JP2002290902A - Digital video reproducing/recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically dub video by receiving the reservation of dubbing by its own device in the case of dubbing the video from its own device to a device of the other side or in the case of dubbing the video from the device of the other side to its own device in a video reproducing/recording device. SOLUTION: When a time to start reproduction stored in a memory has come, a CPU for performing output control confirms the operation state of the device of the other side (#12). When it is in the state of being capable of recording the video (YES in #13), the CPU transmits a video recording command to the device of the other side (#4), starts the reproduction of its own device (#15) and starts dubbing. When the device of the other side is not in the state of being capable of recording the video (NO in #13), the CPU performs dubbing starting and re-transmitting processing (#17) followed by the reproduction of its own device (#15) and starting dubbing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention reproduces a tape loaded in its own device and dubbs a tape loaded in a DVHS video deck (referred to as a partner device) connected by an IEEE 1394 serial bus cable. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video reproducing / recording apparatus for reproducing a tape loaded in a device and dubbing the tape loaded in the device.

[0002]

2. Description of the Related Art Conventionally, a plurality of communication devices are connected to IEEE1.
There is a network system which is connected to each other using a 394 standard serial bus cable and performs bidirectional communication. Communication devices applied to this system have been devised in various ways to improve usability. For example, in order to efficiently debug a device compatible with the IEEE 1394 serial bus and to design a system, the IEEE 1394 serial bus is used.
There is known a signal generator which generates a signal corresponding to a response returned from a device corresponding to an E1394 serial bus in response to a command for the device (for example, see Japanese Patent Application Laid-Open No. 10-187479). Further, there is known a communication device that performs packet format conversion between a home bus for controlling home appliances and an IEEE 1394 serial bus, thereby enabling transmission of digital data such as video, audio, and control commands. (See, for example, JP-A-10-178438). Also, when any device in the system receives a notification command requesting notification of a status change of the partner device based on the command and its response, the notification command is received from a number of devices exceeding the number of executable notification commands. Even in such a case, a communication device that enables the notification service is known (for example, Japanese Patent Laid-Open No.
No. 145401).

[0003]

SUMMARY OF THE INVENTION Such an IEEE
Applying a communication device having a 1394 serial bus to a plurality of VCRs, interconnecting the VCRs, reproducing a tape on one device, transmitting the video signal, and dubbing the tape on the other device. Is also possible. However, even in such a case, although it is possible to detect the operation state of the other device that is the connection destination,
It is not possible to reserve the operation schedule of the other device by itself and to automatically dub based on this schedule. That is, it is not possible to set the time at which dubbing is started, so that at the start of dubbing, the user must be present and operate the device, which is inconvenient. Further, when dubbing from a plurality of master tapes (master) to one tape, or when dubbing from one master tape to a plurality of tapes, the user replaces the plurality of tapes sequentially, Each device must be operated and complicated operations are required. In particular, when each device is installed in a separate room, for example, when the own device is installed in a living room and the other device is installed in a bedroom, the user performs the above operation while moving each room. Must be done, which is inconvenient.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is intended for dubbing from a master tape of the own device to a tape of a partner device, or dubbing from a master tape of a partner device to a tape of the own device. In such a case, a dubbing reservation (scheduling) is received by the own device,
It is an object of the present invention to provide a video reproducing / recording apparatus which automatically performs dubbing in a reserved time zone in a reserved order.

[0005]

In order to achieve the above object, according to the first aspect of the present invention, a plurality of digital devices are connected to a network via an interface bus so that bidirectional communication between the digital devices can be achieved. Is possible,
Communication means for automatically recognizing the connection state of each digital device at the time of network connection; storage means for storing ID information assigned to each digital device; and operation commands for operating each device itself (called own device) And output control means for outputting an operation command for operating the corresponding device with ID information of the other device attached thereto, reproducing the tape loaded in the own device, and connecting the video connected via the interface bus. In a digital video playback / recording apparatus compatible with a network system for dubbing a tape loaded in a recording apparatus (referred to as a partner apparatus), a network is connected to the partner apparatus via a network, and an interface bus for the connection is an IE.
An EE1394 serial bus, comprising input means for selecting a partner apparatus to be dubbed and inputting a reproduction start time of a tape loaded in the own apparatus so as to reserve dubbing; The received communication partner and the reproduction start time are stored in the storage means. When the reproduction start time is reached, a signal for confirming the operation state of the communication partner is output through the communication means, and the operation state of the communication partner is determined based on a response thereto. Is determined, and if recording is possible, a recording command is output to the other device, and the reproduction of the own device is started, and the reproduced video signal is transmitted to the other device, so that the other device is loaded. Dubbing to tape.

In this configuration, the own device and the other device are connected by an IEEE 1394 serial bus cable capable of two-way communication, and an operation command is output from the own device to the other device to remotely control the other device. Can be. It is assumed that ID information of the partner device is attached to the operation command, and even when a plurality of digital devices are connected to a network, the partner device to be controlled can be specified. When the playback start time stored in the storage means is reached, the output control means checks the operation state of the partner device and automatically starts dubbing if the recording is possible. On the other hand, if the other device is not in a state capable of recording, after a predetermined time elapses,
Check the operation status of the partner machine. Also, even if you want to dub from one master tape to multiple tapes,
If a plurality of tapes are loaded into a plurality of opponents and the reproduction start times of the respective opponents are stored, the opponents to be automatically recorded are sequentially selected and dubbing is executed. There is no need to change tapes.

Further, according to the invention of claim 2, since a plurality of digital devices are connected to a network via an interface bus, bidirectional communication between the digital devices is enabled. Communication means for automatically recognizing the connection state of the digital device; storage means for storing ID information assigned to each digital device;
Output control means for outputting an operation command for operating each device by attaching an operation command for operating each device itself (referred to as own device) and ID information of another device, and connected via an interface bus. In a digital video playback / recording apparatus compatible with a network system for playing back a tape loaded in a video playback apparatus (referred to as a partner apparatus) and dubbing the tape loaded in the apparatus itself, the network is connected to the partner apparatus via a network. Is an IEEE 1394 serial bus, comprising input means for selecting a partner apparatus to be played back and inputting a recording start time of a tape loaded in the own apparatus to reserve dubbing, and an output control means. Stores the other party and the recording start time reserved by the input means in the storage means; At the start time, a signal for confirming the operation state of the partner apparatus is output via the communication means, and the operation state of the partner apparatus is determined based on a response thereto, and if it can be reproduced, recording of the own apparatus is started. At the same time, a reproduction command is output to the partner machine, the reproduced video signal is obtained from the partner machine, and dubbed to a tape loaded in the machine itself.

In this configuration, the own device and the other device are connected by an IEEE1394 serial bus cable capable of two-way communication, and an operation command is output from the own device to the other device to remotely control the other device. Can be. It is assumed that ID information of the partner device is attached to the operation command, and even when a plurality of digital devices are connected to a network, the partner device to be controlled can be specified. When the recording start time stored in the storage means is reached, the output control means confirms the operation state of the partner device and automatically starts dubbing if the reproduction is possible. On the other hand, if the other device is not in a state capable of recording, after a predetermined time elapses,
Check the operation status of the partner machine. Also, even if you want to dub from multiple master tapes to one tape,
If the master tape is loaded into a plurality of opponents and the reproduction start time of each opponent is stored, the opponents to be automatically recorded are sequentially selected and dubbing is executed. There is no need to replace.

According to a third aspect of the present invention, a plurality of digital devices are connected via an interface bus to enable bidirectional communication between the digital devices. Communication means for automatically recognizing the connection state of the
Storage means for storing the D information; and output control means for outputting an operation command to operate each device by attaching an operation command to operate each device itself (referred to as own device) and ID information of another device. A digital video reproducing / recording apparatus for reproducing a tape loaded in its own device and dubbing a tape loaded in a video recording device (referred to as a partner device) connected via an interface bus. And input means for making a dubbing reservation by inputting a reproduction start time of a tape loaded in the own apparatus, and an output control means comprising: The recorded playback start time is stored in the storage means, and when the playback start time is reached, a recording command is output to the partner device via the communication means. Rutotomoni, to start playback of its own equipment,
By transmitting the reproduced video signal to the other device,
Dubbing is performed on the tape loaded in the other machine.

In this configuration, the own device and the other device are connected by an interface bus capable of bidirectional communication,
The own device can output an operation command to the other device to remotely control the other device. It is assumed that ID information of the partner device is attached to the operation command, and even when a plurality of digital devices are connected to a network, the partner device to be controlled can be specified. When the playback start time stored in the storage means is reached, the output control means plays back the own apparatus and outputs a recording command to the other apparatus to automatically start dubbing. Therefore, the present device only needs to be a digital video playback device having at least the above characteristics. Further, even when it is desired to dub from a single master tape to a plurality of tapes, if the plurality of tapes are loaded in a plurality of partner machines and the reproduction start times of the respective partner machines are stored, automatic dubbing can be performed. Since dubbing is executed by sequentially selecting the other devices to be recorded, the user does not need to change tapes.

According to a fourth aspect of the present invention, since a plurality of digital devices are connected via an interface bus, bidirectional communication between the digital devices is enabled. Communication means for automatically recognizing the connection state of the
Storage means for storing the D information; and output control means for outputting an operation command to operate each device by attaching an operation command to operate each device itself (referred to as own device) and ID information of another device. In a digital video reproducing / recording apparatus for reproducing a tape loaded in a video reproducing apparatus (referred to as a partner apparatus) connected via an interface bus and dubbing the tape loaded in the apparatus, a partner apparatus and an interface bus are used. And input means for making a dubbing reservation by inputting a recording start time of a tape loaded in the own apparatus, and an output control means, which is input by the input means. The recording start time is stored in the storage means, and the recording of the own device is started when the recording start time is reached. And it outputs the reproduction command through the signal means, acquires a video signal the reproduction from the partner station is for dubbing a tape loaded therein.

In this configuration, the own device and the other device are connected by an interface bus capable of bidirectional communication,
The own device can output an operation command to the other device to remotely control the other device. It is assumed that ID information of the partner device is attached to the operation command, and even when a plurality of digital devices are connected to a network, the partner device to be controlled can be specified. When the recording start time stored in the storage means is reached, the output control means starts recording of the own apparatus and outputs a reproduction command to the other apparatus to automatically start dubbing. Therefore, the present device only needs to be a digital video recorder having at least the above characteristics. Also, even when it is desired to dub from a plurality of master tapes to one tape, if the master tape is loaded into a plurality of opponent machines and the reproduction start time of each of the opponent apparatuses is stored, the duplication is automatically performed. The user does not need to change tapes because the other device to be recorded is sequentially selected and dubbing is performed.

According to a fifth aspect of the present invention, in the digital video reproducing / recording apparatus according to the third or fourth aspect, the interface bus is an IEEE1394 serial bus. In this configuration, connection between the own device and the other device can be easily performed.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A network system according to one embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic configuration of a network system according to the present invention. The network system 1 uses a plurality of digital devices such as DVHS video decks (video playback / recording devices) 10, 20, and 30 as IEEE 1394 serial bus cables (hereinafter, referred to as IEEE 1394 cables).
It is built by connecting via In addition, each DV
The HS video decks 10, 20, and 30 have a TV monitor 1
9, 29 and 39 are connected.

Each of the DVHS video decks 10, 20, 30
Can communicate bidirectionally by transmitting information signals such as video signals or image signals and control signals (operation commands) via the IEEE 1394 cable 2,
By transmitting a control signal to other devices in the system, it is possible to remotely control a device in which the main power is on and in a standby state among the other devices. For example, the DVHS video deck 10 transmits a playback command to the DVHS video deck 30 via the IEEE 1394 cable 2, thereby reproducing the tape loaded in the DVHS video deck 30, and transmitting the video signal to the IEEE 1394 cable 2. And can be displayed on the TV monitor 19. A device having a function of controlling the operation of another device in the network is called a controller device, and the DVHS video deck 10 (controller device A)
And DVHS video deck 20 (controller device B)
Is applicable. Devices controlled by the controller devices A and B are called target devices, and correspond to the DVHS video deck 30. The controller device A (or B) may be controlled by another controller device B (or A), and in this case, functions as a target device.

FIG. 2 shows a DVHS applied to the present system 1.
1 shows a block diagram of video decks 10, 20, 30. D
The VHS video deck 10 includes ports 11a and 11b for connecting IEEE 1394 cables 2a and 2b,
A PHY chip 12 for encoding / decoding a digital signal such as a video signal, a LINK chip 13 for discriminating data such as a node ID to be described later, a CPU 14 for controlling the entire DVHS video deck 10, and a node I
D, a memory 15 for storing the playback / recording target device and the playback / recording time, and an input key 16 for inputting the playback / recording target device and the playback / recording time. Similarly, the DVHS video deck 20 has ports 21a and 21
b, PHY chip 22, LINK chip 23, CPU2
4, a memory 25 and an input key 26, and a DVH
S video deck 30 has port 31, PHY chip 3
2, a LINK chip 33, a CPU 34, a memory 35, and an input key 36. Both ends of the IEEE 1394 cable 2a are connected to the port 11 of the DVHS video deck 10.
b and the port 21a of the DVHS VCR 20
Both ends of the EE1394 cable 2b are connected to a port 21b of the DVHS video deck 20 and a port 31 of the DVHS video deck 30, respectively. Note that input key 1
6, 26, and 36 are usually provided in an input device such as a remote controller, but the DVHS video decks 10, 20, 30
May be provided on the exterior panel.

D having an IEEE 1394 serial bus
In the present system 1 in which the VHS VCRs 10, 20, and 30 are connected to a network, different devices are assigned different node IDs in order to distinguish and recognize the devices. This node ID is assigned to each DVHS video deck 10, 20, 30.
Is given as a new ID when the power is turned on and when the bus is reset such as when a device is added or deleted. And each DVHS
Communication of image data between the video decks 10, 20, and 30 is performed by using carrier waves having different frequency bandwidths for each node ID corresponding to each device. This frequency bandwidth is specified based on the time chart shown in FIG. That is, first, the image transmitting device searches for a vacant bandwidth (# 1), and sends a signal to the receiving device to teach the use of the bandwidth (# 2).
The receiving device that has received this signal transmits a signal indicating that the bandwidth is available to the transmitting device (# 3), and the transmitting device that has received this signal thereafter transmits the signal to the transmitting device. The image data is transmitted with the width (# 4).

In FIG. 2, the DVHS video deck 10
Controls the DVHS video deck 20 as follows. First, a control command for controlling the DVHS video deck 20 is sent from the CPU 14 to the LINK chip 1.
3 and transmitted to the port 11b via the PHY chip 12. This control command includes DVHS VCR 2
0 is attached, and the IEEE 1394 is attached.
The signal is transmitted to the port 21a of the DVHS video deck via the bus cable 2a. D receiving this control command
The VHS VCR 20 further transmits the signal to the LINK chip 2 via the port 21a and the PHY chip 22.
Transmit to 3. Then, the LINK chip 23 recognizes that the node ID attached to the control command is its own, and transmits this signal to the CPU 24. C
The PU 24 controls the operation of the DVHS video deck 20 based on the transmitted control signal.

For example, the CPU 24 starts the reproduction operation of the DVHS video deck 20 based on the transmitted control signal, and transmits the obtained video signal through a path reverse to the above.
The data is transmitted to the CPU 14 of the DVHS video deck 10. C
The PU 14 records the received video signal on the loaded tape or displays it on the TV monitor 19. In addition, the video signal reproduced on the DVHS VCR is
It is also possible to transmit to the DVHS video deck via the above-mentioned path via an E1394 cable,
By transmitting a recording command to the DVHS VCR, the tape can be dubbed to the tape of the DVHS VCR.

In the network shown in FIG.
By transmitting control commands via the IEEE 1394 cables 2a and 2b, the DVHS video deck 10 can also control the DVHS video deck 30. That is, similarly to the above, the control command to which the node ID corresponding to the DVHS video deck 30 is attached is transmitted by the CPU.
14 to the port 11b via the LINK chip 13 and the PHY chip 12. Further, this control command is transmitted to the DVH via the IEEE 1394 cable 2a.
The data is transmitted to the port 21a of the S video deck 20. The DVHS video deck 20, which has received the control command, further transmits the signal to the LINK chip 23 via the port 21a and the PHY chip 22. Here, LINK
If the chip 23 recognizes that the attached node ID does not correspond to its own device, it returns the control command to the PHY chip 22. Further, the PHY chip 22 transmits this control command to the port 21b, the IEEE1
DVHS VCR 30 via 394 cable 2b
Is transmitted to port 31. DV receiving the control command
Similarly to the above, the HS video deck 30 recognizes that the node ID attached to the control command by the LINK chip 33 is its own, and the CPU 34 determines the DVHS video deck based on the transmitted control command. 30 operation control. DVHS video deck 20 in this case
Serves as a relay device (hub device) between the DVHS video deck 10 and the DVHS video deck 20,
It has a function of passing a control command to which a node ID not corresponding to its own device is attached.

Next, the dubbing reservation (timer dubbing) function of the DVHS video deck 10 (reservation on the reproduction side by itself) will be described. This function is performed by remotely controlling the DVHS video decks 20 and 30 by the DVHS video deck 10 based on the reservation set by the user as described above.
The recording of the tape loaded in the own device is started, and the video signal obtained by reproducing the tape
The dubbing is performed on the tape loaded in the VHS video decks 20, 30. The user of the DVHS VCR 10 operates the input key 16 of the remote controller to display a menu screen on the TV monitor 19, and selects "dubbing reservation setting (reservation by the player itself on the playback side)" from this menu screen. The dubbing reservation setting screen shown in FIG. 1 is displayed on the TV monitor 19, and the same function can be set.

On the screen of the same setting, the device to be recorded (the other device) and the time at which the reproduction of the own device is started and the order thereof are displayed. The user refers to this screen and presses the input key 16 of the remote controller or the like. The user selects an apparatus to be recorded, inputs a time and an order, and the information is registered in the memory 15. Here, the first is the DVHS VCR 20
00:00 as the time for (DVHS-B),
Second, the DVHS VCR 30 (DVHS-
02:00 is registered as the time for C).

At the registered time, the CPU 1
4 starts the dubbing when the operation state of the DVHS video deck 20 is confirmed and the recording is possible. Here, for example, when the recording is not possible, such as when the DVHS video deck 20 is being reproduced, a dubbing start / retransmission process is performed on the partner device. The dubbing start retransmission process is a process of automatically retransmitting a command for confirming the operation state of the partner device. If this process is repeated a certain number of times or more, dubbing becomes impossible and the process for this reservation is not performed (dubbing). Unprocessed). Less than,
The dubbing process is similarly performed on the DVHS video deck 30 in the order of registration.

Next, the registration process of the dubbing reproduction time by the DVHS video deck 10 will be described with reference to FIG. First, the user is caused to select a partner device (# 6), and a dubbing reproduction start time is input, and these information are stored in the memory 15 (# 7). If there is a next registration (YES in # 8), the process returns to # 6, and is repeated until there is no next registration (NO in # 8).
The dubbing playback time is registered, and a dubbing reservation is set.

The dubbing reproduction operation of the DVHS video deck 10 will be described with reference to FIG. First, a registered partner device is selected (# 11), and its operation state is confirmed (# 12). If the status of the partner device is recordable (YES in # 13), a recording command is transmitted (# 14), and when a recording completion command is received from the partner device,
The own device is reproduced and dubbing is started (# 15). If there is a next registration (YES in # 16), the process returns to # 11, and if there is no next registration (NO in # 16), the process ends.
If it is determined in # 13 that the other device is not capable of recording (NO in # 13), a dubbing start retransmission process is performed (# 17), and the process proceeds to # 14.

As described above, the dubbing process is automatically performed at the registered playback start time. Further, even when it is desired to dub from a single master tape to a plurality of tapes, if the tape to be dubbed is loaded into each DVHS VCR and a reservation is made in advance, the time determined by the reservation is determined. Dubbing can be performed in order, and troublesome operations such as replacement of tapes can be omitted. In addition, at the time of dubbing, the operation state of the partner machine is checked, and a measure is taken in accordance with the operation state. Therefore, malfunction of the partner machine due to redundant input of different operation commands can be prevented.

When the DVHS video deck 10 is used, the tapes loaded in the DVHS video decks 20 and 30 are reproduced by remotely controlling the DVHS video decks 20 and 30, and the obtained video signals are transmitted to the own device. Dubbing can also be performed on the loaded tape. An embodiment in this case is shown in FIG. In the figure, the user of the DVHS VCR 10 operates the input key 16 of the remote controller to display a menu screen on the TV monitor 19, and from this menu screen, sets “dubbing reservation setting (the user's own device is a recording-side reservation)”. By making a selection, a dubbing reservation setting screen is displayed on the TV monitor 19, and the same function can be set.

On the screen of the same setting, the reproduction target device (the partner device) and the time at which the recording of the own device is started and the order thereof are displayed, and the user presses the input key 16 of the remote controller or the like while referring to this screen. The device to be played is selected, the time and the order are input, and the information is registered in the memory 15. Here, the first is the DVHS VCR 20
The time for (DVHS-B) is 00:00
Is the second DVHS video deck 30 (DVHS
02:00 is registered as the time for -C).

At the registered time, the CPU 1
No. 4 starts the dubbing if the operation state of the DVHS video deck 20 is confirmed and the reproduction is possible. And
Hereafter, in the order of registration, the DVHS VCR 3
The dubbing process is similarly performed on 0. here,
For example, the DVHS VCR 20 is recording,
If the reproduction is not possible, the same dubbing start and retransmission processing as described above is performed.

Next, registration processing of the dubbing recording time by the DVHS video deck 10 will be described with reference to FIG. First, the user is caused to select a partner machine (# 21),
Further, a dubbing recording start time is input, and these information are stored in the memory 15 (# 22). If there is the next registration (YES in # 23), the process returns to # 21 and repeats until there is no more registration (NO in # 23), whereby the dubbing recording time is registered and the dubbing reservation is set.

The dubbing recording operation of the DVHS video deck 10 will be described with reference to FIG. First, a registered partner device is selected (# 31), and its operation state is confirmed (# 32). If the state of the partner device is recordable (YES in # 33), recording of the own device is started (# 34), and a reproduction command is transmitted to the partner device to perform dubbing (# 35). If there is a next registration (Y in # 36)
ES), the flow returns to # 31, and when there is no more next registration (NO in # 36), the process ends. If the other device cannot be reproduced in # 33 (NO in # 33), dubbing start retransmission processing is performed (# 37), and the process proceeds to # 34.

As described above, the dubbing process is automatically performed at the registered recording start time. Also, even when it is desired to dub from a plurality of master tapes to one tape, if the DVHS video decks 20 and 30 are loaded with the tape to be dubbed and made a reservation in advance, the DVHS VCRs 20 and 30 can be set at the time determined by the reservation Dubbing can be performed in a predetermined order, and troublesome operations such as tape replacement can be omitted. In addition, at the time of dubbing, the operation state of the partner machine is checked, and a measure is taken in accordance with the operation state. Therefore, malfunction of the partner machine due to redundant input of different operation commands can be prevented.

The present invention can be variously modified without being limited to the configuration of the above embodiment. For example, # 12, # 13 and # 17 shown in FIG. 5, or # 12 shown in FIG.
It is assumed that the confirmation of the operation state of the partner device of # 32, # 33 and # 37 and the processing corresponding thereto are omitted, and the playback / recording command is immediately transmitted to the partner device when the reserved dubbing playback / recording start time comes. Is also good.

In addition, in addition to the dubbing reproduction / recording start time, the input time at the time of setting the dubbing reservation is
The dubbing playback / recording end time may be input. In FIG. 1, the video signals reproduced by the DVHS video deck 10 may be simultaneously dubbed to the DVHS video decks 20 and 30.

In FIG. 1, the DVHS video deck for reproduction may be a plurality of DVHS video decks.
The playback operation of the HS video deck may be remotely controlled. Similarly, in FIG. 6, the recording DVHS VCR may be a plurality of DVHS VCRs, and the DVHS VCR 10 may use the plurality of DVHS VCRs.
The recording operation of the HS video deck may be remotely controlled. In this case, dubbing from a plurality of master tapes to a plurality of tapes becomes possible.

Further, the digital equipment connected to the network by the IEEE1394 cable 2 is not limited to a DVHS video deck, but may be a digital video camera represented by a handycam or the like. Also, D
VHS VCRs 10, 20, and 30 are TV monitors 1
It may be integrated with 9, 29, 39.

[0037]

As described above, according to the first aspect of the present invention,
Even when dubbing from a single master tape to a plurality of tapes, if a tape to be recorded is loaded into each device connected to the network via an IEEE1394 cable and a reservation is made, the reservation is determined. Dubbing can be performed in the order determined at the time. Therefore, troublesome operations such as replacement of the tape can be omitted. Also, by setting the dubbing reproduction start time, it is possible to automatically select a partner device and start dubbing even when the user is not present. Therefore, dubbing can be performed using the time when the DVHS VCR is vacant when the user is out or sleeping, and the like.
Convenience is improved. Also, at the time of dubbing, the operation status of the other machine is checked and measures are taken according to the operation status.
It is possible to prevent erroneous operation of the partner device due to duplicate input of different operation commands.

According to the second aspect of the present invention, even when dubbing from a plurality of master tapes to one tape is desired, the master tape is loaded into each device connected to the network via an IEEE 1394 cable and reserved. By doing so, dubbing can be performed in the order determined at the time determined by the reservation. Therefore, troublesome operations such as replacement of the master tape can be omitted. In addition, by setting the start time of dubbing recording, it is possible to automatically select a partner device and start dubbing even when the user is not present. Therefore, dubbing can be performed using the time when the DVHS VCR is empty when the user is out or sleeping, and the convenience is improved. In addition, at the time of dubbing, the operation state of the partner machine is checked, and a measure is taken in accordance with the operation state. Therefore, malfunction of the partner machine due to redundant input of different operation commands can be prevented.

According to the third aspect of the present invention, even when it is desired to dub from one master tape to a plurality of tapes, the tape to be dubbed is loaded into each device connected to the network via the interface bus and reserved. By doing so, dubbing can be performed in the order determined at the time determined by the reservation. Therefore, troublesome operations such as replacement of the tape can be omitted. Also,
By setting the start time of dubbing reproduction, it is possible to automatically select a partner device and start dubbing even when the user is not present. Therefore, dubbing can be performed using the time when the DVHS VCR is empty when the user is out or sleeping, and the convenience is improved.

According to the fourth aspect of the present invention, even when dubbing from a plurality of master tapes to one tape is desired, the master tape is loaded and reserved in each device connected to the network via the interface bus. By doing so, dubbing can be performed in the order determined at the time determined by the reservation. Therefore, troublesome operations such as replacement of the master tape can be omitted.
Also, by setting the start time of dubbing playback,
Even when the user is not present, it is possible to automatically select a partner device and start dubbing. Therefore, dubbing can be performed using the time when the DVHS VCR is empty when the user is out or sleeping, and the convenience is improved.

According to the fifth aspect of the present invention, it is possible to easily connect the own device to another device. With this, the IEEE
The so-called Hot Plug In and Plug & Play (Plug & Pla) of the E1394 cable
The function of y) can be provided, and user convenience can be improved.

[Brief description of the drawings]

FIG. 1 is an exemplary view showing a connection state of each DVHS VCR and a screen display when a dubbing reservation is set (the own apparatus is a reproduction side) in a network system according to an embodiment of the present invention.

FIG. 2 is a block diagram of a DVHS video deck used in the system as its own device and a partner device.

FIG. 3 is a time chart showing a procedure for specifying a frequency band when transmitting image data in the same system.

FIG. 4 is a flowchart showing a procedure for registering a dubbing playback time when a dubbing reservation is set by the own device of the system.

FIG. 5 is a diagram showing C during dubbing playback by the own device of the same system.
9 is a flowchart illustrating a processing procedure of a PU.

FIG. 6 shows the connection status of each DVHS VCR in the same system and the setting of automatic dubbing reservation (the own device is on the recording side).
The figure which showed the screen display of.

FIG. 7 is a flowchart showing a procedure for registering a dubbing playback time when a dubbing reservation is set by the own device of the system.

[Fig. 8] C at the time of dubbing recording by the own device of the same system.
9 is a flowchart illustrating a processing procedure of a PU.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Network system 2 IEEE1394 cable 10 DVHS video deck (video playback / recording device: own device) 13 LINK chip (communication means, output control means) 14 CPU (output control means) 15 Memory (storage means) 20, 30 DVHS video deck (Video playback / recording device: partner device)

Claims (5)

[Claims] 1. A plurality of digital devices are connected to a network via an interface bus, thereby enabling bidirectional communication between the digital devices. When the network is connected, the connection status of each digital device is changed. A communication means for automatically recognizing, a storage means for storing ID information assigned to each digital device, and an operation command for operating each device itself (referred to as the own device) and ID information of other devices attached thereto. Output control means for outputting an operation command to operate the device to be operated, reproduces the tape loaded in the own device, and loads the tape into a video recording device (referred to as a partner device) connected via the interface bus. In a digital video playback / recording device compatible with a network system for dubbing to tape, a network connection is established with the partner device and the connection An interface bus for use is an IEEE 1394 serial bus, comprising input means for selecting a partner device to be dubbed and inputting a reproduction start time of a tape loaded in the own device to reserve dubbing; The means stores the partner device and the reproduction start time reserved by the input unit in the storage unit, and outputs a signal for confirming the operation state of the partner device via the communication unit when the reproduction start time comes. , From the response to this, determine the operating state of the partner machine, if recording is possible,
A network characterized by outputting a recording command to a partner machine, starting playback of the machine itself, transmitting the reproduced video signal to the partner machine, and dubbing the tape loaded in the partner machine. System compatible digital video playback / recording device. 2. When a plurality of digital devices are connected to a network via an interface bus, bi-directional communication between the digital devices is enabled, and the connection status of each digital device is changed at the time of the network connection. A communication means for automatically recognizing, a storage means for storing ID information assigned to each digital device, and an operation command for operating each device itself (referred to as the own device) and ID information of other devices attached thereto. Output control means for outputting an operation command for operating a device to be operated, and reproduces a tape loaded in a video reproducing device (referred to as a partner device) connected via the interface bus, and In a network-compatible digital video playback / recording device for dubbing to tape, a network connection is established with the partner device, and the connection An interface bus for use is an IEEE 1394 serial bus, comprising input means for making a dubbing reservation by selecting a partner device to be played back and inputting a recording start time of a tape loaded in the own device. The means stores the partner device and the recording start time reserved by the input unit in the storage unit, and outputs a signal for confirming the operation state of the partner device via the communication unit when the recording start time comes. , The operation status of the other device is determined from the response to the
A network system for starting recording of the own device, outputting a playback command to the other device, acquiring the reproduced video signal from the other device, and dubbing on a tape loaded in the own device. Compatible digital video playback / recording device. 3. When a plurality of digital devices are connected via an interface bus, bidirectional communication between the digital devices is enabled, and the connection status of each digital device is automatically set at the time of the connection. , A storage unit for storing ID information allocated to each digital device, and an operation command for operating each device itself (referred to as the own device) and ID information of another device attached to the corresponding device. Output control means for outputting an operation command to operate the tape recorder, reproduces the tape loaded in the own device, and outputs the tape to the tape loaded in the video recording device (referred to as a partner device) connected via the interface bus. In a digital video playback / recording device to be dubbed, the other device is connected via an interface bus to select the other device to dub, Input means for reserving dubbing by inputting a reproduction start time of the tape, wherein the output control means causes the storage means to store the reproduction start time reserved by the input means, Then, a recording command is output to the partner device via the communication means, the playback of the own device is started, and the reproduced video signal is transmitted to the partner device, so that the tape loaded in the partner device. A digital video playback / recording apparatus characterized by dubbing. 4. When a plurality of digital devices are connected via an interface bus, bi-directional communication between the digital devices is enabled, and the connection status of each digital device is automatically set at the time of the connection. , A storage unit for storing ID information allocated to each digital device, and an operation command for operating each device itself (referred to as the own device) and ID information of another device attached to the corresponding device. Output control means for outputting an operation command for operating the tape recorder, and reproduces a tape loaded in a video reproducing device (referred to as a partner device) connected via the interface bus, and In a digital video playback / recording device for dubbing, connected to the partner device via the interface bus, the user selects the partner device to be played, and Input means for reserving dubbing by inputting the recording start time of the group, the output control means stores the partner device and the recording start time input by the input means in the storage means, When the recording start time comes, start recording of the own device, and output a reproduction command to the other device via the communication means,
A digital video reproducing / recording apparatus compatible with a network system, wherein the reproduced video signal is obtained from a partner apparatus and dubbed to a tape loaded in the apparatus itself. 5. The method according to claim 1, wherein the interface bus is an IEEE bus.
4. A 1394 serial bus.
Or a digital video playback / recording device according to claim 4.