Communication control device and communication control method in audio visual device system, and television receiver
AssigneeCanon Kabushiki Kaisha
InventorKazumi Suga
Life of this patent
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Abstract
When disconnection of an audio visual device from an audio visual device system is detected, a control unit in a communication control device performs control for causing an audio visual device that has not acquired a logical address corresponding to a device type thereof among a plurality of audio visual devices connected to a repeater device to acquire a logical address corresponding to the device type.
Claims11
A communication control device in an audio visual device system, the audio visual device system being arranged such that a repeater device is connected to an input terminal of the communication control device and a plurality of audio visual devices are connected to a plurality of input terminals of the repeater device, each of the connected audio visual devices being allocated a logical address corresponding to a device type thereof, an upper limit being set on the number of allocatable logical addresses for each device type so that when a number of audio visual devices that exceed the upper limit are connected, an excessive audio visual device is not allocated a logical address corresponding to a device type thereof, the communication control device comprising:
- a device detection unit configured to detect an audio visual device which has not acquired a logical address corresponding to a device type of the audio visual device among the plurality of audio visual devices connected to the repeater device;
- a disconnection detection unit configured to detect disconnection of an audio visual device from the audio visual device system;
- and
- a control unit configured to perform control for causing the audio visual device detected by the device detection unit to acquire a logical address corresponding to the device type when the disconnection detection unit detects disconnection of an audio visual device.
A communication control method in an audio visual device system, the audio visual device system being arranged such that a repeater device is connected to an input terminal of the communication control device and a plurality of audio visual devices are connected to a plurality of input terminals of the repeater device, each of the connected audio visual devices being allocated a logical address corresponding to a device type thereof, an upper limit being set on the number of allocatable logical addresses for each device type so that when a number of audio visual devices that exceed the upper limit are connected, an excessive audio visual device is not allocated a logical address corresponding to a device type thereof, the communication control method comprising:
- a device detection step of detecting an audio visual device which has not acquired a logical address corresponding to a device type of the audio visual device among the plurality of audio visual devices connected to the repeater device;
- a disconnection detection step of detecting disconnection of an audio visual device from the audio visual device system;
- and
- a control step of performing control for causing the audio visual device detected in the device detection step to acquire a logical address corresponding to the device type when disconnection of an audio visual device is detected in the disconnection detection step.
Dependencies are inferred from the claim text.