JP2010098576A - Video recording system and tv receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a video recording system reducing power in standby as a video recording system including a TV receiver and a recorder. <P>SOLUTION: This TV receiver 10 for connecting a recorder 20 thereto is equipped with: power supply means 111-113 to supply power to the recorder; a reception means 110 to receive a remote control signal for the recorder; a control means 101 to control the power supply means based on the remote control signal received by the reception means, and to generate a command signal to the recorder; and an interface means 107 to supply the command signal to the recorder. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a video recording system including a TV receiver and a recorder, and more particularly to a TV receiver.

  Many electrical products consume standby power to enable remote control operation even when the power is off. Various proposals have been made to reduce this standby power. For example, a recording apparatus has been proposed in which all set recording reservations are executed and then the external power supply is cut off (see, for example, Patent Document 1). Also, in a system in which an AV device such as a TV and a recorder is connected with two or more interfaces, standby power is reduced by using one interface with low power consumption during standby and suppressing power consumption at the other interface. Some have reduced consumption (for example, see Patent Document 2).

  Moreover, although it is not what suppresses standby | standby electric power, what is called a power supply control apparatus which remotely operates the power supply of a to-be-powered control apparatus also exists (for example, refer patent document 3).

  Further, there is one that controls on / off of a light projection lamp of a liquid crystal projector according to the presence or absence of a video signal (see, for example, Patent Document 4).

JP 2007-35127 A JP 2008-34907 A JP 2000-92092 A Japanese Patent Laid-Open No. 7-210986

  Conventional TV receivers and recorders that support digital broadcasting are configured to periodically acquire program information in order to enable the use of an electronic program guide called EPG (Electric Program Guide). For this reason, in this type of TV receiver or recorder, power is periodically turned on even in a standby state, and relatively large power is consumed.

  However, the power consumed to acquire the program information and the standby power required to enable acquisition of the program information cannot be reduced even by using the techniques described in Patent Documents 1 to 4. .

  Therefore, an object of the present invention is to provide a video recording system that can reduce standby power as a video recording system including a TV receiver and a recorder.

  A first aspect of the present invention is a video recording system including a TV receiver and a recorder connected to the TV receiver, wherein the TV receiver supplies power to the recorder, and the recorder Receiving means for receiving a remote control signal, control means for controlling the power supply means based on the remote control signal received by the receiving means and generating a command signal for the recorder, and sending the command signal to the recorder And supplying interface means.

  Further, the second gist of the present invention is that in the TV receiver, the power supply means for supplying power to the recorder, the receiving means for receiving the recorder remote control signal, and the remote control signal received by the receiving means. The power supply means is controlled based on the control means for generating a command signal for the recorder, and interface means for supplying the command signal to the recorder.

  According to the present invention, in a video recording system including a TV receiver and a recorder, the TV receiver capable of receiving a remote control signal for the recorder controls the power supply to the recorder, so that the recorder can stand by. Electric power can be reduced. Thereby, standby power as the whole video recording system can be reduced.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a block diagram showing a schematic configuration of a video recording system according to the first embodiment of the present invention.

  The illustrated video recording system includes one TV receiver 10 and one recorder 20. An antenna 30 is connected to the TV receiver 10 and the recorder 20 in common.

  The TV receiver 10 includes a control unit 101, a tuner unit 102, an AV decoder unit 103, a display unit 104, a video input unit 105, a signal determination unit 106, a cooperative I / F unit 107, a timer unit 108, a storage unit 109, and a user I. / F unit 110, power supply unit 111, AC output unit 112, and switch 113.

  The control unit 101 controls the overall operation of the TV receiver 101. Further, the control unit functions as a control unit that generates a command signal for realizing cooperation with the recorder 20.

  The tuner unit 102 selects a signal of an arbitrary channel from the received signal received by the antenna 30 based on an instruction from the control unit 101.

  The AV decoder unit 103 decodes the stream from the tuner unit 102 or the video input unit 105 and converts it into video data that can be displayed on the display unit 104.

  The display unit 11 includes a liquid crystal panel, for example, and displays video based on video data from the AV decoder unit 103.

  The video input unit 105 receives a video signal input from the recorder 20. The video input unit 105 includes, for example, an HDMI terminal to which an HDMI cable is connected.

  The signal determination unit 106 determines whether a video signal is input to the video input unit 105 and notifies the control unit 101 of it. For example, as shown in FIG. 2, the signal determination unit 106 includes a counter 41 and an RS flip-flop 42. The counter 41 receives the video clock signal from the video input unit 105 at its clock input terminal 43, counts the number of pulses, and outputs the count result. The count result from the counter 41 is input to the set terminal of the flip-flop 42. A reset signal from the control unit 101 is supplied to the reset terminals of the counter 41 and the RS flip-flop 42. When the reset signal is supplied to the counter 41 and the RS flip-flop 42, the output of the counter 41 once becomes “0”, and the output Q of the RS flip-flop also becomes “0”. Thereafter, if the video clock signal exists, the output 41 of the counter 41 becomes “1”, and the output of the counter 41 once becomes “1”. Thus, the control unit 101 can determine the presence / absence of a video signal based on the output of the signal determination unit 106 after outputting the reset signal to the signal determination unit 106.

  The cooperative I / F unit 107 is a general-purpose I / F such as IEEE1394 or USB that communicates with the recorder 20, and functions as an interface unit for supplying a command signal to the recorder.

  The timer unit 108 notifies the control unit 23 of the recording reservation start and end times.

  The storage unit 109 is information storage means for storing information such as EPG, and includes a RAM, a ROM, and the like.

  The user I / F unit 109 is a receiving unit that receives both the infrared remote control signal for the TV receiver and the infrared remote control signal for the recorder, and notifies the control unit 101 of the received signal.

  The power supply unit 111 supplies power to each unit of the TV receiver 10 by performing voltage conversion or the like as necessary, and supplies AC power to the decoder 111.

  The AC output unit 112 is a power supply terminal that supplies AC power supplied from the power supply unit 111 to the decoder 111.

  The switch 112 is connected between the power supply unit 111 and the AC output unit 112, and controls on / off of AC power supplied to the decoder by on / off control from the control unit 101. The power supply unit 111, the AC output unit 112, and the switch 112 function as a power supply unit that supplies AC power to the recorder 20.

  On the other hand, the recorder 20 includes a control unit 201, a tuner unit 202, an AV decoder unit 203, an AV output unit 204, a linkage I / F unit 205, a storage unit 206, a user I / F unit 207, a recording unit 208, and a power supply unit 209. have.

  The control unit 201 controls the overall operation of the recorder 20.

  The tuner unit 202 selects a signal of an arbitrary channel from the received signal received by the antenna 30 based on an instruction from the control unit 201.

  The AV decoder unit 203 decodes the stream from the tuner unit 202 and supplies the decoded stream to the AV output unit 204.

  The AV output unit 204 outputs the signal decoded by the AV decoder unit 203 to the TV receiver 10 as a video signal. The AV output unit 204 includes an HDMI terminal to which, for example, an HDMI cable is connected.

  The cooperative I / F unit 205 is a general-purpose I / F such as IEEE1394 or USB that performs communication with the TV receiver 10.

  The storage unit 206 is a RAM or ROM that stores information such as EPG.

  The user I / F unit 207 receives the infrared remote control signal for the recorder and notifies the control unit 201 of it.

  The recording unit 208 is an HDD or ODD that records recording data.

  The power supply unit 209 supplies AC power supplied from the outside to each unit of the recorder by performing voltage conversion or the like as necessary.

  Next, the operation of the video recording system of FIG. 1 will be described with reference to the flowchart of FIG.

  When an operation for turning on the power of the recorder 20 using the infrared remote controller is performed, if the recorder 20 is connected to a commercial power supply and is in a standby state, the power of the recorder 20 is turned on. However, in the video recording system according to the present embodiment, the power supply unit 209 of the recorder 20 is connected to the AC output unit 112 of the TV receiver 10. And, when necessary, the AC power is not supplied to the recorder 20 unexpectedly. For this reason, the recorder 20 cannot receive the remote control signal.

  On the other hand, the user I / F unit 110 of the TV receiver 10 receives not only the remote control signal for the TV receiver 10 but also the remote control signal for the recorder. When the user I / F unit 110 of the TV receiver 10 receives a remote control signal instructing to turn on the power of the recorder 20, the user I / F unit 110 notifies the control unit 101 of the reception. When the control unit 101 determines that the received remote control signal is an instruction to turn on the power of the recorder 20 (YES in step S301), the control unit 101 controls the switch 113 to convert the AC power from the power supply unit 111 into the AC output unit 112. To the power supply unit 209 of the recorder 20. In addition, the control unit 101 generates a command signal that instructs the recorder 20 to turn on the power, and transmits the command signal to the recorder 20 via the cooperative I / F unit 107.

  When the power supply unit 209 receives the AC power supply from the TV receiver 10, the recorder 20 enters a standby state. Thereafter, when a command signal instructing power-on from the TV receiver 10 is received via the cooperative I / F unit 205, the control unit 201 of the recorder 20 sets the recorder 20 in a power-on state (step S307). .

  Further, when the control unit 101 of the TV receiver 10 detects that the video signal is output from the recorder 20, the control unit 101 determines that the recorder 20 is in a power-on state (not in a standby state). The power is not cut off (YES in step S302).

  Further, based on the notification from the timer unit 108, the control unit 101 of the TV receiver 10 notifies the recorder 10 when a predetermined time (for example, 1 to 3 minutes) before the scheduled recording start time (YES in step S <b> 303). AC power supply is performed, and power-on is instructed (step S308). Further, the control unit 101 of the TV receiver 10 generates and transmits command signals for instructing channel selection, recording start and recording end based on the recording reservation information stored in the storage unit 109 (steps S309 to S313). .

  The recorder 20 performs reserved recording according to a command signal from the TV receiver. That is, the control unit 201 instructs the tuner unit 202 to select a channel. The control unit 201 records the decoded data from the AV decoder unit 203 in the recording unit 208 in accordance with the recording start instruction, and ends the recording in accordance with the recording end instruction.

  The recording reservation information is stored in the storage unit 109 of the TV receiver 10 by an operation on the recorder 20 using an infrared remote controller. In other words, if the user performs a recording reservation operation for the recorder 20 while watching the content displayed on the display unit 104 of the TV receiver 10, the reservation information of the TV receiver 10 replaces the recorder 20 or together with the recorder 20. Recording reservation information corresponding to the operation is generated and stored in the storage unit 109.

  The control unit 101 of the TV receiver 10 also determines whether the power supply of the recorder 20 is in an unnecessary state (step S304). That is, it detects that the recorder 20 is turned on even though there is no video input and the reservation disclosure time is not approaching (step S304).

  When it is determined that the scheduled recording is completed or the power is turned on unnecessarily (YES in step S304), the control unit 101 of the TV receiver stops the AC power supply to the recorder 20 (the power is turned off). ) When the control unit 101 determines that the power to the recorder 20 is ready to be turned off (YES in step S305), the control unit 101 controls the switch 113 to stop the AC power supply to the recorder 20 (power is turned off) (step S306).

  As described above, in the video recording system according to the present embodiment, the AC power supply to the recorder 20 is controlled by the TV receiver 10, so that the standby power of the recorder 20 can be reduced. Specifically, even when scheduled recording is performed, power is supplied only during the time period required for the recording (from a predetermined time before the recording starts until the power is ready after the recording ends) It is possible to reduce the waiting time until the start of recording after setting the recording reservation to a predetermined time before starting the recording. Also, the EPG update necessary for recording reservation is performed only by the TV receiver 10, and if necessary, the recorder 20 notifies the recorder 20 when the power of the recorder 20 is turned on. There is no need to periodically introduce it.

  Next, a video recording system according to the second embodiment of the present invention will be described. The configuration of the video recording system according to the present embodiment is the same as that of the video recording system according to the first embodiment.

  FIG. 4 shows a flowchart for explaining the operation of the video recording system according to the present embodiment. The difference from the flowchart of FIG. 3 is that step S401 for performing EPG information transmission is provided after step S301.

  While the power is off, the recorder 20 cannot update the EPG information. Therefore, the control unit 101 of the TV receiver 10 immediately transmits the latest EPG information possessed by the TV receiver 10 to the recorder 20 after the recorder 2 is turned on. If the EPG information is updated while the video signal from the recorder 20 is being input to the TV receiver 10 (YES in step S302), the control unit 101 of the TV receiver 10 displays the latest EPG information. Transmit to the recorder 20. When the control unit 201 of the recorder 20 receives the EPG information via the cooperation I / F unit 205, the control unit 201 stores the received EPG information in the storage unit 206. Thereby, the recorder 20 can hold the latest EPG information while the power is turned on.

  In the first and second embodiments, the TV receiver 10 instructs the recorder 20 to start and end the reserved recording. However, the TV receiver 10 controls the supply of AC power to the recorder 20. The start and end control of reserved recording may be performed on the recorder side.

  Next, a third embodiment of the present invention will be described with reference to FIG.

  The video recording system according to the present embodiment has one TV receiver 10-1 and a plurality of recorders 20.

  The configuration of the TV receiver 10-1 is substantially the same as that of the TV receiver 10 of the video recording system according to the first embodiment, but includes a plurality of AC output units 112 and switches 113. Is different. The plurality of recorders 20 are configured to be controlled by different types of remote control signals. The storage unit 109 of the TV receiver 10-1 stores correspondence information indicating the correspondence between the AC output unit 112 and the type of remote control signal corresponding to the recorder 20 connected thereto. The control unit 101 of the TV receiver 10-1 determines to which recorder 20 the remote control signal received by the user I / F unit 110 is based on other correspondence information stored in the storage unit 109, and a plurality of recorders. Power control for 20 is performed individually.

1 is a block diagram showing a schematic configuration of a video recording system according to a first embodiment of the present invention. It is a block diagram which shows the internal structure of the signal discrimination | determination part contained in the video recording system of FIG. 2 is a flowchart for explaining the operation of the video recording system of FIG. 1. It is a flowchart for demonstrating operation | movement of the video recording system which concerns on the 2nd Embodiment of this invention. It is a block diagram which shows the structure of the video recording system which concerns on the 3rd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 TV receiver 20 Recorder 30 Antenna 101 Control part 102 Tuner part 103 AV decoder part 104 Display part 105 Image | video input part 106 Signal discrimination | determination part 107 Cooperation I / F part 108 Timer part 109 Storage part 110 User I / F part 111 Power supply part DESCRIPTION OF SYMBOLS 112 AC output part 113 Switch 201 Control part 202 Tuner part 203 AV decoder part 204 AV output part 205 Cooperation I / F part 206 Storage part 207 User I / F part 208 Recording part 209 Power supply part

Claims (16)

In a video recording system including a TV receiver and a recorder connected to the TV receiver,
The TV receiver controls the power supply means based on the remote control signal received by the reception means for receiving the remote control signal for the recorder, the power supply means for supplying power to the recorder, and the remote control signal for the recorder A video recording system comprising: control means for generating a command signal for the recorder; and interface means for supplying the command signal to the recorder.   When the remote control signal is a power-on signal, the control unit controls the power supply unit to start power supply to the recorder, and then supplies a signal indicating power-on to the recorder as the command signal The video recording system according to claim 1. The TV receiver further includes information storage means for storing information,
When the remote control signal is a recording reservation signal, the control means generates recording reservation information based on the recording reservation signal and stores the recording reservation information in the information storage means, and stores the recording reservation information in the information storage means. 3. The video recording system according to claim 1, wherein the power supply means is controlled based on the command signal and the command signal is generated.   The control means starts power supply to the recorder based on a recording start time included in the recording reservation information, and controls the power supply means to end the power supply based on a recording end time. The video recording system according to claim 3.   5. The video according to claim 4, wherein the control means controls the power supply means to start power supply to the recorder at a time earlier than the recording start time by a predetermined time. Recording system.   The control unit determines whether or not a predetermined power-off condition is satisfied after the recording end time, and controls the power supply unit to end the power supply when the power-off condition is satisfied The video recording system according to claim 4, wherein the video recording system is a video recording system.   The video recording system according to claim 6, wherein the control unit determines whether the video signal output from the recorder is supplied to the TV receiver as one of the power-off conditions. The power supply means has a plurality of power supply terminals,
By storing correspondence information indicating a correspondence relationship between the type of the remote control signal and the plurality of power supply terminals in the information storage unit,
The video recording system according to any one of claims 1 to 7, wherein the control unit individually controls power supply to a plurality of recorders connected to the plurality of power supply terminals. . Power supply means for supplying power to the recorder;
Receiving means for receiving a remote control signal for the recorder;
Control means for controlling the power supply means based on the remote control signal received by the receiving means and generating a command signal for the recorder;
Interface means for supplying the command signal to the recorder;
A TV receiver characterized by comprising:   When the remote control signal is a power-on signal, the control unit controls the power supply unit to start power supply to the recorder, and then supplies a signal indicating power-on to the recorder as the command signal The TV receiver according to claim 9. It further has information storage means for storing information,
When the remote control signal is a recording reservation signal, the control means generates recording reservation information based on the recording reservation signal and stores the recording reservation information in the information storage means, and stores the recording reservation information in the information storage means. 11. The TV receiver according to claim 9, wherein the power supply means is controlled based on the command signal and the command signal is generated.   The control means starts power supply to the recorder based on a recording start time included in the recording reservation information, and controls the power supply means to end the power supply based on a recording end time. The TV receiver according to claim 11.   13. The TV according to claim 12, wherein the control means controls the power supply means so as to start power supply to the recorder at a time earlier by a predetermined time than the recording start time. Receiving machine.   The control unit determines whether or not a predetermined power-off condition is satisfied after the recording end time, and controls the power supply unit to end the power supply when the power-off condition is satisfied The TV receiver according to claim 12 or 13, characterized in that:   15. The TV receiver according to claim 14, wherein the control unit determines whether the video signal output from the recorder is supplied to the TV receiver as one of the power supply stage conditions. The power supply means has a plurality of power supply terminals,
By storing correspondence information indicating a correspondence relationship between the type of the remote control signal and the plurality of power supply terminals in the information storage unit,
16. The TV receiver according to claim 9, wherein the control unit individually controls power supply to a plurality of recorders connected to the plurality of power supply terminals. .

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