JP2008092502A - Video recording device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that when the device for recording actually can not record by failure or the like, the notification to the other device may be impossible through network, besides recording is failed as a result, although the method for substituting video recording between video recording devices connected to network is proposed already. <P>SOLUTION: When it is detected that communication from the other device for recording is interrupted, the video recording device substitutes video recording automatically without receiving recording request from the other device according to the recording reservation information of the other device obtained in advance. When communication with the other device is restored after substituting video recording, if the data substituted video recording is recorded by the other device in practice, the recorded data of its own device are deleted automatically. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to video recording devices connected to each other via a network.

  There are DVD (Digital Versatile Disc) recorders and hard disk recorders as devices that can record and play back images. Recently, in addition to these special-purpose machines, personal computers are equipped with TV tuners. Recording and playback are now possible, and it is not uncommon to have multiple video recording devices in one home.

  However, in general, only an image can be independently produced in each device, and there is no inexpensive product in which a plurality of recording devices can complement the recording processing in cooperation.

On the other hand, as a method of recording in cooperation with a plurality of recording devices, Patent Document 1
There has been proposed a system for performing recording substitution among a plurality of video recording apparatuses connected to a network. For example, a recording reservation is registered in the first video recording apparatus, and the recording time of an existing recording reservation is recorded. When the time overlaps, the second video recording device connected to the first video recording device via the network can be requested to perform the recording substitute.

Further, in Patent Document 2, as a method for protecting the reserved recording when the user turns off the power (main power) of the video recording device, another device connected to the network based on the power-off request is used. It has been proposed to request substitution of scheduled recording.
JP 2005-333534 A JP 2005-354599 A

  However, for example, when the video recording apparatus in which the recording reservation is registered cannot be continued including the communication via the network due to a failure or the like, in the methods of Patent Document 1 and Patent Document 2, another video connected to the network is used. It is not possible to make a reservation recording reservation request to the recording device, and the recording fails. This is because the device on the side that performs the substitute for recording is passively waiting for the request for substitute for recording from the device that requests the substitution of recording.

  In order to solve the above-described problems, the video recording apparatus according to the present invention includes a self-recording reservation information storage unit that stores self-recording reservation information, and a self-recording that outputs the self-recording reservation information to another device. Based on the reservation information output means, the other apparatus recording reservation information storage means for storing the other apparatus recording reservation information, and the recording start time information in the other apparatus included in the other apparatus recording reservation information, the recording on the other apparatus can be performed. Whether the communication with other equipment is possible by inputting the other equipment recording start time judgment signal and the other equipment recording start time judgment means that judges that the time to start is approached and outputs as the other equipment recording start time judgment signal The other device communication enable / disable detecting means for outputting the other device communication disabled signal when the communication is impossible, and the other device stored in the other device recording reservation information storage means when the other device communication disabled signal is input. Recording reservation information and own recording reservation information storage The recording time of the other device recording reservation information from which the other device recording start time determination signal is output is included in the own device recording reservation information. Recording enable / disable determining means for outputting a recording enable determination signal when none of all recording reservations overlaps, and the other device recording from which the other device recording start time determination signal is output when the record enable determination signal is input The image processing apparatus includes a recording unit that performs recording based on the reservation information, and a recording information storage unit that stores the recording information recorded by the recording unit.

  In addition, the recording information output unit for outputting the recording information of the own device and the recording information output means for inputting the recording information of the other device when the other device communication enable signal is input and the recording information of the other device is output as the recording information of the other device. And a recording information storage determining means for outputting a recording information deletion signal for recording the recording of the recording apparatus in a case where the recording information for the recording of the substitute recording is included in the recording information for the recording apparatus. Stores the recording information of the own device and outputs it as the own device recording information, and the other device communication availability detecting means outputs the other device communication enable signal when communication with the other device is possible, and the recording information The storage means deletes the designated recording information when receiving the own recording information deletion signal.

  According to the present invention, even if the first video recording device fails, the video reserved for recording reservation by the first video recording device is active by the second video recording device connected to the network. Since the recording is performed on behalf of, the possibility of recording failure is reduced.

  In addition, the second video recording apparatus is not out of order and can be scheduled to be recorded normally, but communication is impossible due to a failure of the network device or the like. Even when the scheduled recording is substituted, when the mutual video recording apparatus becomes communicable with the restoration of the network device, the duplicate recording information is automatically deleted from the first video recording apparatus. The remaining recordable capacity of one video recording apparatus is not wasted.

(Embodiment)
FIG. 1 shows a video recording system in which a video recording apparatus according to the present invention is connected to a network. The first video recording apparatus 101 and the second video recording apparatus 102 are each connected by a network 103. Here, the network 103 may be, for example, a LAN (Local Area Network) based on Ethernet or a network based on IEEE 1394. The method may be any method as long as the first video recording apparatus 101 and the second video recording apparatus 102 can transmit and receive information to and from each other. In FIG. 1, two video recording apparatuses are connected to the network. However, a third video recording apparatus, a fourth video recording apparatus, and more video recording apparatuses may be connected.

  FIG. 2 is a configuration diagram of the first video recording apparatus 101 and the second video recording apparatus 102 in the embodiment of the present invention. Hereinafter, a description will be given with reference to FIG. In this case, for the sake of convenience, the first video recording apparatus 101 in FIG. 1 will be described as the “own apparatus” that is the subject of the operation, and the second video recording apparatus 102 will be described as the “other apparatus”. However, it is the same even if the first video recording apparatus 101 and the second video recording apparatus 102 are interchanged.

  For example, when the recording reservation information input unit 201 such as a recording reservation input unit by a user inputs a recording reservation on the first device, the first video recording apparatus 101 records the information on the recording device itself. It is stored in the own recording reservation information storage means 202 as reservation information. Further, the own device recording reservation information is output by the own device recording reservation information output means 203 to another device connected to the network. That is, in the video recording system of FIG. 1, the recording reservation information of the first video recording apparatus 101 is sent from the first video recording apparatus 101 to the second video recording apparatus 102.

  On the other hand, the first video recording device 101 receives the other device recording reservation information which is the recording reservation information in the second video recording device 102 from the second video recording device 102 connected to the network. The other device recording reservation information is input by the information input means 204 and the other device recording reservation information storage means 205 is stored.

  Here, the other-device recording reservation information includes recording device identification information, recording channel, recording start time, recording end time, and recording image quality as shown in FIG. 3, for example. Note that these pieces of information do not have to be directly included in the other-device recording reservation information. For example, the recording end time may be the time from when recording starts until it stops, and for example, these can be derived instead of the recording channel, recording start time and recording end time. It may be a specific identifier representing a recorded program. In an extreme case, each piece of information shown in FIG. 3 may be combined into one piece of identification information, that is, at least the recorder identification information, the recording channel, the recording start time, and the recording among those shown in FIG. If the end time can be derived, the form of the other-device recording reservation information does not matter.

  The other-device recording start time determination unit 210 uses the other-device recording reservation information stored in the other-device recording reservation information storage unit 205 to record the recording start time information in the second video recording device 102 as the other-device recording start time information. And when the second video recording apparatus 102 approaches the recording start time, the other apparatus recording start determination signal is output.

  When the other device recording start time determination signal is input, the other device communication availability detection means 211 checks whether communication with the second video recording device 102 is possible. When some trouble occurs in the video recording device 102, the recording reserved by the second video recording device 102 is determined to be impossible to be executed by the second video recording device 102, and the other device communication disabled signal Is output.

  When the other device communication disable signal is input, the recording availability determination unit 206 receives the other device recording reservation information stored in the other device recording reservation information storage unit 205 and the own device recording reservation stored in the own device recording reservation information storage unit 202. The information is compared with the information, and it is determined whether or not the recording time of the corresponding other-device recording reservation information overlaps with all the recording times in the own device recording reservation information. If they overlap, priority is given to recording in the own device, that is, the first video recording device 101, and recording reservation in the other device, that is, the second video recording device 102 is not performed. On the other hand, if the recording times do not overlap, a recording enable determination signal is output to the recording means 207. The recording means 207 to which the recordable signal is inputted substitutes recording according to the corresponding other-device recording reservation information, and the recorded recording information is stored in the recording information storage means 208. Although not shown in FIG. 2, the recording information storage unit 208 also stores the recording on the own device, and the own device recording information is output to the other device by the own device recording information output unit 209.

  Thereafter, when it is confirmed by the other device communication availability detection unit 211 that communication with the second video recording apparatus 102 is possible, the other device communication availability detection unit 211 outputs a signal indicating that the other device communication is possible. When the other-device recording information input means 212 receives the other-device communication enable signal, the other-device recording information input means 212 inquires the second video recording device 102 and inputs the recording information of the second video recording device 102, and substitute recording information as the other-device recording information. The data is output to the deletion determination unit 213.

  The substitute recording information deletion determination means 213 stores the record information substituted by the first video recording apparatus 101 in the recording information storage means 208 when the other apparatus recording information obtained from the second video recording apparatus 102 is included. On the other hand, a substitute recording information deletion signal is output. The recording information storage unit 208 that has received the substitute recording information deletion signal deletes the corresponding recording information.

  In the video recording device of the present invention, even when the video recording device fails, the video recording reservation registered in the video recording device is actively recorded by another video recording device connected to the network. Therefore, the possibility of recording failure is reduced.

  In addition, even when scheduled recording is mistakenly performed due to a failure of the network device, the duplicate recording information is automatically deleted when communication between the video recording devices becomes possible when the network device is restored. The remaining recording capacity of the recording device is not wasted.

The figure showing the network connection example of the video recording apparatus in this invention The block diagram which shows the structural example of the video recording apparatus in embodiment of this invention The figure which shows the structural example of the other apparatus video recording reservation information in embodiment of this invention

Explanation of symbols

101 First video recording apparatus 102 Second video recording apparatus 103 Network 201 Self recording reservation information input means 202 Self recording reservation information storage means 203 Self recording reservation information output means 204 Other recording reservation information input means 205 Other Machine recording reservation information storage means 206 Recording availability determination means 207 Recording means 208 Recording information storage means 209 Own recording information output means 210 Other equipment recording start time judgment means 211 Other equipment communication availability detection means 212 Other equipment recording information input means 213 Proxy Recording information deletion judgment means

Claims (2)

Self-recording recording information storage means for storing the self-recording recording information, self-recording recording information output means for outputting the self-recording recording information to other machines, and other-recording for storing other-recording recording information Based on the reservation information storage means and the recording start time information on the other device included in the other device recording reservation information, it is determined that the time at which the recording on the other device has started is approached, and the other device recording start time When the other device recording start time judgment means that outputs as a judgment signal and the other device recording start time judgment signal are input, it detects whether or not communication with the other device is possible. When the other device communication availability detection means and the other device communication unavailable signal to be output are input, the other device recording reservation information stored in the other device recording reservation information storage device and the own device recording reservation information storage device Get and compare recording schedule information, etc. Recordability judgment signal is output when the recording time of the other device recording reservation information from which the recording start time determination signal is output does not overlap with any of the recording reservations included in the own device recording reservation information A recording unit that performs recording based on the other-device recording reservation information from which the other-device recording start time determination signal is output when a recording enable determination signal is input; A video recording apparatus comprising recording information storage means for storing recording information. Self-recording information output means for outputting the self-recording information to other equipment, and other equipment recording information input means for inputting the recording information of the other equipment and outputting the recording information of the other equipment when the other-device communication enable signal is input. A recording information deletion determining means for outputting a recording information deletion signal of the recording apparatus of the recording apparatus when the recording information of the recording of the substitute recording by the recording apparatus is included in the recording information of the recording apparatus of the other apparatus; Recording the recording information of the own device and outputting it as the own device recording information, the other device communication availability detection means outputs the other device communication enable signal when the communication with the other device is possible, and the recording information storage means 2. The video storage device according to claim 1, wherein when the own recording information deletion signal is inputted, the designated recording information is deleted.

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