Chien Kuang Chen

Title: Innovations of Chien Kuang Chen

Introduction

Chien Kuang Chen is a notable inventor based in San Jose, CA. He has made significant contributions to the field of electronics, particularly in the development of innovative circuits. With a total of 3 patents to his name, Chen continues to push the boundaries of technology.

Latest Patents

One of his latest patents is the "In-system margin measurement circuit." This margin circuit is designed to control skew between first and second signals to determine margin. It includes a variable delay circuit and a margin controller. The delay circuit applies a delay to the second signal based on a current code value, generating a delayed second signal. The margin controller generates the current code value for the variable delay circuit from a range of available code values. In one embodiment, this margin circuit functions as a write margin circuit, producing a first clock signal and a delayed second clock signal. These signals are used to generate transmit (TX) clock and data signals with a non-zero phase offset. In another embodiment, it operates as a read margin circuit, applying a phase offset between receive (RX) clock and data signals to facilitate data recovery from the RX data signal.

Another significant patent is the "Low-power configurable delay element." This invention features a configurable delay element with three stages. The first stage consists of an 8-buffer first delay chain and a (8×1) first multiplexer that selects one of the eight outputs. The second stage includes a 24-buffer second delay chain organized into three 8-buffer sub-chains, along with a (4×1) second multiplexer. The third stage has a 96-buffer third delay chain, also organized into three 32-buffer sub-chains, and a (4×1) third multiplexer that selects one of the four outputs as the delay-element output signal. A delay-element controller ensures glitch-less updates to the signal controlling the delay-element multiplexers, timing these updates to occur when all buffers share the same state.

Career Highlights

Chien Kuang Chen is currently employed at Lattice Semiconductor Corporation, where he applies his expertise in circuit design and innovation. His work has significantly impacted the company's technological advancements.

Collaborations

Chen collaborates with talented coworkers, including Fulong Zhang and Zheng Chen, contributing to a dynamic and innovative work environment.

Conclusion