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Search Patents by William C. Swann

Patents listed here reflect only technologies patented from FY 2018-present. To view all of NIST's patented technologies, visit the NIST pages on the Federal Laboratory Consortium website.

Displaying 1 - 3 of 3

Synchronizer And Synchronizing Transfer Over An Optical Link

NIST Inventors
Laura Sinclair , William C. Swann and JD Deschenes
A synchronizer for synchronizing transfer over an optical link includes a frequency reference oscillator; a tracking optical timing source; a tracking comb signal; a signal processor-controller; a comb timing discriminator; a clock frequency comb; a bidirectional terminal; a time-frequency offset
Powerpoint slide, showing via map and photograhpy, the distance from NIST Boulder to Valmont Butte

Optical Time Distributor and Process for Optical Two-Way Time-Frequency Transfer

NIST Inventors
Laura Sinclair , William C. Swann and JD Deschenes
The invention is a method to compare and synchronize "clocks" (i.e., local timescales) through optical links across free space, which include open-air paths through the atmosphere to other terrestrial sites or to satellites, as well as satellite-to-satellite paths. The challenge is to compare the

Next-Gen Laser Radar (LIDAR) for High-Accuracy Applications

NIST Inventors
Ian Coddington and William C. Swann
This invention is a new kind of laser radar (LIDAR) that uses two special lasers called femtosecond fiber lasers. One laser sends out a signal, and the other helps detect the signal that bounces back from a target. It combines two types of measurements—time-of-flight and interferometry—to measure
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