Location History:
- Quincy, MA (US) (2008 - 2009)
- Costa Mesa, CA (US) (2013 - 2018)
- Long Beach, CA (US) (2020)
Company Filing History:
17 out of 11,124 
2 out of 1,813 
1 out of 900 Years Active: 2008-2020
Title: David Patrick Murphy: Innovator in Circuit Design and Signal Processing
Introduction
David Patrick Murphy, based in Costa Mesa, California, has made significant contributions to the field of electronics, with a remarkable portfolio of 20 patents. His work primarily focuses on low-power local oscillators and advanced receiver technologies, showcasing his innovative spirit and technical expertise in circuit design and signal processing.
Latest Patents
Among his latest inventions, Murphy has developed a patent for "Low-power local oscillator generation." This circuit provides a fractional divider/multiplier using harmonic recombination and aims to reduce signal interference from the power amplifier. The design intricately includes a power amplifier, an oscillator, and a divider configured to generate multiple phases of a harmonic. Furthermore, the divider features a divide-by-M configuration, incorporating transconductance cells and optional inductors or filters to enhance functionality.
Another noteworthy patent is for a "Harmonic selective full-band capture receiver with digital harmonic rejection calibration." This innovative receiver circuitry determines local oscillator harmonics corresponding to spectrum segments of a down-converted signal, effectively amplifying them and calibrating digitized outputs based on signal leakage. This approach significantly improves the performance of received signals across different spectrum segments.
Career Highlights
David has worked with prominent companies in the technology sector, including Broadcom Corporation and Avago Technologies. His experience in these organizations has allowed him to refine his skills and apply his innovative ideas to cutting-edge technologies in the semiconductor industry, contributing significantly to advancements in communication systems.
Collaborations
Throughout his career, Murphy has collaborated with talented individuals such as Hooman Darabi and Mohyee Mikhemar. These partnerships have enabled the sharing of ideas and expertise, fostering innovative solutions and furthering advancements in their respective fields.
Conclusion
David Patrick Murphy stands out as a formidable inventor in the electronics industry, with a strong portfolio of patents and a track record of impactful work. His contributions, particularly in low-power oscillator and receiver technology, are indicative of his commitment to advancing electronic innovations that address contemporary challenges in signal processing. His ongoing work promises to shape the future of technology in meaningful ways.