Mark J Rich

Title: Mark J Rich: Innovator in Digital Audio Broadcasting

Introduction

Mark J Rich is a notable inventor based in Menlo Park, CA (US). He has made significant contributions to the field of digital audio broadcasting, holding a total of 3 patents. His work focuses on enhancing the quality and reliability of audio transmission through innovative methods and technologies.

Latest Patents

One of Rich's latest patents is a method and apparatus for digital audio broadcasting and reception. This invention provides a radio broadcasting system that transmits a composite signal consisting of a frequency modulated (FM) analog signal and a multicarrier modulated digital signal. The system is designed to be resistant to multipath degradation, ensuring that both the FM signal and the digital multicarrier modulated signal remain fully coherent. The digital signal utilizes multiple carriers, which are maintained at a maximum amplitude significantly lower than that of the unmodulated FM signal. This design allows for rapid and reliable signal acquisition, facilitating coherent detection. The system is particularly suited for supporting compressed digital audio programming material.

Career Highlights

Throughout his career, Mark J Rich has worked with several companies, including USA Digital Radio, Inc. and Trilliant Networks, Inc. His experience in these organizations has contributed to his expertise in digital audio technologies and broadcasting systems.

Collaborations

Rich has collaborated with notable individuals in the industry, including John L Murphy and Randy Frei. These partnerships have likely enriched his work and led to advancements in the field of digital audio broadcasting.

Conclusion

Mark J Rich is a prominent inventor whose work in digital audio broadcasting has paved the way for advancements in audio transmission technology. His innovative patents and career achievements reflect his dedication to improving the quality of digital audio experiences.