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Method of digital signal transmission

  • US 4,856,025 A
  • Filed: 12/29/1986
  • Issued: 08/08/1989
  • Est. Priority Date: 12/26/1985
  • Status: Expired due to Term
First Claim
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1. A method of transmitting a digital signal, employing, in a transmission apparatus for transmitting digital data, a transmission signal having phase transition waveforms in respective continuous time slots of data, each phase transition waveform in each of the time slots having a varying rate of change of phase or at least one phase jump, wherein phase transition waveforms in any two time slots which are spaced apart from each other on a time axis by a prescribed number of time slots are identical to each other in shape irrespective of an information to be transmitted, the information to be transmitted being present in a phase difference between the phase transition waveforms in any two time slots spaced apart from each other on a time axis by the prescribed number of time slots.

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