WO2013098881A1 - Electronic device, av amp, power supply control method and program for electronic device - Google Patents

Electronic device, av amp, power supply control method and program for electronic device Download PDF

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Publication number
WO2013098881A1
WO2013098881A1 PCT/JP2011/007300 JP2011007300W WO2013098881A1 WO 2013098881 A1 WO2013098881 A1 WO 2013098881A1 JP 2011007300 W JP2011007300 W JP 2011007300W WO 2013098881 A1 WO2013098881 A1 WO 2013098881A1
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WO
WIPO (PCT)
Prior art keywords
power supply
power
standby mode
unit
mode
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PCT/JP2011/007300
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French (fr)
Japanese (ja)
Inventor
隆 伊豆野
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パイオニア株式会社
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Priority to PCT/JP2011/007300 priority Critical patent/WO2013098881A1/en
Publication of WO2013098881A1 publication Critical patent/WO2013098881A1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
    • G06F1/3215—Monitoring of peripheral devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/325—Power saving in peripheral device
    • G06F1/3278—Power saving in modem or I/O interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • H04N21/4436—Power management, e.g. shutting down unused components of the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/63—Generation or supply of power specially adapted for television receivers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate

Definitions

  • the present invention relates to an electronic device, an AV amplifier, a power control method for an electronic device, and a program capable of switching between a normal operation mode and a standby mode.
  • AV system comprises a source device such as a DVD player, an AV amplifier that outputs a video signal input from the source device to a TV and outputs an audio signal input from the source device to a speaker, and a sink device such as a TV.
  • An AV system is known (see, for example, Patent Document 1).
  • this type of AV system there is an application in which it is desired to easily enjoy the audio signal of the source device by using the audio circuit of the sink device (TV) instead of the audio circuit of the AV amplifier.
  • TV the audio circuit of the sink device
  • an object of the present invention is to provide an electronic device, an AV amplifier, a power control method for an electronic device, and a program that can realize a power saving with a short start-up time.
  • the electronic device of the present invention includes an interface unit for connecting an external device, a power supply state detection unit for detecting a power supply state of the external device, a power supply unit including a main power supply and a sub power supply, and a main power supply and a sub power supply.
  • a normal operation mode in which power is supplied a first standby mode in which power is supplied from the sub power supply to the interface unit, and a main power supply in a standby state in which power is supplied from the sub power supply to the interface unit.
  • a mode switching unit that performs mode switching in the standby mode, and the mode switching unit performs mode switching between the first standby mode and the second standby mode based on the detection result of the power supply state detection unit. It is characterized by performing.
  • a power control method for an electronic device is a power control method for an electronic device including an interface unit for connecting an external device, and a power source unit including a main power source and a sub power source.
  • a power supply state detection step for detecting a state; a normal operation mode in which power is supplied from the main power supply and the sub power supply; a first standby mode in which the main power supply is in a sleep state and power is supplied from the sub power supply to the interface unit;
  • the mode switching unit performs mode switching to the first standby mode when detecting that the external device is in the power ON state during the second standby mode.
  • a first standby mode in which power is supplied to the interface unit (pass-through standby mode) and a second standby mode in which power is not supplied to the interface unit (normal standby mode).
  • Switch according to the power status of the external device Thereby, it is possible to switch to the first standby mode only when the external device is turned on (only when it is necessary to operate the interface unit), and only the first standby mode is provided as the standby mode.
  • the standby power can be reduced as compared with the configuration of “conventional example 2”.
  • the normal standby mode is shifted to the normal operation mode that requires initialization of all the circuits in the electronic device. Since the time required for the initialization process is not required and only the initialization process of the interface unit is required, the startup time can be shortened.
  • the interface unit can connect a plurality of external devices, and the mode switching unit turns off all the external devices connected to the interface unit during the first standby mode. When this is detected, the mode is switched to the second standby mode.
  • the electronic apparatus may further include a power storage unit that can be charged from a sub power source, and in a second standby mode, the electronic device may perform a standby operation by supplying power from the power storage unit.
  • the electronic device further includes a charge control unit that charges the power storage unit from the sub power source periodically or during a user-set time zone.
  • the power supply amount supplied from the sub power source can be zero during the second standby mode.
  • the electricity bill can be reduced.
  • insufficient charging of the power storage unit can be prevented by performing periodic charging.
  • the electronic device further includes a signal input detection unit that detects a signal input from an external device, and the mode switching unit is configured to detect the first standby mode based on detection results of the power state detection unit and the signal input detection unit. The second standby mode is switched.
  • the second standby mode can be switched to the first standby mode only when the external device is in the power-on state and there is a signal input from the external device. This eliminates unnecessary power supply to the interface unit when the external device is in a power-on state but not outputting a signal, compared to a configuration in which mode switching is performed only according to the power state. It is possible to realize power saving.
  • the interface unit can connect an input device that inputs a signal and an output device that outputs a signal, and the power supply state detection unit detects a power supply state of the input device and the output device.
  • the AV amplifier according to the present invention includes each unit in the electronic device, and the external device is a source device that inputs an AV signal that is a video signal and / or an audio signal.
  • the program of the present invention causes a computer to execute each step in the power control method for the electronic device.
  • FIG. 1 is a system configuration diagram of an AV system according to an embodiment of the present invention. It is explanatory drawing which shows the mode switching of this invention.
  • 1 is an internal configuration diagram of an AV amplifier according to a first embodiment.
  • 2 is a functional block diagram of an AV amplifier according to the first embodiment.
  • FIG. It is a flowchart which shows the mode switching process of AV amplifier. It is an internal block diagram of AV amplifier which concerns on 2nd Embodiment. It is explanatory drawing which shows the conventional mode switching.
  • FIG. 1 is a system configuration diagram of an AV system SY according to the present embodiment.
  • the AV system SY includes a plurality of source devices 10 such as a DVD (Digital Versatile Disk) player and a BD (Blu-ray Disc) player, an AV amplifier 20 having an AV center function, and an AV amplifier 20. And a speaker built-in type TV 40 (Television).
  • Each source device 10 and AV amplifier 20, and AV amplifier 20 and TV 40 are connected via HDMI (High-Definition Multimedia Interface, registered trademark) cables 51 and 52.
  • the AV amplifier 20 and each speaker 30 are connected via a speaker cable 53.
  • an example in which three source devices 10 are connected to the AV amplifier 20 is shown, but there may be one or four or more.
  • the plurality of speakers 30 constitutes 5.1ch surround, for example. That is, in the figure, only two speakers 30 are shown, but the number may be larger.
  • the TV speaker 42 incorporated in the TV 40 is stereo-compatible and includes two built-in speakers.
  • the AV amplifier 20 includes each source device 10 and a TV 40 (hereinafter collectively referred to as “external device”) and an interface circuit 21 for inputting and outputting signals.
  • the interface circuit 21 includes a receiver that receives a signal, a selector that switches the source device 10, a transmitter that transmits a signal, and the like (all not shown).
  • the AV amplifier 20 has an audio processing circuit 22 for performing various audio processes.
  • the audio processing circuit 22 includes a power amplifier, a preamplifier (both not shown), and the like.
  • the audio signal processed by the audio processing circuit 22 is output to the speaker 30.
  • the AV amplifier 20 includes a “normal operation mode”, a “pass-through standby mode (first standby mode)” that consumes less power than the normal operation mode, and a “normal standby” that consumes less power than the pass-through standby mode.
  • Mode second standby mode
  • the power consumption in the “pass-through standby mode” is about 1/4 to 3/4 of the power consumption in the “normal operation mode”, and the power consumption in the “normal standby mode” is 1/100 to 1 / 200 or so.
  • the “pass-through standby mode” and the “normal standby mode” are hereinafter collectively referred to as “standby mode” (see the dotted box).
  • the “normal operation mode” is a mode in which a video signal input from the source device 10 is output to the TV 40 and an audio signal input from the source device 10 is output to the speaker 30, and high-quality audio is output. Used when you want to enjoy.
  • the “pass-through standby mode” is a mode in which the video signal and the audio signal input from the source device 10 are output to the TV 40, and is used when the user wants to easily enjoy audio. In the “pass-through standby mode”, audio is output from the TV speaker 42 without using the audio processing circuit 22.
  • the function of passing through the content of the source device 10 to the TV 40 in the “pass-through standby mode” is hereinafter referred to as “pass-through function”.
  • the “normal standby mode” is a mode in which an activation command or the like from a remote controller can be received, and video signals and audio signals are not input / output.
  • the “normal operation mode” and “standby mode” are switched by receiving the PowerOn command or the PowerOff command.
  • the “pass-through standby mode” and the “normal standby mode” are switched according to the power state of the source device 10. For example, when the source device 10 is in a power-on state during the “normal standby mode”, the pass-through function may be used, so the mode is switched to the “pass-through standby mode”. On the other hand, when all the connected source devices 10 are turned off in the “pass-through standby mode”, the mode is switched to the “normal standby mode”.
  • the AV amplifier 20 includes a main power supply P1, a sub power supply P2, a first opening / closing part 23, a second opening / closing part 24, an OR circuit 25, a voltage detection circuit 26, and a startup receiving circuit. 27 and a control circuit 28.
  • the main power supply P1 is, for example, an AC / DC power supply, and supplies power to the sound processing circuit 22.
  • the sub power supply P2 is, for example, an AC / DC power supply or a switching power supply, and supplies power to the interface circuit 21, the activation receiving circuit 27, and the control circuit 28.
  • the main power supply P1 has a larger amount of power supply than the sub power supply P2.
  • the first opening / closing part 23 is a primary side opening / closing part of the main power supply P1, and switches power supply / non-supply from the AC power supply to the main power supply P1.
  • the second opening / closing part 24 is a secondary side opening / closing part of the sub power source P ⁇ b> 2, and switches power supply / non-supply from the sub power source P ⁇ b> 2 to the interface circuit 21.
  • the first opening / closing part 23 and the second opening / closing part 24 incorporate a driving part (not shown) for opening and closing.
  • the voltage detection circuit 26 detects the voltage value of each connected source device 10. When a plurality of source devices 10 are connected, it is detected whether or not the voltage value of at least one source device 10 is equal to or higher than a predetermined value by combination with the OR circuit 25. Specifically, detection is performed using “+5 V Power” supplied from the source device 10.
  • the activation receiving circuit 27 receives a PowerOn command or a PowerOff command by operating the remote control or the operation panel.
  • the control circuit 28 performs overall control of the AV amplifier 20.
  • the detection result of the voltage detection circuit 26 is monitored, the “pass-through standby mode” and the “normal standby mode” are switched, the reception state of the start-up reception circuit 27 is monitored, and the “normal operation mode” and “ Mode switching control such as switching the “standby mode” is performed.
  • the AV amplifier 20 includes a power supply unit 210, an interface unit 220, a power supply state detection unit 230, and a mode switching unit 240 as main functional configurations.
  • the power supply state detection unit 230 and the mode switching unit 240 are functions having the control circuit 28 as a main part.
  • the power supply unit 210 includes a main power supply P1 and a sub power supply P2.
  • a main power supply P1 In the “normal operation mode”, power is supplied from the main power supply P1 and the sub power supply P2.
  • the main power supply P1 In the “pass-through standby mode” and the “normal standby mode”, the main power supply P1 is set in a sleep state, and power is supplied only from the sub power supply P2.
  • the interface unit 220 refers to the interface circuit 21 for connecting external devices (the source device 10 and the TV 40).
  • the power supply state detection unit 230 detects the power supply state of the source device 10 based on the detection result of the voltage detection circuit 26.
  • the mode switching unit 240 performs switching between the three modes shown in FIG. 2 in response to the detection result of the power state detection unit 230 and the reception of the PowerOn command or the PowerOff command. For example, when it is detected that one of the source devices 10 connected to the interface unit 220 is in a power ON state during the “normal standby mode”, the mode is switched to the “pass-through standby mode”. Further, when it is detected during the “pass-through standby mode” that all the connected source devices 10 are turned off, the mode is switched to the “normal standby mode”.
  • the mode switching process by the mode switching unit 240 will be described in more detail with reference to the flowchart of FIG. It is assumed that the AV amplifier 20 is in “normal standby mode” (S00).
  • the control circuit 28 opens the first opening / closing part 23 and the second opening / closing part 24 in the “normal standby mode”.
  • the mode switching unit 240 receives the PowerOn command in the “normal standby mode” (S01: Yes)
  • the mode switching unit 240 switches the mode to the “normal operation mode” (S02).
  • the control circuit 28 sets the first opening / closing part 23 and the second opening / closing part 24 to “closed”.
  • the mode switching unit 240 when the mode switching unit 240 does not receive the PowerOn command (S01: No) and detects that the source device 10 is powered on (S03: Yes), the mode switching unit 240 switches the mode to the “pass-through standby mode” (S04). At this time, the control circuit 28 sets the first opening / closing part 23 to “open” and the second opening / closing part 24 to “closed”. If the power ON of the source device 10 is not detected (S03: No), the process returns to S00.
  • the mode switching unit 240 when the mode switching unit 240 receives the PowerOn command in the “pass-through standby mode” (S05: Yes), the mode switching unit 240 switches the mode to the “normal operation mode” (S02). If the power-on command is not received (S05: No), and the power-off of all connected source devices 10 is detected (S06: Yes), the mode is switched to the “normal standby mode” (S00). Further, when the power supply OFF of all the connected source devices 10 is not detected (S06: No), the process returns to S04.
  • the AV amplifier 20 has two standby modes of “pass-through standby mode” and “normal standby mode”, and when the source device 10 is turned on. Only (when the interface circuit 21 needs to be operated) can be switched to the “pass-through standby mode” mode, and therefore the configuration of “conventional example 2” having only the “pass-through standby mode” as the standby mode (FIG. 7). In comparison with (b), standby power can be reduced. Further, compared with the configuration of “conventional example 1” (see FIG. 7A), which has only “normal standby mode” as the standby mode, it is for shifting from “normal standby mode” to “normal operation mode”. Since no initialization process is required, the startup time can be shortened. That is, it is possible to realize power supply control having both advantages of “conventional example 1” and “conventional example 2”.
  • FIG. 6 is an internal configuration diagram of the AV amplifier 20 according to the second embodiment.
  • the AV amplifier 20 of the present embodiment adds a power storage unit 61 and a charge control unit 62 to the first embodiment (see FIG. 3), and connects the second opening / closing unit 24 to the sub power source P2. It differs in that it is arranged on the primary side.
  • the power storage unit 61 is charged from the sub power source P ⁇ b> 2 via the charge control unit 62. This will be specifically described below.
  • the control circuit 28 monitors the state (voltage value) of the power storage unit 61, and activates the sub power source P ⁇ b> 2 with the second opening / closing unit 24 being “closed” when, for example, the charge request threshold value V ⁇ b> 1 or less is set. As a result, power is also supplied to the charging control unit 62 and charging of the power storage unit 61 is started.
  • the control circuit 28 sets the second opening / closing unit 24 to “open” and the sub power source P2. Is stopped, and the charging control unit 62 is set in a charging stopped state.
  • the control circuit 28 detects that the connected source device 10 is in the power ON state, the power supply to the interface circuit 21 is necessary, so the second opening / closing unit 24 is set to “closed”.
  • the necessary power is supplied from the sub power source P2.
  • the power storage unit 61 and the charge control unit 62 are provided, the amount of power supplied from the AC power source to the inside of the AV amplifier 20 can be reduced to zero during the standby mode. Standby power can be reduced.
  • the charging control unit 62 may charge the power storage unit 61 regularly or during a user-set time zone.
  • the control circuit 28 may be provided with a clock function (timer unit) to perform opening / closing control of the second opening / closing unit 24.
  • a clock function timer unit
  • by performing regular charging it is possible to prevent the power storage unit 61 from being insufficiently charged to hinder standby operation.
  • a manual opening / closing unit (not shown) is provided in parallel with the second opening / closing unit 24 so that the sub power source P2 can be manually activated in preparation for insufficient charging of the power storage unit 61 when it is not charged for a long time. good. According to this configuration, insufficient charging of power storage unit 61 can be prevented more reliably.
  • Mode switching unit 240 performs “pass-through standby” based on detection results of the power supply state detection unit 230 and the signal input detection unit. Mode switching between “mode” and “normal standby mode” may be performed. For example, it is conceivable that the “pass-through standby mode” is set only when at least one of the connected source devices 10 is in a power-on state and inputs a signal to the AV amplifier 20.
  • the power supply state detection unit 230 may detect the power supply state of the TV 40 (output device) as well as the source device 10 (input device).
  • the mode switching unit 240 performs mode switching according to the power state of both the source device 10 and the TV 40.
  • the “pass-through standby mode” can be considered only when at least one of the connected source devices 10 is in a power-on state and the TV 40 is in a power-on state.
  • Modification 1 and Modification 2 may be combined. That is, only when at least one source device 10 among the source devices 10 connected to the AV amplifier 20 is in a power-on state and a signal is input and the TV 40 is in a power-on state, the “pass-through standby mode”. It is also good. According to this configuration, further power saving can be realized as compared with the first and second modifications.
  • the present invention may be applied to an AV receiver, an AV selector, a home theater, and the like. Further, the present invention may be applied not only to devices that handle video signals and audio signals, but also to devices that handle only video signals or only audio signals. Furthermore, the present invention may be applied to other electronic devices that input / output signals (such as control signals) to / from external devices, not devices that handle AV signals that are video signals and / or audio signals.
  • the “external device” of the present invention may be an input device that inputs a signal to the “electronic device”, or may be an output device that outputs a signal from the “electronic device”. .
  • each component of the AV amplifier 20 shown above can be provided as a program.
  • the program can be provided by being stored in various recording media (CD-ROM, flash memory, etc.). That is, a program for causing a computer to function as each component of the AV amplifier 20 and a recording medium on which the program is recorded are also included in the scope of the right of the present invention. Other modifications can be made as appropriate without departing from the scope of the present invention.

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  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
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Abstract

The purpose of the present invention is to provide an electronic device, an AV amp, and a power supply control method and program for the electronic device that are capable of achieving a short start-up time and reduced power consumption. The AV amp (20) of the present invention is provided with: a power supply unit (210) comprising a main power supply and a sub power supply; an interface unit (220) for connecting a source device; a power supply state detection unit (230) for detecting the power state of the source device; and a mode switching unit (240) that switches modes between a "normal operation mode" in which power is supplied from the main power supply and the sub power supply, a "pass-through standby mode" in which the main power supply is set to a halt state and power is supplied to the interface unit (220) from the sub power supply, and a "normal standby mode" in which the main power supply is set to a halt state and power is not supplied to the interface unit (220). The mode switching unit (240) is characterized by switching between the "pass-through standby mode" and the "normal standby mode" on the basis of detection results from the power supply state detection unit (230).

Description

電子機器、ＡＶアンプ、電子機器の電源制御方法およびプログラムElectronic device, AV amplifier, power control method and program for electronic device
　通常動作モードと待機モードの切替が可能な電子機器、ＡＶアンプ、電子機器の電源制御方法およびプログラムに関する。 The present invention relates to an electronic device, an AV amplifier, a power control method for an electronic device, and a program capable of switching between a normal operation mode and a standby mode.
　従来、ＤＶＤプレーヤー等のソース機器と、ソース機器から入力された映像信号をＴＶに出力すると共にソース機器から入力された音声信号をスピーカーに出力するＡＶアンプと、ＴＶ等のシンク機器と、から成るＡＶシステムが知られている（例えば、特許文献１参照）。この種のＡＶシステムでは、ソース機器の音声信号を、ＡＶアンプの音声回路ではなく、シンク機器（ＴＶ）の音声回路を使って手軽に楽しみたいといった用途がある。このときＡＶアンプを起動して通常動作モードにするにはＡＶアンプの全ての回路ブロックの初期化が必要となり、これにかかる時間は短くなかった。近年このような用途に向けてソース機器の信号をシンク機器に中継するインターフェース以外の回路ブロックを待機状態としインターフェース回路ブロックは常時通電状態とするパススルー待機モードを持たせることにより、ＡＶアンプのパススルー用途時の起動時間の問題を解消するものがある。 Conventionally, it comprises a source device such as a DVD player, an AV amplifier that outputs a video signal input from the source device to a TV and outputs an audio signal input from the source device to a speaker, and a sink device such as a TV. An AV system is known (see, for example, Patent Document 1). In this type of AV system, there is an application in which it is desired to easily enjoy the audio signal of the source device by using the audio circuit of the sink device (TV) instead of the audio circuit of the AV amplifier. At this time, in order to activate the AV amplifier to enter the normal operation mode, it is necessary to initialize all circuit blocks of the AV amplifier, and the time required for this is not short. In recent years, a circuit block other than the interface that relays the signal of the source device to the sink device is set in a standby state, and the interface circuit block has a pass-through standby mode in which the interface circuit block is always energized. There is something that solves the problem of startup time.
特開２００６－３１１２８８号公報JP 2006-311288 A
　ところが本来は、図７(ａ)の「従来例その１」に示すように、通常動作モードと、非常に小さな待機電力で動作する通常待機モード（リモコンなどの起動命令を待機するためのモード）で切り替えられていたものが、図７（ｂ）の「従来例その２」に示すように、通常動作モードとインターフェース回路ブロックを常時動作させ続けるパススルー待機モード（パススルー機能を実現するためのモード）との切替となったために、待機電力が大きいといった新たな問題が出てきた。 However, originally, as shown in “Conventional Example 1” in FIG. 7A, a normal operation mode and a normal standby mode that operates with a very small standby power (a mode for waiting for an activation command from a remote controller or the like). As shown in “Conventional example 2” in FIG. 7B, the normal operation mode and the pass-through standby mode in which the interface circuit block is always operated (a mode for realizing the pass-through function) have been changed. Therefore, a new problem has arisen that standby power is large.
　本発明は、上記の問題点に鑑み、起動時間が短く、且つ省電力化を実現可能な電子機器、ＡＶアンプ、電子機器の電源制御方法およびプログラムを提供することを目的とする。 In view of the above problems, an object of the present invention is to provide an electronic device, an AV amplifier, a power control method for an electronic device, and a program that can realize a power saving with a short start-up time.
　本発明の電子機器は、外部機器を接続するためのインターフェース部と、外部機器の電源状態を検出する電源状態検出部と、メイン電源およびサブ電源を含む電源部と、メイン電源およびサブ電源からの電源供給を行う通常動作モード、メイン電源を休止状態とし、サブ電源からインターフェース部への電源供給を行う第１の待機モード、メイン電源を休止状態とし、インターフェース部への電源供給を行わない第２の待機モード、の中でモード切替を行うモード切替部と、を備え、モード切替部は、電源状態検出部の検出結果に基づいて、第１の待機モードと第２の待機モードのモード切替を行うことを特徴とする。 The electronic device of the present invention includes an interface unit for connecting an external device, a power supply state detection unit for detecting a power supply state of the external device, a power supply unit including a main power supply and a sub power supply, and a main power supply and a sub power supply. A normal operation mode in which power is supplied, a first standby mode in which power is supplied from the sub power supply to the interface unit, and a main power supply in a standby state in which power is supplied from the sub power supply to the interface unit. A mode switching unit that performs mode switching in the standby mode, and the mode switching unit performs mode switching between the first standby mode and the second standby mode based on the detection result of the power supply state detection unit. It is characterized by performing.
　本発明の電子機器の電源制御方法は、外部機器を接続するためのインターフェース部と、メイン電源およびサブ電源を含む電源部と、を備えた電子機器の電源制御方法であって、外部機器の電源状態を検出する電源状態検出ステップと、メイン電源およびサブ電源からの電源供給を行う通常動作モード、メイン電源を休止状態とし、サブ電源からインターフェース部への電源供給を行う第１の待機モード、メイン電源を休止状態とし、インターフェース部への電源供給を行わない第２の待機モード、の中でモード切替を行うモード切替ステップと、を実行し、モード切替ステップは、電源状態検出ステップの検出結果に基づいて、第１の待機モードと第２の待機モードのモード切替を行うことを特徴とする。 A power control method for an electronic device according to the present invention is a power control method for an electronic device including an interface unit for connecting an external device, and a power source unit including a main power source and a sub power source. A power supply state detection step for detecting a state; a normal operation mode in which power is supplied from the main power supply and the sub power supply; a first standby mode in which the main power supply is in a sleep state and power is supplied from the sub power supply to the interface unit; A mode switching step in which the mode is switched in the second standby mode in which the power supply is in a dormant state and power is not supplied to the interface unit, and the mode switching step is based on the detection result of the power state detection step. Based on this, the mode switching between the first standby mode and the second standby mode is performed.
　上記の電子機器において、モード切替部は、第２の待機モード中に、外部機器が電源ＯＮ状態となったことを検出した場合、第１の待機モードへのモード切替を行うことを特徴とする。 In the above electronic device, the mode switching unit performs mode switching to the first standby mode when detecting that the external device is in the power ON state during the second standby mode. .
　これらの構成では、インターフェース部への電源供給を行う第１の待機モード（パススルー待機モード）と、インターフェース部への電源供給を行わない第２の待機モード（通常待機モード）の２つの待機モードを、外部機器の電源状態に応じて切り替える。これにより、外部機器が電源ＯＮ状態となったときだけ（インターフェース部を動作させる必要があるときだけ）第１の待機モードに切り替えることができ、待機モードとして第１の待機モードしか備えていない「従来例その２」の構成と比較して、待機電力を小さくできる。また、待機モードとして第２の待機モードしか備えていない「従来例その１」の構成と比較すると、通常待機モードから電子機器内の全回路の初期化を必要とする通常動作モードへ移行するための初期化処理に要する時間が不要で、インターフェース部の初期化処理だけが必要となるため、起動時間を短縮できる。 In these configurations, there are two standby modes: a first standby mode in which power is supplied to the interface unit (pass-through standby mode) and a second standby mode in which power is not supplied to the interface unit (normal standby mode). Switch according to the power status of the external device. Thereby, it is possible to switch to the first standby mode only when the external device is turned on (only when it is necessary to operate the interface unit), and only the first standby mode is provided as the standby mode. The standby power can be reduced as compared with the configuration of “conventional example 2”. Further, compared with the configuration of “conventional example 1” in which only the second standby mode is provided as the standby mode, the normal standby mode is shifted to the normal operation mode that requires initialization of all the circuits in the electronic device. Since the time required for the initialization process is not required and only the initialization process of the interface unit is required, the startup time can be shortened.
　上記の電子機器において、インターフェース部は、複数の外部機器を接続可能であり、モード切替部は、第１の待機モード中に、インターフェース部に接続されている全ての外部機器が電源ＯＦＦ状態となったことを検出した場合、第２の待機モードへのモード切替を行うことを特徴とする。 In the above electronic device, the interface unit can connect a plurality of external devices, and the mode switching unit turns off all the external devices connected to the interface unit during the first standby mode. When this is detected, the mode is switched to the second standby mode.
　この構成によれば、インターフェース部に複数の端子を備えた電子機器においても、起動時間の短縮および省電力化を図ることができる。 According to this configuration, even in an electronic device having a plurality of terminals in the interface unit, it is possible to shorten the startup time and save power.
　上記の電子機器において、サブ電源から充電可能な蓄電部をさらに備え、第２の待機モード中は、蓄電部からの電源供給によって待機動作することを特徴とする。 The electronic apparatus may further include a power storage unit that can be charged from a sub power source, and in a second standby mode, the electronic device may perform a standby operation by supplying power from the power storage unit.
　上記の電子機器において、定期的またはユーザー設定された時間帯に、サブ電源から蓄電部に充電を行う充電制御部をさらに備えたことを特徴とする。 The electronic device further includes a charge control unit that charges the power storage unit from the sub power source periodically or during a user-set time zone.
　これらの構成によれば、蓄電部を備えているため、第２の待機モード中は、サブ電源から供給される電力供給量をゼロとすることができる。また、例えば深夜帯に蓄電部への充電を行うことで、電気代を抑えることができる。さらに、定期充電を行うことで、蓄電部の充電不足を防止できる。 According to these configurations, since the power storage unit is provided, the power supply amount supplied from the sub power source can be zero during the second standby mode. In addition, for example, by charging the power storage unit at midnight, the electricity bill can be reduced. Furthermore, insufficient charging of the power storage unit can be prevented by performing periodic charging.
　上記の電子機器において、外部機器からの信号入力を検出する信号入力検出部をさらに備え、モード切替部は、電源状態検出部および信号入力検出部の検出結果に基づいて、第１の待機モードと第２の待機モードのモード切替を行うことを特徴とする。 The electronic device further includes a signal input detection unit that detects a signal input from an external device, and the mode switching unit is configured to detect the first standby mode based on detection results of the power state detection unit and the signal input detection unit. The second standby mode is switched.
　この構成によれば、例えば外部機器が電源ＯＮ状態であって、且つ外部機器から信号入力がある場合のみ、第２の待機モードから第１の待機モードに切り替えることができる。これにより、電源状態のみに応じてモード切替を行う構成と比較して、外部機器が電源ＯＮ状態であるが信号出力していない状態時の、不要なインターフェース部への電源供給がなくなるため、更なる省電力化を実現できる。 According to this configuration, for example, the second standby mode can be switched to the first standby mode only when the external device is in the power-on state and there is a signal input from the external device. This eliminates unnecessary power supply to the interface unit when the external device is in a power-on state but not outputting a signal, compared to a configuration in which mode switching is performed only according to the power state. It is possible to realize power saving.
　上記の電子機器において、インターフェース部は、信号を入力する入力機器および、信号を出力する出力機器を接続可能であり、電源状態検出部は、入力機器および出力機器の電源状態を検出することを特徴とする。 In the above electronic device, the interface unit can connect an input device that inputs a signal and an output device that outputs a signal, and the power supply state detection unit detects a power supply state of the input device and the output device. And
　この構成によれば、例えば入力機器および出力機器の両方が電源ＯＮ状態である場合のみ、第２の待機モードから第１の待機モードに切り替えることができる。これにより、入力機器の電源状態のみに応じてモード切替を行う構成と比較して、入力機器が電源ＯＮ状態であるが出力機器が電源ＯＦＦ状態である時の、不要なインターフェース部への電源供給がなくなるため、更なる省電力化を実現できる。 According to this configuration, it is possible to switch from the second standby mode to the first standby mode only when, for example, both the input device and the output device are in the power ON state. As a result, compared to a configuration in which mode switching is performed only according to the power state of the input device, power is supplied to an unnecessary interface unit when the input device is in a power-on state but the output device is in a power-off state. Therefore, further power saving can be realized.
　本発明のＡＶアンプは、上記の電子機器における各部を備え、外部機器は、映像信号および／または音声信号であるＡＶ信号を入力するソース機器であることを特徴とする。 The AV amplifier according to the present invention includes each unit in the electronic device, and the external device is a source device that inputs an AV signal that is a video signal and / or an audio signal.
　本発明のプログラムは、コンピューターに、上記の電子機器の電源制御方法における各ステップを実行させることを特徴とする。 The program of the present invention causes a computer to execute each step in the power control method for the electronic device.
　これらの構成によれば、起動時間が短く、且つ省電力化を実現可能なＡＶアンプ、または電子機器の電源制御方法を実現できる。 According to these configurations, it is possible to realize a power supply control method for an AV amplifier or an electronic device that has a short startup time and can realize power saving.
本発明の一実施形態に係るＡＶシステムのシステム構成図である。1 is a system configuration diagram of an AV system according to an embodiment of the present invention. 本発明のモード切替を示す説明図である。It is explanatory drawing which shows the mode switching of this invention. 第１実施形態に係るＡＶアンプの内部構成図である。1 is an internal configuration diagram of an AV amplifier according to a first embodiment. 第１実施形態に係るＡＶアンプの機能ブロック図である。2 is a functional block diagram of an AV amplifier according to the first embodiment. FIG. ＡＶアンプのモード切替処理を示すフローチャートである。It is a flowchart which shows the mode switching process of AV amplifier. 第２実施形態に係るＡＶアンプの内部構成図である。It is an internal block diagram of AV amplifier which concerns on 2nd Embodiment. 従来のモード切替を示す説明図である。It is explanatory drawing which shows the conventional mode switching.
［第１実施形態］
　以下、本発明の一実施形態に係る電子機器、ＡＶアンプ、電子機器の電源制御方法およびプログラムについて、添付図面を参照しながら詳細に説明する。本実施形態では、本発明の電子機器を、ＡＶ（Audio　Visual）アンプに適用した場合について説明する。 [First Embodiment]
Hereinafter, an electronic device, an AV amplifier, a power control method for an electronic device, and a program according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the present embodiment, a case where the electronic apparatus of the present invention is applied to an AV (Audio Visual) amplifier will be described.
　図１は、本実施形態に係るＡＶシステムＳＹのシステム構成図である。同図に示すように、ＡＶシステムＳＹは、ＤＶＤ（Digital　Versatile　Disk）プレーヤーおよびＢＤ（Blu-ray　Disc）プレーヤー等の複数のソース機器１０と、ＡＶセンター機能を持つＡＶアンプ２０と、ＡＶアンプ２０に接続された複数のスピーカー３０と、スピーカー内蔵型のＴＶ４０（Television）と、から成る。 FIG. 1 is a system configuration diagram of an AV system SY according to the present embodiment. As shown in the figure, the AV system SY includes a plurality of source devices 10 such as a DVD (Digital Versatile Disk) player and a BD (Blu-ray Disc) player, an AV amplifier 20 having an AV center function, and an AV amplifier 20. And a speaker built-in type TV 40 (Television).
　各ソース機器１０とＡＶアンプ２０および、ＡＶアンプ２０とＴＶ４０は、ＨＤＭＩ（High-Definition　Multimedia　Interface，登録商標）ケーブル５１，５２を介して接続されている。また、ＡＶアンプ２０と各スピーカー３０は、スピーカーケーブル５３を介して接続されている。なお、同図では、ＡＶアンプ２０に３台のソース機器１０が接続された例を示しているが、１台であっても良いし、４台以上であっても良い。 Each source device 10 and AV amplifier 20, and AV amplifier 20 and TV 40 are connected via HDMI (High-Definition Multimedia Interface, registered trademark) cables 51 and 52. The AV amplifier 20 and each speaker 30 are connected via a speaker cable 53. In the figure, an example in which three source devices 10 are connected to the AV amplifier 20 is shown, but there may be one or four or more.
　複数のスピーカー３０は、例えば５．１ｃｈサラウンドを構成する。つまり、同図では２台のスピーカー３０のみ図示しているが、それ以上の数であっても良い。これに対し、ＴＶ４０に組み込まれたＴＶスピーカー４２は、ステレオ対応であり、２台の内蔵スピーカーから成る。 The plurality of speakers 30 constitutes 5.1ch surround, for example. That is, in the figure, only two speakers 30 are shown, but the number may be larger. On the other hand, the TV speaker 42 incorporated in the TV 40 is stereo-compatible and includes two built-in speakers.
　ＡＶアンプ２０は、各ソース機器１０およびＴＶ４０（以下、これらを総称して「外部機器」と称する）と、信号の入出力を行うためのインターフェース回路２１を有している。インターフェース回路２１には、信号を受信するレシーバー、ソース機器１０の切替を行うセレクター、信号を送信するトランスミッター等が含まれる（いずれも図示省略）。また、ＡＶアンプ２０は、各種音声処理を行うための音声処理回路２２を有している。音声処理回路２２には、パワーアンプやプリアンプ（いずれも図示省略）等が含まれる。音声処理回路２２による処理後の音声信号は、スピーカー３０に出力される。 The AV amplifier 20 includes each source device 10 and a TV 40 (hereinafter collectively referred to as “external device”) and an interface circuit 21 for inputting and outputting signals. The interface circuit 21 includes a receiver that receives a signal, a selector that switches the source device 10, a transmitter that transmits a signal, and the like (all not shown). The AV amplifier 20 has an audio processing circuit 22 for performing various audio processes. The audio processing circuit 22 includes a power amplifier, a preamplifier (both not shown), and the like. The audio signal processed by the audio processing circuit 22 is output to the speaker 30.
　次に、図２を参照し、ＡＶアンプ２０のモード切替について説明する。ＡＶアンプ２０は、「通常動作モード」と、当該通常動作モードよりも消費電力が小さい「パススルー待機モード（第１の待機モード）」と、当該パススルー待機モードよりもさらに消費電力が小さい「通常待機モード（第２の待機モード）」と、の３つのモードを有している。「通常動作モード」時の消費電力に対し、「パススルー待機モード」時の消費電力は、１／４～３／４程度であり、「通常待機モード」時の消費電力は、１／１００ないし１／２００程度である。なお、「パススルー待機モード」と「通常待機モード」を、以下「待機モード」と総称する（点線の囲み枠参照）。 Next, the mode switching of the AV amplifier 20 will be described with reference to FIG. The AV amplifier 20 includes a “normal operation mode”, a “pass-through standby mode (first standby mode)” that consumes less power than the normal operation mode, and a “normal standby” that consumes less power than the pass-through standby mode. Mode (second standby mode) ". The power consumption in the “pass-through standby mode” is about 1/4 to 3/4 of the power consumption in the “normal operation mode”, and the power consumption in the “normal standby mode” is 1/100 to 1 / 200 or so. The “pass-through standby mode” and the “normal standby mode” are hereinafter collectively referred to as “standby mode” (see the dotted box).
　ここで、「通常動作モード」とは、ソース機器１０から入力された映像信号をＴＶ４０に出力すると共に、ソース機器１０から入力された音声信号をスピーカー３０に出力するモードであり、高品質な音声を楽しみたい場合に用いられる。また、「パススルー待機モード」とは、ソース機器１０から入力された映像信号および音声信号をＴＶ４０に出力するモードであり、気軽に音声を楽しみたい場合に用いられる。「パススルー待機モード」時には、音声処理回路２２を使用せず、ＴＶスピーカー４２から音声出力される。なお、当該「パススルー待機モード」時における、ソース機器１０のコンテンツをＴＶ４０にパススルーする機能を、以下「パススルー機能」と称する。一方、「通常待機モード」とは、リモコンからの起動命令等を受信可能なモードであり、映像信号および音声信号の入出力は行わない。 Here, the “normal operation mode” is a mode in which a video signal input from the source device 10 is output to the TV 40 and an audio signal input from the source device 10 is output to the speaker 30, and high-quality audio is output. Used when you want to enjoy. The “pass-through standby mode” is a mode in which the video signal and the audio signal input from the source device 10 are output to the TV 40, and is used when the user wants to easily enjoy audio. In the “pass-through standby mode”, audio is output from the TV speaker 42 without using the audio processing circuit 22. The function of passing through the content of the source device 10 to the TV 40 in the “pass-through standby mode” is hereinafter referred to as “pass-through function”. On the other hand, the “normal standby mode” is a mode in which an activation command or the like from a remote controller can be received, and video signals and audio signals are not input / output.
　同図に示すように、「通常動作モード」と「待機モード」は、PowerOnコマンドの受信またはPowerOffコマンドの受信によって切り替わる。また、待機モード時は、ソース機器１０の電源状態に応じて、「パススルー待機モード」と「通常待機モード」が切り替わる。例えば、「通常待機モード」時にソース機器１０が電源ＯＮ状態となった場合は、パススルー機能を用いる可能性があるため、「パススルー待機モード」に切り替える。逆に、「パススルー待機モード」時に、接続されている全てのソース機器１０が電源ＯＦＦ状態となった場合は、「通常待機モード」に切り替える。 As shown in the figure, the “normal operation mode” and “standby mode” are switched by receiving the PowerOn command or the PowerOff command. In the standby mode, the “pass-through standby mode” and the “normal standby mode” are switched according to the power state of the source device 10. For example, when the source device 10 is in a power-on state during the “normal standby mode”, the pass-through function may be used, so the mode is switched to the “pass-through standby mode”. On the other hand, when all the connected source devices 10 are turned off in the “pass-through standby mode”, the mode is switched to the “normal standby mode”.
　次に、図３を参照し、ＡＶアンプ２０の内部構成について説明する。ＡＶアンプ２０は、上記のインターフェース回路２１および音声処理回路２２以外に、メイン電源Ｐ１、サブ電源Ｐ２、第１開閉部２３、第２開閉部２４、ＯＲ回路２５、電圧検出回路２６、起動受信回路２７および制御回路２８を備えている。 Next, the internal configuration of the AV amplifier 20 will be described with reference to FIG. In addition to the interface circuit 21 and the audio processing circuit 22 described above, the AV amplifier 20 includes a main power supply P1, a sub power supply P2, a first opening / closing part 23, a second opening / closing part 24, an OR circuit 25, a voltage detection circuit 26, and a startup receiving circuit. 27 and a control circuit 28.
　メイン電源Ｐ１は、例えばＡＣ／ＤＣ電源であり、音声処理回路２２への電源供給を行う。また、サブ電源Ｐ２は、例えばＡＣ／ＤＣ電源またはスイッチング電源であり、インターフェース回路２１、起動受信回路２７および制御回路２８への電源供給を行う。当然のことながら、メイン電源Ｐ１は、サブ電源Ｐ２よりも、電力供給量が大きい。 The main power supply P1 is, for example, an AC / DC power supply, and supplies power to the sound processing circuit 22. The sub power supply P2 is, for example, an AC / DC power supply or a switching power supply, and supplies power to the interface circuit 21, the activation receiving circuit 27, and the control circuit 28. As a matter of course, the main power supply P1 has a larger amount of power supply than the sub power supply P2.
　第１開閉部２３は、メイン電源Ｐ１の一次側開閉部であり、ＡＣ電源からメイン電源Ｐ１への電源供給／非供給を切り替える。また、第２開閉部２４は、サブ電源Ｐ２の二次側開閉部であり、サブ電源Ｐ２からインターフェース回路２１への電源供給／非供給を切り替える。なお、第１開閉部２３および第２開閉部２４には、開閉を行う駆動部（図示省略）が組み込まれている。 The first opening / closing part 23 is a primary side opening / closing part of the main power supply P1, and switches power supply / non-supply from the AC power supply to the main power supply P1. The second opening / closing part 24 is a secondary side opening / closing part of the sub power source P <b> 2, and switches power supply / non-supply from the sub power source P <b> 2 to the interface circuit 21. The first opening / closing part 23 and the second opening / closing part 24 incorporate a driving part (not shown) for opening and closing.
　電圧検出回路２６は、接続されている各ソース機器１０の電圧値を検出する。また、複数台のソース機器１０が接続されている場合、ＯＲ回路２５との組み合わせにより、少なくとも１つのソース機器１０の電圧値が所定値以上となったか否かを検出する。具体的には、ソース機器１０から供給される「＋5V　Power」を用いて検出する。 The voltage detection circuit 26 detects the voltage value of each connected source device 10. When a plurality of source devices 10 are connected, it is detected whether or not the voltage value of at least one source device 10 is equal to or higher than a predetermined value by combination with the OR circuit 25. Specifically, detection is performed using “+5 V Power” supplied from the source device 10.
　起動受信回路２７は、リモコンや操作パネルの操作によるPowerOnコマンドまたはPowerOffコマンドを受信する。制御回路２８は、ＡＶアンプ２０を統括制御する。特に本実施形態では、電圧検出回路２６の検出結果をモニターし、「パススルー待機モード」と「通常待機モード」を切り替えたり、起動受信回路２７の受信状態をモニターし、「通常動作モード」と「待機モード」を切り替えたりなどのモード切替制御を行う。 The activation receiving circuit 27 receives a PowerOn command or a PowerOff command by operating the remote control or the operation panel. The control circuit 28 performs overall control of the AV amplifier 20. In particular, in the present embodiment, the detection result of the voltage detection circuit 26 is monitored, the “pass-through standby mode” and the “normal standby mode” are switched, the reception state of the start-up reception circuit 27 is monitored, and the “normal operation mode” and “ Mode switching control such as switching the “standby mode” is performed.
　次に、図４を参照し、ＡＶアンプ２０の機能構成について説明する。ＡＶアンプ２０は、主な機能構成として、電源部２１０、インターフェース部２２０、電源状態検出部２３０およびモード切替部２４０を備えている。なお、電源状態検出部２３０およびモード切替部２４０は、制御回路２８を主要部とする機能である。 Next, the functional configuration of the AV amplifier 20 will be described with reference to FIG. The AV amplifier 20 includes a power supply unit 210, an interface unit 220, a power supply state detection unit 230, and a mode switching unit 240 as main functional configurations. The power supply state detection unit 230 and the mode switching unit 240 are functions having the control circuit 28 as a main part.
　電源部２１０は、メイン電源Ｐ１およびサブ電源Ｐ２から成る。「通常動作モード」時は、メイン電源Ｐ１およびサブ電源Ｐ２から電源供給を行う。また、「パススルー待機モード」時および「通常待機モード」時は、メイン電源Ｐ１を休止状態とし、サブ電源Ｐ２からのみ電源供給を行う。 The power supply unit 210 includes a main power supply P1 and a sub power supply P2. In the “normal operation mode”, power is supplied from the main power supply P1 and the sub power supply P2. In the “pass-through standby mode” and the “normal standby mode”, the main power supply P1 is set in a sleep state, and power is supplied only from the sub power supply P2.
　インターフェース部２２０は、外部機器（ソース機器１０およびＴＶ４０）を接続するためのインターフェース回路２１を指す。電源状態検出部２３０は、電圧検出回路２６の検出結果に基づいて、ソース機器１０の電源状態を検出する。 The interface unit 220 refers to the interface circuit 21 for connecting external devices (the source device 10 and the TV 40). The power supply state detection unit 230 detects the power supply state of the source device 10 based on the detection result of the voltage detection circuit 26.
　モード切替部２４０は、電源状態検出部２３０の検出結果やPowerOnコマンドまたはPowerOffコマンドの受信に応じて、図２に示した３つのモードの切替を行う。例えば、「通常待機モード」中に、インターフェース部２２０に接続されているソース機器１０のうちいずれかが電源ＯＮ状態となったことを検出した場合、「パススルー待機モード」へのモード切替を行う。また、「パススルー待機モード」中に、接続されている全てのソース機器１０が電源ＯＦＦ状態となったことを検出した場合、「通常待機モード」へのモード切替を行う。 The mode switching unit 240 performs switching between the three modes shown in FIG. 2 in response to the detection result of the power state detection unit 230 and the reception of the PowerOn command or the PowerOff command. For example, when it is detected that one of the source devices 10 connected to the interface unit 220 is in a power ON state during the “normal standby mode”, the mode is switched to the “pass-through standby mode”. Further, when it is detected during the “pass-through standby mode” that all the connected source devices 10 are turned off, the mode is switched to the “normal standby mode”.
　ここで、図５のフローチャートを参照し、モード切替部２４０によるモード切替処理について、さらに詳細に説明する。前提として、ＡＶアンプ２０が「通常待機モード」であるものとする（Ｓ００）。制御回路２８は、「通常待機モード」時において、第１開閉部２３および第２開閉部２４を「開」とする。モード切替部２４０は、「通常待機モード」時にPowerOnコマンドを受信した場合（Ｓ０１：Ｙｅｓ）、「通常動作モード」へモード切替を行う（Ｓ０２）。このとき、制御回路２８は、第１開閉部２３および第２開閉部２４を「閉」とする。 Here, the mode switching process by the mode switching unit 240 will be described in more detail with reference to the flowchart of FIG. It is assumed that the AV amplifier 20 is in “normal standby mode” (S00). The control circuit 28 opens the first opening / closing part 23 and the second opening / closing part 24 in the “normal standby mode”. When the mode switching unit 240 receives the PowerOn command in the “normal standby mode” (S01: Yes), the mode switching unit 240 switches the mode to the “normal operation mode” (S02). At this time, the control circuit 28 sets the first opening / closing part 23 and the second opening / closing part 24 to “closed”.
　また、モード切替部２４０は、PowerOnコマンドを受信せず（Ｓ０１：Ｎｏ）、ソース機器１０の電源ＯＮを検出した場合（Ｓ０３：Ｙｅｓ）、「パススルー待機モード」へモード切替を行う（Ｓ０４）。このとき、制御回路２８は、第１開閉部２３を「開」とし、第２開閉部２４を「閉」とする。また、ソース機器１０の電源ＯＮを検出しなかった場合は（Ｓ０３：Ｎｏ）、Ｓ００に戻る。 Further, when the mode switching unit 240 does not receive the PowerOn command (S01: No) and detects that the source device 10 is powered on (S03: Yes), the mode switching unit 240 switches the mode to the “pass-through standby mode” (S04). At this time, the control circuit 28 sets the first opening / closing part 23 to “open” and the second opening / closing part 24 to “closed”. If the power ON of the source device 10 is not detected (S03: No), the process returns to S00.
　一方、モード切替部２４０は、「パススルー待機モード」時にPowerOnコマンドを受信すると（Ｓ０５：Ｙｅｓ）、「通常動作モード」へモード切替を行う（Ｓ０２）。また、PowerOnコマンドを受信せず（Ｓ０５：Ｎｏ）、接続されている全てのソース機器１０の電源ＯＦＦを検出した場合（Ｓ０６：Ｙｅｓ）、「通常待機モード」へモード切替を行う（Ｓ００）。また、接続されている全てのソース機器１０の電源ＯＦＦを検出しなかった場合は（Ｓ０６：Ｎｏ）、Ｓ０４に戻る。 On the other hand, when the mode switching unit 240 receives the PowerOn command in the “pass-through standby mode” (S05: Yes), the mode switching unit 240 switches the mode to the “normal operation mode” (S02). If the power-on command is not received (S05: No), and the power-off of all connected source devices 10 is detected (S06: Yes), the mode is switched to the “normal standby mode” (S00). Further, when the power supply OFF of all the connected source devices 10 is not detected (S06: No), the process returns to S04.
　以上説明したとおり、本発明の第１実施形態に係るＡＶアンプ２０は、「パススルー待機モード」と「通常待機モード」の２つの待機モードを有し、ソース機器１０が電源ＯＮ状態となったときだけ（インターフェース回路２１を動作させる必要があるときだけ）「パススルー待機モード」ドに切り替えることができるため、待機モードとして「パススルー待機モード」しか備えていない「従来例その２」の構成（図７（ｂ）参照）と比較して、待機電力を小さくできる。また、待機モードとして「通常待機モード」しか備えていない「従来例その１」の構成（図７（ａ）参照）と比較すると、「通常待機モード」から「通常動作モード」へ移行するための初期化処理が不要となるため、起動時間を短縮できる。つまり、「従来例その１」と「従来例その２」の、両方の利点を兼ね備えた電源制御を実現できる。 As described above, the AV amplifier 20 according to the first embodiment of the present invention has two standby modes of “pass-through standby mode” and “normal standby mode”, and when the source device 10 is turned on. Only (when the interface circuit 21 needs to be operated) can be switched to the “pass-through standby mode” mode, and therefore the configuration of “conventional example 2” having only the “pass-through standby mode” as the standby mode (FIG. 7). In comparison with (b), standby power can be reduced. Further, compared with the configuration of “conventional example 1” (see FIG. 7A), which has only “normal standby mode” as the standby mode, it is for shifting from “normal standby mode” to “normal operation mode”. Since no initialization process is required, the startup time can be shortened. That is, it is possible to realize power supply control having both advantages of “conventional example 1” and “conventional example 2”.
［第２実施形態］
　次に、図６を参照し、本発明の第２実施形態について説明する。本実施形態は、第１実施形態に対し、更なる省電力化を図ったものである。以下、第１実施形態と異なる点のみ説明する。なお、本実施形態において、第１実施形態と同様の構成部分については同様の符号を付し、詳細な説明を省略する。また、第１実施形態と同様の構成部分について適用される変形例は、本実施形態についても同様に適用される。 [Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIG. In the present embodiment, further power saving is achieved with respect to the first embodiment. Only differences from the first embodiment will be described below. In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. Moreover, the modification applied about the component similar to 1st Embodiment is applied similarly about this embodiment.
　図６は、第２実施形態に係るＡＶアンプ２０の内部構成図である。同図に示すように、本実施形態のＡＶアンプ２０は、第１実施形態（図３参照）に対し、蓄電部６１および充電制御部６２を追加し、第２開閉部２４をサブ電源Ｐ２の１次側に配置した点で異なる。 FIG. 6 is an internal configuration diagram of the AV amplifier 20 according to the second embodiment. As shown in the figure, the AV amplifier 20 of the present embodiment adds a power storage unit 61 and a charge control unit 62 to the first embodiment (see FIG. 3), and connects the second opening / closing unit 24 to the sub power source P2. It differs in that it is arranged on the primary side.
　蓄電部６１は、充電制御部６２を介してサブ電源Ｐ２から充電される。以下、具体的に説明する。制御回路２８は、蓄電部６１の状態（電圧値）をモニターし、例えば予め設定された充電要求閾値Ｖ１以下になった場合、第２開閉部２４を「閉」としてサブ電源Ｐ２を起動する。これにより、充電制御部６２にも電力が供給され、蓄電部６１への充電が開始される。また、制御回路２８は、蓄電部６１の電圧値が、例えば予め設定された充電完了閾値Ｖ２（但し、Ｖ１＜Ｖ２）以下になった場合、第２開閉部２４を「開」としてサブ電源Ｐ２からの電力供給を休止させ、さらに充電制御部６２を充電停止状態とする。 The power storage unit 61 is charged from the sub power source P <b> 2 via the charge control unit 62. This will be specifically described below. The control circuit 28 monitors the state (voltage value) of the power storage unit 61, and activates the sub power source P <b> 2 with the second opening / closing unit 24 being “closed” when, for example, the charge request threshold value V <b> 1 or less is set. As a result, power is also supplied to the charging control unit 62 and charging of the power storage unit 61 is started. Further, when the voltage value of the power storage unit 61 is, for example, equal to or lower than a preset charging completion threshold V2 (where V1 <V2), the control circuit 28 sets the second opening / closing unit 24 to “open” and the sub power source P2. Is stopped, and the charging control unit 62 is set in a charging stopped state.
　一方、制御回路２８は、接続されているソース機器１０が電源ＯＮ状態となったことを検出した場合、インターフェース回路２１への電源供給が必要となるため、第２開閉部２４を「閉」として、サブ電源Ｐ２から必要な電力を供給する。このように、蓄電部６１および充電制御部６２を備えたことで、待機モード中は、ＡＣ電源からＡＶアンプ２０の内部に供給される電力供給量をゼロとすることができるため、一日あたりの待機電力を削減できる。 On the other hand, when the control circuit 28 detects that the connected source device 10 is in the power ON state, the power supply to the interface circuit 21 is necessary, so the second opening / closing unit 24 is set to “closed”. The necessary power is supplied from the sub power source P2. As described above, since the power storage unit 61 and the charge control unit 62 are provided, the amount of power supplied from the AC power source to the inside of the AV amplifier 20 can be reduced to zero during the standby mode. Standby power can be reduced.
　なお、充電制御部６２により、定期的またはユーザー設定された時間帯に蓄電部６１への充電を行うようにしても良い。この場合、制御回路２８にクロック機能（計時部）を設けて、第２開閉部２４の開閉制御を行えば良い。これにより、電力消費量のピークとなる時間帯を避けて、例えば毎深夜または、ユーザー設定された時間帯に、自立的に充電を行うことができる。この構成によれば、節電に役立ち、且つ電気代を抑えることができる。さらに、定期充電を行うことで、蓄電部６１が待機動作に支障をきたすほどの充電不足に陥ることを防止できる。 Note that the charging control unit 62 may charge the power storage unit 61 regularly or during a user-set time zone. In this case, the control circuit 28 may be provided with a clock function (timer unit) to perform opening / closing control of the second opening / closing unit 24. Thus, it is possible to perform charging independently, for example, every midnight or at a user-set time zone, avoiding the time zone during which the power consumption is peaked. According to this structure, it is useful for power saving and can suppress an electricity bill. Furthermore, by performing regular charging, it is possible to prevent the power storage unit 61 from being insufficiently charged to hinder standby operation.
　さらに、長期間充電しなかった場合の蓄電部６１の充電不足に備えて、第２開閉部２４と並列に手動開閉部（図示省略）を備え、手動でサブ電源Ｐ２を起動できるようにしても良い。この構成によれば、より確実に蓄電部６１の充電不足を防止できる。 Furthermore, a manual opening / closing unit (not shown) is provided in parallel with the second opening / closing unit 24 so that the sub power source P2 can be manually activated in preparation for insufficient charging of the power storage unit 61 when it is not charged for a long time. good. According to this configuration, insufficient charging of power storage unit 61 can be prevented more reliably.
［変形例１］
　以上、２つの実施形態を示したが、以下の変形例を採用しても良い。例えば、ソース機器１０からの信号入力を検出する信号入力検出部（図示省略）をさらに備え、モード切替部２４０により、電源状態検出部２３０および信号入力検出部の検出結果に基づいて、「パススルー待機モード」と「通常待機モード」のモード切替を行っても良い。例えば、接続されているソース機器１０のうち少なくとも１つのソース機器１０が、電源ＯＮ状態で且つＡＶアンプ２０に信号入力を行っている場合のみ、「パススルー待機モード」とすることが考えられる。 [Modification 1]
As mentioned above, although two embodiment was shown, you may employ | adopt the following modifications. For example, a signal input detection unit (not shown) that detects a signal input from the source device 10 is further provided, and the mode switching unit 240 performs “pass-through standby” based on detection results of the power supply state detection unit 230 and the signal input detection unit. Mode switching between “mode” and “normal standby mode” may be performed. For example, it is conceivable that the “pass-through standby mode” is set only when at least one of the connected source devices 10 is in a power-on state and inputs a signal to the AV amplifier 20.
　この構成によれば、ソース機器１０の電源状態のみに応じてモード切替を行う第１実施形態と比較して、更なる省電力化を実現できる。つまり、第１実施形態では、ソース機器１０が電源ＯＮ状態であるが信号出力していない状態の場合、「パススルー待機モード」となるが、本変形例では「通常待機モード」となるため、不要なインターフェース部２２０への電源供給をなくすことができる。 According to this configuration, further power saving can be realized as compared with the first embodiment in which mode switching is performed only in accordance with the power state of the source device 10. In other words, in the first embodiment, when the source device 10 is in the power-on state but is not outputting a signal, the “pass-through standby mode” is set, but in this modified example, the “normal standby mode” is set, which is unnecessary. The power supply to the interface unit 220 can be eliminated.
［変形例２］
　また、電源状態検出部２３０により、ソース機器１０（入力機器）だけでなく、ＴＶ４０（出力機器）の電源状態を検出しても良い。この場合、モード切替部２４０は、ソース機器１０とＴＶ４０の両方の電源状態に応じてモード切替を行う。例えば、接続されているソース機器１０のうち少なくとも１つのソース機器１０が電源ＯＮ状態で、且つＴＶ４０が電源ＯＮ状態である場合のみ、「パススルー待機モード」とすることが考えられる。 [Modification 2]
Further, the power supply state detection unit 230 may detect the power supply state of the TV 40 (output device) as well as the source device 10 (input device). In this case, the mode switching unit 240 performs mode switching according to the power state of both the source device 10 and the TV 40. For example, the “pass-through standby mode” can be considered only when at least one of the connected source devices 10 is in a power-on state and the TV 40 is in a power-on state.
　この構成によれば、ソース機器１０の電源状態のみに応じてモード切替を行う第１実施形態と比較して、更なる省電力化を実現できる。つまり、第１実施形態では、ソース機器１０が電源ＯＮ状態でＴＶ４０が電源ＯＦＦ状態の場合、「パススルー待機モード」となるが、本変形例では「通常待機モード」となるため、不要なインターフェース部２２０への電源供給をなくすことができる。 According to this configuration, further power saving can be realized as compared with the first embodiment in which mode switching is performed only in accordance with the power state of the source device 10. That is, in the first embodiment, when the source device 10 is in the power-on state and the TV 40 is in the power-off state, the “pass-through standby mode” is set. The power supply to 220 can be eliminated.
　以上、２つの実施形態および２つの変形例を示したが、これらを適宜組み合わせても良い。例えば、変形例１と変形例２を組み合わせても良い。つまり、ＡＶアンプ２０に接続されているソース機器１０のうち少なくとも１つのソース機器１０が、電源ＯＮ状態且つ信号入力を行っており、さらにＴＶ４０が電源ＯＮ状態である場合のみ、「パススルー待機モード」としても良い。この構成によれば、変形例１および変形例２と比較し、更なる省電力化を実現できる。 As mentioned above, although two embodiment and two modifications were shown, these may be combined suitably. For example, Modification 1 and Modification 2 may be combined. That is, only when at least one source device 10 among the source devices 10 connected to the AV amplifier 20 is in a power-on state and a signal is input and the TV 40 is in a power-on state, the “pass-through standby mode”. It is also good. According to this configuration, further power saving can be realized as compared with the first and second modifications.
　また、上記の実施形態では、本発明の「電子機器」をＡＶアンプ２０に適用した場合を例示したが、その他、ＡＶレシーバー、ＡＶセレクター、ホームシアター等に適用しても良い。また、映像信号および音声信号を扱う機器だけでなく、映像信号のみまたは、音声信号のみを扱う機器に適用しても良い。さらに、映像信号および／または音声信号であるＡＶ信号を扱う機器ではなく、外部機器と信号（制御信号など）の入出力を行う他の電子機器に、本発明を適用しても良い。この場合、本発明の「外部機器」は、「電子機器」に対して信号を入力する入力機器であっても良いし、「電子機器」から信号が出力をされる出力機器であっても良い。 In the above embodiment, the case where the “electronic device” of the present invention is applied to the AV amplifier 20 is exemplified, but the present invention may be applied to an AV receiver, an AV selector, a home theater, and the like. Further, the present invention may be applied not only to devices that handle video signals and audio signals, but also to devices that handle only video signals or only audio signals. Furthermore, the present invention may be applied to other electronic devices that input / output signals (such as control signals) to / from external devices, not devices that handle AV signals that are video signals and / or audio signals. In this case, the “external device” of the present invention may be an input device that inputs a signal to the “electronic device”, or may be an output device that outputs a signal from the “electronic device”. .
　また、上記に示したＡＶアンプ２０の各構成要素をプログラムとして提供することが可能である。また、そのプログラムを各種記録媒体（ＣＤ－ＲＯＭ、フラッシュメモリ等）に格納して提供することも可能である。すなわち、コンピューターをＡＶアンプ２０の各構成要素として機能させるためのプログラム、およびそれを記録した記録媒体も、本発明の権利範囲に含まれるものである。その他、本発明の要旨を逸脱しない範囲で、適宜変更が可能である。 Further, each component of the AV amplifier 20 shown above can be provided as a program. Further, the program can be provided by being stored in various recording media (CD-ROM, flash memory, etc.). That is, a program for causing a computer to function as each component of the AV amplifier 20 and a recording medium on which the program is recorded are also included in the scope of the right of the present invention. Other modifications can be made as appropriate without departing from the scope of the present invention.
　１０…ソース機器　２０…ＡＶアンプ　２１…インターフェース回路　２２…音声処理回路　２３…第１開閉部　２４…第２開閉部　２５…ＯＲ回路　２６…電圧検出回路　２７……起動受信回路　２８…制御回路　３０…スピーカー　４２…ＴＶスピーカー　５３…スピーカーケーブル　６１…蓄電部　６２…充電制御部　Ｐ１…メイン電源　Ｐ２…サブ電源　ＳＹ…ＡＶシステム DESCRIPTION OF SYMBOLS 10 ... Source device 20 ... AV amplifier 21 ... Interface circuit 22 ... Audio processing circuit 23 ... 1st opening / closing part 24 ... 2nd opening / closing part 25 ... OR circuit 26 ... Voltage detection circuit 27 ... Start-up receiving circuit 28 ... Control circuit 30 ... Speaker 42 ... TV speaker 53 ... Speaker cable 61 ... Power storage unit 62 ... Charge control unit P1 ... Main power supply P2 ... Sub power supply SY ... AV system

Claims (10)

  1. 　外部機器を接続するためのインターフェース部と、
    　前記外部機器の電源状態を検出する電源状態検出部と、
    　メイン電源およびサブ電源を含む電源部と、
    　前記メイン電源および前記サブ電源からの電源供給を行う通常動作モード、前記メイン電源を休止状態とし、前記サブ電源から前記インターフェース部への電源供給を行う第１の待機モード、前記メイン電源を休止状態とし、前記インターフェース部への電源供給を行わない第２の待機モード、の中でモード切替を行うモード切替部と、を備え、
    　前記モード切替部は、前記電源状態検出部の検出結果に基づいて、前記第１の待機モードと前記第２の待機モードのモード切替を行うことを特徴とする電子機器。     An interface for connecting external devices;
    A power supply state detection unit for detecting a power supply state of the external device;
    A power supply unit including a main power supply and a sub power supply;
    A normal operation mode in which power is supplied from the main power source and the sub power source, a first standby mode in which the main power source is in a sleep state and power is supplied from the sub power source to the interface unit, and the main power source is in a sleep state And a mode switching unit that performs mode switching in the second standby mode in which power supply to the interface unit is not performed,
    The electronic device according to claim 1, wherein the mode switching unit performs mode switching between the first standby mode and the second standby mode based on a detection result of the power supply state detection unit.
  2. 　前記モード切替部は、前記第２の待機モード中に、前記外部機器が電源ＯＮ状態となったことを検出した場合、前記第１の待機モードへのモード切替を行うことを特徴とする請求項１に記載の電子機器。 The mode switching unit performs mode switching to the first standby mode when detecting that the external device is in a power-on state during the second standby mode. 1. The electronic device according to 1.
  3. 　前記インターフェース部は、複数の前記外部機器を接続可能であり、
    　前記モード切替部は、前記第１の待機モード中に、前記インターフェース部に接続されている全ての外部機器が電源ＯＦＦ状態となったことを検出した場合、前記第２の待機モードへのモード切替を行うことを特徴とする請求項１または２に記載の電子機器。     The interface unit can connect a plurality of the external devices,
    When the mode switching unit detects that all external devices connected to the interface unit are in a power OFF state during the first standby mode, the mode switching unit switches to the second standby mode. The electronic device according to claim 1, wherein:
  4. 　前記サブ電源から充電可能な蓄電部をさらに備え、
    　前記第２の待機モード中は、前記蓄電部からの電源供給によって待機動作することを特徴とする請求項１ないし３のいずれか１項に記載の電子機器。     It further comprises a power storage unit that can be charged from the sub power source,
    4. The electronic device according to claim 1, wherein during the second standby mode, a standby operation is performed by power supply from the power storage unit. 5.
  5. 　定期的またはユーザー設定された時間帯に、前記サブ電源から前記蓄電部に充電を行う充電制御部をさらに備えたことを特徴とする請求項４に記載の電子機器。 The electronic device according to claim 4, further comprising a charge control unit that charges the power storage unit from the sub power supply at regular or user-set time zones.
  6. 　前記外部機器からの信号入力を検出する信号入力検出部をさらに備え、
    　前記モード切替部は、前記電源状態検出部および前記信号入力検出部の検出結果に基づいて、前記第１の待機モードと前記第２の待機モードのモード切替を行うことを特徴とする請求項１ないし５のいずれか１項に記載の電子機器。     A signal input detection unit for detecting a signal input from the external device;
    2. The mode switching unit performs mode switching between the first standby mode and the second standby mode based on detection results of the power state detection unit and the signal input detection unit. The electronic device of any one of thru | or 5.
  7. 　前記インターフェース部は、信号を入力する入力機器および、信号を出力する出力機器を接続可能であり、
    　前記電源状態検出部は、前記入力機器および前記出力機器の電源状態を検出することを特徴とする請求項１ないし６のいずれか１項に記載の電子機器。     The interface unit can connect an input device that inputs a signal and an output device that outputs a signal,
    The electronic device according to claim 1, wherein the power state detection unit detects a power state of the input device and the output device.
  8. 　請求項１ないし７のいずれか１項に記載の電子機器における各部を備え、
    　前記外部機器は、映像信号および／または音声信号であるＡＶ信号を入力するソース機器であることを特徴とするＡＶアンプ。     Each part in the electronic device according to any one of claims 1 to 7,
    The AV amplifier, wherein the external device is a source device that inputs an AV signal that is a video signal and / or an audio signal.
  9. 　外部機器を接続するためのインターフェース部と、
    　メイン電源およびサブ電源を含む電源部と、を備えた電子機器の電源制御方法であって、
    　前記外部機器の電源状態を検出する電源状態検出ステップと、
    　前記メイン電源および前記サブ電源からの電源供給を行う通常動作モード、前記メイン電源を休止状態とし、前記サブ電源から前記インターフェース部への電源供給を行う第１の待機モード、前記メイン電源を休止状態とし、前記インターフェース部への電源供給を行わない第２の待機モード、の中でモード切替を行うモード切替ステップと、を実行し、
    　前記モード切替ステップは、前記電源状態検出ステップの検出結果に基づいて、前記第１の待機モードと前記第２の待機モードのモード切替を行うことを特徴とする電子機器の電源制御方法。     An interface for connecting external devices;
    A power supply control method for an electronic device comprising a power supply unit including a main power supply and a sub power supply,
    A power supply state detecting step for detecting a power supply state of the external device;
    A normal operation mode in which power is supplied from the main power source and the sub power source, a first standby mode in which the main power source is in a sleep state and power is supplied from the sub power source to the interface unit, and the main power source is in a sleep state And a mode switching step of performing mode switching in the second standby mode in which power supply to the interface unit is not performed,
    The mode switching step performs mode switching between the first standby mode and the second standby mode based on the detection result of the power state detection step.
  10. 　コンピューターに、請求項９に記載の電子機器の電源制御方法における各ステップを実行させるためのプログラム。 A program for causing a computer to execute each step in the power control method for an electronic device according to claim 9.
PCT/JP2011/007300 2011-12-27 2011-12-27 Electronic device, av amp, power supply control method and program for electronic device WO2013098881A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113311350A (en) * 2021-07-28 2021-08-27 苏州浪潮智能科技有限公司 BBU power supply online test device, method and server

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05189100A (en) * 1992-01-08 1993-07-30 Nec Corp Information processor
JPH09191569A (en) * 1995-11-01 1997-07-22 Sony Corp Low power consumption electric device
JP2006311288A (en) * 2005-04-28 2006-11-09 Sony Corp Audio relaying apparatus and audio relaying method
JP2011028528A (en) * 2009-07-27 2011-02-10 Hitachi Consumer Electronics Co Ltd Communication terminal equipment and conduction control method
JP2011139141A (en) * 2009-12-25 2011-07-14 Sharp Corp Content reproducing device, power supply control method thereof, program for the content reproducing device, and computer readable recording medium

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05189100A (en) * 1992-01-08 1993-07-30 Nec Corp Information processor
JPH09191569A (en) * 1995-11-01 1997-07-22 Sony Corp Low power consumption electric device
JP2006311288A (en) * 2005-04-28 2006-11-09 Sony Corp Audio relaying apparatus and audio relaying method
JP2011028528A (en) * 2009-07-27 2011-02-10 Hitachi Consumer Electronics Co Ltd Communication terminal equipment and conduction control method
JP2011139141A (en) * 2009-12-25 2011-07-14 Sharp Corp Content reproducing device, power supply control method thereof, program for the content reproducing device, and computer readable recording medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113311350A (en) * 2021-07-28 2021-08-27 苏州浪潮智能科技有限公司 BBU power supply online test device, method and server

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