Audio-visual (AV) apparatus and its control method
AssigneeKabushiki Kaisha Toshiba
InventorShojiro Sato
Life of this patent
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Abstract
According to one embodiment, an audio-visual apparatus that has received operation information transmitted using infrared receives a response signal via a radio frequency from a remote controller set to a combination mode transmitting operation information using both infrared and a radio frequency. The remote controller that has received the response signal transmitted from the AV apparatus within a predetermined time is automatically set to a temporary infrared only mode transmitting operation information using infrared only in place of the combination mode.
Claims8
An audio-visual apparatus comprising:
- a controlled apparatus;
- and
- a remote controller,
- the controlled apparatus comprising:
- an infrared ray receiver configured to receive a command using infrared rays;
- a radio wave receiver configured to receive a command using radio waves;
- a controller configured to accept the command received by at least one of the infrared receiver and the radio wave receiver, and to control a plurality of modules to a state corresponding to the command;
- and
- a radio wave transmitter configured to transmit a response signal via radio waves, the response signal being indicative that the infrared receiver has received the command,
- the remote controller comprising:
- an infrared transmitter configured to transmit a command using infrared rays;
- a radio wave transmitter configured to transmit a command using radio waves;
- a radio wave receiver configured to receive a response signal transmitted from the controlled apparatus;
- and
- a setting controller configured to automatically switch the remote controller to a temporary infrared only mode transmitting a command by the infrared transmitter from a combination mode when the radio wave receiver receives the response signal within a predetermined time after the command is transmitted while the remote controller is in the combination mode transmitting the command from both the infrared transmitter and the radio wave transmitter.
A method of controlling an audio-visual (AV) apparatus, comprising:
- transmitting a command from a remote controller in a combination mode which is transmitting the command using both infrared rays and radio waves;
- receiving the command via the infrared rays from the remote controller;
- transmitting a response signal to the received command via radio waves;
- receiving the response signal via radio waves from the AV apparatus at the remote controller;
- and
- automatically switching the remote controller to a temporary infrared only mode of transmitting via the infrared rays only from the combination mode when the remote controller receives a signal via the radio waves, in response to the command via the infrared rays, from the AV apparatus within a predetermined time after the remote controller transmits the command via the infrared rays.
Dependencies are inferred from the claim text.