This inventor holds 3 USPTO granted patents. Top assignee: Bell Telephone Laboratories. Active years: 1977-1979.
Company Filing History:
Years Active: 1977-1979
Title: Mark Thomas Manfred: Innovator in Telephone Technology
Introduction
Mark Thomas Manfred is a notable inventor based in Rockaway, NJ (US). He has made significant contributions to the field of telecommunications, particularly in the development of innovative detection circuits for telephone systems. With a total of 3 patents to his name, Manfred's work has had a lasting impact on the industry.
Latest Patents
One of Manfred's latest patents is the Dual Mode Telephone Subscriber Loop Current Detector. This invention features a detector circuit designed to identify off-hook and dial pulse signals within a telephone system. Under the control of a ringing relay, the circuit reconfigures itself to provide ring-trip detection. The detection circuit includes a bridge that responds to circulating loop currents while remaining unresponsive to longitudinally balanced currents. Additionally, it incorporates a two-stage voltage level detector circuit. An RC timing circuit is included between the two stages to ensure that the detector does not respond to short-duration pulses. Once energized, it can bridge over short-duration interruptions of detected pulses.
Career Highlights
Mark Thomas Manfred has had a distinguished career at Bell Telephone Laboratories, where he has been instrumental in advancing telephone technology. His innovative approach and technical expertise have led to the development of key inventions that enhance communication systems.
Collaborations
Throughout his career, Manfred has collaborated with notable colleagues, including Richard J. Lisco and Stephen Joseph Brolin. These partnerships have fostered a creative environment that has contributed to the success of their projects.
Conclusion
Mark Thomas Manfred is a prominent figure in the field of telecommunications, known for his innovative inventions and contributions to telephone technology. His work continues to influence the industry and improve communication systems.