Company Filing History:
Years Active: 2014-2025
Title: Yi-Chang Shih: Innovator in Signal Processing Technologies
Introduction
Yi-Chang Shih is a prominent inventor based in Hsinchu, Taiwan. He has made significant contributions to the field of signal processing, holding a total of 11 patents. His work focuses on enhancing the efficiency and functionality of communication systems.
Latest Patents
One of Yi-Chang Shih's latest patents is a signal receiving circuit and calibration method. This invention includes a radio frequency (RF) front-end circuit, a filter circuit, an amplifier circuit, an analog-to-digital converter (ADC), a compensation circuit, an adder circuit, and a control circuit. The RF front-end circuit down-converts the input signal to generate a down-converted signal. The filter circuit then filters this down-converted signal to produce a filtered signal. The amplifier circuit amplifies the filtered signal based on a control signal, generating an amplified signal. The ADC converts this amplified signal into a first digital code. The compensation circuit generates a compensation code based on the control signal and the gain. The adder circuit combines the compensation code and the first digital code to produce a second digital code, while the control circuit generates the control signal based on this second digital code.
Another notable patent is the transceiver circuit and control method of a frequency synthesizer. This invention features a transmitter circuit, a frequency synthesizer, and a control circuit. The transmitter circuit generates a transmission signal that is transmitted through an antenna. The frequency synthesizer produces a clock signal for the transmitter circuit. The control circuit generates a first control signal to manage the frequency synthesizer's loop bandwidth. When the transceiver circuit is in standby mode, the control circuit sets a first loop bandwidth. After switching to transmission mode, the control circuit adjusts the loop bandwidth to a second value.
Career Highlights
Yi-Chang Shih is currently employed at Realtek Semiconductor Inc., where he continues to innovate in the field of signal processing. His work has significantly impacted the development of communication technologies.
Collaborations
He has collaborated with notable coworkers, including Yi-Shao Chang and Hou-Wei Lin, contributing to various projects and advancements in their field.
Conclusion
Yi-Chang Shih's contributions to signal processing technologies through his patents and work at Realtek Semiconductor Inc. highlight his role as a key innovator in
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