LexDanaLexDanabeta
Inventor

Fred F. Chen

Inventor
San Francisco, CA, US

Overview

72→
Patents
2000–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 72 as inventor

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

H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication34%
H04BTransmission23%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications8%
G01RMeasuring electric variables6%
G06FElectric digital data processing5%
H04WWireless communication networks5%
Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use5%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems3%
F21KNon-electric light sources using luminescence1%
F21VFunctional features or details of lighting devices or systems thereof1%
PatentTitleYear
10,880,022Margin test methods and circuits202010,812,297Selectable-tap equalizer202010,771,295High speed signaling system with adaptive transmit pre-emphasis202010,735,116Margin test methods and circuits202010,720,832Circuits and methods for measuring the output current of a switched capacitor regulator202010,652,052Selectable-tap equalizer202010,411,923High speed signaling system with adaptive transmit pre-emphasis201910,355,888Selectabe-tap equalizer201910,205,614High-speed signaling systems with adaptable pre-emphasis and equalization201910,193,642Margin test methods and circuits201910,103,907Selectable-tap equalizer201810,003,484High-speed signaling systems with adaptable pre-emphasis and equalization20189,806,916'Selectable-tap equalizer'20179,742,602'High-speed signaling systems with adaptable pre-emphasis and equalization'20179,705,710'High speed signaling system with adaptive transmit pre-emphasis'20179,660,840'Selectable-tap equalizer'20179,553,745'High-speed signaling systems with adaptable pre-emphasis and equalization'20179,544,071'Margin test methods and circuits'20179,419,825'Selectable-tap equalizer'20169,401,646'Power converter having a synchronous rectifier'20169,318,958'On/off modulation of a switching cell-based power converter'20169,287,909'High speed signaling system with adaptive transmit pre-emphasis'20169,184,660'Very high frequency switching cell-based power converter'20159,148,322'High-speed signaling systems with adaptable pre-emphasis and equalization'20159,137,063'High-speed signaling systems with adaptable pre-emphasis and equalization'20159,116,810'Margin test methods and circuits'20159,106,397'Selectable-tap equalizer'20159,094,238'High-speed signaling systems with adaptable pre-emphasis and equalization'20159,000,803'High speed signaling system with adaptive transmit pre-emphasis'20158,994,398'High speed signaling system with adaptive transmit pre-emphasis'20158,989,249'High-speed signaling systems with adaptable pre-emphasis and equalization'20158,861,667'Clock data recovery circuit with equalizer clock calibration'20148,848,399'Very high frequency switching resonant synchronous rectification'20148,817,932'Margin test methods and circuits'20148,803,426'Modular LED lighting system'20148,654,829'Selectable-tap equalizer'20148,564,328'High speed signaling system with adaptive transmit pre-emphasis'20138,559,493'Margin test methods and circuits'20138,542,509'Multi-path power factor correction'20138,472,511'Selectable-tap equalizer'20138,467,437'Selectable-Tap Equalizer'20138,385,492'Receiver circuit architectures'20138,330,503'Equalizing transceiver with reduced parasitic capacitance'20128,319,437'Modular LED lighting system'20128,183,887'High speed signaling system with adaptive transmit pre-emphasis'20128,135,713'Sourcing controller'20128,023,584'Selectable-tap equalizer'20117,982,507'Equalizing transceiver with reduced parasitic capacitance'20117,873,115'Selectable-tap equalizer'20117,860,156'Selectable-tap equalizer'20107,672,380'Noise-tolerant signaling schemes supporting simplified timing and data recovery'20107,656,981'High speed signaling system with adaptive transmit pre-emphasis'20107,627,029'Margin test methods and circuits'20097,596,175'Methods and circuits for performing margining tests in the presence of a decision feedback equalizer'20097,508,871'Selectable-tap equalizer'20097,423,454'High speed signaling system with adaptive transmit pre-emphasis'20087,408,981'Methods and circuits for performing margining tests in the presence of a decision feedback equalizer'20087,362,800'Auto-configured equalizer'20087,348,811'Equalizing transceiver with reduced parasitic capacitance'20087,308,058'Transparent multi-mode PAM interface'20077,292,629'Selectable-tap equalizer'20077,292,637'Noise-tolerant signaling schemes supporting simplified timing and data recovery'20077,233,164'Offset cancellation in a multi-level signaling system'20077,199,615'High speed signaling system with adaptive transmit pre-emphasis and reflection cancellation'20077,177,158'Press-activated electronic component discharging facilitating apparatus'20077,126,510'Circuit calibration system and method'20067,126,378'High speed signaling system with adaptive transmit pre-emphasis'20067,030,657'High speed signaling system with adaptive transmit pre-emphasis and reflection cancellation'20066,982,587'Equalizing transceiver with reduced parasitic capacitance'2006D0508771'Display, transport, or storage device for fishing equipment'20056,652,927'Simulated christmas tree'20036,133,360'Polycarbonate resin blends containing titanium dioxide'2000

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2003–2007Based in Taipei, TW· patent location history
2006–2020Patents assigned to RAMBUS INC (59)· patent assignee history
2006–2020Based in San Francisco, CA, US· patent location history
2012–2017Patents assigned to CHEN FRED F (14)· patent assignee history
2012–2014Patents assigned to STOJANOVIC VLADIMIR M (7)· patent assignee history
2012–2014Based in Hacienda Heights, CA, US· patent location history
2013–2017Patents assigned to ZERBE JARED L (9)· patent assignee history
2013–2017Patents assigned to HO ANDREW (7)· patent assignee history
2013–2020Based in Boston, MA, US· patent location history
2015–2017Based in Cambridge, MA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RAMBUS INC592006–2020
CHEN FRED Fself142012–2017
ZERBE JARED L92013–2017
HO ANDREW72013–2017
STOJANOVIC VLADIMIR M72012–2014
Locations
LocationPatentsSpan
San Francisco, California, US462006–2020
Boston, Massachusetts, US152013–2020
Cambridge, Massachusetts, US32015–2017
Hacienda Heights, California, US22012–2014
Taipei, TW22003–2007