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High speed modem

  • US 7,194,007 B1
  • Filed: 02/01/2002
  • Issued: 03/20/2007
  • Est. Priority Date: 09/17/2001
  • Status: Expired due to Term
First Claim
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1. A method of data communication over a first time division multiplexed bus, including one or more digital signal lines, said method comprising:

  • determining whether an incoming call is a voice call or a data call;

    receiving an analog data signal over a voiceband of a telephone line from a first analog modem for said data call;

    utilizing a linear coding process to generate a plurality of digitized analog data signal samples from said analog data signal;

    transmitting said plurality of digitized analog data signal samples via said one or more digital signal lines of said first time division multiplexed bus to a second analog modem;

    demodulating said plurality of digitized analog data signal samples by said second analog modem to generate digital data;

    transmitting said digital data by said second analog modem over one or more digital signal lines of a second time division multiplexed bus;

    utilizing a non-linear coding process to generate a plurality of digitized analog voice signal samples from an analog voice signal received over said voiceband of said telephone line for said voice call; and

    transmitting said plurality of digitized analog voice signal samples via one or more digital signal lines of a third time division multiplexed bus.

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