This inventor holds 4 USPTO granted patents. Top assignee: Powerwave Technologies, Inc.. Active years: 2000-2003.
Company Filing History:
Years Active: 2000-2003
Title: The Innovations of Do B Shin
Introduction
Do B Shin is a notable inventor based in Laguna Hills, CA (US). He has made significant contributions to the field of RF power amplification, holding a total of 4 patents. His work focuses on enhancing the performance and efficiency of power amplifiers, which are crucial in various communication technologies.
Latest Patents
One of his latest patents is titled "Low cost, pilotless, feed forward compensation for a power amplifier." This invention relates to a low-cost feed forward RF power amplifier arrangement that amplifies an RF input signal using a main power amplifier operating as a class A/B amplifier. The method modifies the input signal to compensate for distortion added by the main power amplifier. The circuit allows for injecting a delayed version of the input signal through fixed gain-phase circuitry, resulting in an amplified signal by the error amplifier of the second loop. A digitally controlled processor iteratively modifies various phase and gain controls to adjust the output of the amplifier.
Another significant patent is the "Multichannel amplification system using mask detection." This apparatus and method reduce out-of-band frequency components of an amplified multichannel RF signal, which can have at least two frequency bandwidth-limited signal channels. Each channel has a respective carrier frequency that is not known in advance. The system features a network for amplifying an input signal and a control system that detects energy in the out-of-band frequency components, allowing for the adjustment of electrical characteristics to reduce unwanted energy.
Career Highlights
Do B Shin is currently employed at Powerwave Technologies, Inc., where he continues to innovate in the field of RF technology. His work has been instrumental in developing advanced amplification systems that enhance communication capabilities.
Collaborations
Throughout his career, Do B Shin has collaborated with notable colleagues, including Richard D Posner and Charles R Gentzler. These collaborations have contributed to the advancement of technology in their respective fields.
Conclusion
Do B Shin's contributions to RF power amplification demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of the complexities involved in signal amplification, making him a valuable asset in the technology sector.