Douglas Scott Shelton

Title: Innovations by Douglas Scott Shelton

Introduction

Douglas Scott Shelton is an accomplished inventor based in Kingsville, MD (US). He has made significant contributions to the field of clock recovery and data serialization through his innovative patents. With a total of 3 patents, Shelton's work has advanced the technology used in high-speed serial interfaces.

Latest Patents

Shelton's latest patents include "Efficient phase encoding for clock recovery" and "Handling phase interpolator integral non-linearity errors based on phase error measurements." The first patent describes a phase interpolator that generates eight output clock signals phase-offset by 45 degrees from four input clock signals. This design utilizes primary and secondary mixers to adjust phase values, employing a mixed thermometer-binary encoding scheme to reduce routing complexity while ensuring monotonic phase progression. The second patent addresses the handling of integral non-linearity errors in phase interpolators, providing a system that measures and corrects these errors to enhance clock data recovery within circuits like serializer/deserializer (SerDes) systems.

Career Highlights

Douglas Scott Shelton is currently employed at Cadence Design Systems, Inc., where he continues to innovate in the field of electronic design automation. His expertise in phase interpolation and clock recovery has positioned him as a key contributor to advancements in high-speed data communication technologies.

Collaborations

Shelton collaborates with Kelvin E McCollough, working together to push the boundaries of technology in their field. Their partnership exemplifies the importance of teamwork in driving innovation.

Conclusion

Douglas Scott Shelton's contributions to the field of clock recovery and data serialization through his patents reflect his dedication to innovation. His work continues to influence the development of high-speed serial interfaces, showcasing the impact of his inventions on modern technology.