Company Filing History:
Years Active: 2013-2019
Title: Changhua Cao: Innovator in Power Amplifiers and Time-to-Digital Converters
Introduction
Changhua Cao is a notable inventor based in Austin, TX, who has made significant contributions to the fields of power amplifiers and time-to-digital converters. With a total of 2 patents, his work showcases innovative solutions that enhance electronic performance and efficiency.
Latest Patents
One of Changhua's latest patents is a Class-F power amplifier matching network. This invention features a class-F power amplifier that includes a first and a second switch operating in differential mode. It incorporates second harmonic trap circuitry that selectively terminates the drain terminals to ground at a second harmonic frequency. The circuitry consists of various lumped inductive and capacitive components, along with a common mode trap and a matching network designed to reduce the imbalance of drain terminal impedance between first and third harmonics.
Another significant patent is for a time-to-digital converter. This device comprises a delay stage matrix and a measurement circuit. The delay stage matrix includes first and second delay lines that propagate a transition signal from a starting delay stage. Each delay line contains the same number of delay stages coupled in series, generating delayed signals. The measurement circuit determines the time of the transition signal by sampling these delayed signals, producing a digital representation of the time.
Career Highlights
Changhua has worked with prominent companies in the technology sector, including MediaTek Singapore Pte. Ltd. and MediaTek Corporation. His experience in these organizations has contributed to his expertise in developing advanced electronic components.
Collaborations
Throughout his career, Changhua has collaborated with talented individuals such as Xiaochuan Guo and Caiyi Wang. These partnerships have fostered innovation and the exchange of ideas in the field of electronics.
Conclusion
Changhua Cao's contributions to the fields of power amplifiers and time-to-digital converters highlight his innovative spirit and technical expertise. His patents reflect a commitment to advancing technology and improving electronic performance.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.