×

Decoder for spectrum diffusion signals

  • US 4,651,327 A
  • Filed: 10/09/1985
  • Issued: 03/17/1987
  • Est. Priority Date: 10/12/1984
  • Status: Expired due to Term
First Claim
Patent Images

1. A decoder for spectrum diffusion signals comprising:

  • correlation means for comparing a pseudo-random-noise signal included in the spectrum diffusion signal with a predetermined Gold code identifying a specific channel and producing a back-diffusion signal which includes a peak when said pseudo-random-noise signal corresponds to said predetermined Gold code independent of the phase relation of said pseudo-random-noise signal and said Gold code;

    extraction signal generator means responsive to said back-diffusion signal for producing an extraction signal at a timing near that at which said back-diffusion signal value reaches said peak; and

    extraction means responsive to said extraction signal for extracting a data signal from said back-diffusion signal.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×