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Secured data transmission and error recovery mechanism in cordless telephones

  • US 5,073,932 A
  • Filed: 08/31/1990
  • Issued: 12/17/1991
  • Est. Priority Date: 08/31/1990
  • Status: Expired due to Term
First Claim
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1. A method for securing transmission of data between transmitting and receiving units of handset and base portions of a cordless phone while maintaining integrity of the transmitted data comprising:

  • transmission of a security code to ensure that random or unauthorized data is not accepted by the receiving unit;

    transmission of a message bit sequence to ensure that data is not misinterpreted;

    transmission of a command sequence comprising data sent by the transmitting unit; and

    transmission of an error detection code to ensure that errors arising within said message bit sequence and said command sequence are detected.

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