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Fixed-length speech signal communication system capable of compressing silent signals

  • US 5,831,981 A
  • Filed: 12/13/1996
  • Issued: 11/03/1998
  • Est. Priority Date: 12/13/1995
  • Status: Expired due to Term
First Claim
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1. A fixed-length speech signal communication system comprising:

  • a background noise detecting means for receiving a transmitting signal including first speech components and first background noise components to detect said first background noise components;

    a silent signal generating means, connected to said background noise detecting means, for generating a silent signal when a duration of said detected first background noise components is longer than a first value;

    a cell assembling means, connected to said silent signal generating means, for assembling first fixed-length cells for said transmitting signal when said silent signal is not generated;

    a cell reassembling means for reassembling second fixed-length cells to regenerate receiving signals including second speech components and second background noise components; and

    a signal generating means, connected to said cell reassembling means, for transmitting said receiving signals when said cell reassembling means receives said second fixed-length cells within a predetermined time interval and for transmitting third background noise components when said cell reassembling means receives said second fixed-length cells within a time interval larger than said predetermined time interval.

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