Location History:
- Plainsboro, NJ (US) (1987)
- Plainsboro Township, Middlesex County, NJ (US) (1987)
Company Filing History:
Years Active: 1987
Title: Walter H. Demmer: Innovator in Digital Television Technology
Introduction
Walter H. Demmer is a notable inventor based in Plainsboro Township, Middlesex County, NJ. With five patents to his name, he has made significant contributions to the field of digital television technology. His work primarily focuses on improving the quality and reliability of digital video signals.
Latest Patents
One of Walter H. Demmer's latest patents is for a frequency division multiplexed analog to digital converter, designed for digital television receivers. This invention includes a line-locked clock that utilizes a digital phase locked loop to regenerate quadrature phase related subcarrier signals. These signals synchronize the demodulation of chrominance signal components from composite video signals, ensuring accurate color information extraction. Moreover, it addresses challenges posed by nonstandard video signals—such as those from video tape recorders—by stabilizing color information signals against frequency instabilities.
Another recent innovation is the chrominance signal phase locked loop system for digital television receivers. This invention employs a line-locked clock signal and includes demodulation circuitry for producing a digital oscillatory signal, which is especially important for extracting color information from incoming video signals. The system employs an analog voltage-controlled oscillator that generates oscillatory signals at twice the color subcarrier frequency, contributing to the synchronization and accuracy of color difference signals necessary for high-quality video output.
Career Highlights
Walter H. Demmer has spent his career at RCA Inc., a prominent company in the electronics and telecommunications industry. His research and innovations have played a pivotal role in enhancing digital television technology, specifically in signal processing and color reproduction.
Collaborations
Throughout his career, Demmer has collaborated with talented individuals such as Leopold A. Harwood and Chandrakant Bhailalbhai Patel. These collaborations have fostered an environment of shared knowledge and expertise, allowing for advancements in their field.
Conclusion
Walter H. Demmer stands out as an influential inventor in the realm of digital technology. His innovations in the area of digital television have not only advanced industry standards but have also paved the way for future developments in video technology. As the landscape of digital media continues to evolve, the contributions of inventors like Demmer remain pivotal.
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