Inventor

FREDERICK THOMAS J

US43 patents

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

FREDERICK THOMAS J

SENSORMATIC ELECTRONICS CORP

Large signal noise cancellation in electronic article surveillance

Electronic article surveillance system with cancellation of interference signals

Electronic article surveillance system with comb filtering and false alarm suppression

Wireless synchronized operation of pulsed EAS systems

Differentially coherent combining for electronic article surveillance systems

Digital detection filters for electronic article surveillance

Automatic wireless synchronization of electronic article surveillance systems

Electronic article surveillance system with comb filtering by polyphase decomposition and nonlinear filtering of subsequences

Method and apparatus for detecting an EAS marker using a neural network processing device

Electronic article surveillance system stationary tag response canceller

Closed loop transmitter control for power amplifier in an EAS system

Adaptively transmitting a signal for activating a tag

Active transmitter ringdown for switching power amplifier

CLAIRVOYANT TECH LLC

Polar transmitter for an RFID reader

System for object detection using radio frequency reflection

Polar transmitter using multi-phase buck converter

RF system using PR-ASK with orthogonal offset

RF system using PR-ASK with orthogonal offset

RF system using AM with orthogonal offset

Passively coupled RFID receiver

RFID tag tracking using phase likelihood

CLAIRVOYANT TECH INC

Direct conversion polar transmitter for an RFID reader

Integrated noise-canceling RFID receiver

Suppression RFID readers for targeting zone control

RFID portal targeting

RFID antenna multiplexers

Antenna detection using RFID

FREDERICK THOMAS J

Apparatus and method for metal detection using radio frequency reflection

Pipelining processes in a RF reader

Adjusting parameters associated with leakage signals

Determining speeds of radio frequency tags

Semiconductor device inspection template

NEOLOGY INC

Mitigating adjacent RFID reader interference

Mitigating adjacent RFID reader interference

Mitigating adjacent RFID reader interference

Mitigating adjacent RFID reader interference

Mitigating adjacent RFID reader interference

SIRIT TECHNOLOGIES INC

Directly sampling radio frequency signals

Reducing leakage noise in directly sampled radio frequency signals

Oversampling and digitally filtering RFID signals

MISSIMER DAVID ROSS

Interrogating radio frequency tags

SENSOMATIC ELECTRONICS CORP

Methods and apparatus for arbitrary antenna phasing in an electronic article surveillance system

SENSORMATIC ELECTRONICS LLC

Methods and apparatus for arbitrary antenna phasing in an electronic article surveillance system