×

Data recovery system and applications thereof in radio receivers

  • US 7,154,974 B2
  • Filed: 02/12/2002
  • Issued: 12/26/2006
  • Est. Priority Date: 02/12/2002
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for data recovery, the method comprises:

  • receiving an encoded signal at a transmit symbol rate, wherein the encoded signal includes first data values having a positive sign with respect to a reference and second data values having a negative sign with respect to the reference;

    determining at least one reference crossing of the encoded signal;

    determining a sampling phase based on the at least one reference crossing and a system symbol rate to produce a determined sampling phase, wherein the determining the sampling phase includes;

    setting an initial sampling phase with respect to the system symbol rate;

    setting an accumulator to a mid point value; and

    utilizing the initial sampling phase as the determined sample phase when the encoded signal is initially detected;

    updating the determined sampling phase based on at least one of an overflow of the accumulator and an underflow of the accumulator; and

    sampling the encoded signal at the updated determined sampling phase with respect to the system symbol rate to recapture data from the encoded signal.

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