Company Filing History:
Years Active: 1992-2001
Title: Innovations of John Robert Siomkos
Introduction
John Robert Siomkos is a notable inventor based in Royal Palm Beach, FL (US). He has made significant contributions to the field of electronics, particularly in receiver technology. With a total of 4 patents to his name, Siomkos has demonstrated a commitment to innovation and advancement in his field.
Latest Patents
One of his latest patents is the Dual Channel Superheterodyne Receiver. This invention features a dual channel receiver that includes a front end bandpass filter, a first mixer, a second mixer, and two essentially identical receiver back ends. The front end bandpass filter splits a received signal into two signals of equal strength, providing out-of-band isolation between the outputs. The first mixer is coupled to the first signal and a high side injection signal, generating a first mixer output signal. Similarly, the second mixer is coupled to the second signal and a low side injection signal, producing a second mixer output signal. Each receiver back end is connected to one of the mixer output signals.
Another significant patent is the Amplifier Circuit. This circuit utilizes a series transistor to couple the output of an amplifier to a tuned circuit load, acting as a variable resistance. In a multi-band receiver embodiment, multiple series transistors are switched to connect different tuned circuits to the amplifier's output. An activated series transistor receives a gate voltage that varies its resistance to achieve gain control, while also providing stabilization for the amplifier.
Career Highlights
John Robert Siomkos has had a distinguished career at Motorola Corporation, where he has been instrumental in developing innovative electronic solutions. His work has contributed to advancements in communication technology, enhancing the performance and efficiency of various devices.
Collaborations
Throughout his career, Siomkos has collaborated with notable colleagues, including Edgar Herbert Callaway, Jr. and Curtis M Griffin. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
John Robert Siomkos is a prominent inventor whose work at Motorola Corporation has significantly impacted the field of electronics. His innovative patents, including the Dual Channel Superheterodyne Receiver and the Amplifier Circuit, showcase his expertise and dedication to advancing technology.