Inventor

FEDIGAN STEPHEN JOHN

US35 patents

⚠️ This page may combine multiple inventors who share the name “FEDIGAN STEPHEN JOHN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

FEDIGAN STEPHEN JOHN

TEXAS INSTRUMENTS INC

Apparatus and method for monitoring speaker cone displacement in an audio speaker

Lens cleaning via electrowetting

Transducer temperature sensing

Methods and apparatus for ultrasonic lens cleaner using configurable filter banks

Modulated transistor gate driver with planar pulse transformer

Control system for a sensor assembly

Ultrasonic lens cleaning system with impedance monitoring to detect faults or degradation

Methods and apparatus using multistage ultrasonic lens cleaning for improved water removal

Method and apparatus for multiphase inverter control

Lens cleaning via electrowetting

Transducer temperature sensing

Ultrasonic lens cleaning system with foreign material detection

Ultrasound lens structure cleaner architecture and method using standing and traveling waves

Methods and apparatus for surface wetting control

Motor winding fault detection circuits and methods to detect motor winding faults

Ultrasound lens structure cleaner architecture and method

Linear hall device based field oriented control motor drive system

Method and apparatus for tilt sensing using eccentric motor

Motor winding fault detection circuits and methods to detect motor winding faults

Ultrasonic lens cleaning with travelling wave excitation

Linear hall device based field oriented control motor drive system

Multi-frequency reduction of fluid droplet

Methods and apparatus for surface wetting control

Methods and apparatus for electrostatic control of expelled material for lens cleaners

Ultrasound lens structure cleaner architecture and method using standing and traveling waves

Ultrasound lens structure cleaner architecture and method

Optical device housing

Transducer-induced heating and cleaning

Optical device housing

Motor fault detector

Transducer-induced heating-facilitated cleaning

Optical device housing

Detection of an inter-turn winding fault in a motor

Travelling wave motor pre-driver using high resolution PWM generators

RAYTHEON CO

Power management unit architecture