For the Inventor, By the Inventor

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Austin, TX, United States of America

Sigmatel, Inc.

USPTO Granted Patents = 218

% Expired Patents = 33.9

Trademarks = 1

Forward Citations = 1,908

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97 inventors (with patents filed for the assignee):

Michael R May (33 out of 101 patents)

Marcus William May (30 out of 43 patents)

Matthew Derrell Felder (26 out of 45 patents)

4. Matthew Brady Henson (16 out of 23 patents)

5. Mathew A Rybicki (15 out of 91 patents)

6. Darrell Tinker (14 out of 21 patents)

7. Daniel Patrick Mulligan (14 out of 28 patents)

8. H Spence Jackson (13 out of 24 patents)

9. David Cureton Baker (12 out of 38 patents)

10. Russell Alvin Schultz (11 out of 13 patents)

11. Antonio Torrini (10 out of 32 patents)

12. Jeffrey Donald Alderson (10 out of 61 patents)

13. Shahriar Rokhsaz (7 out of 95 patents)

14. Erich Lowe (7 out of 7 patents)

15. Michael A Margules (6 out of 8 patents)

Core Competencies:

Digital Audio Processing

Power Management

Memory Control

Wireless Transceiver

Decimation Filter

Audio Signal Processing

Integrated Circuit

Touch Screen Driver

Non-Volatile Memory

Harmonic Distortion

Sample Rate Conversion

Handheld Audio System

218 patents: Sort by Forward Citations

1. 9547623 - Flexible memory interface system for independently processing different portions of an instruction (2017-01-17),

2. 9231562 - Decimation filter (2016-01-05),

3. 9172417 - Power management for a battery-powered handheld audio device (2015-10-27),

4. 9015375 - Buffer controller, codec and methods for use therewith (2015-04-21),

5. 8862253 - Gain control module and applications thereof (2014-10-14),

6. 8861749 - Audio output driver for reducing electromagnetic interference and improving audio channel performance (2014-10-14),

7. 8811929 - Power management for a battery-powered handheld audio device (2014-08-19),

8. 8639946 - System and method of using a protected non-volatile memory (2014-01-28),

9. 8639370 - Audio source system and method (2014-01-28),

10. 8635261 - Decimation filter (2014-01-21),

11. 8477248 - System and method of demodulating audio signals (2013-07-02),

12. 8379730 - Method for determining display order of VOPS in decoder end or MPEG image system and device for executing the same (2013-02-19),

13. 8189384 - System and method to control one time programmable memory (2012-05-29),

14. 8130871 - Integrated circuit having radio receiver and methods for use therewith (2012-03-06),

15. 8117354 - Automatically disabling input/output signal processing based on the required multimedia format (2012-02-14),

Sigmatel, Inc. is a leading provider of semiconductor solutions for the audio, voice, and multimedia markets. With a focus on delivering high-performance and innovative products, Sigmatel has established itself as a trusted partner for customers in the consumer electronics industry. The company's expertise in audio processing technology has enabled it to develop cutting-edge solutions for a wide range of applications, from smartphones and tablets to automotive infotainment systems.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

218 Patents

#13 in Austin, TX

#111 in Texas

#1,918 in US

#3,912 in the World

Austin, TX, United States of America

Sigmatel, Inc.

Forward Citations = 1,908

97 inventors:

Michael R May (33 out of 101 patents)

Marcus William May (30 out of 43 patents)

Matthew Derrell Felder (26 out of 45 patents)

4. Matthew Brady Henson (16 out of 23 patents)

5. Mathew A Rybicki (15 out of 91 patents)

Please report any incorrect information to [email protected]

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