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For the Inventor, By the Inventor

Austin, TX, United States of America

Crystal Semiconductor Corporation


USPTO Granted Patents = 104

Trademarks = 2

Forward Citations = 3,210

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75 inventors (with patents filed for the assignee):

goldMedal Eric J Swanson (23 out of 68 patents)

silverMedal Donald A Kerth (19 out of 73 patents)

bronzeMedal Navdeep S Sooch (14 out of 76 patents)

4.  Baker P Scott, Iii (10 out of 10 patents)

5.  Jeffrey William Scott (7 out of 176 patents)

6.  Michael James Callahan, Jr (6 out of 25 patents)

7.  Ka Yin Leung (6 out of 76 patents)

8.  Bruce Philip Del Signore (6 out of 26 patents)

9.  Charles D Thompson (5 out of 19 patents)

10.  Dan Bernard Kasha (5 out of 56 patents)

11.  Nariankadu Datatreya Hemkumar (5 out of 21 patents)

12.  Michael Vayden Jenkins (5 out of 15 patents)

13.  David R Welland (4 out of 135 patents)

14.  Shawn R McCaslin (4 out of 10 patents)

15.  Christopher A Ludden (4 out of 12 patents)


Core Competencies:
Audio Circuits
Digital Audio Playback
Speakerphone Circuit
Variable Time Delay
Reverberation Simulator
Adaptive Filter
Integrated CODEC
Analog-to-Digital Converter
Digital Filter
Tone Signal Generator
Current Reference
Liquid Crystal Display Driver

104 patents:

1. 6952621 - Single-chip audio circuits, methods, and systems using the same (2005-10-04),
2. 6356872 - Method and apparatus for storing digital audio and playback thereof (2002-03-12),
3. 6212273 - Full-duplex speakerphone circuit including a control interface (2001-04-03),
4. 6121811 - Variable time delay circuit and method (2000-09-19),
5. 6096960 - Period forcing filter for preprocessing sound samples for usage in a (2000-08-01),
6. 6091824 - Reduced-memory early reflection and reverberation simulator and method (2000-07-18),
7. 6088461 - Dynamic volume control system (2000-07-11),
8. 6088445 - Adaptive filter system having mixed fixed point or floating point and (2000-07-11),
9. 6052152 - Digital carrier synthesis by counting cycles for synchronization to a (2000-04-18),
10. 5978825 - Zero detection circuitry and methods (1999-11-02),
11. 5960401 - Method for exponent processing in an audio decoding system (1999-09-28),
12. 5923273 - Reduced power FIR filter (1999-07-13),
13. 5917917 - Reduced-memory reverberation simulator in a sound synthesizer (1999-06-29),
14. 5886658 - Serial port interface system and method for an analog-to-digital (1999-03-23),
15. 5825244 - Low power class AB integrated circuit amplifier having improved (1998-10-20),
Crystal Semiconductor Corporation is a leading provider of advanced semiconductor solutions for the consumer electronics industry. With a focus on innovation and quality, Crystal Semiconductor designs and manufactures high-performance integrated circuits that enable the development of cutting-edge technologies. Their diverse product portfolio includes audio amplifiers, digital signal processors, and mixed-signal integrated circuits. Through their commitment to customer satisfaction and technical excellence, Crystal Semiconductor has built a strong reputation as a trusted partner in the industry.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

104 Patents

#25 in Austin, TX

#200 in Texas

#3,527 in US

#7,315 in the World

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Austin, TX, United States of America

Crystal Semiconductor Corporation

Forward Citations = 3,210

75 inventors:

goldMedal Eric J Swanson (23 out of 68 patents)

silverMedal Donald A Kerth (19 out of 73 patents)

bronzeMedal Navdeep S Sooch (14 out of 76 patents)

4.  Baker P Scott, Iii (10 out of 10 patents)

5.  Jeffrey William Scott (7 out of 176 patents)

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