Company Filing History:
Years Active: 1998
Title: The Innovations of Marie E. Andrus
Introduction
Marie E. Andrus is a notable inventor based in Los Gatos, California. She has made significant contributions to the field of power line communications. With one patent to her name, her work exemplifies innovation and technical expertise.
Latest Patents
Marie E. Andrus holds a patent for a Power Line Communications Analyzer (PLCA). This device provides a signal strength metering system and selectable signal attenuation functions. It allows for the adjustment of the transmitting unit's attenuation and the measurement of error rates without requiring user presence at both sending and receiving locations. Each PLCA connects to a power line communication network via an electrical outlet and power lines. In operation, one PLCA serves as a data transmitter while the other acts as a data receiver. The PLCA's mode of operation can be dynamically altered during system operation. It includes control logic that receives command inputs from a keypad, generates data packets for transmission, analyzes received data packets, detects power line signals and noise levels, and displays packet transmission information on an LCD display.
Career Highlights
Marie E. Andrus has worked at Echelon Corporation, where she has contributed to advancements in power line communication technologies. Her innovative approach has helped enhance the efficiency and reliability of communication systems.
Collaborations
Some of her coworkers include J. Marcus Stewart and Glen Meyers Riley. Their collaboration has likely fostered an environment of creativity and innovation within the company.
Conclusion
Marie E. Andrus is a pioneering inventor whose work in power line communications has made a lasting impact. Her contributions continue to influence the field and inspire future innovations.