Company Filing History:
17 out of 1,416 
1 out of 497 
Years Active: 2008-2025
Title: **Gim-Eng Chew: A Luminary in Optical Engineering**
Introduction
Gim-Eng Chew, based in Penang, Malaysia, is a notable inventor known for his significant contributions to optical engineering. With an impressive portfolio of 18 patents, he has made a considerable impact in the field through his innovative designs and enhancements.
Latest Patents
Chew's recent patents showcase his expertise and ingenuity in optical systems. One of his latest inventions is a "Light control circuit of optical encoder and operating method thereof." This patent introduces a complex light control circuit consisting of a light detector, a frequency detector, an error amplifier, an NMOS driver, and a light source. The frequency detector identifies signal frequencies based on voltage signals, generating a control signal that allows the NMOS driver to adjust the drive current of the light source. Notably, the error amplifier plays a critical role in regulating response times by changing its bandwidth according to the control signal.
Another noteworthy patent is the "Optical encoder with two index photodiodes having different width from position photodiodes." This invention features an optical encoder equipped with a photodiode array and a code disk. The array includes multiple sets of position photodiodes and two index photodiodes positioned adjacently. Ingeniously, some position photodiodes are partially covered to minimize total harmonic distortion, enhancing the encoder's performance.
Career Highlights
Throughout his career, Gim-Eng Chew has held positions at leading technology firms, including Pixart Imaging Incorporated and Avago Technologies. His experience in these innovative companies has allowed him to refine his skills and contribute to cutting-edge optical technologies.
Collaborations
Chew has collaborated with prominent professionals in the industry, including Kuan-Choong Shim and Swee-Lin Thor. These collaborations demonstrate his ability to work effectively within teams to advance technological innovations.
Conclusion
Gim-Eng Chew exemplifies the spirit of innovation in optical engineering. His 18 patents reflect a deep commitment to developing technologies that enhance optical systems' functionality and precision. As he continues to contribute to the field, his work serves as an inspiration for aspiring inventors and engineers alike.