Method and apparatus for transmitting audio data
AssigneeCore Logic, Inc.
InventorDonghwan Lee
Life of this patent
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Abstract
A method and apparatus for transmitting audio data is disclosed. In the method of sending audio data, audio data to be sent are divided into basic channel audio data and supplementary audio data for services of a high channel. When a left channel or a right channel is selected in response to a word selection signal in accordance with the standards of a serial bus, the basic channel audio data corresponding to a selected channel are sent, and at least one of the supplementary audio data is sent during the remaining time until another channel is selected in response to the word selection signal. Accordingly, audio data of a high channel, such as a 5.1 channel, can be sent without a design change using a serial bus for supporting a 2 channel, such as an I2S bus.
Claims17
A method of sending data using a serial bus, the method comprising:
- dividing audio data to be sent into basic channel audio data and supplementary audio data for services of a high channel;
- generating a word selection signal according to standards of the serial bus;
- when a left channel or a right channel is selected in response to the word selection signal, sending the basic channel audio data corresponding to the selected channel;
- and
- after sending the basic channel audio data, sending at least one of the supplementary audio data during a remaining time until another channel is selected in response to the word selection signal.
A method of sending data using a serial bus, the method comprising:
- dividing audio data to be sent into basic channel audio data and supplementary audio data for services of a high channel;
- configuring an audio data packet, including the basic channel audio data, in accordance with standards of the serial bus;
- inserting the supplementary audio data into an empty region of the audio data packet which is left after inserting the basic channel audio data;
- and
- sending an audio data packet, including the basic channel audio data and the supplementary audio data.
An audio data transmission apparatus for sending audio data through a serial bus, the audio data transmission apparatus comprising:
- an audio data processor for dividing audio data to be sent into basic channel audio data and supplementary audio data of services of a high channel;
- and
- a serial bus transmission controller for generating a word selection signal in accordance with standards of the serial bus, sending the basic channel audio data corresponding to a selected channel when a left channel or a right channel is selected in response to the word selection signal, and then sending at least one of the supplementary audio data during a remaining time until another channel is selected in response to the word selection signal.
Dependencies are inferred from the claim text.