John E Turner

Title: John E Turner: Innovator in Programmable Logic Devices

Introduction

John E Turner is a prominent inventor based in Beaverton, Oregon, known for his significant contributions to the field of programmable logic devices. With a total of eight patents to his name, Turner has made remarkable advancements that enhance the functionality and security of these devices.

Latest Patents

Turner's latest patents include a "Programmable Logic Device Configurable Input/Output Cell." This invention describes an in-system programmable logic device that can be configured or reconfigured while installed in a user's system. The device utilizes non-volatile memory cells, such as floating gate transistors, allowing it to retain its programmed logic configuration even during a powered-down state. The device operates in both normal and utility states, controlled by an internal state machine that executes various state equations. Additionally, a voltage multiplier circuit is included to generate the high voltage necessary for programming the memory cells, optimizing the number of device pins required.

Another notable patent is the "One-Time Programmable Data Security System for Programmable Logic Device." This invention introduces a data security fuse system that allows for one-time programmability of protected data cells in a reprogrammable logic device. The system includes a fuse enable circuit that can only be erased prior to the device's packaging during manufacture. This ensures that the protected data cells can be programmed only once after activation, thereby preventing unauthorized access.

Career Highlights

John E Turner is currently employed at Lattice Semiconductor Corporation, where he continues to innovate in the field of programmable logic devices. His work has significantly impacted the design and functionality of these devices, making them more versatile and secure.

Collaborations

Throughout his career, Turner has collaborated with notable colleagues, including David Lee Rutledge and Roy D Darling. These collaborations have contributed to the development of advanced technologies in the semiconductor industry.

Conclusion

John E Turner is a distinguished inventor whose work in programmable logic devices has paved the way for enhanced functionality and security in electronic systems. His contributions continue to influence the industry and inspire future innovations.