Inventor · San Jose, CA, US

Roxanne Vu

42Patents
17h-index
24Co-inventors
81Inventor score

Filing activity: Oct 10, 1997 → Feb 10, 2022

Most-cited inventions

PatentTitleAreaCited byStatus
US6643787B1 Bus system optimization Electricity 313 Expired
US6950956B2 Integrated circuit with timing adjustment mechanism and method Electricity 132 Expired
US6133773A Variable delay element Electricity 104 Expired
US7042914B2 Calibrated data communication system and method Electricity 77 Expired
US6967514B2 Method and apparatus for digital duty cycle adjustment Electricity 70 Expired
US6509756B1 Method and apparatus for low capacitance, high output impedance driver Physics 66 Expired
US6369652B1 Differential amplifiers with current and resistance compensation elements for balanced output Electricity 64 Expired
US6759881B2 System with phase jumping locked loop circuit Electricity 61 Expired
US6806728B2 Circuit and method for interfacing to a bus channel Physics 54 Expired
US7535933B2 Calibrated data communication system and method Electricity 53 Active
US7307461B2 System and method for adaptive duty cycle optimization Physics 37 Expired
US6897699B1 Clock distribution network with process, supply-voltage, and temperature compensation Electricity 33 Expired
US6643790B1 Duty cycle correction circuit with frequency-dependent bias generator Electricity 33 Expired
US6330193A Method and apparatus for low capacitance, high output impedance driver Physics 26 Expired
US7095265B2 PVT-compensated clock distribution Electricity 20 Expired
US6727759B2 Collective automatic gain control Electricity 18 Expired
US6600374B2 Collective automatic gain control Electricity 18 Expired
US6781416B1 Push-pull output driver Electricity 16 Expired
US8170067B2 Memory system with calibrated data communication Electricity 11 Active
US7135903B2 Phase jumping locked loop circuit Electricity 10 Expired
US6897713B1 Method and apparatus for distributed voltage compensation with a voltage driver that is responsive to feedback Physics 10 Expired
US6600338B1 Apparatus and method for level-shifting input receiver circuit from high external voltage to low internal supply voltage Electricity 10 Expired
US6960948B2 System with phase jumping locked loop circuit Electricity 10 Expired
US7138877B2 PLL and method for providing a single/multiple adjustable frequency range Electricity 9 Expired
US7015721B2 Push-pull output driver Electricity 9 Expired

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