Patent · US Expired

GPS RF front end IC with programmable frequency synthesizer for use in wireless phones

US6931233B1 · kind B1 · utility

45Cited by

138References

3Claims

0Family size

Assignee

SIRF Technology, Inc. · US

Inventors

Robert Tso · Hawthorne, US
Noshir Dubash · Chandler, US
Tao Zhang · Beijing, CN

Key dates

Filing date	Aug 31, 2001
Grant date	Aug 16, 2005
Priority date	—
Expiry date	May 21, 2023

Classification

Technology area (CPC G)Physics
CPC primaryG01S19/36
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A GPS RF Front End IC containing a Programmable Frequency synthesizer is disclosed. The GPS RF front end IC having a programmable frequency synthesizer allows a relatively fixed internal frequency plan while able to use a number of different reference frequencies provided by the host platform, which can be a wireless phone, or other such device, which can provide an accurate reference frequency signal.

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