Daniel N. Harres

ULTRASONIC RANGING SENSORS

Optical airflow sensor

Phase lock loop for optical wireless network

Auxiliary network for fiber optic system health management

Apparatus and methods for noise-feedback controlled optical systems

Optical wireless sensor network

Mixer-based time domain reflectometer and method

Built-in test for high-speed electrical networks

Remote sensor network powered inductively from data lines

Programmable high-resolution phase delay

Optical phase domain reflectometer

Power diagnostic system and method

Built-in test for high speed electrical networks

Bi-directional, full-duplex, one-wire communications link for use in fiber optic transceivers

System, decoder and method for transmitting, receiving and decoding high-speed digital data signals with reduced electromagnetic emissions

Lensed bidirectional, co-located laser/detector

Mixer-based time domain reflectometer and method

Method for determining fiber optic fault location

System having a spread-spectrum clock for further suppression of electromagnetic emissions in network devices communicating via a network bus

Mixer-based in-service time domain reflectometer apparatus and methods

Bidirectional, co-located laser and detector

Apparatus and methods for capacitively-coupled device input/output

Optical time domain reflectometer and method of using the same

Built-in test signal attenuation circuit

RF photonics residual error correction

Method for audibly measuring optical efficiency in an installed fiber optic link

Apparatus and method for fiber optic link with built-in test