Laurens Doornhein

Title: Laurens Doornhein: Innovator in Television and Oscillator Technology

Introduction

Laurens Doornhein is a prominent inventor based in Eindhoven, Netherlands. He has made significant contributions to the fields of television technology and integrated circuits. With a total of 7 patents to his name, Doornhein's work has had a lasting impact on the industry.

Latest Patents

One of his latest patents is titled "Television signal comprising additional data." This invention involves a television signal that includes a video signal with luminance information and a signaling bit stream. The signaling bit stream conveys static control information bits, such as the aspect ratio of the video signal. Notably, a plurality of bits from an additional data signal is distributed over at least one bit of the signaling bit stream per frame, enhancing the overall functionality of the television signal.

Another significant patent is the "Digital phase-locked loop." This integrated circuit features a time-discrete oscillator that generates numerical and time-discrete phase values of an oscillator signal. It also includes a time-continuous oscillator that produces a time-continuous oscillation signal. A phasemeter samples phase values from the time-continuous oscillator, and a comparator circuit measures the difference between generated and sampled phase values. This difference is utilized in a phase-locked loop to readjust the frequency of the time-continuous oscillator, ensuring high operational reproducibility and minimal jitter during phase locking.

Career Highlights

Laurens Doornhein is associated with U.S. Philips Corporation, where he has been instrumental in advancing technology in his field. His innovative work has contributed to the development of cutting-edge products and solutions.

Collaborations

Throughout his career, Doornhein has collaborated with notable colleagues, including Jeroen M Kettenis and Marcellinus J Annegarn. These collaborations have further enriched his contributions to technology and innovation.

Conclusion

Laurens Doornhein's inventive spirit and technical expertise have led to significant advancements in television and oscillator technology. His patents reflect a commitment to innovation that continues to influence the industry today.