Forward Citations = 183

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12 inventors (with patents filed for the assignee):

Mark Robert Cromack (3 out of 8 patents)

David Y Wong (1 out of 5 patents)

Jan Vanderford (1 out of 2 patents)

4. Xiao-Ling Zhang (1 out of 1 patent)

5. R Anthony Bladon (1 out of 1 patent)

6. David Brahm (1 out of 1 patent)

7. David Trandal (1 out of 1 patent)

8. Shawn W Smith (1 out of 1 patent)

9. Vijay R Raman (1 out of 1 patent)

10. Nam H Pham (1 out of 1 patent)

11. James M Underwood (1 out of 1 patent)

12. Chin-hui Lee (1 out of 2 patents)

6 patents: Sort by Forward Citations

1. 6088428 - Voice controlled messaging system and processing method (2000-07-11),

2. 5805673 - Method and apparatus for reliable access to audio and facsimile message (1998-09-08),

3. 5400394 - Adaptive echo canceller for voice messaging system (1995-03-21),

4. 5267322 - Digital automatic gain control with lookahead, adaptive noise floor (1993-11-30),

5. 5163050 - Configurable parameter DTMF detector (1992-11-10),

6. 4689760 - Digital tone decoder and method of decoding tones using linear (1987-08-25),

Company Overview

Digital Sound Corporation is a leading provider of audio solutions for businesses and consumers. With over 20 years of experience in the industry, we offer a wide range of high-quality digital sound systems, speakers, headphones, and accessories. Our products are known for their exceptional sound quality, durability, and innovative features. Whether you're looking for professional audio equipment for your office or premium headphones for personal use, Digital Sound Corporation has you covered.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

6 Patents

#18 in Carpinteria, CA

#10,570 in California

#44,981 in US

Carpinteria, CA, United States of America

Digital Sound Corporation

Forward Citations = 183

12 inventors:

Mark Robert Cromack (3 out of 8 patents)

David Y Wong (1 out of 5 patents)

Jan Vanderford (1 out of 2 patents)

4. Xiao-Ling Zhang (1 out of 1 patent)

5. R Anthony Bladon (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Digital Sound Corporation. Retrieved from https://idiyas.com/company/digital-sound

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]