Audio data receiving apparatus, audio data receiving method, and audio data transmission and receiving system
First Claim
1. An audio data receiving apparatus comprising:
- a receiving unit configured to receive audio data sampled in accordance with a first clock signal;
a synchronization unit configured to generate a second clock signal that is synchronized with the first clock signal by extracting clock components contained in the audio data;
a demodulator configured to demodulate the audio data in accordance with the second clock signal;
an oversampling unit configured to oversample the audio data demodulated by the demodulator by using a frequency higher than a frequency of the second clock signal;
a clock generator configured to generate a third clock signal having a frequency nearly equal to a frequency of the first clock signal; and
a data output unit configured to output the audio data oversampled by the oversampling unit in accordance with the third clock signal generated by the clock generator.
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Accused Products
Abstract
An audio data receiving apparatus includes a receiving unit configured to receive audio data sampled in accordance with a first clock signal; a synchronization unit configured to generate a second clock signal that is synchronized with the first clock signal by extracting clock components contained in the audio data; a demodulator configured to demodulate the audio data in accordance with the second clock signal; an oversampling unit configured to oversample the audio data demodulated by the demodulator by using a frequency higher than a frequency of the second clock signal; a clock generator configured to generate a third clock signal having a frequency nearly equal to the first clock signal; and a data output unit configured to output the audio data oversampled by the oversampling unit in accordance with the third clock signal generated by the clock generator.
9 Citations
5 Claims
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1. An audio data receiving apparatus comprising:
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a receiving unit configured to receive audio data sampled in accordance with a first clock signal; a synchronization unit configured to generate a second clock signal that is synchronized with the first clock signal by extracting clock components contained in the audio data; a demodulator configured to demodulate the audio data in accordance with the second clock signal; an oversampling unit configured to oversample the audio data demodulated by the demodulator by using a frequency higher than a frequency of the second clock signal; a clock generator configured to generate a third clock signal having a frequency nearly equal to a frequency of the first clock signal; and a data output unit configured to output the audio data oversampled by the oversampling unit in accordance with the third clock signal generated by the clock generator. - View Dependent Claims (2, 3)
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4. An audio data receiving method comprising the steps of:
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receiving audio data sampled in accordance with a first clock signal; generating a second clock signal that is synchronized with the first clock signal by extracting clock components contained in the audio data; demodulating the audio data in accordance with the second clock signal; oversampling the demodulated audio data by using a frequency higher than a frequency of the second clock signal; generating a third clock signal having a frequency nearly equal to a frequency of the first clock signal; and outputting the oversampled audio data in accordance with the third clock signal.
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5. An audio data transmission and receiving system comprising:
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an audio data transmission apparatus including a transmission unit configured to transmit audio data sampled in accordance with a first clock signal; and an audio data receiving apparatus including a receiving unit configured to receive the audio data transmitted from the audio data transmission apparatus, a synchronization unit configured to generate a second clock signal synchronized with the first clock signal by extracting clock components contained in the audio data, a demodulator configured to demodulate the audio data in accordance with the second clock signal, an oversampling unit configured to oversample the audio data demodulated by the demodulator by using a frequency higher than a frequency of the second clock signal, a clock generator configured to generate a third clock signal having a frequency nearly equal to a frequency of the first clock signal, and a data output unit configured to output the audio data oversampled by the oversampling unit in accordance with the third clock signal generated by the clock generator.
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Specification