MODEM USING BATCH PROCESSING OF SIGNAL SAMPLES
First Claim
Patent Images
1. A modem comprising:
- a. an analog to digital converter for sampling an analog signal on a communications line and providing line sample values at an output; and
b. a processor, receiving the output of said analog to digital converter, and processing batches of line sample values at one time into one or more symbols.
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Abstract
A communications modem, having a processor, interacts with an analog to digital converter and with a digital to analog converter (codec) and does batch processing of samples from the communications line and batch processing of samples from the host to be applied to the communications line. The batch processing lowers the processing rate needed for the modem processor.
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Citations
19 Claims
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1. A modem comprising:
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a. an analog to digital converter for sampling an analog signal on a communications line and providing line sample values at an output; and
b. a processor, receiving the output of said analog to digital converter, and processing batches of line sample values at one time into one or more symbols. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of operating a modem having a processor, comprising the steps of:
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a. repeatedly sampling signal levels on an analog line;
b. storing a plurality of signal level samples; and
c. processing a plurality of signal level samples with each processor access to the stored signal level samples. - View Dependent Claims (11, 12, 14, 16, 17)
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13. A method of operating a modem having a processor, comprising the steps of:
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a. receiving digital information from an application;
b. converting the digital information into representations of communications symbols;
c. storing said representations; and
d. processing a plurality of stored representations with each processor access to stored representations.
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15. A communications system comprising:
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a. a communications network; and
b. at least two computers connected to said network by respective communications lines, at least one of which comprises a modem, having a processor, receiving the output of an analog to digital converter which samples a communications line connected to said modem producing line sample values, and processing batches of line sample values at one time into one or more communications symbols.
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18. A computer program product, comprising:
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a. a memory medium; and
b. a computer program stored on said memory medium, said computer program comprising instructions for repeatedly sampling signal levels on an analog line, storing a plurality of signal level samples and processing a plurality of signal level samples with each processor access to the stored signal level samples.
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19. A method of operating a modem having a processor, comprising the steps of:
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a. receiving digital information from an application;
b. converting the digital information into representations of communications symbols;
c. storing said representations; and
d. processing a plurality of stored representations with each processor access to stored representations.
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Specification