Company Filing History:
Years Active: 1984
Title: The Innovations of Du Phan Tich
Introduction
Du Phan Tich is a notable inventor based in Colombes, France. He has made significant contributions to the field of telecommunications, particularly with his innovative designs that enhance communication technology. His work has led to the development of a unique patent that addresses specific challenges in telephone communication.
Latest Patents
Du Phan Tich holds a patent for a Speech-amplifier telephone station. This invention features a first attenuator inserted in a transmission channel and a second attenuator in a reception channel. Each attenuator is equipped with a variable impedance mounted in shunt on the corresponding channel. A circuit controls the attenuators based on the relative levels of signals collected from both channels. The design includes a bridge circuit that introduces a difference between the levels of the signals from the two channels. This bridge circuit consists of a resistor bridge formed by two fixed resistors in each channel, along with a variable impedance that serves as the attenuator. The common node of the two fixed resistors is the point of signal collection from each channel. This innovative approach enhances the clarity and quality of telephone communications.
Career Highlights
Du Phan Tich has worked with Thomson-CSF Telephone, a prominent company in the telecommunications sector. His role at the company has allowed him to apply his inventive skills and contribute to advancements in communication technology. His patent reflects his commitment to improving the functionality and efficiency of telephone systems.
Collaborations
Throughout his career, Du Phan Tich has collaborated with notable colleagues, including Andre Chataignon and Jean-Pierre Poirier. These collaborations have fostered an environment of innovation and creativity, leading to significant advancements in their respective fields.
Conclusion
Du Phan Tich's contributions to telecommunications through his patent for a Speech-amplifier telephone station exemplify his innovative spirit and dedication to enhancing communication technology. His work continues to influence the industry and inspire future inventors.