Inventor · Fremont, CA, US

Ping-Chen Liu

45Patents
10h-index
70Co-inventors
78Inventor score

Filing activity: Sep 16, 2002 → Apr 24, 2024

Most-cited inventions

PatentTitleAreaCited byStatus
US6980045B1 Merged charge pump Electricity 42 Expired
US6816420B1 Column redundancy scheme for serially programmable integrated circuits Physics 22 Expired
US6985757B2 Smart host power supply detection for PC card wireless modem Emerging Cross-Sectional Technologies 22 Expired
US7728569B1 Voltage regulator circuitry with adaptive compensation Physics 21 Active
US7145362B1 Clock signal-distribution network for an integrated circuit Physics 21 Expired
US7088627B1 Column redundancy scheme for non-volatile flash memory using JTAG input protocol Physics 13 Expired
US7106569B2 Adaptive current limiter for wireless modem Electricity 12 Expired
US8324876B1 Unconditional frequency compensation technique on-chip low dropout voltage regulator Physics 12 Active
US8120411B1 Charge pump with ramp rate control Electricity 11 Active
US6861895B1 High voltage regulation circuit to minimize voltage overshoot Electricity 10 Expired
US8013666B1 Low ripple charge pump Electricity 9 Active
US7705659B1 Power regulator circuitry with power-on-reset control Physics 8 Active
US6687157B1 Circuits and methods for identifying a defective memory cell via first, second and third wordline voltages Physics 7 Expired
US9917513B1 Integrated circuit voltage regulator with adaptive current bleeder circuit Physics 7 Active
US8493043B2 Voltage regulator circuitry with adaptive compensation Physics 5 Active
US7353487B1 Regional signal-distribution network for an integrated circuit Physics 5 Expired
US8369175B1 Memory elements with voltage overstress protection Physics 4 Active
US7859301B2 Power regulator circuitry for programmable logic device memory elements Electricity 3 Active
US7868605B1 Mixed mode power regulator circuitry for memory elements Physics 3 Active
US7343175B2 Peak current control in wireless network interface devices Electricity 3 Expired
US7617472B1 Regional signal-distribution network for an integrated circuit Physics 2 Active
US11150943B2 Enabling a single context hardware system to operate as a multi-context system Physics 2 Active
US8698516B2 Apparatus for improving performance of field programmable gate arrays and associated methods Electricity 2 Active
US8843913B2 Dynamic linking and loading of post-processing kernels Physics 1 Active
US8575977B1 Low voltage supply comparator and a method to operate the comparator Electricity 1 Active

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