For the Inventor, By the Inventor

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San Jose, CA, United States of America

Sirf Technology Holdings, Inc.

Calculating rank

USPTO Granted Patents = 26

% Expired Patents = 61.5

EPO Patents = 1

Forward Citations = 333

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38 inventors (with patents filed for the assignee):

Zhike Jia (11 out of 17 patents)

Chi-Shin Wang (11 out of 21 patents)

Shaowei Han (6 out of 16 patents)

4. Lionel Jacques Garin (3 out of 115 patents)

5. Yue-Meng Chen (3 out of 3 patents)

6. EnYuan Tu (3 out of 3 patents)

7. Jun Mo (3 out of 6 patents)

8. Hansheng Wang (3 out of 5 patents)

9. Gengsheng Zhang (2 out of 128 patents)

10. Gregory Turetzky (2 out of 28 patents)

11. Changlin Ma (1 out of 7 patents)

12. William Kerry Keal (1 out of 51 patents)

13. Richard McConnell (1 out of 19 patents)

14. Hongyu Zhang (1 out of 9 patents)

15. Sundar Raman (1 out of 34 patents)

Core Competencies:

Ephemeris Download

Weak Signals

Signal Acquisition

GPS Receiver

Navigation Device

Tracking Method

Power Management

Numerical Control Oscillators

Bit Synchronization

Phase Locked Loop

Multi-Mode GPS

High Sensitivity GNSS

26 patents: Sort by Forward Citations

1. 8094758 - Ephemeris download from weak signals (2012-01-10),

2. 8086405 - Compensation for mounting misalignment of a navigation device (2011-12-27),

3. 8000378 - Narrow correlator technique for multipath mitigation (2011-08-16),

4. 7924220 - Method and apparatus for weak data frame sync in a positioning system (2011-04-12),

5. 7903028 - Ephemeris download from weak signals (2011-03-08),

6. 7864898 - Systems and methods for signal acquistion in navigational satellite signal receivers (2011-01-04),

7. 7859456 - Method of mixed data assisted and non data assisted navigation signal acquisition, tracking and reacquisition (2010-12-28),

8. 7847726 - Navigational signal tracking in low power mode (2010-12-07),

9. 7830951 - Efficient and flexible numerical controlled oscillators for navigational receivers (2010-11-09),

10. 7778311 - Bit synchronization for weak navigational satellite signals (2010-08-17),

11. 7743177 - High sensitivity global navigation satellite system (GNSS) receiver platform having DMA controller for transferring between internal and external memory (2010-06-22),

12. 7719466 - Communications systems that reduces auto-correlation or cross-correlation in weak signals (2010-05-18),

13. 7693211 - Fast fourier transform based phase locked loop for navigational receivers (2010-04-06),

14. 7639181 - Method and device for tracking weak global navigation satellite system (GNSS) signals (2009-12-29),

15. 7623067 - Fast search GPS receiver (2009-11-24),

Company Overview

Sirf Technology Holdings, Inc. is a technology company based in San Jose, California, specializing in advanced semiconductor solutions and software for various applications. The organization focuses on developing innovative technologies that enhance connectivity and performance in consumer electronics, automotive systems, and industrial applications. With a commitment to research and development, Sirf Technology aims to drive progress in the fields of wireless communication and integrated circuit design, contributing to the evolution of smart technologies.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

26 Patents

#290 in San Jose, CA

#3,044 in California

#12,875 in US

#24,848 in the World

San Jose, CA, United States of America

Sirf Technology Holdings, Inc.

Forward Citations = 333

38 inventors:

Zhike Jia (11 out of 17 patents)

Chi-Shin Wang (11 out of 21 patents)

Shaowei Han (6 out of 16 patents)

4. Lionel Jacques Garin (3 out of 115 patents)

5. Yue-Meng Chen (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sirf Technology Holdings, Inc.. Retrieved from https://idiyas.com/company/sirf-technology-holdings

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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