Company Filing History:
Years Active: 1998
Title: Howard Graeme Roberts: Innovator in Radio Technology
Introduction
Howard Graeme Roberts is a notable inventor based in Ilford, GB. He has made significant contributions to the field of radio technology, particularly in the design of tuners for radio receivers. His innovative approach has led to the development of a unique patent that enhances the functionality of varactor-tuned local oscillators.
Latest Patents
Roberts holds a patent for "Converting capacitance to inductance in a floating resonant." This invention features an improved tuner for a varactor-tuned local oscillator in a radio receiver. The design includes a winding of a pair of magnetically coupled inductors, constructed in the form of a transformer. The first and second windings are magnetically coupled with reduced inter-winding capacitance by axially separating the windings on a common core. The second winding is selectively coupled by a switch to a capacitive load, allowing for changes in the inductance of the first winding. This innovative tuning mechanism alters the tuning range of the resonant circuit formed by the varactor diode set and the first winding when the capacitive load is engaged. The magnetic coupling between the transformer windings also provides DC isolation between the oscillator and the switching circuit. Additionally, a tuning actuator is incorporated, featuring overlapping ranges of movement for selecting signals within both the AM and FM frequency bands.
Career Highlights
Howard Graeme Roberts is currently employed at Ford Motor Company Limited, where he applies his expertise in radio technology. His work has contributed to advancements in automotive communication systems, enhancing the overall functionality and performance of vehicles.
Collaborations
Roberts has collaborated with notable colleagues, including Yao H Kuo and Edmund Joe Tillo. Their combined efforts have fostered innovation and development in their respective fields.
Conclusion
Howard Graeme Roberts is a distinguished inventor whose work in radio technology has led to significant advancements in tuner design. His patent showcases his innovative thinking and dedication to improving communication systems. His contributions continue to influence the industry and inspire future innovations.