Jinhua Ni

Title: Jinhua Ni: Innovator in Optical Technologies

Introduction

Jinhua Ni is a prominent inventor based in Shanghai, China. He has made significant contributions to the field of optical technologies, holding a total of 9 patents. His work focuses on enhancing the performance of optical systems through innovative methods and apparatus.

Latest Patents

One of Jinhua Ni's latest patents is the "Automatic ambient light cancellation method for optical front-end methods and apparatus." This invention includes a coarse loop and fine loop in a feedback circuit designed to cancel out currents generated by the detection of ambient light. The optical front end features a single-ended photo-diode connected to a transimpedance amplifier (TIA), followed by a buffer stage to generate a differential output. The feedback loop controls a current digital to analog converter (iDAC), which is utilized to eliminate undesired current, such as that from ambient light. This innovation prevents the TIA from saturating and maintains good signal quality with greater sensitivity.

Another notable patent is related to transconductance circuits and methods. This patent discloses transconductance circuits, including an amplifier with a first input linked to a voltage input of the transconductance circuit. A switch is connected between the output of the amplifier and a second input of the amplifier, showcasing Jinhua Ni's expertise in circuit design.

Career Highlights

Throughout his career, Jinhua Ni has worked with reputable companies, including Analog Devices International Unlimited Company and Analog Devices Global. His experience in these organizations has allowed him to refine his skills and contribute to cutting-edge technologies in the optical domain.

Collaborations

Jinhua Ni has collaborated with talented individuals such as Dan Li and Hui Shen, who is a woman. These collaborations have further enriched his work and fostered innovation in his projects.

Conclusion

Jinhua Ni is a distinguished inventor whose contributions to optical technologies have made a significant impact in the field. His innovative patents and collaborations reflect his dedication to advancing technology and improving optical systems.