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For the Inventor, By the Inventor

Sioux Falls, SD, United States of America

Glen R Wittrock

This inventor holds 4 USPTO granted patents. Top assignee: Sencore, Inc.. Active years: 1979-1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Glen R Wittrock. Retrieved from https://idiyas.com/inventor/glen-r-wittrock

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

USPTO Granted Patents = 4

% Patents Active = 100.0

Average Co-Inventor Count = 1.1

ph-index = 2

Forward Citations = 13(Granted Patents)


Company Filing History:

goldMedal4 out of 30 
 
Sencore, Inc.
 patents

Years Active: 1979-1989

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4 patents (USPTO):Explore Patents
1. 4823390 - FM stereo generator (1989-04-18),
2. 4760448 - Method of measuring amplitude variations of a video carrier and (1988-07-26),
3. 4721997 - Signal to noise ratio measurement by sampling noise outside carrier (1988-01-26),
4. 4160211 - Method and instrument for measuring the sensitivity of a radio receiver (1979-07-03),

Title: The Innovations of Glen R. Wittrock

Introduction

Glen R. Wittrock is a notable inventor based in Sioux Falls, SD (US). He has made significant contributions to the field of electronics, particularly in the development of FM stereo generators and methods for measuring amplitude variations in television signals. With a total of four patents to his name, Wittrock's work has had a lasting impact on audio and video technology.

Latest Patents

Wittrock's latest patents include an FM stereo generator designed for use as a modulator or in test instruments. This generator provides the conventional 19 KHz and 38 KHz signals, with the phase of the 19 KHz pilot subcarrier signal fixed relative to the 38 KHz carrier signal. The 38 KHz double sideband suppressed carrier signal is generated using a digital synthesis circuit, ensuring a stable output. The left and right stereophonic audio signals are processed through operational amplifiers to create sum and difference audio components. The difference component is then input into a digital-to-analog converter, which is responsive to the synthesis circuit, providing the necessary carrier signal. Additionally, Wittrock has developed a method for measuring amplitude variations of a video carrier, which involves converting a composite RF television signal to an IF signal and sampling the amplitudes of horizontal sync pulses.

Career Highlights

Wittrock has spent a significant portion of his career at Sencore, Inc., where he has been instrumental in advancing audio and video technology. His innovative designs and patents have contributed to the company's reputation as a leader in the electronics industry.

Collaborations

Wittrock has collaborated with various professionals in his field, including his coworker Barry A. Arneson. Their combined expertise has led to advancements in the technologies they have developed.

Conclusion

Glen R. Wittrock's contributions to the field of electronics through his patents and innovations have made a significant impact on audio and video technology. His work continues to influence the industry and inspire future inventors.

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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