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Inventor

GAMMEL JOHN C

US11 patents
⚠️ This page may combine multiple inventors who share the name “GAMMEL JOHN C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

LEGERITY INC

4 patents
US6657496B2Dec 2, 2003

Amplifier circuit with regenerative biasing

LEGERITY INC19 citations90
US6842518B2Jan 11, 2005

Frequency-dependent impedance synthesis for DSL interface circuits

LEGERITY INC3 citations60
US6940969B2Sep 6, 2005

Capacitor cancellation method and apparatus

LEGERITY INC0 citations39
US6925178B2Aug 2, 2005

Returning ringing signals through the tip amplifier of subscriber-line interface circuitry

LEGERITY INC1 citations39

LUCENT TECHNOLOGIES INC

3 patents
US5854839ADec 29, 1998

Dual voltage, self-monitoring line circuit

LUCENT TECHNOLOGIES INC38 citations90
US5848149ADec 8, 1998

Subscriber line interface and power circuit

LUCENT TECHNOLOGIES INC22 citations88
US5974363AOct 26, 1999

Self-testing of smart line cards

LUCENT TECHNOLOGIES INC19 citations85

(unassigned)

1 patent
US5881129AMar 9, 1999

Self-monitoring line interface circuit

107 citations95

SILICON LAB INC

1 patent
US9696272B2Jul 4, 2017

Systems and methods for humidity measurement using dielectric material-based relative humidity sensors

SILICON LAB INC3 citations64

GAMMEL JOHN C

1 patent
US9927779B2Mar 27, 2018

Power sourcing equipment and method of detecting inrush fault errors

GAMMEL JOHN C1 citations44

AT & T BELL LAB

1 patent
US4573065AFeb 25, 1986

Radial high voltage switch structure

AT & T BELL LAB0 citations40