Inventor · Parker, TX, US

Lee D. Whetsel

865Patents
35h-index
9Co-inventors
83Inventor score

Filing activity: Nov 5, 1987 → Aug 9, 2024

Most-cited inventions

PatentTitleAreaCited byStatus
US5483518A Addressable shadow port and protocol for serial bus networks Physics 132 Expired
US6073254A Selectively accessing test access ports in a multiple test access port environment Physics 107 Expired
US4872169A Hierarchical scan selection Physics 105 Expired
US5056093A System scan path architecture Physics 99 Expired
US6408413B1 Hierarchical access of test access ports in embedded core integrated circuits Physics 94 Expired
US6643810B2 Integrated circuits carrying intellectual property cores and test ports Physics 92 Expired
US5084874A Enhanced test circuit Physics 80 Expired
US6199182A Probeless testing of pad buffers on wafer Physics 79 Expired
US5054024A System scan path architecture with remote bus controller Physics 75 Expired
US6763488B2 Generator/compactor scan circuit low power adapter with counter Physics 68 Expired
US5056094A Delay fault testing method and apparatus Physics 66 Expired
US5526365A Method and apparatus for streamlined testing of electrical circuits Physics 61 Expired
US6324662A TAP and linking module for scan access of multiple cores with IEEE 1149.1 test access ports Physics 60 Expired
US5103450A Event qualified testing protocols for integrated circuits Physics 59 Expired
US6499070B1 Circuitry and method of transferring parallel and serial data Electricity 58 Expired
US6378093B1 Controller for scan distributor and controller architecture Physics 57 Expired
US6046600A Process of testing integrated circuit dies on a wafer Physics 57 Expired
US7571364B2 Selectable JTAG or trace access with data store and output Physics 54 Active
US5606566A Method and apparatus for streamlined concurrent testing of electrical circuits Physics 51 Expired
US6242269A Parallel scan distributors and collectors and process of testing integrated circuits Physics 48 Expired
US6804725B1 IC with state machine controlled linking module Physics 47 Expired
US5495487A Testing buffer/register Physics 45 Expired
US5610826A Analog signal monitor circuit and method Physics 45 Expired
US5001713A Event qualified testing architecture for integrated circuits Physics 45 Expired
US5640521A Addressable shadow port and protocol with remote I/O, contol and interrupt ports Physics 45 Expired

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