This inventor holds 3 USPTO granted patents. Top assignees: Wescom, Inc., Tone Technology Corporation. Active years: 1976-1982.
Company Filing History:
Years Active: 1976-1982
Title: The Innovations of Albert G. Nilssen
Introduction
Albert G. Nilssen is a notable inventor based in Cupertino, California. He holds three patents that showcase his contributions to telecommunications technology. His work primarily focuses on DTMF (Dual Tone Multi-Frequency) signal processing, which plays a crucial role in modern telephone systems.
Latest Patents
One of Nilssen's latest patents is the DTMF Signal Receiver. This invention includes an amplifier with automatic gain control designed to receive and amplify DTMF and audio signals. A series of bandpass and notch filters process the output from the amplifier, producing outputs in response to DTMF frequencies. The system features a detector that identifies the presence or absence of each DTMF frequency, and a DTMF decoder that generates output signals based on simultaneous detection of specific frequency pairs. Additionally, a voice guard circuit ensures that invalid DTMF signals are not detected by comparing the amplitude of the notch output with a threshold level.
Another significant patent is the Telephone Supervision System Using DTMF Signals. This system facilitates station-to-station supervision in telephone networks. It incorporates a DTMF signal generator and an audible signal generator at each subscriber station. The system generates various tones, such as dial tone and busy tone, in response to supervisory DTMF signals. Control mechanisms at each station enable the generation of specific DTMF signals based on the station's status, allowing for features like push-to-talk and conference calls.
Career Highlights
Throughout his career, Albert G. Nilssen has worked with several companies, including Wescom, Inc. and Tone Technology Corporation. His experience in these organizations has contributed to his expertise in telecommunications and signal processing.
Collaborations
Nilssen has collaborated with notable individuals in the field, including Spencer L. Hermanson and Burton R. Tunzi. Their collective efforts have advanced the development of innovative technologies in telecommunications.
Conclusion
Albert G. Nilssen's contributions to the field of telecommunications through his patents and collaborations highlight his significant role as an inventor. His work continues to influence the way we communicate today.