Tor Øyvind Vedal

Title: Innovations by Tor Øyvind Vedal

Introduction

Tor Øyvind Vedal is a notable inventor based in Trondheim, Norway. He has made significant contributions to the field of radio frequency technology, holding a total of 3 patents. His work primarily focuses on advancements in phase-locked loops and RF transceiver testing methods.

Latest Patents

One of Vedal's latest patents is titled "Fast-locking all-digital phase-locked loop and applications thereof." This invention provides an all-digital phase-locked loop (ADPLL) designed for radio receivers, transmitters, or transceivers. The ADPLL includes a time-to-digital converter that generates a digital time signal based on an external reference clock signal and a feedback signal. It also features a switched capacitor digitally controlled oscillator (SC-DCO) that produces a radio frequency signal used as the feedback signal. The phase-locked loop controls the SC-DCO based on the digital time signal to achieve phase and frequency lock, while digital processing means maintain a lookup table defining various switching configurations of the SC-DCO corresponding to different frequencies.

Another significant patent involves "Testing RF transmitters and receivers." This patent outlines a method for testing an RF transceiver circuit, which operates in a test mode that includes both a transmitter circuit portion and a receiver circuit portion. The method entails the transmitter generating a modulated signal while the receiver processes a continuous radio frequency wave. The mixer within the receiver combines the modulated signal with a signal derived from the continuous wave to produce an output, which is then processed by the remainder of the receiver circuit.

Career Highlights

Tor Øyvind Vedal is currently employed at Nordic Semiconductor ASA, where he continues to innovate in the field of semiconductor technology. His expertise in digital signal processing and RF technology has positioned him as a key player in the industry.

Collaborations

Vedal has collaborated with notable colleagues such as Sverre Wichlund and Stein Erik Weberg, contributing to various projects that enhance the capabilities of RF technology.

Conclusion

Tor Øyvind Vedal's contributions to the field of radio frequency technology through his patents and work at Nordic Semiconductor ASA highlight his innovative spirit and dedication to advancing technology. His inventions are paving the way for future developments in the industry.