This inventor holds 2 USPTO granted patents. Top assignee: Hayes Microcomputer Products, Inc.. Active years: 1989-1990.
Company Filing History:
Years Active: 1989-1990
Title: Innovations of John N Martin
Introduction
John N Martin is a notable inventor based in Atlanta, GA (US). He has made significant contributions to the field of modem technology, holding a total of 2 patents. His work has focused on improving communication systems, particularly in the realm of data transmission.
Latest Patents
One of Martin's latest patents is the "High speed half duplex modem with fast turnaround protocol." This modem features enhanced signal processing and handshaking capabilities. It utilizes two digital signal processors to perform independent, concurrent operations, resulting in a faster execution rate and more precise calculations. The modem maintains compatibility with existing 1200 and 2400 bps modems while allowing for negotiation for 4800 and 9600 bps communications. Additionally, it incorporates an improved baud clock recovery circuit that dynamically adjusts the actual sampling point, minimizing jitter around the optimal sampling point.
Another significant patent is the "Autocorrelating 2400 bps handshake sequence detector." This invention improves the V.22 bis 2400 bits per second handshake sequence detection. It employs an autocorrelation technique using a frequency shift keyed receiver. The autocorrelated signal is filtered by a low pass filter and alternately fed to two detectors, each looking for a portion of the handshake sequence. The handshake sequence is declared detected when either detector identifies its corresponding part of the sequence.
Career Highlights
John N Martin is currently employed at Hayes Microcomputer Products, Inc. His work at this company has allowed him to develop innovative technologies that enhance modem performance and reliability. His contributions have been instrumental in advancing communication technology.
Collaborations
Some of Martin's coworkers include Taruna Tjahjadi and German E Correa. Their collaboration has likely contributed to the successful development of various projects within the company.
Conclusion
John N Martin's innovations in modem technology have significantly impacted the field of data communication. His patents reflect a commitment to enhancing the efficiency and reliability of communication systems.