JP2009010667A - Video recording system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem, wherein a portion that cannot be viewed, or the like, sometimes is not recorded because a video recording command is not transmitted or because of a transmission time even if transmitted according to the state of a portable terminal because the portable terminal, as a subject, detects abnormality in viewing and transmits the video recording command in the conventional technique, even though techniques for making a different video recorder video record the part that cannot be viewed are disclosed, when the portable terminal provided with the function of viewing digital broadcasting becomes unable to view digital broadcasting. <P>SOLUTION: In this video recording system, a video recorder periodically transmits operating state confirmation notification for confirming the operating state of the portable terminal, and stores broadcast data, after the last point of time of normally receiving response notification from the portable terminal into a storing part, when the portable terminal does not return response notification to the video recorder, in the state where the portable terminal returns the response notification to the operating-state confirmation notification. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a recording system including a portable terminal capable of viewing a broadcast and a recording apparatus capable of viewing and recording.

  Mobile terminals having a function of receiving and recording / viewing terrestrial digital broadcasts, and portable terminals such as PDA (Personal Digital Assistants) have been proposed.

  However, since terrestrial digital broadcasting does not reach in underground shopping streets or the like, it is difficult for these mobile terminals to record / view terrestrial digital broadcasting.

  In view of such problems, when recording / viewing of digital terrestrial broadcasting cannot be performed, a recording command or transmission command is sent to a home device (recording device) by wireless data communication by a user operation, and recording is instructed to the home device. Or a portable viewing device that transmits a digital broadcast received by a device at home (see Patent Document 1).

JP 2003-110955 A

  However, in the conventional technology, the recording device does not perform recording unless it senses an abnormality that the portable terminal cannot record / view terrestrial digital broadcasting and transmits a recording command to the recording device. That is, since the mobile terminal mainly performs the recording command, the reception of the broadcast wave receiving unit becomes impossible due to power consumption of the mobile terminal, and the mobile terminal state monitoring unit detects the abnormality, and the mobile terminal When the recording command is transmitted to the recording device, the recording command to the recording device is not performed depending on the degree of power consumption of the mobile terminal, and the recording device may not be able to execute the recording.

  In addition, even if the mobile terminal detects an abnormality such as a reception failure of the broadcast wave receiving unit and transmits a recording command to the recording device after the mobile terminal detects an abnormality such as a reception failure of the broadcast wave receiving unit, it takes time from the detection of the abnormality to the transmission of the recording command. Therefore, the recording apparatus may not be able to record a part of the part that could not be viewed due to an abnormality.

  The present invention has been made in view of the above problems, and when a mobile terminal becomes abnormal and reception of a digital broadcast becomes difficult, the mobile terminal is monitored for an abnormality by the recording device, and recording of the digital broadcast is performed. It is an object to provide a broadcast recording system acting as a substitute.

  It is another object of the present invention to provide a recording system in which a recording device records a portion that cannot be viewed without omission when a portable terminal becomes abnormal and the digital broadcast cannot be viewed.

  The recording system of the present invention includes a recording device that periodically transmits an operation status confirmation notification for confirming whether a broadcast viewing condition is satisfied for a mobile terminal capable of receiving a digital broadcast, and an operation status confirmation notification. Is received and the broadcast viewing condition is satisfied, and when the broadcast viewing condition is satisfied, the portable recording device returns a response notification to the recording device. If the response time from sending the operation status confirmation notification to receiving the response notification is within a predetermined time, the digital broadcast received at the predetermined time is not stored, and the response time is not within the predetermined time Is characterized in that the digital broadcast received at a predetermined time is stored.

  According to the present invention, since an abnormality of the portable terminal is monitored by the recording device, even when the portable terminal becomes abnormal and reception of the digital broadcast becomes difficult, the recording device can perform the recording of the digital broadcast. it can.

  Further, according to the present invention, when the mobile terminal becomes abnormal and the digital broadcast cannot be viewed, the recording apparatus can record the portion that cannot be viewed without omission.

  The best mode for carrying out the present invention will be described with reference to the drawings. FIG. 1 is an overall configuration diagram for explaining an outline of a recording system including a mobile terminal 100 and a recording apparatus 200 according to an embodiment of the present invention. In the figure, the recording system is configured to include a network 300 and a display device 400 in addition to the portable terminal 100 and the recording device 200.

  The mobile terminal 100 is a device that can receive broadcast waves from a television or the like and has a communication function with a recording device. Specifically, a mobile phone, a mobile PC (Personal Computer), a PDA (Personal Digital Assistant), and the like. The recording device 200 is a device having a communication function such as a PC or a video recorder equipped with a recording function. The network 300 is a mobile phone network, a wireless LAN (Local Area Network), or the like. The display device 400 displays the video recorded by the recording device.

  FIG. 2 is a block diagram illustrating a configuration of the mobile terminal 100. Referring to FIG. 2, the mobile terminal 100 includes a broadcast wave receiving unit 110, a communication unit 120, a video display / audio output unit 140, a mobile terminal state monitoring unit 150, a viewing record storage unit 160, an operation unit 180, and a control unit. 190 is provided.

  The broadcast wave receiving unit 110 receives a digital broadcast and decodes data via a broadcast receiving antenna (not shown). The communication unit 120 transmits and receives data and the like to and from the recording device 200. The video display / audio output unit 140 outputs the decoded video and audio. The portable terminal state monitoring unit 150 monitors conditions necessary for viewing a television broadcast such as the reception intensity of the digital broadcast and the remaining battery level of the portable terminal. The viewing record storage unit 160 stores a viewing channel, a digital broadcast, a viewing end position of a program distributed from the recording device, and the like. The operation unit 180 accepts user operations. The control unit 190 controls the entire mobile terminal 100.

  FIG. 3 is a block diagram illustrating a configuration of the recording device 200. Referring to FIG. 3, the recording apparatus 200 includes a broadcast wave receiving unit 210, a communication unit 220, an external output terminal 240, a communication state monitoring unit 250, a reservation information storage unit 260, a recorded program storage unit 280, and a control unit 290. I have.

  The broadcast wave receiving unit 210 receives a digital broadcast and decodes data via a broadcast receiving antenna (not shown). The communication unit 220 transmits / receives data and the like to / from the mobile terminal 100 and acquires various types of information from the Internet or the like. The external output terminal 240 outputs the decoded video and audio to an external display device or the like. The communication state monitoring unit 250 monitors the communication state with the mobile terminal 100 and measures, for example, the response time from the transmission of the notification transmitted from the recording device 200 to the reception of the notification of the corresponding mobile terminal 100. The reservation information storage unit 260 stores recording reservation information. The recorded program storage unit 280 stores digital broadcast recording data. The control unit 290 controls the entire recording apparatus 200.

  Next, the operation of the embodiment of the present invention will be described with reference to FIGS.

  FIG. 4 is a flowchart showing the operation of the mobile terminal 100. Referring to FIG. 4, when television viewing is started by the operation of operation unit 180 by the user, broadcast wave reception unit 110 receives a broadcast program of the viewing channel designated by operation of operation unit 180 (step S400). ).

  When viewing of the broadcast program is started, the control unit 190 transmits a viewing start notification including information about the viewing channel and the viewing start time to the recording device 200 via the communication unit 120 (step S410).

  The control unit 190 manages the communication unit 120, the portable terminal state monitoring unit 150, the operation unit 180, etc., waits for the occurrence of an event, and performs processing suitable for each event that has occurred, as shown in FIG. Instructions are given to each part of 100. The event includes an operation for changing a reception channel, receiving an operation status confirmation notification from the recording apparatus 200, and an operation for ending viewing. When the processing of each event ends, the mobile terminal 100 enters a standby state in order to wait for the next event. (Steps S420 and S430).

  In step S <b> 430, when the user changes the viewing channel by operating the operation unit 180, the broadcast wave receiving unit 110 receives the broadcast program of the viewing channel specified by the operation of the operation unit 180. Further, the control unit 190 causes the communication unit 120 to transmit the changed viewing channel to the recording device 200 (step S431).

  In step S430, when the communication unit 120 receives the operation status confirmation notification from the recording device 200, the control unit 190 causes the mobile terminal state monitoring unit 150 to determine broadcast viewing conditions such as the digital broadcast reception state and the battery level of the mobile terminal. It is determined whether it is satisfied (step S432).

  In step S432, when the broadcast viewing condition is satisfied, the control unit 190 returns a response notification indicating that the viewing is normally performed to the recording device 200 (step S433).

  In step S432, when the broadcast viewing condition is not satisfied, that is, when the mobile terminal state monitoring unit 150 detects abnormality detection regarding the viewing state of the digital broadcast of the mobile terminal 100, the control unit 190 passes through the communication unit 120. Then, a viewing state abnormality notification is transmitted to the recording device 200 (step S434).

  In step S430, when the viewing stop is selected by the user operating the operation unit 180, the viewing ends (step S450).

  FIG. 5 is a flowchart showing the operation of the recording apparatus 200. Referring to FIG. 5, the recording apparatus 200 is activated by an operation of an operation unit (not shown) by the user, and communication from the portable terminal 100 is possible (step S510).

  The control unit 290 manages the communication unit 220, the communication state monitoring unit 250, etc., waits for the occurrence of an event, and performs processing suitable for each event that occurs for each unit of the recording apparatus 200 shown in FIG. Instruct. The event includes a viewing start notification from the mobile terminal 100, a viewing channel change notification from the mobile terminal 100, a viewing state abnormality notification from the mobile terminal 100, a viewing end notification from the mobile terminal 100, and the like. When the processing of each event ends, the recording apparatus 200 enters a standby state in order to wait for the next event to occur. (Steps S520 and S530).

  In step S530, when the communication unit 220 receives the viewing channel information from the mobile terminal 100, the recording device 200 records the same channel as the channel being viewed on the mobile terminal 100 based on the received viewing channel information. To start. The recording method at this time is a recording method in which recording data after a certain period of time is erased sequentially from the oldest, and is hereinafter referred to as “retro recording”. Details of the retro recording will be described later. In addition, the recording device 200 starts polling for the mobile terminal 100 at the same time as starting retroactive recording. In this polling, the recording apparatus 200 confirms the operation status of the mobile terminal 100 at regular intervals (step S531).

  When the viewing channel is changed on the portable terminal 100 in step S530, the recording device 200 receives the changed viewing channel via the communication unit 220. The control unit 290 stops the recording of the channel before the change and starts retroactive recording on the channel after the change. At this time, the polling described in step S531 is similarly executed (steps S532 and S533).

  In step S530, when the viewing state abnormality notification is received from the portable terminal 100, the control unit 290 accumulates the recorded data after the time when the reception is normally completed without erasing (step S534).

  In step S530, the recording apparatus 200 starts polling the mobile terminal 100 at the same time as starting retroactive recording, and the polling operation status of the mobile terminal 100, for example, the operation of receiving a broadcast wave, at regular intervals. Check. When the communication state monitoring unit 250 detects a response from the portable terminal 100 to the operation status confirmation, the control unit 290 waits for the next event as it is. However, if the communication state monitoring unit 250 does not detect a response from the portable terminal 100 within a certain time, the control unit 290 accumulates the recorded data after the last time when the reception was normally performed without erasing ( Steps S535, S536, S537).

  In step S530, when the end of viewing is received from the mobile terminal 100, the recording device 200 ends the recording. (Step S540).

  FIG. 6 shows a processing flow of the entire recording system including the mobile terminal 100 and the recording device 200.

  When the portable terminal 100 receives the digital broadcast and starts viewing, the portable terminal 100 transmits a viewing start notification including information about the viewing channel and the viewing start time to the recording device 200 via the communication unit 120. The recording device 200 that has received the viewing channel information and the like from the mobile terminal 100 records the broadcast of the same channel as the channel being viewed on the mobile terminal 100 based on the viewing channel information. The recording at this time is accumulation of broadcast data by retroactive recording. In addition, the recording device 200 starts polling for the mobile terminal 100 at the same time as starting retroactive recording. This polling is for confirming the operation status of the mobile terminal 100, for example, broadcast reception operation at regular intervals (step S601).

  When changing the viewing channel, the mobile terminal 100 transmits the changed viewing channel to the recording device 200 via the communication unit 120. The recording device 200 that has received the change of the viewing channel changes the channel that is recording (step S602).

  When the mobile terminal state monitoring unit 150 of the mobile terminal 100 detects a state in which it is difficult to continue reception, such as a decrease in the reception level of the broadcast wave or a decrease in the remaining battery level, the mobile terminal 100 stores the viewing record storage unit 160, the channel being viewed and the time when the abnormality was detected are stored, and a notification of the abnormal viewing state is transmitted to the recording apparatus 200 via the communication unit 120. The recording device 200 that has received the communication of the abnormal viewing state finalizes the recording after the past time when the normal reception was confirmed last. Thereby, the recording apparatus 200 does not need to hold extra data, and can use the recorded program storage unit 280 efficiently. The end of the recording in the recording apparatus 200 is dealt with by, for example, acquiring the electronic program guide from the Internet or the like to end the recording at the end timing of the program (step S603).

  When an abnormality is detected by polling the mobile terminal 100, the recording device 200 confirms the recording retroactively to the past in which viewing has been normally confirmed as in step S603. This abnormality is assumed to be an abnormality in the communication path itself between the portable terminal 100 and the recording device 200 due to the movement of the portable terminal 100 to a position where communication is impossible (step S604).

  FIG. 7 shows the processing flow of retroactive recording.

  The recording device 200 starts polling the mobile terminal 100 at the same time as starting retroactive recording. This polling is performed at regular intervals between the recording device 200 and the portable terminal 100.

  The recording block indicates a range of broadcast data that is accumulated while the operation status confirmation notification is transmitted from the recording device 200 to the portable terminal 100 at regular intervals.

  The recording block (A) is broadcast data accumulated from the operation state confirmation notification (1) to the operation state confirmation notification (2) transmitted from the recording device 200 to the portable terminal 100. A predetermined time from the operation status confirmation notification (1) to the operation status confirmation notification (2) is set as a response waiting time.

  Note that, when the mobile terminal 100 receives the operation status confirmation notification (1), the mobile terminal 100 confirms the operation status, and if normal viewing is being performed, transmits the normal viewing notification (1) to the recording device 200.

  Next, when the operation status confirmation notification (2) is transmitted from the recording device 200 to the portable terminal 100, accumulation of broadcast data as the next recording block (B) is started at the same time.

  Here, the recording device 200 deletes the broadcast data of the recording block (A) when receiving the normal viewing-in-progress notification (1) before transmitting the operation status confirmation notification (2). In this way, the recorded data after a certain period of time is deleted sequentially from the oldest.

  Further, in response to the operation status confirmation notification (5) transmitted from the recording device 200 to the portable terminal 100, if the recording device 200 does not receive the normal viewing notification (5) within a predetermined time, the recording block (E ) Broadcast data is not deleted, and the subsequent broadcast data is stored from the recording block (E). More specifically, when the normal viewing notification (5) is not transmitted to the recording device 200, the recording device 200 transmits the next operation status confirmation notification (6) to the mobile terminal 100. That is, since the recording device 200 has not received the normal viewing-in-progress notification (5), the broadcast data of the recording block (E) is accumulated without deleting the broadcast data of the previous recording block. . This corresponds to the part “determining the recording after the past time that was last successfully received” described in step S534 of FIG.

  Note that the recording block to be deleted may be adjusted according to the communication state between the recording device 200 and the portable terminal 100 and the recorded program storage unit 280 of the recording device 200. For example, in response to the operation status confirmation notification (3) transmitted from the recording apparatus 200 to the mobile terminal 100, the timing for deleting the recording data of the recording block (A) is transmitted from the mobile terminal 100 during normal viewing communication (3 ) Is transmitted to the recording apparatus 200, and the recording apparatus 200 receives the normal viewing-in-progress notification (3). That is, it is possible to cope with a method of storing more broadcast data.

  FIG. 8 and FIG. 9 show another retroactive recording process flow.

  In FIG. 7, in response to the operation status confirmation notification (2) transmitted from the recording device 200 to the mobile terminal 100, the normal viewing / listening notification (2) is transmitted from the mobile terminal 100 to the recording device 200. However, it is described that the broadcast data of the recording block (A) is deleted when the normal viewing notice (2) is received. Here, when the recording apparatus 200 receives a viewing state abnormality notice instead of the normal viewing notice (2), the broadcast data of the recording block (B) is accumulated without being deleted (see FIG. 8).

  In addition, when the recording device 200 receives the abnormal viewing state notification after receiving the normal viewing-in-notification (2), the broadcast data of the recording block (A) is deleted, but the broadcast data after the recording block (B) is deleted. (See FIG. 9).

  Note that the method described with reference to FIG. 7 can be applied to the adjustment of the recording block to be deleted.

1 is an overall configuration diagram showing an embodiment of a recording system of the present invention. The block diagram which shows the structure of the portable terminal in the embodiment. The block diagram which shows the structure of the video recording apparatus in the embodiment. The flowchart which shows operation | movement of the portable terminal in the embodiment. 6 is a flowchart showing the operation of the recording apparatus in the embodiment. FIG. 2 is an overall process flow diagram of a recording system including a mobile terminal and a recording apparatus in the embodiment. The figure which shows the processing flow of retroactive recording in the embodiment. The figure which shows the processing flow of the other retro recording in the embodiment. The figure which shows the processing flow of the other retro recording in the embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Mobile terminal 110 Broadcast wave receiving part 120 Communication part 140 Image | video display and audio | voice output part 150 Portable terminal state monitoring part 160 Viewing record memory | storage part 180 Operation part 190 Control part 200 Recording apparatus 210 Broadcast wave receiving part 220 Communication part 240 External output terminal 250 Communication Status Monitoring Unit 260 Reservation Information Storage Unit 280 Recorded Program Storage Unit 290 Control Unit 300 Various Communication Means 400 Display Device

Claims (6)

A recording device that periodically transmits an operation status confirmation notification for confirming whether broadcast viewing conditions are satisfied for a mobile terminal capable of receiving digital broadcasting to the mobile terminal;
Receiving the operation status confirmation notification, determining whether the broadcast viewing condition is satisfied, and when the broadcast viewing condition is satisfied, the portable terminal returns a response notification to the recording device In the recording system,
The recording device does not store the digital broadcast received at the predetermined time when the response time from the transmission of the operation status confirmation notification to the reception of the response notification is within a predetermined time, When the response time is not within a predetermined time, the digital broadcasting received at the predetermined time is stored. The recording system according to claim 1,
Since the broadcast viewing condition is not satisfied, when the mobile terminal transmits a viewing state abnormality notification to the recording device,
The recording system stores the digital broadcast received at the predetermined time including the time when the viewing state abnormality notification is received. In a recording apparatus that periodically transmits an operation status confirmation notification for confirming whether a broadcast viewing condition is satisfied for a mobile terminal capable of receiving digital broadcasting to the mobile terminal,
After transmitting the operation status confirmation notification, receiving a response notification transmitted from the mobile terminal when the broadcast viewing condition is satisfied,
If the response time from the transmission of the operation status confirmation notification to the reception of the response notification is within a predetermined time, the digital broadcast received at the predetermined time is not stored and the response time is predetermined. If it is not within the predetermined time, the digital broadcast received at the predetermined time is stored. The recording apparatus according to claim 3, wherein
Since the broadcast viewing condition is not satisfied, when the mobile terminal transmits a viewing state abnormality notification to the recording device,
The recording apparatus, wherein the digital broadcast received at the predetermined time including the time when the viewing state abnormality notification is received is stored. A recording device that periodically transmits an operation status confirmation notification for confirming whether broadcast viewing conditions are satisfied for a mobile terminal capable of receiving digital broadcasting to the mobile terminal;
Receiving the operation status confirmation notification, determining whether the broadcast viewing condition is satisfied, and when the broadcast viewing condition is satisfied, the portable terminal returns a response notification to the recording device In the recording system,
The recording device includes a communication unit that transmits the operation status confirmation notification;
When the operation status confirmation notification is transmitted to the portable terminal and the response notification returned from the portable terminal is received, a response time from the transmission of the operation status confirmation notification to the reception of the response notification is set. A communication status monitoring unit to be measured;
If the response time is within a predetermined time when the operation status confirmation notification is transmitted and the response notification returned in response to the operation status confirmation notification of the recording device is received, the predetermined time A controller that determines that the digital broadcast received at the predetermined time is stored when the received digital broadcast is not stored and the response time is not within a predetermined time.
The mobile terminal receives the operation status confirmation notification, and returns a response notification to the recording device;
A portable terminal state monitoring unit that determines whether the broadcast viewing condition of the portable terminal is satisfied;
When receiving the operation status confirmation notification, the mobile terminal state monitoring unit determines whether the broadcast viewing condition is satisfied, and when the broadcast viewing condition is satisfied, a control unit that returns the response notification; A recording system comprising: The recording system according to claim 5, wherein
Since the broadcast viewing condition is not satisfied, when the mobile terminal transmits a viewing state abnormality notification to the recording device,
The recording system stores the digital broadcast received at the predetermined time including the time when the viewing state abnormality notification is received.

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