Patrick D Griffis

Title: The Innovations of Patrick D. Griffis

Introduction

Patrick D. Griffis is a notable inventor based in Indianapolis, IN, with a remarkable portfolio of eight patents. His work primarily focuses on advancements in audio signal processing and television technology. Griffis has made significant contributions to the field, showcasing his expertise and innovative spirit.

Latest Patents

One of his latest patents is the "Frequency translation phase-locked loop for separate or intercarrier." This invention provides a frequency translation phase-locked loop (PLL) designed to detect audio information from received television signals. The PLL features a switching arrangement that allows it to process the IF picture and sound carriers for audio detection in an intercarrier method or to process the IF sound carrier independently for a separate audio detection method.

Another notable patent is the "Switching arrangement for a stereophonic sound synthesizer." This system synthesizes stereophonic signals from an audio information signal source. It includes a transfer function circuit that produces a modulated signal varying in amplitude based on frequency. The system also features first and second amplifiers for providing amplified output signals, with a switch circuit that allows for matrixing or non-matrixing modes to generate synthesized stereophonic output signals.

Career Highlights

Patrick D. Griffis has built a successful career at RCA Inc., where he has been instrumental in developing innovative audio technologies. His work has not only advanced the field but has also contributed to the overall enhancement of audio and television systems.

Collaborations

Griffis has collaborated with fellow inventor Abraham E. Rindal, further enriching his contributions to the field of audio technology. Their partnership has led to the development of groundbreaking inventions that have impacted the industry.

Conclusion

Patrick D. Griffis is a distinguished inventor whose work in audio signal processing and television technology has left a lasting mark on the industry. His innovative patents and collaborations highlight his commitment to advancing technology and improving audio experiences.