Robert A Marsland, Jr

Title: The Innovations of Robert A Marsland, Jr.

Introduction

Robert A Marsland, Jr. is a notable inventor based in Madison, WI (US), recognized for his contributions to the field of test and measurement systems. With a total of 11 patents to his name, Marsland has made significant advancements in technology that enhance the accuracy and efficiency of various measurement processes.

Latest Patents

One of his latest patents is focused on the determination of constellation impairment parameters via error-vector magnitude minimization. This innovative test and measurement system includes a data store that holds a description of a received in-phase (I) quadrature (Q) symbol. The system is designed to analyze impairments associated with the received IQ symbol, which is modified from an ideal IQ symbol due to these impairments. A computer processor generates an Error-Vector Magnitude (EVM) function that quantifies the differences between the received and ideal IQ symbols. By minimizing the EVM function, the processor determines values for the impairment parameters, providing a comprehensive understanding of the impairments involved.

Another significant patent involves an apparatus that enables the use of a reference diode to compare against a device under test in relative amplitude and phase measurements. This invention includes methods and devices for determining a phase angle offset between a local oscillator and a signal input of a Device Under Test (DUT). Some embodiments utilize a laser source and an optical phase adjustor, which can be a loop stretcher that controllably stretches a length of fiber optic cable. This innovation allows for precise phase angle offset information to be conveyed to an oscilloscope for internal compensation.

Career Highlights

Throughout his career, Robert A Marsland, Jr. has worked with prominent companies such as Tektronix, Inc. and New Focus, Inc. His experience in these organizations has contributed to his expertise in developing advanced measurement technologies.

Collaborations

Marsland has collaborated with notable individuals in the field, including Robert Sylvester Williamson, III and Steven Alan Jacobs. These partnerships have likely fostered innovative ideas and advancements in their respective projects.

Conclusion

Robert A Marsland, Jr. stands out as a significant figure in the realm of inventions, particularly in the area of test and measurement systems. His contributions through his patents reflect a commitment to enhancing technology and improving measurement accuracy.