Patent assignee · US · COMPANY

Pericom Semiconductor Corporation

139Patents
31Active
139Granted
48Portfolio score

Filing activity: Jun 15, 1994 → Mar 14, 2018 · 13 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US5719862A Packet-based dynamic de-skewing for network switch with local or central clock Electricity 165 Expired
US6690192B1 Current-compensated CMOS output buffer adjusting edge rate for process, temperature, and Vcc variations Electricity 132 Expired
US5917340A Twisted-pair driver with staggered differential drivers and glitch free binary to multi level transmit encoder Electricity 106 Expired
US7480303B1 Pseudo-ethernet switch without ethernet media-access-controllers (MAC's) that copies ethernet context registers between PCI-express ports Electricity 103 Active
US6169912A RF front-end with signal cancellation using receiver signal to eliminate duplexer for a cordless phone Electricity 98 Expired
US7464174B1 Shared network-interface controller (NIC) using advanced switching (AS) turn-pool routing field to select from among multiple contexts for multiple processors Electricity 90 Active
US5717343A High-drive CMOS output buffer with noise supression using pulsed drivers and neighbor-sensing Electricity 65 Expired
US5631587A Frequency synthesizer with adaptive loop bandwidth Electricity 62 Expired
US6049229A Self-biasing CMOS PECL receiver with wide common-mode range and multi-level-transmit to binary decoder Electricity 61 Expired
US8237414B1 Multi-mode charger device Electricity 59 Active
US7174411B1 Dynamic allocation of PCI express lanes using a differential mux to an additional lane to a host Physics 58 Expired
US7132835B1 PLL with built-in filter-capacitor leakage-tester with current pump and comparator Electricity 58 Expired
US5444397A All-CMOS high-impedance output buffer for a bus driven by multiple power-supply voltages Electricity 56 Expired
US5694072A Programmable substrate bias generator with current-mirrored differential comparator and isolated bulk-node sensing transistor for bias voltage control Physics 55 Expired
US6320438A Duty-cycle correction driver with dual-filter feedback loop Electricity 54 Expired
US6426662B1 Twisted-ring oscillator and delay line generating multiple phases using differential dividers and comparators to match delays Electricity 50 Expired
US7107384B1 Dynamic PCI-bus pre-fetch with separate counters for commands of commands of different data-transfer lengths Physics 48 Expired
US5719427A Avalanche-enhanced CMOS transistor for EPROM/EEPROM and ESD-protection structures Electricity 47 Expired
US6756834B1 Direct power-to-ground ESD protection with an electrostatic common-discharge line Electricity 47 Expired
US6124741A Accurate PLL charge pump with matched up/down currents from Vds-compensated common-gate switches Electricity 44 Expired
US6501307B1 Spread-spectrum clock buffer/driver that modulates clock period by switching loads Electricity 41 Expired
US5963053A Self-biasing CMOS PECL receiver with wide common-mode range and multi-level-transmit to binary decoder Electricity 39 Expired
US5808502A Parallel micro-relay bus switch for computer network communication with reduced crosstalk and low on-resistance using charge pumps Electricity 38 Expired
US6552886B1 Active Vcc-to-Vss ESD clamp with hystersis for low supply chips Electricity 37 Expired
US5764710A Meta-stable-resistant front-end to a synchronizer with asynchronous clear and asynchronous second-stage clock selector Electricity 35 Expired

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.