Derrick Andrew Leach

Title: Derrick Andrew Leach: Innovator in Memory Technology

Introduction

Derrick Andrew Leach is a notable inventor based in Austin, TX, recognized for his contributions to memory technology. With a total of two patents to his name, Leach has made significant advancements in the field of electronic circuits and memory systems.

Latest Patents

Leach's latest patents include a "Scannable Flip-Flop with Hold Time Improvements" and a "Synchronous Pipelined Burst Memory and Method for Operating Same." The scannable flip-flop patent discloses embodiments that may reduce data hold time, thereby enhancing the performance of circuits that incorporate this innovative design. This flip-flop features a slave latch and a master latch, which includes an input multiplexer capable of receiving both normal operating mode data and scan operating mode data. The multiplexer is designed to select one of the input ports based on control signals derived from the clock signal and a select signal.

The synchronous pipelined burst memory patent achieves high speed by deviating from conventional pipelining rules. This memory system includes an address register that latches a burst address during the first cycle of a periodic clock signal. The output data from the asynchronous memory core is not latched until a third cycle of the clock signal, which occurs after the second cycle. This innovative approach allows the memory to output successive data elements of the burst during consecutive cycles, completing the burst cycle efficiently.