Chieh-Chih Li

Title: Innovations by Chieh-Chih Li

Introduction

Chieh-Chih Li is a notable inventor based in Chia-I, Taiwan. He has made significant contributions to the field of digital systems through his innovative patents. With a total of 3 patents, his work focuses on enhancing computational efficiency.

Latest Patents

One of his latest patents is a method for finding the quotient in a digital system. This fast division method utilizes a smaller quotient digit set of {-1, 1} compared to the traditional set of {-1, 0, 1}. This innovation accelerates the speed of calculation by allowing partial remainders to be computed with signals of remainders that are decided independently and in parallel. By taking the absolute values of the remainders, the method enables successive subtraction without needing to know the signs of the remainders, while the signs can be determined in parallel. The algorithm employs a non-restoring division operation and a carry-save adder type of operation for rapid subtraction, making it simpler than existing online algorithms.

Another significant patent is an apparatus for finding the square root of a number. This method separates the sign detection operation of the remainder from the remainder subtraction operation. By taking the absolute values of the remainders, it allows for successive subtraction without knowing the signs, while the signs can be detected independently and in parallel. This method also uses a smaller square root digit set of {-1, 1}, facilitating fast conversion of results to binary representations. With the integration of specific hardware design techniques, this square root method can be realized and pipelined in simple circuits.

Career Highlights

Chieh-Chih Li is currently employed at United Microelectronics Corporation, where he continues to innovate in the field of digital systems. His work has significantly impacted the efficiency of computational processes.

Collaborations

He collaborates with Sau-Gee Chen, contributing to advancements in their field.

Conclusion

Chieh-Chih Li's innovative patents demonstrate his commitment to enhancing computational efficiency in digital systems. His contributions are valuable to the ongoing development of technology in this area.