Company Filing History:
Years Active: 2000
Title: D James Chapman: Innovator in Programmable Phase Shifting Technology
Introduction
D James Chapman is a notable inventor based in Lake Oswego, OR (US). He has made significant contributions to the field of programmable phase shifting technology. His innovative work has led to the development of a unique patent that enhances signal processing capabilities.
Latest Patents
D James Chapman holds a patent for a "Calibratable Programmable Phase Shifter." This invention features a programmable phase shifter that includes a tapped delay line for successively delaying a periodic reference signal. The design produces a set of phase-distributed tap signals. A multiplexer selects one of the tap signals as input to a programmable delay circuit, which further delays the selected tap signal. This process results in an output signal that is phase-shifted from the reference signal. Additionally, a programmable data converter translates input data indicating a desired phase shift into control data for the multiplexer and the programmable delay circuit. The relationship between the conversion table input and output data is adjusted to ensure that the output signal's period has a desired linear relationship to the input data value. D James Chapman has 1 patent to his name.
Career Highlights
D James Chapman is associated with Credence Systems Corporation, where he has contributed to advancements in technology. His work has been instrumental in developing innovative solutions that address complex challenges in signal processing.
Collaborations
D James Chapman collaborates with Jeffrey D Currin, working together to push the boundaries of technology and innovation in their field.
Conclusion
D James Chapman is a distinguished inventor whose work in programmable phase shifting technology has made a significant impact. His contributions continue to influence advancements in signal processing and related fields.