Robert Schell

Title: Robert Schell: Innovator in Offset Cancellation and Phasing Detection

Introduction

Robert Schell is a notable inventor based in Chatham, NJ (US). He has made significant contributions to the field of electronics, particularly in optimizing offset compensation and phasing detection systems. With a total of 7 patents to his name, Schell's work has had a considerable impact on the industry.

Latest Patents

One of his latest patents is titled "Nested feedback for offset cancellation in a wireline receiver." This invention provides systems and methods for optimizing offset compensation in a receiver that utilizes multiple offset compensation D/A converters. The design includes a fan-out of two or more at each stage where offset cancellation is applied. At the final stage, the comparator offset compensation codes are summed and compared against a digital reference, which can either be zero or a non-zero value based on stored comparator offsets. The difference between the summed offsets and the digital reference is applied to a digital accumulator, which helps cancel analog offsets in intermediate amplifier stages.

Another significant patent is "Phasing detection of asynchronous dividers." This invention outlines apparatus and methods for detecting phase differences in asynchronous dividers. The clock and data recovery system includes two dividers that output divided clock signals, along with an asynchronous clock phasing detection circuit. This circuit generates a detection signal that indicates the relative phase difference between the two divided clock signals, enhancing the reliability of clock synchronization in electronic systems.

Career Highlights

Robert Schell is currently employed at Analog Devices, Inc., where he continues to innovate and develop advanced electronic solutions. His expertise in offset cancellation and phasing detection has positioned him as a key contributor in his field.

Collaborations

Throughout his career, Schell has collaborated with notable colleagues, including John G Kenney and Robert D Bishop. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Robert Schell's contributions to the field of electronics through his patents and collaborative efforts highlight his role as a significant inventor. His work in offset cancellation and phasing detection continues to influence advancements in technology.