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Method and apparatus for transmitting and receiving data using continuous tone control squelch system

  • US 20020028702A1
  • Filed: 04/19/2001
  • Published: 03/07/2002
  • Est. Priority Date: 04/19/2000
  • Status: Abandoned Application
First Claim
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1. A method for transmitting and receiving data using a continuous tone control squelch system (CTCSS), comprising the steps of:

  • a) dividing an effective frequency band of said CTCSS into regular intervals, setting the divided intervals as channels and assigning data code values respectively to the set channels;

    b) for data transmission, successively transmitting CTCSS frequency signals corresponding respectively to code values of specific data; and

    c) for data reception, converting successively received CTCSS frequency signals into corresponding data code values, respectively.

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