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Low-rate speech coder for non-speech data transmission

  • US 6,345,251 B1
  • Filed: 06/15/1999
  • Issued: 02/05/2002
  • Est. Priority Date: 06/15/1999
  • Status: Expired due to Term
First Claim
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1. In a digital cellular system, a speech encoding system capable of encoding and transmitting both speech signals and low rate data signals comprising:

  • a low rate data source capable of generating low rate data signals;

    a low rate data encoder for receiving the low rate data signals and transforming the low rate data signals into modified low rate data signals; and

    a speech encoder for receiving and encoding both speech signals and modified low rate data signals, prior to the signals being transmitted over a corresponding communications link, wherein the low rate data encoder transforms the low rate data signals so that they are specifically compatible with the speech encoder.

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