Chih-Chen Chang

Title: Innovations of Chih-Chen Chang

Introduction

Chih-Chen Chang is a notable inventor based in Taipei, Taiwan. He has made significant contributions to the field of electronics, particularly in keyboard technology. His innovative approach has led to the development of a unique patent that enhances user experience.

Latest Patents

Chih-Chen Chang holds a patent for a "Composite function keyboard circuit." This invention includes a first matrix circuit, a first bias resistor group, a second matrix circuit, a second bias resistor group, and a controller. Each switch unit in the first matrix circuit is an ink-type force sensing switch, which varies its resistance based on the pressing mode of a keypress action. An electrical connection path is established between the ink-type force sensing switch and the corresponding bias resistor of the second bias resistor group. When the ink-type force sensing switch is electrically conductive, a divided sensing voltage is generated, allowing the controller to produce a corresponding key control instruction. Additionally, the cooperation of the first matrix circuit and the first bias resistor group effectively prevents ghost key issues.

Career Highlights

Chih-Chen Chang is currently employed at Primax Electronics Ltd., where he continues to innovate and develop new technologies. His work has been instrumental in advancing keyboard functionality and user interaction.

Collaborations

Chih-Chen Chang has collaborated with talented coworkers such as Yi-Liang Chen and Chien-Ming Li. Their combined expertise has contributed to the success of various projects within the company.

Conclusion

Chih-Chen Chang's contributions to keyboard technology through his innovative patent demonstrate his commitment to enhancing user experience in electronics. His work at Primax Electronics Ltd. continues to influence the industry positively.