Method and device for differentiating between data and voice digital signals
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United States of America Patent
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Apr 10, 2001
Grant Date -
N/A
app pub date -
Jun 4, 1998
filing date -
Jun 4, 1998
priority date (Note) -
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Abstract
A method and device for determining whether a stream of digital words, each comprising a plurality of binary digits, represents data signals, or represents digitized voice is disclosed. The method comprises the step of testing the steadiness or randomness of an individual bit within a predetermined sequence of each said digital words. If the individual bit is tested to be random, the stream of digital words represents data signals; and if the individual bit is test to be steady, the stream of digital words represents voice signals. The device comprises a shift registers to store the predetermined sequence of the digital words, a counter to control the shift register, and a gate arrays to determine steadiness or randomness of the individual bit within the predetermined sequence of each said digital words.
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