Chang-Shun Liu

Title: Chang-Shun Liu: Innovator in Analog-to-Digital Conversion Technologies

Introduction

Chang-Shun Liu is a prominent inventor based in Taipei, Taiwan. He has made significant contributions to the field of analog-to-digital conversion, holding a total of 11 patents. His work has advanced the technology used in various electronic devices, enhancing their performance and efficiency.

Latest Patents

Among his latest patents is the "Delta-sigma analog-to-digital conversion apparatus and method thereof." This invention involves a delta-sigma analog-to-digital conversion apparatus designed to receive an analog input signal and generate a digital output signal. The apparatus includes a subtracting unit, a quantizer, and a feedback unit. The subtracting unit performs a subtraction function to generate a subtracted signal based on the analog input signal and a feedback signal. The quantizer then performs quantization to produce a quantized signal from the subtracted signal. The feedback unit provides the necessary feedback signal to the subtracting unit, effectively reducing the signal input swing of the quantizer.

Another notable patent is the "Element-selecting method capable of reducing toggle rate of digital to analog converter and module thereof." This method is utilized for selecting the converting elements of a digital-to-analog converter (DAC) to enhance its performance. The method first checks if the selected times of the converting elements are equal. If they are, it determines a shifting-step based on the input signal and the number of converting elements. If not, a predetermined value is used. This innovative approach helps eliminate errors caused by mismatched converting elements, thereby reducing the toggle rate and improving the overall performance of the DAC.

Career Highlights

Chang-Shun Liu has worked with notable companies such as Realtek Semiconductor Inc. and MediaTek Corporation. His experience in these organizations has allowed him to apply his innovative ideas and contribute to the development of cutting-edge technologies in the semiconductor industry.

Collaborations

Some of his coworkers include Tse-Chi Lin and Yu-Hsuan Tu. Their collaboration has likely fostered an environment of innovation and creativity, leading to advancements in their respective fields.

Conclusion

Chang-Shun Liu's contributions to analog-to-digital conversion technologies have made a significant impact on the electronics industry. His innovative patents and career achievements reflect his dedication to advancing technology and improving device performance.