×

Optical signal receiver with dual stage soft detection

  • US 7,340,185 B1
  • Filed: 04/22/2002
  • Issued: 03/04/2008
  • Est. Priority Date: 04/22/2002
  • Status: Expired due to Fees
First Claim
Patent Images

1. An optical signal receiver comprising:

  • a plurality of time delay elements each configured to receive a signal representative of an optical signal and output an associated time delay signal; and

    a plurality of threshold decision elements, each of said threshold decision elements configured to receive an associated one of said time delay signals and compare a single bit of said optical signal with a plurality of different decision threshold levels to provide a plurality of digital outputs, each of said plurality of digital outputs being associated with a comparison of said single bit with a different one of said decision threshold levels, said plurality of digital outputs for each of said threshold decision elements thereby being collectively indicative of a probability that said single bit has a particular binary value.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×