Multi-channel audio system
First Claim
1. A multi-channel audio system comprising:
- a master which decodes an input multi-channel audio stream, outputs the decoded multi-channel audio stream, extracts a predetermined audio stream from the output multi-channel audio stream based upon received compatibility information, and wirelessly transmits the extracted audio stream; and
a slave which transmits to the master the compatibility information indicating a type of audio stream supported by the slave among the multi-channel audio stream decoded by the master, wirelessly receives the extracted audio stream from the master based upon the transmitted compatibility information, decodes the received audio stream, and outputs the decoded audio stream.
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Accused Products
Abstract
A multi-channel audio system using a wireless transmission network used in a home theater includes: a master decoding an input multi-channel audio stream, outputting the decoded multi-channel audio stream, extracting a predetermined audio stream supported by a slave from the input multi-channel audio stream, and transmitting the extracted audio stream by wireless; and the slave transmitting information on an audio stream supported by the slave among a multi-channel audio stream to the master, receiving the extracted audio stream by wireless, decoding the received audio stream, and outputting the decoded audio stream. Accordingly, by extracting only data necessary to a slave and transmitting the data, a multi-channel audio system using a wireless network in which data is transmitted by saving a data bandwidth in a wireless communication environment in which a bandwidth of transmitted/received data is limited.
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Citations
32 Claims
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1. A multi-channel audio system comprising:
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a master which decodes an input multi-channel audio stream, outputs the decoded multi-channel audio stream, extracts a predetermined audio stream from the output multi-channel audio stream based upon received compatibility information, and wirelessly transmits the extracted audio stream; and
a slave which transmits to the master the compatibility information indicating a type of audio stream supported by the slave among the multi-channel audio stream decoded by the master, wirelessly receives the extracted audio stream from the master based upon the transmitted compatibility information, decodes the received audio stream, and outputs the decoded audio stream. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A multi-channel audio system comprising:
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a transmitter which selectively parses an input multi-channel audio stream to extract an audio stream based upon input compatibility information, and wirelessly transmits the extracted audio stream; and
a receiver which is compatible with the extracted audio stream as indicated in the compatibility information, wirelessly receives the extracted audio stream from the transmitter based upon the input compatibility information, and outputs the received audio stream. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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27. A transmitter device for use with a multi-channel audio system having a wireless receiving device, the transmitter device comprising:
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a parsing unit which selectively parses an input multi-channel audio stream to extract an audio stream based upon input compatibility information; and
a transmitter which wirelessly transmits the extracted audio stream to the wireless receiving device, the wireless receiving device being compatible with the extracted audio stream as indicated in the compatibility information. - View Dependent Claims (28, 29)
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30. A receiver device for use with a multi-channel audio system having a wireless transmitter device, the receiver device comprising:
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a transmitter which wirelessly transmits to the wireless transmitter device compatibility information indicating a type of audio stream to be transmitted, and wirelessly receives an extracted audio stream from the transmitter device which was extracted based upon the transmitted compatibility information; and
a decoder which decodes the received audio stream for use with a device connected to the transmitter. - View Dependent Claims (31)
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32. A memory encoded with data used by a transmitting device of a wireless multi-channel audio system to determine an audio capability of a wireless receiving device, the memory comprising:
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a type code individually indicating and distinguishing between types of data, the type code being used by the transmitting device to identify a type of data that is compatible with the wireless receiving device;
decoding capability information individually indicating and distinguishing between types of decoding techniques, the decoding capability information being used by the transmitting device to determine a type of decoding that is compatible with the wireless receiving device;
number of devices information individually indicating and distinguishing between to the transmitting device a number of channels, the number of devices information being used by the transmitting device to determine a number of channels used by the wireless receiving device and which are to be parsed from an input multi-channel signal; and
transfer channel information individually indicating and distinguishing between which of the channels are used by devices connected to the wireless receiving device, the transfer channel information being used by the transmitting device to determine which of the channels are to be parsed and transmitted to the wireless receiving device.
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Specification