Patent · US Active

Methods and apparatus for obtaining accurate GNSS time in a GNSS receiver

US7969355B2 · kind B2 · utility

0Cited by
14References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 15, 2009
Grant dateJun 28, 2011
Priority date—
Expiry dateMar 17, 2030

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG04R20/04
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A method for obtaining GNSS time in a GNSS receiver includes: deriving a relationship between a first clock signal and the received GNSS time; latching a second clock signal and the first clock signal at a first latching point to obtain a clock value A1 of the first clock signal and a clock value B1 of the second clock signal; calculating a GNSS time C1 corresponding to the clock value A1 according to the relationship; latching the first clock signal and the second clock signal at a second latching point to obtain a clock value A2 of the first clock signal and a clock value B2 of the second clock signal; and calculating a GNSS time C2 corresponding to the clock value A2 according to the GNSS time C1, the clock value B1, and the clock value B2.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.