ 1
The monitor television receiver 50 is connected to one of the 0Ks (VTR 10A in this example). Each VTR 10
The 1394 cables 30 between the computers A to 10K and the computer 20 are connected in a star shape or a tree shape according to the IEEE 1394 regulations using the 1394 repeater hub 40 in accordance with the number of connected 1394 cables.

According to IEEE 1394 regulations, up to 63 devices can be connected to one bus.

In the dubbing system 100, the computer 20 can be used as a system controller, and up to 62 VTRs can be connected as a deck.

Further, by connecting the monitor television receiver 50 to any one of the decks (VTR 10A in this example), the EE display function of all the decks can be used via the 1394 serial bus. It is possible to check tape playback.

In the dubbing system 100, the VTR
As a commercial deck in DVCAM format. This deck is equipped with a function to automatically discriminate and copy according to the destination (NTSC or PAL) of the data sent from the 1394 serial bus, and one system without discrimination between NTSC / PAL. It is possible to support both systems. The monitor television receiver 50 for checking a tape image is also compatible with both types and is used for many business purposes.

The 1394 serial bus is connected to each VTR 10A.
Since it is equivalent to 10 to 10K, the user can freely select which VTR is selected as the player. That is, in the dubbing system 100, each attribute of the VTRs 10A to 10K is arbitrarily defined by the computer 20, which is a system controller, and one or more player VTRs are automatically transferred to another plurality or one recorder VTR. Tape dubbing can be performed effectively.

Incidentally, even if the control of each VTR is performed by the control S, the control P, the infrared ray, etc. without connecting the computer 20, the video / video is controlled by the 1394 serial bus.
Distributing audio requires reducing the amount of wiring and the player VTR
This is effective because there is a merit that the selection of the recorder VTR becomes easy.

As shown in FIG. 2, the transmission of signals in the dubbing system 100 is performed by time division multiplexing every predetermined communication cycle (for example, 125 μsec). The transmission of this signal is started when a device called a cycle master sends a cycle start packet to the IEEE 1394 serial bus indicating that a communication cycle has started. Note that the cycle master is automatically determined by a procedure defined in IEEE-1394 when each device is connected by an IEEE 1394 serial bus cable.

The form of communication during one communication cycle is as follows:
There are two types of communication: iso communication in which information signals such as video signals and audio signals are transmitted isochronously, and asynchronous communication in which control signals such as connection control commands are transmitted asynchronously. Then, the Iso packet is transmitted before the Async packet. By assigning channel numbers 1, 2, 3,... N to each Iso packet, a plurality of Iso data can be distinguished. Is
After the transmission of the o packet is completed, a period until the next cycle start packet is used for transmitting the Async packet.

In the dubbing system 100, the IEEE
The VTRs 10A to 10K are uniformly controlled from the computer 20 through the E1394 serial bus.

In recent years, personal computers have become inexpensive and many models have a standard IEEE 1394 connector. Therefore, by using a personal computer as the computer 20 for system control, dubbing of a large number of units, which conventionally required a large-scale system construction, can be performed by a deck, a 1394 cable, and a 1394.
It can be realized only with a repeater hub and a personal computer.

In the dubbing system 100, the IEEE
With the configuration in which the VTRs are uniformly controlled from the computer 20 via the E1394 serial bus, the following can be achieved.

A) Since the IEEE 1394 serial bus is a bidirectional bus, the computer 20 can know the status of each VTR.

B) Since video data and audio data also flow on the bus, the data can be stored in the computer 20.

C) The video data and audio data stored in the computer 20 can be copied to a tape.

D) The computer 20 can know the state of the connection and disconnection of the 1394 cable.

In the dubbing system 100, the computer 20 functioning as a system controller
Displays a GUI screen 25 having various operation buttons 21A to 21I, a player time code display unit 22, and various boxes 23A to 23G on a monitor screen 27 as shown in FIG. 3 by activating the software.

Here, the player selection button 21A on this GUI screen 25 is displayed by selecting one V
A button for selecting a TR. Pressing this button registers the player as a player VTR.

The player control button 21B is a tape running control button of the player VTR, and includes a REW button, a PLAY button, an FF button, a STOP button, and a STILL button.

The recorder control button 21C is a tape running control button for one VTR selected in the recorder list, and includes a REW button, a PLAY button, an FF button, a STOP button, and a STOP button.

The recorder group control button 21D is
A tape running control button for simultaneously controlling the entire VTR registered in the recorder list,
REC_P ALL button, REC ALL button, E
JECT ALL button, REW ALL button, PB
ALL button, FF ALL button and STOPAL
It consists of an L button.

The AUTO radio button 21E is
A mode setting button. Pressing this button sets the AUTO mode. In the AUTO mode, copying is started after all VTRs of the player and the recorder group have been rewound to the tape top.

The MANUAL radio button 21F is
This is a setting button for the normal mode. Pressing this button sets the normal mode. MANUA
In the L mode, copying is started from the position where the tape is currently stopped.

The dubbing start button 21G is a tape copying start button. Pressing this button starts tape copying.

The dubbing stop button 21H is a tape copy stop button. Pressing this button stops the tape copy.

The inspection time change spin button 21I is a button for changing the inspection time. Pressing this button changes the inspection time.

The player time code display section 22 displays the time code of the player VTR.

Further, the recorder selection list box 23
A lists the recorder VTRs connected to the 1394 serial bus. The node unique number, the presence or absence of the cassette, the presence or absence of the cassette memory, the tape length read from the cassette memory information, and the like are displayed.

The player box 23B displays the selected player VTR.

The CM check box 23C is a check box for determining whether or not to copy the contents of the cassette memory. When this box is turned on, the contents of the cassette memory are also copied.

The EJECT ALL valid selection check box 23D is a selection button for determining whether or not to validate the EJECT ALL button. When this box is on, the EJECT ALL button is validated.

The check boxes 23E to 23G are buttons for selecting an operation after the tape copy.
When the WIND check box 23E is ON, after copying is completed, the tape is rewound to the beginning and the AUTO
When the EJECT check box 23F is turned on, the tape is automatically ejected after the copy is completed, and furthermore,
TAPE Q. C. When the check box 23G is turned on, the recorder tape is played back after the copy is completed, and a check is made to confirm whether or not the copy has been correctly performed.

The check boxes 23H to 23J are selection buttons for designating how long the above-mentioned confirmation inspection should be performed.
When H is on, check the head of the tape,
When the MID check box 23I is on, the vicinity of the center of the tape is checked, and when the END check box 23J is on, the vicinity of the end of recording is checked.

That is, in the dubbing system 100, the computer 20 displays the GUI screen 25 and controls each of the VTRs 10A to 10K as follows.

When the software is started, the computer 20 registers the decks connected to the 1394 serial bus in a list, and makes the recorder selection list box 2
Display on 3A. The list also displays the node unique number, the presence / absence of a tape, the presence / absence of a cassette memory, and if a cassette memory is installed, the recording time of the tape that could be read therefrom.

When the software is started, the computer 20 performs an initialization process according to the procedure shown in the flowchart of FIG.

That is, when the software is started, the computer 20 records the node unique ID of the deck selected as the player at the time of ending the previous program in the initialization file or the registry in step S1. Read from the set value and store it.

In the next step S2, an inquiry about a device connected to the 1394 serial bus is started.

In the next step S3, an inquiry is made for the node unique ID of the deck. This node unique I
Inquiry of D is ASYNC of 1394 serial bus
This is performed by reading the Config ROM using a command.

In the next step S4, the node unique I
The manufacturer name is specified from D.

In the next step S5, the node unique I
Specify the deck name from D.

In the next step S6, the node unique I
Identify the serial number from D.

In the next step S7, an inquiry is made as to whether or not there is a cassette and a cassette memory.

Then, in the next step S8, the presence or absence of a cassette memory is determined. If the result of determination in step S8 is that there is no cassette memory, step S1
The process proceeds to 0, and if there is a cassette memory, an inquiry is made for cassette memory information (tape length, memory capacity, tape thickness, material, grade) in the next step S9. Reading the contents of the cassette memory is performed by AV / C (Audio) of the 1394 serial bus.
(Video / Control) command.

In the next step S10, it is determined whether or not the same node unique ID as that of the deck selected as the player at the time when the previous program was terminated.

If the result of the determination in step S10 is NO, that is, if the node unique ID is different, the process proceeds to step S12. If the result of the determination is YES, that is, the node unique ID is the same, the process proceeds to step S11. The box 23B displays the manufacturer name, deck name, serial number, cassette presence / absence, and cassette memory information.

In the next step S12, a maker name, deck name, serial number, cassette presence / absence, and cassette memory information are additionally displayed in the recorder selection list box 23A. Thus, the recorders are listed in the recorder selection list box 23A.

In the next step S13, it is determined whether or not the inquiry to all the decks has been completed.

If the decision result in the step S13 is NO, that is, if there is still a deck to be inquired, the process returns to the step S2, and the processes of the steps S2 to S13 are sequentially repeated for the next deck. When the result of the determination is YES, that is, when inquiries have been completed for all decks, the initialization processing ends.

Here, since the 1394 serial bus is equivalent to any VTR, it is possible to freely select a VTR to be used as a player from a list.

Therefore, the computer 20 in the dubbing system 100 performs a player selection process according to the procedure shown in the flowchart of FIG.

That is, when the player selection button 21A is pressed in step S21, the computer 20 determines in next step S22 whether or not the player box 23B is empty.

If the result of determination in step S22 is Y
If the ES, that is, the player box 23B is empty and the player has not been registered yet, the process proceeds to step S24. If the determination result is NO, that is, if the player has already been registered, the player is registered as a player in the next step S23. Is added to the recorder selection list box 23A.

Then, in the next step S24, the deck selected in the recorder selection list box 23A is
It moves to the player box 23B and newly registers.

Further, in the next step S25, the player selection list box 23A
The deck moved to 3B is deleted, and the player selection processing ends.

In the dubbing system 100,
At the end of the program, the node unique ID of the deck registered in the player box 23B is stored in the program initialization file (INI file) or the registry. When the program is started for the second time or later, the information is read, and if the same deck as the stored ID exists on the 1394 serial bus, the VTR is automatically loaded into the player box. I try to register.

In the dubbing system 100,
Although only one player VTR can be selected, it is possible as an extended function to select a plurality of players and copy a tape while sequentially playing back the tapes, unless they are played back simultaneously.

In the dubbing system 100, a GUI screen 25 is displayed for a VTR selected as a player.
A player time code display section 22 for displaying the current time code is provided above, and a player control button 21B for controlling the tape is provided below the player time code display section 22.

As with the player, a player control button 21C for tape control is prepared for one of the recorders selected from the list in the recorder VTR group.

Further, a recorder group control button 21D for simultaneously controlling the entire recorder VTR is arranged below the list of recorder groups.

Here, the recorder group control button 2
Regarding simultaneous execution processing by 1D operation, REC AL
An example in which the L button is pressed will be described with reference to the flowchart shown in FIG.

That is, when the REC ALL button of the recorder group control button 21D is pressed (step S31), the computer 20 in the dubbing system 100 selects the first unit of the recorder selection list box 23A as a control target (step S32). A REC (record) command is issued to the deck to be controlled (step S33), and a 1394 AV / C command is used as the command.

Then, the computer 20 determines whether or not all the REC commands have been issued to the recorder (step S34).

If the determination result in step S34 is N
O, that is, when there is a recorder to which a REC command is to be issued, the recorder to be controlled is moved to the next deck in the recorder selection list box 23A (step S35), and the process returns to step S33 to return to the next deck. The processes of steps S33 to S35 are sequentially and repeatedly performed.

Then, if the decision result in the above step S34 is YES, that is, if the REC command is issued to all the recorders, the processing for the entire recorder group ends.

REC-P ALL, EJECT AL
L, REW ALL, PB ALL, FF ALL, S
The processing when each button of TOP ALL is pressed is the same as the above procedure, only by changing the AV / C command of the 1394 serial bus to be issued.

During automatic dubbing, which will be described later,
The processing for the recorder group is the same as the above procedure.

The inquiry of the deck status for the entire recorder group is also performed according to the above-described procedure using the inquiry command of the 1394 AV / C command.

In actual tape copying, it is possible to manually reproduce the player VTR and record the recorder VTRs at the same time. However, the dubbing system 100 is for automatically performing the procedure. Equipped with automatic dubbing control function.

That is, the computer 20 in the dubbing system 100 has a dubbing start button 2
When 1G is pressed, as shown in the flowchart of FIG. 7, the pre-dubbing inspection process (step A), the actual dubbing process (step B), the post-dubbing inspection process 1 (step C), and the post-dubbing inspection process 2 (step D), processing for automatic dubbing is performed in the order of post-dubbing inspection processing 3 (step E), and dubbing end processing (step F).

In the pre-dubbing inspection process (step A), a process is performed according to the procedure shown in the flowchart of FIG.

That is, the dubbing start button 21G
Is pressed, the pre-dubbing inspection process starts (step A).
1) First, it is determined whether or not a player has been registered (step A2).

If the decision result in step A2 is NO
That is, if the player has not been registered, the process proceeds to step A9. If the determination result is YES, that is, if the player has been registered, it is determined whether at least one recorder has been registered in the recorder selection list box 23A. Is determined (step A3).

If the decision result in step A3 is NO
That is, if the recorder has not been registered, the process proceeds to step A9, and if the determination result is YES, that is, if the recorder has been registered, it is determined whether or not a tape is mounted on the player (step A4).

If the decision result in step A4 is NO
That is, when the tape is not mounted on the player, the process proceeds to step A9, and when the determination result is YES, that is, when the tape is mounted on the player, it is determined whether the tape is mounted on the recorder ( Step A5). The determination process in step A5 is performed when a warning is set when a tape is not mounted on the recorder.

If the decision result in step A5 is NO
That is, when the tape is not mounted on the recorder, the process proceeds to step A9. When the determination result is YES, that is, when the tape is mounted on the recorder, the erroneous recording prevention knob of the recorder tape is set to the “recordable” side. It is determined whether or not it is set (step A6).

If the decision result in step A6 is NO
That is, if recording is not possible, the process proceeds to step A9,
If the result of the determination is YES, that is, if recording is possible, it is determined whether or not the tape length of the recorder is the same as or longer than the player (step A7). This step A
The determination process of 7 is performed when a tape length check is specified.

If the decision result in step A7 is NO
That is, if the recorder has a short tape length, step A
If the result of the determination is YES, that is, if the tape length is the same (long), it is determined whether or not the recorder has a cassette memory and the capacity is sufficient (step A).
8). The determination process in step A8 is performed when a cassette memory copy is specified.

If the decision result in step A8 is NO
That is, when the capacity of the cassette memory is small, a message corresponding to the error is displayed and the dubbing process is interrupted (step A9), and the judgment result is YES, that is, the capacity of the cassette memory is sufficient (same or large). )
If it is, the process proceeds to the actual dubbing process (step B), and the actual dubbing process is started (step B1).

Then, in the actual dubbing process (step B), the process according to the procedure shown in the flowchart of FIG. 9 is performed.

That is, when the pre-dubbing inspection process (step A) is completed and the actual dubbing process is started (step B1), it is first determined whether or not the AUTO radio button 21E is selected (step B2). .

If the decision result in the step B2 is NO, that is, if the AUTO radio button 21E is not selected and the manual operation is selected, a step B7 is executed.
To start dubbing immediately from the current position, and if the determination result is YES, that is, AUTO radio button 2
If 1E has been selected, a REW command is sent to the player (step B3). Commands are issued to the deck using AV / C commands of the 1394 serial bus (the same applies hereinafter).

Next, a REW command is sent to the recorder group (step B4).

Then, it is determined whether or not the player and the recorder group have reached the top of the tape (step B5). The inquiry about the tape running state of the deck is made by using the AV / C command of the 1394 serial bus (the same applies hereinafter).

If the decision result in step B5 is NO
That is, if the tape has not reached the tape top, the process waits until the tape has reached the tape top, or if the tape has not reached the tape top and the deck is not in the REW state, the process returns to step B3 to send the REW command again.

If the result of the determination in step B5 is YES, that is, if the tape has reached the tape top, it is determined whether or not the dubbing start condition is the start time code position of the designated player (step B6).

If the decision result in step B6 is NO
That is, if the start time code position of the player has not been designated, the REC command is immediately sent to the recorder group (step B7), and the RLA is sent to the player.
A Y command is transmitted (step B8) to start dubbing.

If the result of the determination in step B6 is YES, that is, if the start time code position of the player has been designated, the REC PAUS
An E command is sent (step B9), and an RLAY command is sent to the player (step B10).

Then, it is determined whether or not the player has passed the designated time code position (step B11). If the decision result in the step B11 is NO, the decision processing in the step B11 is repeated to wait for the dubbing start condition to be satisfied. When the decision result is YES, that is, when the player has passed the designated time code position, the REC is added to the recorder group. A command is transmitted (step B12) to start dubbing.

When dubbing is started in this way, it is next determined whether or not the dubbing stop button 21H has been pressed (step B13).

The determination result in step B13 is YE
S: When the dubbing stop button 21H is pressed, the process proceeds to step B20, where STOP is sent to the player and the recorder group to stop dubbing, and when the determination result is NO, that is, when the dubbing stop button 21H is not pressed. Then, it is determined whether or not the player has entered a state other than PLAY (step B14).

If the determination result in step B14 is Y
If ES, that is, if the player has entered a state other than PLAY, the process proceeds to step B23. If the determination result is NO, that is, if the player is in the reproducing state, the player's image, sound, It is determined whether the time code cannot be detected (step B15).

If the decision result in this step B15 is Y
ES, that is, the image of the player for a time longer than specified,
If the voice and time code cannot be detected, it is determined to be the non-recording part and the process proceeds to the determination step B23. It is determined whether or not the specified end time code has been reached (step B1).
6).

If the decision result in this step B162 is YES, that is, if the player has reached the end time code designated by the menu, the process proceeds to step B23, and if the decision result is NO, that is, the end time code designated by the player in the menu is reached. If not reached, it is determined whether or not the decks of the recorder group have entered a state other than recording (step B17).

When the result of the determination in step B17 is N
If O, that is, the recording state is maintained, the flow returns to step B13 to continue the state inspection during dubbing. If the determination result is YES, that is, the state is other than recording, an error message is displayed. (Step B18). In the message box, a “continue dubbing” button and a “suspend dubbing” button are arranged.

Then, it is determined whether the dubbing continuation button or the dubbing interruption button has been pressed (step B19).

If the result of determination in step B19 is that the dubbing continuation button has been selected, the above-described step B
Returning to step 13, the state inspection during dubbing is continuously performed, and when the determination result indicates that the dubbing interruption button is pressed, a STOP command is transmitted to the player (step B20).

Further, a STOP command is sent to the recorder group (step B21), and dubbing is interrupted (step B22).

If the determination result in any one of the steps B10 to B16 is YES, it is determined whether or not the CM copy check box 23C is selected (step B23).

If the determination result in step B23 is N
O, that is, if the CM copy check box 23C is not selected, the process proceeds to the post-dubbing inspection process 1 (step C) to start the post-dubbing inspection process (step C).
1) If the determination result is YES, that is, if the CM copy check box 23C is selected, dubbing processing of the cassette memory is performed (step B2).
4) The process proceeds to the post-dubbing inspection process 1 (step C) to start the post-dubbing inspection process (step C1).

This post-dubbing inspection process 1 (step C)
Then, the processing according to the procedure shown in the flowchart of FIG. 10 is performed.

That is, actual dubbing processing (step B)
When the post-dubbing inspection process 1 is started (step C1), a STOP command is first sent to the player (step C2), and then a STOP command is sent to the player (step C3).

And, TAPE Q. C. It is determined whether the check box 23G is selected (step C4).

If the decision result in step C4 is NO
That is, TAPE Q. C. If the check box 23G is not selected, the process proceeds to the dubbing end process (step F), and the determination result is YES, that is, TAP
EQ. C. If the check box 23G is selected, the TAPE Q. It is determined whether or not the END check box 23J of C is selected (step C
5).

If the decision result in step C5 is NO
That is, TAPE Q. C END check box 2
If 3J is not selected, the process proceeds to post-dubbing inspection process 2 (step D), and the determination result is YES, that is, T
APE Q. When the END check box 23J of C is selected, a search command for the dubbing end point is issued to the player, and the video and audio data of the corresponding portion is taken into the computer 20 (step C6). That is, a playback command is issued to the player, and the transmitted 1394 stream is taken into the computer 20. Then, after the capture is completed, a STOP command is issued to the player to stop the player. The capturing time is the length specified by the inspection time spin button 21I.

Next, the recorder selection list box 23A
Is selected as a control target (step C7).

Next, the deck to be controlled is rewound a little before the inspection position (step C8).

Next, a reproduction command is issued to the inspection target deck (step C9).

Next, the reproduction data of the inspection target portion is read by the computer 20 for the inspection time and compared with the player data stored in advance (step C).
10). That is, a playback command is issued to the recorder,
Transmits the transmitted 1394 stream to the computer 20
And compare the captured data. After the capture, a STOP command is issued to the recorder to stop it.

Then, as a result of the comparison, it is determined whether or not the data is the same (step C11).

If the determination result in step C11 is Y
If dubbing is successful with the same ES, that is, data,
Proceeding to step C13, if the determination result is NO, that is, if the data is different, a message indicating that the data is different is displayed (step C12).

Next, the recorder selection list box 23A
It is determined whether the inspection of all the decks registered in is completed. (Step C13).

If the result of the determination in step C13 is N
O, that is, if there is still a deck to be inspected, the next deck in the recorder selection list box 23A is selected as a control target (step C14), and the process returns to step C8, where the next deck is step C8.
To C14 are sequentially repeated.

If the result of the determination in step C13 is YES, that is, if all decks have been inspected, the flow proceeds to post-dubbing inspection processing 2 (step D).

This post-dubbing inspection process 2 (step D)
Then, the processing according to the procedure shown in the flowchart of FIG. 11 is performed.

That is, after the post-dubbing inspection process 1 (step C) is completed and the post-dubbing inspection process 2 (step D) is entered, first, the TAPE Q. C. It is determined whether the MID check box 23I is selected (step D1).

If the decision result in the step D1 is NO, that is, if TAPE Q. C. If the MID check box 23I is not selected, the process proceeds to post-dubbing inspection process 3 (step E), and the determination result is YES.
That is, TAPE Q. C. If the MID check box 23I is selected, a search command for the dubbing start point is issued to the player,
The video and audio data of the corresponding part is taken into the computer 20. That is, a playback command is issued to the player, and the transmitted 1394 stream is taken into the computer 20. After the capture is completed, the STOP command is issued to the player to stop the player. The capturing time is the length specified by the inspection time spin button 21I.

Next, the recorder selection list box 23A
Is selected as a control target (step D3).

Next, the deck to be controlled is rewound to near the inspection position (dubbing start position) (step D).
4).

Next, a playback command is issued to the deck to be inspected (step D5).

Next, the reproduction data of the portion to be inspected is read by the computer 20 for the inspection time and compared with the player data stored in advance. That is,
A playback command is issued to the recorder and transmitted.
The 94 streams are taken into the computer 20 and the data is compared. After the capture, a STOP command is issued to the recorder to stop it.

As a result of the comparison, it is determined whether or not the data is the same (step D7).

The result of determination in step D7 is YE
If S, that is, if the data is the same and dubbing is successful, the process proceeds to step D9. If the determination result is NO, that is, the data is different, a message indicating that the data is different is displayed (step D8).

Next, the recorder selection list box 23A
It is determined whether the inspection of all the decks registered in is completed. (Step D9).

If the decision result in step D9 is NO
In other words, if there are still decks to be inspected,
The next deck in the recorder selection list box 23A is selected as an object to be controlled (step D10), and the process returns to step D4 to return to steps D4 to D for the next deck.
Step 10 is repeated sequentially.

If the result of the determination in step D9 is YES, that is, if all the decks have been inspected, the flow proceeds to post-dubbing inspection processing 3 (step E).

This post-dubbing inspection process 3 (step E)
Then, the processing according to the procedure shown in the flowchart of FIG. 12 is performed.

That is, after the post-dubbing inspection process 2 (step D) is completed and the post-dubbing inspection process 3 (step E) is entered, the TAPE Q. C. It is determined whether or not the TOP check box 23H is selected (step E1).

If the decision result in the step E1 is NO, that is, if TAPE Q. C. If the TOP check box 23H is not selected, the process proceeds to dubbing end processing (step F), and the determination result is YES, that is, TAPE Q. C. TOP check box 23
When H is selected, a search command for the dubbing center point is issued to the player, and the video and audio data of the corresponding portion is taken into the computer 20. That is, a playback command is issued to the player, and the transmitted 1394 stream is taken into the computer 20. After the capture is completed, the STOP command is issued to the player to stop the player. The capturing time is the length specified by the inspection time spin button 21I.

Next, the recorder selection list box 23A
Is selected as a control target (step E3).

Next, the deck to be controlled is rewound to a position slightly before the inspection position (the dubbing center position) (step E4).

Next, a playback command is issued to the inspection target deck (step E5).

Next, the reproduced data of the portion to be inspected is read by the computer 20 for the inspection time and compared with the player data stored in advance. That is,
A playback command is issued to the recorder and transmitted.
The 94 streams are taken into the computer 20 and the data is compared. After the capture, a STOP command is issued to the recorder to stop it.

Then, as a result of the comparison, it is determined whether or not the data is the same (step E7).

The result of determination at step E7 is YE
If S, that is, if the data is the same and dubbing is successful, the process proceeds to step E9. If the determination result is NO, that is, if the data is different, a message indicating that the data is different is displayed (step E8).

Next, the recorder selection list box 23A
It is determined whether the inspection of all the decks registered in is completed. (Step E9).

If the decision result in step E9 is NO
In other words, if there are still decks to be inspected,
The next deck in the recorder selection list box 23A is selected as a control target (step E10), and the process returns to step E4, where the steps E4 to E for the next deck are performed.
Step 10 is repeated sequentially.

If the result of the determination in step E9 is YES, that is, if all the decks have been inspected, the process proceeds to dubbing end processing (step F).

In the dubbing end processing (step F), processing according to the procedure shown in the flowchart of FIG. 13 is performed.

That is, after the end of the dubbing inspection process 3 (step E) and the start of the dubbing end process (step F), it is first determined whether or not the AUTO REWIND check box 23E is selected (step F1). ).

If the decision result in the step F1 is NO, that is, if the AUTO REWIND check box 23E is not selected, the process proceeds to a step F4, and the decision result is YES, that is, the AUTO REREW.
If the WIND check box 23E is selected, a rewind command is issued to the recorder group (step F2).

Next, it is determined whether or not the tape has hit the top (step F3).

If the decision result in the step F3 is NO, that is, if rewinding is still in progress, the step F3 is executed.
3 is repeated, and if the determination result is YES, that is, the tape is top, the AUTO Eject check box 2
It is determined whether or not 3F is selected (step F
4).

If the decision result in the step F4 is NO, that is, if the AUTO Eject check box 23F is not selected, the dubbing end processing is completed, and if the decision result is YES, that is, the AUTO is completed.
If the EJECT check box 23F has been selected, a recorder group tape ejection command is issued (step F5), and then the dubbing end processing is completed.

That is, in the dubbing system 100, the dubbing start button 21G is a button for automatically performing the above-described procedure. By pressing the dubbing start button 21G, the player is set to the reproduction mode and the recorder group is set to the recording mode according to the following settings.
The dubbing start button 21H is a button that is pressed when the user wants to forcibly stop copying during copying.

The dubbing system 10 has the following functions for automatic control.

When the AUTO mode is selected,
After all the VTRs of the player and the recorder group are rewound to the tape top, copying is started.

Further, the recording start timing of the recorder can be selected from "simultaneously with player reproduction" and "time code value of specified player" by setting a menu. In many cases, the original tape attached to the player has a color bar for quality control, a reference audio signal, and the like recorded in the order of the tape. "Time code value" is also available.

When the MANUAL mode is selected, copying is started immediately from the position where the tape is currently raised.

If the check of "CM (cassette memory)" is ON, if the cassette memory is mounted on the tape of the player VTR after the copy of the tape is completed, the contents are copied to the tape of the recorder VTR. Is copied to the cassette memory.

Regarding the copy of the cassette memory, for the contents managed by the absolute track number,
It also has a function that automatically correlates the tape between the player's tape and the recorder's tape so that it has the correct track number as the recorder tape.

The conditions for ending copying are as follows: 1. When the player enters a state other than playback (for example, the tape end is reached and playback is stopped). 2. When the player VTR detects that a non-recorded portion is being reproduced for a certain period of time. It can be selected from when the end time code position of the player VTR tape set in the menu is reached.

The detection time of the non-recording state can be set in a menu.

Furthermore, in the dubbing system 10,
It monitors the status of the 1394 serial bus and issues a warning message when a cable is unplugged or plugged in, so it can detect unexpected accidents such as cable disconnection, which was difficult in the past. It is possible.

In addition, by setting the menu on the GUI screen 25: 1. When there is no tape in the recorder VTR 2. When the tape of the recorder VTR is in the erroneous erasure prevention state. 3. When cassette memory copy is specified even though no cassette memory is installed. 4. When the cassette memory capacity of the recorder tape is smaller than the cassette memory capacity of the player tape. 5. When the tape attached to the recorder is shorter than the length of the player tape. 6. When the player playback speed differs from the recorder recording speed setting. A warning can also be displayed when the number of connected VTRs is different from when the program was started last time.

Furthermore, the dubbing system 100
It has a function to automatically perform the following processing after copying is completed.

[0172] 1. If the AUTO REWIND check box 23E is turned on,
Automatically rewind tape to head.

2. If the auto eject check box 23F is turned on, the tape is automatically ejected after the copy is completed.

[0174] 3. TAPE Q. C. If the check box 23G is turned on, the quality of the tape is inspected after the copy is completed.

The quality inspection of the tape is performed by sequentially reproducing the tape with the tape attached to each of the recorders.
It is possible to check with the monitor television receiver 50 and the speaker connected to any one VTR connected on the serial bus. This dubbing system 100
In, the inspection location can be selected near the beginning of the tape, near the center, or near the end of the copy.

Further, a function of simultaneously performing an error check as digital data by utilizing the fact that video and audio data are flowing through the computer 20 is also provided.

Thus, the dubbing system 100
Then, since a human can check with a monitor television receiver and a speaker, and can automatically perform an error check with the computer 20, it is possible to perform a copying operation completely unattended. ing.

That is, as shown in FIG. 14, the method of data check in the dubbing system 100, the computer 20 functions as a tape inspection device after dubbing.

That is, first, during or after copying, video and audio data from the player VTR 10P are
Computer 2 for a specified time at a specified location
Store at 0. After the copy is completed, the positions corresponding to the data parts stored in the computer 20 are reproduced one by one from the recorder VTR group.

The computer 20 has a recorder VTR 10
By comparing data (images and sounds) reproduced by R with data previously captured from the player VTR 10P, it is possible to confirm whether or not copying has been correctly performed.

The digital image data in the DV format or DVCAM format is compressed,
If only data comparison is performed, it is possible to perform verification in a compressed state without decompressing the data into an actual video.
In particular, when a low-speed computer having a shortage of CPU power is employed in the present system, if a comparison can be made in a compressed state, a margin can be given to the processing time.

In this dubbing system 100, the recorder VTR 10R is also used as a VTR for inspection. However, there is no problem even if a dedicated deck for inspection is prepared as another system. In such a case, since the data is digital data, the tape data of the player is transferred to a personal computer for inspection via a network line or a storage device (removable hard disk, DVD-RAM, tape streamer), and the data is verified by the inspection system. It is also conceivable to perform the following.

As another method, when there are a plurality of original tapes used in the player, or when data can be taken in from the original tape by the inspection system in advance, the player tape is directly connected to the inspection device. It is of course possible to accumulate data from.

Further, if the VTR connected to the dubbing system 100 has a function of dubbing the time code from the 1394 terminal, dubbing including the time code is also performed automatically. There is also an advantage that no special wiring is required.

Although the dubbing system 100 according to the embodiment described above refers only to the DV or DVCAM digital video format, the same applies to the case where another data format device using a 1394 serial bus is connected. It is possible to apply the concept of For example, it is MPEG or dubbing of 1394 audio data.

In the dubbing system 100,
Although only one 1394 bus was used, computers,
Alternatively, in the case of a similar centralized control device having a plurality of buses, it is possible to connect more devices.

In the dubbing system 100,
It only supports dubbing from deck to deck,
Digital images and sounds stored in the computer can be copied to the deck. In this case, the present invention can be applied to a case where a tape material is once taken into a computer, nonlinear editing is performed there, and a large number of final works are simultaneously copied. In addition, since a plurality of decks are connected, there is an advantage that even when there are a plurality of material tapes, the capture can be performed without changing the tapes.

In addition to the 1394 serial bus,
USB with bus configuration 1. X, USB2. Even with X,
It is possible to build a copy system with a similar idea. With the current USB, high-quality moving images cannot be transferred, but high-speed transfer is also supported in version 2.0 or later. However, since USB requires a master device (a computer often plays the role) in some cases, it may be necessary to omit the contents realized by the 1394 serial bus for some functions. .

[0189]

As described above, according to the present invention, a plurality of recording / reproducing devices and a control device having a two-way communication function by a communication control bus capable of transmitting a control signal and an information signal in a mixed manner are provided. Connected via a communication control bus, the control device defines the attributes of each recording / reproducing device on a GUI screen, and one or a plurality of each recording / reproducing device to another plurality or one recording device. By automatically tape dubbing the information signal to the reproducing device, the operation state of each VTR can be grasped, and the player VTR and the recorder VTR can be grasped.
With a flexible system configuration that allows easy replacement and selection of data, dubbing can be automatically performed from any one or more VTRs to other multiple or one VTRs. According to the present invention, a highly-functional and fully automatic dubbing system can be easily constructed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a dubbing system to which the present invention has been applied.

FIG. 2 is a diagram illustrating an example of a data structure on a bus in a communication system using an IEEE 1394 serial bus.

FIG. 3 is a diagram schematically showing a configuration of a GUI screen displayed on a monitor screen of a computer by activating an application program in the dubbing system.

FIG. 4 is a flowchart showing a procedure of an initialization process executed by a computer in the dubbing system.

FIG. 5 is a flowchart showing a procedure of a player selection process executed by a computer in the dubbing system.

FIG. 6 is a flowchart showing a procedure of simultaneous execution processing executed by a computer in the dubbing system.

FIG. 7 is a flowchart showing a processing procedure for automatic dubbing executed by a computer in the dubbing system.

FIG. 8 is a flowchart showing a procedure of a pre-dubbing inspection process in the automatic dubbing process.

FIG. 9 is a flowchart showing a procedure of actual dubbing processing by the automatic dubbing processing apparatus.

FIG. 10 is a flowchart showing a procedure of post-dubbing inspection processing 1 in the automatic dubbing processing apparatus.

FIG. 11 is a flowchart showing a procedure of post-dubbing inspection processing 2 in the automatic dubbing processing apparatus.

FIG. 12 is a flowchart showing a procedure of post-dubbing inspection processing 3 in the automatic dubbing processing apparatus.

FIG. 13 is a flowchart showing a procedure of a dubbing end process in the automatic dubbing process.

FIG. 14 is a diagram schematically showing a data check method in the dubbing system.

FIG. 15 is a block diagram showing a configuration of a conventional dubbing system.

[Explanation of symbols]

10A-10K VTR, 10P Player VTR, 1
0R Recorder VTR, 20 Computer, 30 1
394 cable, 40 1394 repeater hub, 50
Monitor television receiver, 100 dubbing system, 21A-21I various operation buttons, 22 player time code display section, 23A-23G various boxes,
25 GUI screen, 27 monitor screen

Claims (11)

[Claims] 1. A plurality of recording / reproducing devices having a bidirectional communication function by a communication control bus capable of transmitting a control signal and an information signal in a mixed manner and a control device are connected via the communication control bus. The attributes of each recording / reproducing device are defined on the GUI screen by the device, and the information signal is automatically taped from one or more recording / reproducing devices to another plural or one recording / reproducing device. A tape dubbing method characterized by performing dubbing. 2. A plurality of recording / reproducing devices having a two-way communication function by a communication control bus capable of transmitting a control signal and an information signal in a mixed manner and a control device are connected via the communication control bus, The control device defines an attribute of each recording / reproducing device on the GUI screen, and automatically transmits information from one or more recording / reproducing devices to another plurality or one recording / reproducing device. A tape dubbing system having a control function of dubbing a signal. 3. The tape dubbing system according to claim 2, wherein the control device has a control function of dubbing the information signal after rewinding each recording / reproducing device to the head of the tape. 4. The tape dubbing system according to claim 2, wherein said control device has a control function of automatically rewinding each recording / reproducing device to the beginning of the tape after dubbing the information signal. 5. The tape dubbing system according to claim 2, wherein said control device has a control function of automatically ejecting each recording / reproducing device to a tape after dubbing an information signal. 6. The tape dubbing system according to claim 2, wherein the control device has an inspection function of automatically performing a tape inspection after dubbing the information signal. 7. The tape dubbing system according to claim 6, wherein the control device performs control to output a tape inspection output after dubbing the information signal to the monitor device. 8. The control device has a test function of storing data reproduced by a player at the time of dubbing in a storage means, and digitally verifying and testing data on the tape on the recorder side after dubbing. 7. The tape dubbing system according to claim 6, comprising: 9. A control function for dubbing an information signal after rewinding each recording / reproducing device to the beginning of a tape, an inspection function for automatically performing a tape inspection after dubbing an information signal, After dubbing the information signal,
It has a control function to automatically rewind the playback device to the beginning of the tape and a control function to automatically eject each recording / playback device after dubbing the information signal, and enables / disables each function on the GUI screen. 3. The tape dubbing system according to claim 2, wherein the tape dubbing system can be set freely. 10. The control device has a function of reading the correlation between the track number of the player deck and the track number of the recorder tape, automatically correcting the difference, and copying the data in the cassette memory from the player to the recorder group. 3. The tape dubbing system according to claim 2, comprising: 11. A tape dubbing system in which a plurality of recording / reproducing devices having a bidirectional communication function by a communication control bus capable of transmitting a control signal and an information signal in a mixed manner and a control device are connected via the communication control bus. An information recording medium on which a tape dubbing control program is recorded, wherein the control device defines an attribute of each recording / reproducing device on a GUI screen, and transmits one or more recording / reproducing devices to one or more other recording / reproducing devices. An information recording medium in which a tape dubbing control program is recorded so as to be executable by a computer, wherein a tape dubbing control program is automatically performed on one or one recording / reproducing apparatus.