Ping Sheng

Title: Innovations of Ping Sheng

Introduction

Ping Sheng is a notable inventor based in Princeton, NJ (US). He has made significant contributions to the field of optical technology, holding a total of 4 patents. His work focuses on enhancing the efficiency and effectiveness of optical playback systems.

Latest Patents

One of his latest patents is titled "Optimal polarization for the optical readout of high density video." This invention addresses the recovery of data recorded in elongated information tracks, which consist of alternating depressed and non-depressed areas. The optical playback system he developed employs a laser source to focus a light spot on the information track. A light detector translates the depressions into frequency-modulated electrical signals, with the signal strength being influenced by the polarization of the light spot. His system includes apparatus for orienting the polarization to enhance the signal strength of the detector output.

Another significant patent is the "Diffractometer for measuring signal depth and width." In this invention, an incident light beam illuminates a disc with recorded signal elements in the form of spaced depressions. The structure of these depressions acts as a diffraction grating, reflecting the light beam into diverging fans of light. Polarizers are used to polarize the light beam in orthogonal directions, and photodetectors measure the reflected light power. The ratio of outputs from these detectors indicates the depth of the depressions.

Career Highlights

Ping Sheng is associated with RCA Inc., a company known for its innovations in electronics and technology. His work has contributed to advancements in optical systems, particularly in data recovery and measurement techniques.

Collaborations

Throughout his career, Ping Sheng has collaborated with notable individuals such as William Ronald Roach and Arthur Herbert Firester. These collaborations have likely enriched his research and development efforts.

Conclusion

Ping Sheng's contributions to optical technology through his patents demonstrate his innovative spirit and commitment to advancing the field. His work continues to influence the development of efficient optical systems.