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Inventor

Thomas J. Frederick

Inventor
Chapel Hill, NC, US

Overview

53→
Patents
1991–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 53 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G08Bprimary
G08BSignalling systems, e.g. personal calling systems16%
H04BTransmission16%
G06KGraphical data reading12%
H04LTransmission of digital information, e.g. telegraphic communication10%
A61BDiagnosis7%
G11BInformation storage based on relative movement between record carrier and transducer5%
B25JManipulators4%
G01SRadio direction-finding4%
H03FAmplifiers3%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%
PatentTitleYear
11,115,083Direct conversion polar transmitter for an RFID reader202111,065,050Methods, systems, and devices relating to surgical end effectors202110,797,757RF system using AM with orthogonal offset202010,702,347Robotic device with compact joint design and an additional degree of freedom and related systems and methods202010,665,427RF generator for generating a modulated frequency or an inter-modulated frequency202010,603,121Methods, systems, and devices relating to robotic surgical devices, end effectors, and controllers202010,539,648RFID tag tracking using phase likelihood202010,540,526Polar transmitter using multi-phase buck converter202010,482,366Mitigating adjacent RFID reader interference201910,387,691Polar transmitter for an RFID reader201910,304,663RF generator for generating a modulated frequency or an inter-modulated frequency201910,235,616Mitigating adjacent RFID reader interference201910,230,429RF system using PR-ASK with orthogonal offset201910,219,870Single site robotic device and related systems and methods201910,205,622Waveform synthesis for RFID transmitters20199,888,966'Methods, systems, and devices relating to force control surgical systems'20189,824,309'Mitigating adjacent RFID reader interference'20179,813,115'RF system using PR-ASK with orthogonal offset'20179,743,987'Methods, systems, and devices relating to robotic surgical devices, end effectors, and controllers'20179,576,163'Passively coupled RFID receiver'20179,498,292'Single site robotic device and related systems and methods'20169,441,939'System for object detection using radio frequency reflection'20169,430,924'AC-coupled RFID system'20169,171,440'Apparatus and method for metal detection using radio frequency reflection'20158,248,212'Pipelining processes in a RF reader'20128,226,003'Adjusting parameters associated with leakage signals'20128,228,173'Interrogating radio frequency tags'20128,169,312'Determining speeds of radio frequency tags'20128,049,598'Methods and apparatus for arbitrary antenna phasing in an electronic article surveillance system'20117,873,121'Oversampling and digitally filtering RFID signals'20117,772,997'Reducing leakage noise in directly sampled radio frequency signals'20107,564,355'Adaptively transmitting a signal for activating a tag'20097,545,306'Directly sampling radio frequency signals'20097,535,338'Wireless synchronized operation of pulsed EAS systems'20097,495,565'Methods and apparatus for arbitrary antenna phasing in an electronic article surveillance system'20097,444,120'Active transmitter ringdown for switching power amplifier'20087,301,459'Closed loop transmitter control for power amplifier in an EAS system'20077,212,117'Automatic wireless synchronization of electronic article surveillance systems'20076,947,860'Electronic article surveillance system stationary tag response canceller'20056,906,629'Differentially coherent combining for electronic article surveillance systems'20056,862,719'Intelligent power pack assisted pedestal tuning for electronic article surveillance'20056,700,490'Digital detection filters for electronic article surveillance'20046,351,216'Large signal noise cancellation in electronic article surveillance'20026,347,018'Digital servo control system for use in disk drives'20025,914,829'Digital servo control system for use in disk drives, including calibrated controller for fixed-distance seeks'19995,748,086'Electronic article surveillance system with comb filtering and false alarm suppression'19985,699,045'Electronic article surveillance system with cancellation of interference signals'19975,684,650'Digital servo control system for use in disk drives'19975,680,272'Digital servo control system for use in disk drives'19975,673,024'Electronic article surveillance system with comb filtering by polyphase decomposition and nonlinear filtering of subsequences'19975,646,797'Digital servo control system for use in disk drives'19975,537,094'Method and apparatus for detecting an EAS marker using a neural network processing device'19965,060,389'Semiconductor device inspection template'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2015Patents assigned to FREDERICK THOMAS J (6)· patent assignee history
1996–2009Patents assigned to SENSORMATIC ELECTRONICS CORP (14)· patent assignee history
1996–2011Based in Coconut Creek, FL, US· patent location history
1997–2002Patents assigned to RODIME PLC (5)· patent assignee history
2009–2021Based in Chapel Hill, NC, US· patent location history
2016–2020Patents assigned to CLAIRVOYANT TECH LLC (10)· patent assignee history
2016–2021Patents assigned to UNIV NEBRASKA (7)· patent assignee history
2016–2018Based in Omaha, NE, US· patent location history
2019–2021Based in Lincoln, NE, US· patent location history
2019–2020Based in West Linn, OR, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SENSORMATIC ELECTRONICS CORP141996–2009
CLAIRVOYANT TECH LLC102016–2020
UNIV NEBRASKA72016–2021
FREDERICK THOMAS Jself61991–2015
RODIME PLC51997–2002
Locations
LocationPatentsSpan
Chapel Hill, NC, US242009–2021
Coconut Creek, Florida, US191996–2011
Lincoln, NE, US42019–2021
Omaha, NE, US32016–2018
West Linn, OR, US22019–2020