Inventor · Los Altos Hills, CA, US

Sergey Shumarayev

207Patents
20h-index
88Co-inventors
93Inventor score

Filing activity: Jan 20, 1999 → Sep 24, 2018

Most-cited inventions

PatentTitleAreaCited byStatus
US7996749B2 Signal loss detector for high-speed serial interface of a programmable logic device Electricity 409 Active
US6407576B1 Interconnection and input/output resources for programmable logic integrated circuit devices Electricity 147 Expired
US6323680A Programmable logic device configured to accommodate multiplication Physics 105 Expired
US6480027B1 Driver circuitry for programmable logic devices Electricity 53 Expired
US6281704A High-performance interconnect Electricity 48 Expired
US6943588B1 Dynamically-adjustable differential output drivers Electricity 36 Expired
US6812734B1 Programmable termination with DC voltage level control Electricity 33 Expired
US6940302B1 Integrated circuit output driver circuitry with programmable preemphasis Electricity 33 Expired
US8744012B1 On-chip eye viewer architecture for highspeed transceivers Physics 31 Active
US7109744B1 Programmable termination with DC voltage level control Electricity 29 Expired
US8537886B1 Reconfigurable equalization architecture for high-speed receivers Electricity 29 Active
US8335249B1 Receiver equalizer circuitry with offset voltage compensation for use on integrated circuits Electricity 28 Active
US6888370B1 Dynamically adjustable termination impedance control techniques Electricity 28 Expired
US7791370B1 Clock distribution techniques for channels Physics 26 Active
US7821343B1 Transmitter with multiple phase locked loops Electricity 23 Active
US7782935B1 Half-rate DFE with duplicate path for high data-rate operation Electricity 22 Active
US8750406B2 Multi-level amplitude signaling receiver Electricity 22 Active
US7321259B1 Programmable logic enabled dynamic offset cancellation Electricity 21 Expired
US7149914B1 Clock data recovery circuitry and phase locked loop circuitry with dynamically adjustable bandwidths Electricity 21 Expired
US7693691B1 Systems and methods for simulating link performance Physics 20 Active
US9002155B2 Integrated optical-electronic interface in programmable integrated circuit device Physics 19 Active
US6549032B1 Integrated circuit devices with power supply detection circuitry Physics 19 Expired
US6864704B1 Adjustable differential input and output drivers Electricity 19 Expired
US7986160B2 Apparatus and methods for adjusting performance characteristics and power consumption of programmable logic devices Electricity 17 Expired
US6980022B1 Programmable termination with DC voltage level control Electricity 16 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.