Peter J Doherty

Title: The Innovations of Peter J Doherty

Introduction

Peter J Doherty is a notable inventor based in Apex, NC (US), recognized for his contributions to amplifier efficiency and power control in wireless communications. With a total of 3 patents, his work has significantly impacted the field of telecommunications.

Latest Patents

One of his latest patents is titled "Method and apparatus for attaining higher amplifier efficiencies at lower power levels." This invention relates to a method and apparatus designed to provide a radio frequency output that promotes higher amplifier efficiencies. In one embodiment, the apparatus includes a driver and a switch that alternately connects first and second circuit paths to the driver and an antenna. A power amplifier with a first bias lead lies in the second circuit path. When low power is required, the switch connects the first circuit path to the antenna and disconnects the first bias lead from a bias. Conversely, when high power is needed, the switch disconnects the first circuit path from the antenna and connects the second circuit path and the first bias lead to the antenna and the bias, respectively.

Another significant patent is "Power control for wireless communications system." This invention involves power control circuitry for the transmitting section of a mobile terminal, providing gain control for amplifiers operating at different frequencies. One amplifier controls the signal gain in the signal transmission path in the IF section, while another amplifier manages gain in the RF section. The gain control signal based on received signal strength is analog-based, while the control signal from the control system is a pure digital signal, making it substantially immune to noise.

Career Highlights

Peter J Doherty is currently employed at Ericsson GmbH, where he continues to innovate in the field of telecommunications. His work has been instrumental in advancing technologies that enhance communication systems.

Collaborations

Throughout his career, Peter has collaborated with notable colleagues, including Ronald D Boesch and Darrell G Epperson. These collaborations have contributed to the development of cutting-edge technologies in the industry.

Conclusion

Peter J Doherty's contributions to amplifier efficiency and power control in wireless communications demonstrate his significant impact on the field. His innovative patents and collaborations highlight his dedication to advancing technology in telecommunications.