Transmission and receiver system operating on different frequency bands
First Claim
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1. A method for an apparatus to process digital audio data, comprising:
- demodulating a wireless radio frequency signal in a first frequency band transmitted by a first remote station to generate first compressed digital audio data;
storing the first compressed digital audio data in memory;
demodulating a wireless radio frequency signal in a second frequency band transmitted by a second remote station to generate second compressed digital audio data, third compressed digital audio data, and a command instructing the apparatus to switch to a third remote station;
storing the third compressed digital audio data in the memory;
providing for the selection of the first or the third compressed digital audio data to allow for;
retrieving the selected first or the third compressed digital audio data from the memory;
decompressing the retrieved compressed digital audio data to generate first decompressed digital audio data; and
processing the first decompressed digital audio data to generate a first analog audio signal;
providing for the selection of the second compressed digital audio data to allow for;
decompressing the second compressed digital audio data to generate second decompressed digital audio data; and
processing the second decompressed digital audio data to generate a second analog audio signal; and
responsive to the command;
demodulating a wireless radio frequency signal transmitted by the third remote station to generate additional compressed digital audio data for processing to a third analog audio signal.
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Abstract
A receiver can extract digital data from wireless radio frequency signal. The digital data contains at least two sets of compressed digital audio data each associated with a different set of audio program. One set of compressed digital audio data is delivered in a first frequency band and the other set in a second frequency band. One of the sets is stored in a memory system and the remaining set is not stored in the memory system. A user can select one of the sets of compressed digital audio data for decompression and then conversion to analog audio signal.
188 Citations
14 Claims
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1. A method for an apparatus to process digital audio data, comprising:
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demodulating a wireless radio frequency signal in a first frequency band transmitted by a first remote station to generate first compressed digital audio data; storing the first compressed digital audio data in memory; demodulating a wireless radio frequency signal in a second frequency band transmitted by a second remote station to generate second compressed digital audio data, third compressed digital audio data, and a command instructing the apparatus to switch to a third remote station; storing the third compressed digital audio data in the memory; providing for the selection of the first or the third compressed digital audio data to allow for; retrieving the selected first or the third compressed digital audio data from the memory; decompressing the retrieved compressed digital audio data to generate first decompressed digital audio data; and processing the first decompressed digital audio data to generate a first analog audio signal; providing for the selection of the second compressed digital audio data to allow for; decompressing the second compressed digital audio data to generate second decompressed digital audio data; and processing the second decompressed digital audio data to generate a second analog audio signal; and responsive to the command;
demodulating a wireless radio frequency signal transmitted by the third remote station to generate additional compressed digital audio data for processing to a third analog audio signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification