VIDEO/AUDIO OUTPUT DEVICE AND EXTERNAL SPEAKER CONTROL APPARATUS
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Accused Products
Abstract
The invention provides an external speaker control apparatus for causing only one of an internal speaker and an external speaker to output audio when a power supply of the external speaker control apparatus which controls the external speaker changes from an off state to an on state, the external speaker being a speaker outside a video and audio output apparatus. The external speaker control apparatus includes a microcomputer for detecting the change of the power supply of an amplifier from an off state to an on state and a HDMI/CEC communication unit for outputting an instruction requesting output of information which indicates the audio output mode to the video and audio output apparatus while at the same time receiving the information indicating the audio output mode from the video and audio output apparatus in the case where the microcomputer detects the change of the power supply from an off state to an on state, wherein the microcomputer controls the output of the audio from the external speaker based on the information indicating the audio output mode.
20 Citations
30 Claims
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1-15. -15. (canceled)
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16. A video and audio output apparatus which outputs video and audio, comprising:
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an internal speaker operable to output the audio; a holding unit operable to hold information which indicates one of a plurality of audio output modes; an accepting unit operable to accept an instruction from outside the video and audio output apparatus; a management unit operable to cause said holding unit to hold the information based on a mode-specifying instruction for specifying an output mode of the audio accepted by said accepting unit; a receiving unit operable to receive an instruction from an external speaker control apparatus which controls an external speaker outside of said video and audio output apparatus; and an output unit operable to output the information indicating the audio output mode held in said holding unit to the external speaker control apparatus when said receiving unit receives, from said external speaker control apparatus, an instruction to request output of the information indicating the audio output mode. - View Dependent Claims (17, 18, 19)
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20. An external speaker control apparatus which controls an external speaker which is a speaker outside a video and audio output apparatus, said external speaker control apparatus comprising:
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a detection unit operable to detect a change of the power supply of the external speaker control apparatus from an off state to an on state; an output unit operable to output, to the video and audio output apparatus, an instruction to request the output of the information indicating an audio output mode when said detection unit detects the change of said power supply from an off state to an on state; a receiving unit operable to receive the information from said video and audio output apparatus; and a control unit operable to control the audio outputted from the external speaker based on the information indicating the audio output mode received by said receiving unit. - View Dependent Claims (21)
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22. An audio output mode notification method comprising:
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holding the information which indicates one of a plurality of audio output modes in a holding unit based on an instruction specifying the audio output mode; receiving an instruction from an external speaker control apparatus which controls a speaker outside a video and audio output apparatus; and outputting the information indicating the audio output mode held in the holding unit to the external speaker control apparatus when an instruction requesting the output of the information indicating the audio output mode is received from the external speaker control apparatus. - View Dependent Claims (23)
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24. An external speaker control method comprising:
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detecting a change of the power supply of an external speaker control apparatus which controls a speaker outside a video and audio output apparatus from an off state to an on state; outputting an instruction requesting the output of information which indicates the audio output mode to a video and audio output apparatus when the change of the power supply from an off state to an on state is detected; receiving information from the video and audio output apparatus; and controlling the output of the audio from an external speaker based on the information indicating the audio output mode received.
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25. An integrated circuit comprising:
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a management unit operable to cause a holding unit to hold information which indicates one of a plurality of audio output modes, based on an instruction specifying the output mode of the audio; a receiving unit operable to receive an instruction from an external speaker control apparatus which controls a speaker outside a video and audio output apparatus; and an output unit operable to output the information indicating the audio output mode held in the holding unit to the external speaker control apparatus when said receiving unit receives, from the external speaker control apparatus, an instruction requesting output of the information indicating the audio output mode. - View Dependent Claims (26)
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27. An integrated circuit comprising:
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a detection unit operable to detect a change of the power supply of an external speaker control apparatus which controls the speaker outside a video and audio output apparatus from an off state to an on state; an output unit operable to output, to the video and audio output apparatus, an instruction requesting the output of information which indicates the audio output mode in the case where said detection unit detects the change of said power supply from an off state to an on state; a receiving unit operable to receive the information from the video and audio output apparatus; and a control unit operable to control the output of the audio from an external speaker based on the information indicating the audio output mode received by said receiving unit.
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28. A program causing a computer to execute:
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causing a holding unit to hold information which indicates one of a plurality of audio output modes, based on an instruction specifying the audio output mode; receiving an instruction from an external speaker control apparatus which controls a speaker outside a video and audio output apparatus; and outputting the information indicating the audio output mode held in the holding unit to an external speaker control apparatus in the case where an instruction requesting the output of the information indicating the audio output mode is received from the external speaker control apparatus. - View Dependent Claims (29)
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30. A program causing a computer to execute:
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detecting a change of the power supply of an external speaker control apparatus which controls a speaker outside a video and audio output apparatus from an off state to an on state; outputting, to the video and audio output apparatus, an instruction requesting output of information which indicates the audio output mode in the case where the change of the power supply from an off state to an on state is detected; receiving the information from the video and audio output apparatus; and controlling output of the audio from the external speaker based on the information indicating the audio output mode received.
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Specification