Fred W Spong

Title: The Innovations of Fred W. Spong

Introduction

Fred W. Spong is a notable inventor based in Lawrenceville, NJ (US), recognized for his contributions to optical recording technology. With a total of nine patents to his name, Spong has made significant advancements in the field of data recording and playback.

Latest Patents

Among his latest patents is the "Optical video or data tape record and playback apparatus." This invention provides a record/playback apparatus designed for recording and reproducing information signals using an optical tape medium. The apparatus features a laser source that is modulated according to the information signals. A switching mirror is positioned between the laser source and the optical tape, allowing the light beam to alternately scan helical tracks across the optical tape. In playback mode, a light detector captures the light reflected from the optical tape, which contains the recorded information.

Another significant patent is the "Multilayer record blank for use in optical recording." This invention involves a disc-shaped substrate coated with a light-reflective layer, such as aluminum. Over this reflective layer, a highly absorptive material is applied, which interacts with the recording laser's frequency. The coating parameters are meticulously chosen to create an anti-reflection condition at the recording light frequency. During playback, light of a constant intensity is focused on the information track, allowing a photodetector to develop a signal representative of the recorded information.

Career Highlights

Fred W. Spong has had a distinguished career at RCA Inc., where he has been instrumental in developing innovative technologies in optical recording. His work has significantly impacted the way data is recorded and played back, enhancing the efficiency and quality of optical media.

Collaborations

Throughout his career, Spong has collaborated with notable colleagues, including Thomas L. Credelle and William J. Hannan. These collaborations have fostered an environment of innovation and creativity, leading to groundbreaking advancements in their respective fields.

Conclusion

Fred W. Spong's contributions to optical recording technology have established him as a prominent figure in the field of inventions. His patents reflect a deep understanding of the complexities involved in data recording and playback, showcasing his innovative spirit and dedication to advancing technology.