Company Filing History:
3 out of 14,087 
1 out of 70 
1 out of 1 Years Active: 1982-1986
Title: The Innovations of Robert Boudault
Introduction
Robert Boudault is a notable inventor based in Limours, France. He has made significant contributions to the field of telecommunications, particularly in modem technology. With a total of six patents to his name, Boudault's work has had a lasting impact on data transmission systems.
Latest Patents
One of Boudault's latest patents is a transmission circuit for modems employing frequency shift keying. This FSK modem transmission circuit includes a modulator that can stably produce pairs of low and high-frequency carrier waves in various combinations, adhering to international and U.S. standards. The modulator circuit features a regenerative feedback loop that generates a triangular carrier wave, with its frequency determined by a resistor network with five different settings. These settings are selected by switches controlled by the data signal and logic control signals. Additionally, the transmission circuit incorporates a filter that modifies the waveform of the transmitted carrier wave to suppress odd harmonics, effectively isolating the carrier wave from the modem receiver circuit connected via a hybrid coupler.
Another significant patent is the bit synchronization arrangement for a data modem or data receiver. In asynchronous transmission mode, this arrangement receives data signals in the form of binary pulse trains. It includes an oscillator whose output signal has a frequency approximately equal to twice the binary rate of the pulse trains. A transition detector supplies a calibrated voltage pulse at each data signal transition. The oscillator also provides a triangular internal signal at the same frequency, and a phase correction circuit is included to adjust the slope of this signal during each calibrated pulse, producing a predetermined constant phase shift.
Career Highlights
Throughout his career, Robert Boudault has worked with prominent companies such as U.S. Philips Corporation and Telecommunications Radioelectriques et Telephoniques. His experience in these organizations has contributed to his expertise in telecommunications and modem technology.
Collaborations
Boudault has collaborated with various professionals in his field, including Gerard Pouzoullic, enhancing his work through shared knowledge and expertise.
Conclusion
Robert Boudault's innovative contributions to modem technology and telecommunications have established him as a significant figure in the industry. His patents reflect a deep understanding of data transmission systems, and his collaborations have further enriched his work.