Inventor · Underhill, VT, US

Harold Pilo

100Patents
16h-index
56Co-inventors
89Inventor score

Filing activity: Oct 5, 1992 → Sep 20, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US5666078A Programmable impedance output driver Electricity 164 Expired
US6208572A Semiconductor memory device having resistive bitline contact testing Physics 64 Expired
US6219288A Memory having user programmable AC timings Physics 51 Expired
US6134182A Cycle independent data to echo clock tracking circuit Physics 47 Expired
US6133749A Variable impedance output driver circuit using analog biases to match driver output impedance to load input impedance Electricity 40 Expired
US8363453B2 Static random access memory (SRAM) write assist circuit with leakage suppression and level control Physics 37 Active
US8233342B2 Apparatus and method for implementing write assist for static random access memory arrays Physics 35 Active
US6754135B2 Reduced latency wide-I/O burst architecture Physics 31 Expired
US7643357B2 System and method for integrating dynamic leakage reduction with write-assisted SRAM architecture Physics 29 Active
US8279687B2 Single supply sub VDD bit-line precharge SRAM and method for level shifting Physics 28 Active
US6509778B2 BIST circuit for variable impedance system Physics 26 Expired
US5343428A Memory having a latching BICMOS sense amplifier Physics 21 Expired
US9123439B2 SRAM write-assisted operation with VDD-to-VCS level shifting Physics 17 Active
US7724565B2 Apparatus and method for small signal sensing in an SRAM cell utilizing PFET access devices Physics 17 Active
US7904658B2 Structure for power-efficient cache memory Emerging Cross-Sectional Technologies 16 Active
US5659508A Special mode enable transparent to normal mode operation Physics 16 Expired
US6038181A Efficient semiconductor burn-in circuit and method of operation Physics 16 Expired
US6400629B1 System and method for early write to memory by holding bitline at fixed potential Physics 14 Expired
US8233337B2 SRAM delay circuit that tracks bitcell characteristics Physics 13 Active
US7613050B2 Sense-amplifier assist (SAA) with power-reduction technique Physics 13 Active
US5978929A Computer unit responsive to difference between external clock period and circuit characteristic period Physics 13 Expired
US6967861B2 Method and apparatus for improving cycle time in a quad data rate SRAM device Physics 11 Expired
US7817481B2 Column selectable self-biasing virtual voltages for SRAM write assist Physics 11 Active
US6999547B2 Delay-lock-loop with improved accuracy and range Electricity 10 Expired
US8027207B2 Leakage compensated reference voltage generation system Physics 10 Active

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