×

High speed precision pseudo random noise shift control for fast multiple channel global positioning system signal re-tracking

  • US 20020009126A1
  • Filed: 03/13/2001
  • Published: 01/24/2002
  • Est. Priority Date: 03/13/2000
  • Status: Active Grant
First Claim
Patent Images

1. An apparatus comprising:

  • a control circuit to generate a channel enable signal based on control information from a processor at a first clock signal having a first clock frequency, the channel enable signal selecting a channel for a satellite in a global positioning system (GPS), the channel operating at a coarse/acquisition (C/A) clock signal having a second clock frequency;

    an increment register to store an increment value for the selected channel at the first clock signal; and

    an accumulator coupled to the increment register and the control circuit to generate the PN clock signal using the increment value.

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