JP2009260727A - Television receiver, and electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a television receiver which turns off main power supplies of other electronic apparatuses connected thereto when it turns off a main power supply of itself by a sleep timer function. <P>SOLUTION: When a timer counts the time set at a sleep timer by a remote controller, a control section 7 turns off a main power supply of its own apparatus after outputting a control signal for turning off a main power supply to other electronic apparatuses. The control signal output from the control section 7 is transmitted to other electronic apparatuses such as a hard disc recorder or the like via a transmission section 21 and an HDMI cable to turn off the main power supplies of those electronic apparatuses. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a television receiver and an electronic device having a sleep timer function.

  Conventionally, in electronic devices such as television receivers, those equipped with a timer that counts time and a so-called sleep timer function that turns off the main power of the device when a predetermined time has elapsed is doing. In recent electronic devices such as television receivers, cables conforming to HDMI (High-Definition Multimedia Interface) standards are used for connection to devices such as hard disk recorders and AV digital amplifiers. . HDMI can transmit digital video signals and audio signals, and can also transmit control signals to each other between connected devices.

  By the way, in the broadcast receiving apparatus, as shown in Patent Document 1, the function of turning off the main power of an external device such as a receiver when broadcasting reception ends is shown. Patent Document 2 discloses a technique related to power control of an electronic device connected by an IEEE 1394 interface bus. Patent Document 3 discloses a timer control method in which timer control of a plurality of electronic devices can be controlled by a single device.

JP 2007-166638 A JP 2002-344845 A JP 2002-139588 A

  However, even if the technology disclosed in any of the above patent documents is applied to a television receiver, when the main power of the television receiver is turned off by the sleep timer function, an electronic device connected by an HDMI cable is used. The main power supply of the device could not be turned off, and the electronic device consumed power unnecessarily.

  The present invention has been made to solve the above-described problems. When the main power of the television receiver is turned off by the sleep timer function, the main power of other electronic devices connected by the HDMI cable is turned off. An object of the present invention is to provide a television receiver that can save power in the entire AV system including the connected electronic devices and an electronic device having a function equivalent to this. To do.

In order to achieve the above object, the invention of claim 1
Time counting means for counting the time, sleep timer setting means for setting the time of the sleep timer, and power control for turning off the main power when the time counting means counts the time set by the sleep timer setting means In an electronic device comprising means and an interface for connecting to another electronic device,
When the time counting unit counts the time set by the sleep timer setting unit, the power control unit controls a control signal for turning off the main power of the electronic device to another electronic device connected by the interface. Is output via the interface, and then the main power of its own is turned off.

The invention of claim 2 is a receiving means for receiving a broadcast signal, a video / audio output means for outputting video and audio based on the received broadcast signal, a time counting means for counting time, and a time of a sleep timer. A sleep timer setting means for setting, a power control means for turning off the main power when the time counting means counts the time set by the sleep timer setting means, and an interface for connecting to another electronic device; In a television receiver equipped with
When the time counting unit counts the time set by the sleep timer setting unit, the power control unit controls a control signal for turning off the main power of the electronic device to another electronic device connected by the interface. Is output via the interface, and then the main power of its own is turned off.

The invention of claim 3 is the television receiver according to claim 2,
The interface is a high-definition multimedia interface (HDMI).

  According to the invention of claim 1, when the time counting means counts the time set by the sleep timer setting means, the power supply control means outputs a control signal for turning off the main power supply to another electronic device. Thereafter, since the main power supply of the device is turned off, useless power consumption of other electronic devices can be prevented. Further, the user can arbitrarily set the sleep timer time by the sleep timer setting means, and can substantially set the sleep timers of a plurality of electronic devices at the same time, so that the usability of the electronic device is improved. .

  According to the invention of claim 2, the same effect as that of claim 1 can be obtained in the television receiver.

  According to the invention of claim 3, since the control signal is output using HDMI widely used in the television receiver, the television receiver of claim 2 can be realized with a simple and inexpensive configuration. .

  An embodiment for carrying out the present invention will be described with reference to the drawings. FIG. 1 shows the internal configuration of a television receiver equipped with an audio output device. The television receiver 1 includes a tuner (receiving means) 2 that receives a television broadcast signal, a decoder 3 that demodulates the broadcast signal received by the tuner 2, and a video signal and an audio that are demodulated by the decoder 3. A video / audio signal processing unit 4 that is separated into signals, a video output unit (video / audio output means) 5 having a monitor screen that outputs the video signal separated by the video / audio signal processing unit 4, and a video / audio signal processing unit 4 Necessary for the operation of the audio output unit (video / audio output unit) 6 having a speaker for outputting the audio signal separated by the above, a control unit (power source control unit) 7 such as a CPU for controlling each unit, and the control unit 7 A memory 8 for storing various information, a remote control device (sleep timer setting means) 9 capable of remotely inputting various commands to the control unit 7, and a remote control device 9 An infrared receiving unit 10 that receives an outside line signal, converts it into an electrical signal, and outputs it to the control unit 7; a timer (time counting means) 11 that counts time; and HDMI communication for communicating with an electronic device such as the hard disk recorder 100 Part 12. The HDMI communication unit 12 is connected to the HDMI communication unit 112 of the hard disk recorder 100 via the HDMI cable 20, and transmits and receives video signals, audio signals, and control signals.

  The tuner 2 receives an analog broadcast signal and a digital broadcast signal. The video / audio signal processing unit 4 processes the digital broadcast signal from the analog broadcast signal received by the tuner 2 and the digital broadcast signal demodulated by the decoder 3. Based on the command signal output from the control unit 7, the video output unit 5, for example, 16: 9 full mode, 16: 9 cinema mode, 16: 9 expanding mode, 4: 3 sidebar mode, 4: 3 full An image can be displayed in a screen mode such as a mode, 4: 3 cinema mode, or the like.

  The control unit 7 has a so-called sleep timer function that turns off the main power supply of the television receiver 1 when a time set by the user has elapsed. The user can set the time of the sleep timer by operating the remote control device 9 before going to bed. The time of the sleep timer set via the remote control device 9 is counted by the timer 11.

  FIG. 2 shows a configuration of the HDMI communication unit 12 of the television receiver 1 and the HDMI communication unit 112 of the hard disk recorder 100. The HDMI communication unit 12 includes a receiving unit 21 for receiving a video signal, an audio signal, and the like from the hard disk recorder 100 and an EDIDROM 22 that stores EDID (Extended Display Identification Data) related to the television receiver 1. On the other hand, the HDMI communication unit 112 of the hard disk recorder 100 includes a transmission unit 121 for receiving a video signal or the like in the television receiver 1.

  The video signal and audio signal output from the control unit 107 of the hard disk recorder 100 are encrypted by the transmission unit 121 to request copyright protection, and TMDS (Transition Minimized Differential Signaling) channel 0 and TMDS channel of the HDMI cable 20 1. It is sent to the television receiver 1 via the TMDS channel 2 line. Further, a clock signal is sent to the television receiver 1 via the TMDS clock channel line of the HDMI cable 20. The reception unit 21 of the television receiver 1 receives the encrypted video signal and audio signal reception, decrypts them, and sends them to the control unit 7. The video signal and audio signal reception is transferred from the control unit 7 to the video / audio signal processing unit 4 and the like, and video and audio are output from the video output unit 5 and the audio output unit 6.

  The EDID of the television receiver 1 stored in the EDIDROM 22 is transmitted to the HDMI communication unit 112 of the hard disk recorder 100 via the display data channel line. In addition, between the HDMI communication unit 12 of the television receiver 1 and the HDMI communication unit 112 of the hard disk recorder 100, control signals for controlling each device are mutually transmitted and received via a CEC (Consumer Electronics Control) line. The

  The television receiver 1 according to the present embodiment has a function of turning off the main power of an electronic device such as the hard disk recorder 100 connected via the HDMI cable 20 when the main power is turned off by the sleep timer. I have.

  FIG. 3 shows the operation of the control unit 7 of the television receiver 1 when operated by the sleep timer function. When the specified time elapses after the sleep timer is started (YES in # 1), the control unit 7 turns off the main power supply of the television receiver 1 to the video output unit 5 via the video / audio signal processing unit 4. Is displayed on the OSD (on-screen display) (# 2). Thereafter, a system standby command is issued to the electronic device connected via the HDMI cable 20, that is, the hard disk recorder 100 in FIG. 1 (# 3), and the main power supply of the television receiver 1 is turned off. This system standby command is a command for turning off the main power supply of the hard disk recorder 100, and is transmitted to the HDMI communication unit 112 of the hard disk recorder 100 via the CEC line. The operation of the hard disk recorder 100 that has received the system standby command will be described later. In # 4, after confirming that the main power supply of the hard disk recorder 100 is turned off, the control unit 7 may turn off the main power supply of the television receiver 1. Since the normal control unit 7 regularly transmits a command for confirming the operation state of the hard disk recorder 100, when the reply from the hard disk recorder 100 is not received, the main power of the hard disk recorder 100 is turned off. Can be confirmed.

FIG. 4 shows the operation of the control unit 107 of the hard disk recorder 100 that has received the system standby command from the television receiver 1. First, the control unit 107 checks whether the hard disk recorder 100 is in a playback or recording state (# 11). If hard disk recorder 100 is in the playback or recording state (YES in # 11), the process is terminated without turning off the main power of hard disk recorder 100. In this case, the reproduction or recording process is continued as it is, and the recording process of the hard disk recorder 100 is not stopped by the sleep timer function of the television receiver 1. In addition, for example, even when the hard disk recorder 100 is connected to a plurality of television receivers and the like and a video or the like is reproduced with respect to other television receivers, the reproduction process does not stop. If the hard disk recorder 100 is not in the playback or recording state (NO in # 11), the main power is turned off (# 12).

  As described above, according to the television receiver 1 of the present embodiment, when the timer 11 counts the time set by the remote controller 9, the control unit 7 controls other electronic devices such as the hard disk recorder 100. After the system standby command, that is, the control signal for turning off the main power supply is output, the main power supply of the device is turned off, so that unnecessary power consumption of other electronic devices can be prevented. Further, the user can arbitrarily set the time of the sleep timer by the remote control device 9 and can set the sleep timers of a plurality of electronic devices connected to the television receiver 1 at one time. The usability of the equipment is improved. In addition, since the control signal is transmitted to another electronic device using HDMI widely used in the television receiver, the configuration of the television receiver can be made inexpensive.

  The present invention is not limited to the configuration of the above embodiment, and at least when the timer 11 counts the time set by the remote control device 9, the control unit 7 turns off the main power to other electronic devices. After the control signal is output, the main power supply may be turned off. The present invention is not limited to a television receiver, and can be widely applied to electronic devices that can be connected to each other. In this case, the connection between the electronic devices is not limited to that via HDMI, but may be made by, for example, a wireless LAN or a unique communication standard.

The figure which shows the structure of the television receiver by embodiment of this invention. The block diagram which shows the structure of the HDMI communication part of a television receiver, and the HDMI communication part of a hard-disk recorder. The flowchart which shows operation | movement of the control part of a television receiver when operate | moving by a sleep timer function. The flowchart which shows operation | movement of the control part of the hard-disk recorder which received the system standby command from the television receiver.

Explanation of symbols

1 Television receiver (electronic equipment)
7 Control unit (power control means)
9 Remote control device (sleep timer setting means)
11 Timer (time counting means)
12 HDMI communication unit 20 HDMI cable

Claims (3)

Time counting means for counting the time, sleep timer setting means for setting the time of the sleep timer, and power control for turning off the main power when the time counting means counts the time set by the sleep timer setting means In an electronic device comprising means and an interface for connecting to another electronic device,
When the time counting unit counts the time set by the sleep timer setting unit, the power control unit controls a control signal for turning off the main power of the electronic device to another electronic device connected by the interface. Is output via the interface, and then the main power supply of the electronic device is turned off. Receiving means for receiving a broadcast signal, video / audio output means for outputting video and audio based on the received broadcast signal, time counting means for counting time, and sleep timer setting means for setting the time of a sleep timer A television receiver comprising: power control means for turning off a main power supply when said time counting means counts the time set by said sleep timer setting means; and an interface for connecting to another electronic device In
When the time counting unit counts the time set by the sleep timer setting unit, the power control unit controls a control signal for turning off the main power of the electronic device to another electronic device connected by the interface. Is output via the interface, and then the main power supply of the television receiver is turned off.   The television receiver according to claim 2, wherein the interface is a high-definition multimedia interface (HDMI).

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