Company Filing History:
Years Active: 2013-2018
Title: Innovations of Chung-Han Cheng
Introduction
Chung-Han Cheng is a notable inventor based in Kaohsiung, Taiwan. He has made significant contributions to the field of technology, particularly in the development of fingerprint sensing devices and touch input systems. With a total of two patents to his name, Cheng's work showcases his innovative approach to solving complex problems in electronic interfaces.
Latest Patents
Cheng's latest patents include an "Operating method for a fingerprint sensing device and fingerprint sensing system." This invention involves a fingerprint sensing system that comprises a fingerprint sensing device and a power supply circuit. The fingerprint sensing device features a high-voltage input terminal and a low-voltage input terminal. During the scanning phases, the power supply circuit provides a first voltage to the high-voltage input terminal and a second voltage to the low-voltage input terminal. In the read phases, it supplies a third voltage to the high-voltage input terminal and a fourth voltage to the low-voltage input terminal. The first voltage difference is greater than the second voltage difference, enhancing the device's performance.
Another significant patent is for an "Electronic stylus, capacitive touchpad module, and apparatus for touch input." This electronic stylus emits an excitation signal to apply to a trace of a capacitive touchpad module near a touch point when it touches the module. This innovation allows the capacitive touchpad module to identify the touch point based on the waveform variation of the charging/discharging signal in the trace.
Career Highlights
Chung-Han Cheng is currently employed at Elan Microelectronics Corporation, where he continues to push the boundaries of technology. His work at the company has been instrumental in advancing the capabilities of touch input devices and fingerprint sensing technologies.
Collaborations
Cheng has collaborated with notable coworkers, including I-Hau Yeh and Chi-Tein Yeh. Their combined expertise has contributed to the successful development of innovative technologies in their field.
Conclusion
Chung-Han Cheng's contributions to technology through his patents reflect his dedication to innovation. His work in fingerprint sensing and touch input systems demonstrates the potential for advancements in electronic interfaces. His ongoing efforts at Elan Microelectronics Corporation continue to inspire future developments in the industry.