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For the Inventor, By the Inventor

Nuremberg, Germany

Walter Heinrich Demmer

This inventor holds 12 USPTO granted patents. Top assignees: Texas Instruments Corporation, Other. Active years: 1997-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Walter Heinrich Demmer. Retrieved from https://idiyas.com/inventor/walter-heinrich-demmer

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

Calculating rank
USPTO Granted Patents = 12

% Patents Active = 100.0

Average Co-Inventor Count = 1.9

ph-index = 5

Forward Citations = 81(Granted Patents)


Location History:

  • 90411 Nuremberg, DE (1997)
  • Nuremberg, DE (2002 - 2012)

Company Filing History:

goldMedal10 out of 29,922 
 
Texas Instruments Corporation
 patents
silverMedal2 out of 834,601 
Other
 patents

Years Active: 1997-2012

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12 patents (USPTO):Explore Patents
1. 8195972 - Jitter precorrection filter in time-average-frequency clocked systems (2012-06-05),
2. 7468763 - Method and apparatus for digital MTS receiver (2008-12-23),
3. 7362380 - Equilibrium based vertical sync phase lock loop for video decoder (2008-04-22),
4. 7274406 - Equilibrium based vertical sync phase lock loop for video decoder (2007-09-25),
5. 7173668 - Equilibrium based horizontal sync detector for video decoder (2007-02-06),
6. 7042523 - Video correction system and method using logarithmic conversion (2006-05-09),
7. 6956617 - Image scaling and sample rate conversion by interpolation with non-linear positioning vector (2005-10-18),
8. 6943847 - FM demodulator for SECAM decoder (2005-09-13),
9. 6912012 - Video decoder having lock algorithm that distinguishes between a noisy television signal input and a video recorder signal (2005-06-28),
10. 6459457 - Adaptive color comb filter (2002-10-01),
11. 5621477 - Digital decoder and method for decoding composite video signals (1997-04-15),
12. 5619270 - Sample rate converter and sample rate conversion method (1997-04-08),

Title: Walter Heinrich Demmer: Innovator in Digital Signal Processing

Introduction

Walter Heinrich Demmer is a notable inventor based in Nuremberg, Germany. He has made significant contributions to the field of digital signal processing, holding a total of 12 patents. His work has advanced technologies that are essential in modern communication systems.

Latest Patents

Demmer's latest patents include a "Jitter precorrection filter in time-average-frequency clocked systems." This invention focuses on synchronous circuitry for processing digital data, where the data is filtered to compensate for expected jitter in time-average frequency clock signals. The technology generates internal clock signals of a desired frequency, utilizing a jitter precorrection filter to apply a variable delay that corrects distortion caused by jitter in the clock cycle. Another significant patent is the "Method and apparatus for digital MTS receiver." This system provides an all-digital audio receiver for BTSC MTS audio signals, featuring a digital FM demodulator and a programmable digital signal processor for audio reproduction.

Career Highlights

Throughout his career, Demmer has worked with prominent companies, including Texas Instruments Corporation. His expertise in digital signal processing has positioned him as a key figure in the development of innovative audio and communication technologies.

Collaborations

Demmer has collaborated with notable individuals in the field, including Karl H Renner and Weider Peter Chang. These partnerships have contributed to the advancement of his inventions and the overall progress in digital signal processing.

Conclusion

Walter Heinrich Demmer's contributions to digital signal processing and his innovative patents have significantly impacted the field. His work continues to influence modern technology and communication systems.

Profile summary based on public USPTO records.
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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