This inventor holds 1 USPTO granted patent. Top assignee: Tektronix, Inc.. Active years: 2003.
Company Filing History:
Years Active: 2003
Title: Innovations of Stephen P. Jachim in Signal Processing
Introduction
Stephen P. Jachim is an accomplished inventor based in Portland, OR (US). He has made significant contributions to the field of signal processing, particularly through his innovative patent related to bandpass sampling architecture. His work has implications for a wide range of applications in electronics and telecommunications.
Latest Patents
Stephen P. Jachim holds a patent for a "Bandpass sampling architecture for wide-frequency band signal analysis." This invention employs a conventional mixer driven by a frequency-tunable local oscillator (LO) to upconvert a signal frequency band to an intermediate frequency (IF) band that is above the original signal frequency band. The IF frequency band is then passed through an IF bandpass filter, which provides an IF bandpass range of signal frequency components to subsequent digitization stages. This architecture allows the IF bandpass filter to act as an anti-alias filter for the digitization stages. The LO frequency is selected to ensure that the upconverted signal frequency band falls within the pass band of the IF bandpass filter. The resultant IF bandpass signal is sampled and digitized at a rate that corresponds to the IF bandwidth, typically much lower than the IF bandpass center frequency. Signal sampling is conducted using a sample-and-hold or track-and-hold circuit, with the output directed to an analog-to-digital converter (ADC) that is clocked at the same rate as the sampling circuit. Stephen holds 1 patent.
Career Highlights
Stephen P. Jachim is currently employed at Tektronix, Inc., a leading company in the field of electronic test and measurement equipment. His role at Tektronix has allowed him to further develop his expertise in signal processing and contribute to innovative solutions in the industry.
Collaborations
Stephen has collaborated with notable colleagues, including Mihir K. Ravel and Steven H. Pepper. These collaborations have fostered a creative environment that encourages the exchange of ideas and advancements in technology.
Conclusion
Stephen P. Jachim's contributions to signal processing through his innovative patent demonstrate his expertise and commitment to advancing technology. His work continues to influence the field and inspire future innovations.