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Communication method between a personal computer and communication module

  • US 5,574,725 A
  • Filed: 08/11/1994
  • Issued: 11/12/1996
  • Est. Priority Date: 01/08/1993
  • Status: Expired due to Term
First Claim
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1. A method of communicating both control information and data on a dedicated, point-to-point connection between a communications module and a personal computer, comprising the steps of:

  • creating a data packet having a data packet identifier, a length indicator and a variable amount of data;

    creating a compressed voice packet having a voice packet identifier and a fixed mount of compressed voice data, the compressed voice data having been compressed using a voice compression algorithm;

    creating a qualified packet having a qualified packet identifier and a plurality of command identifiers for communicating control information;

    asynchronously transmitting the data packet, the voice packet and the qualified packet in any order from the personal computer to the communications module one packet at a time through the dedicated connection;

    receiving the data packet, the voice packet and the qualified packet at the communications module; and

    switching the communications module between data or control state in response to the receipt of the qualified packet.

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