Douglas J Hatch

Title: Douglas J Hatch: Innovator in Frequency Control and Television Access

Introduction

Douglas J Hatch is a notable inventor based in Chittenango, NY (US). He has made significant contributions to the field of technology, particularly in the areas of frequency control and television access. With a total of 2 patents, Hatch has demonstrated his innovative capabilities and technical expertise.

Latest Patents

Hatch's latest patents include a "Phase-locked loop capable of generating a plurality of stable frequency signals." This invention features a phase-locked loop that utilizes multiple voltage-controlled oscillators, which are sequentially coupled to the output of a phase-sensitive detector via a multiplexer. Additionally, RF switches are employed to synchronize the oscillator outputs to a programmable divider, enhancing the functionality of the system. Another significant patent is the "Method and apparatus for controlling access to selected television programs." This invention addresses subscriber access in a CATV system by adding nonstandard horizontal synchronizing pulses to selected television programs. These pulses prevent nonpaying subscribers from synchronizing their receivers, rendering the content unviewable.

Career Highlights

Douglas J Hatch is currently associated with North American Philips Corporation, where he continues to innovate and contribute to technological advancements. His work has had a lasting impact on the industry, showcasing his dedication to improving electronic systems.

Collaborations

Hatch has collaborated with notable colleagues, including Joseph P Bingham and Jeffrey L Cox. Their combined expertise has likely fostered an environment of innovation and creativity within their projects.

Conclusion

Douglas J Hatch is a distinguished inventor whose work in frequency control and television access has made a significant impact in the technology sector. His patents reflect his innovative spirit and commitment to advancing electronic systems.