This inventor holds 4 USPTO granted patents. Top assignee: U.S. Philips Corporation. Active years: 1989-2001.
Company Filing History:
Years Active: 1989-2001
Title: John D Speake: Innovator in Radio Receiver Technology
Introduction
John D Speake is a notable inventor based in Cambridge, GB. He has made significant contributions to the field of radio receiver technology, holding a total of 4 patents. His work has been instrumental in advancing communication systems, particularly in selective call systems.
Latest Patents
Among his latest patents is a gain controlled radio receiver designed for selective call systems. This innovative receiver includes a multi-step gain controlled RF amplifier that receives input signals and features a measuring circuit for assessing the level of a wanted frequency down-converted signal. The design incorporates multiple gain stages, allowing for enhanced signal amplification and processing. Another notable patent is a receiver circuit that utilizes a direct conversion IF stage, which is separated from the antenna by a frequency conversion stage. This design improves the efficiency and performance of radio receivers.
Career Highlights
John D Speake has had a distinguished career, working with U.S. Philips Corporation, where he has contributed to various projects and innovations in radio technology. His expertise in gain controlled amplifiers and receiver circuits has positioned him as a key figure in the industry.
Collaborations
Throughout his career, John has collaborated with various professionals, including his coworker Anthony H Richards. These collaborations have fostered innovation and have led to the development of advanced technologies in the field.
Conclusion
John D Speake's contributions to radio receiver technology have had a lasting impact on communication systems. His innovative patents and collaborative efforts continue to influence the industry today.