Shing Chou Pi

Title: Shing Chou Pi: Innovator in Logic Arrays and Memory Technology

Introduction

Shing Chou Pi is a notable inventor based in Kingston, NY (US). He has made significant contributions to the field of programmable logic and memory technology. With a total of 2 patents, his work has had a lasting impact on the industry.

Latest Patents

One of his latest patents is for a "Time Shared Programmable Logic Array." This invention describes arrays designed for performing logic functions. In these arrays, input variables are placed on a series of parallel input lines that intersect with parallel output lines in a grid of intersections. Field effect devices at these intersections have their gate terminals connected to one of the input lines, while their source terminals connect to one of the output lines through a load device to a source of potential. The drain terminals of these devices can be unconnected, connected directly to ground, or connected to ground through one of two switching devices. The devices with unconnected drains are inoperative, while those connected directly to ground are operative at all times. The array can be time-shared by two different logic functions by having one or the other of the switches off at any given time.

Another significant patent is for "Self-Sequencing Memory." This self-sequenced read-only memory features dynamic logic circuits that energize the next word line after a fixed time delay. Self-sequencing inverters are placed within the array area, enhancing reliability and reducing circuit wiring. When used as microprogram control storage, the memory is divided into multiple self-sequenced control routines. Once a control routine is energized, sequential microinstructions are automatically fetched, including branch and branch-on condition instructions. The self-sequencing of the memory allows for simultaneous access to memory words while fetching operations continue.

Career Highlights

Shing Chou Pi is currently employed at International Business Machines Corporation (IBM). His work at IBM has allowed him to develop innovative technologies that have advanced the field of programmable logic and memory systems.

Collaborations

Some of his notable coworkers include Gerald Bernard Long and Ralph C Mitchell. Their collaboration has contributed to the success of various projects within the company.

Conclusion

Shing Chou Pi is a distinguished inventor whose work in programmable logic arrays and memory technology has made a significant impact on the industry. His innovative patents continue to influence advancements