This inventor holds 2 USPTO granted patents. Top assignee: Peripheral Imaging Corporation. Active years: 2002.
Company Filing History:
Years Active: 2002
Title: Pheng Tan: Innovator in Dynamic Thresholding Technology
Introduction
Pheng Tan is a notable inventor based in San Jose, California. He has made significant contributions to the field of imaging technology, particularly through his innovative patents. With a total of 2 patents, Tan has focused on enhancing the functionality and efficiency of contact image sensors.
Latest Patents
Pheng Tan's latest patents include a dynamic thresholding module with an IR LED light source for a contact image sensor. This invention features a dynamic threshold two-level A/D converter, also known as a tracking digitizer circuit. The module's circuitry comprises a comparator circuit and a tracking low-pass filter circuit. The dynamic thresholding module processes output signals from a CIS module to develop a variable background signal. This background signal is then compared to the CIS output signals in a comparator, which produces a two-level binary output digital signal. The design is intended for use with scanning devices, particularly CIS systems, and can be applied in various scenarios requiring pre-processed digitized video signals. The module is designed to be low-cost and low-density, allowing for easy integration with existing CIS modules without significantly increasing their size or manufacturing costs. Notably, the circuit occupies roughly half the space of existing digital circuits that serve similar purposes, and the inclusion of an IR LED enhances the device's ability to discriminate when scanning materials with colored backgrounds.
Career Highlights
Pheng Tan is currently associated with Peripheral Imaging Corporation, where he continues to innovate in the field of imaging technology. His work has been instrumental in advancing the capabilities of contact image sensors, making them more efficient and effective for various applications.
Collaborations
Tan has collaborated with notable colleagues, including Satoru C Tanaka and Hsin Fu Tseng, contributing to the development of cutting-edge technologies in imaging.
Conclusion
Pheng Tan's contributions to dynamic thresholding technology and contact image sensors highlight his role as a significant inventor in the field. His innovative patents reflect a commitment to enhancing imaging technology, making a lasting impact on the industry.