Inventor · Beaverton, OR, US

John B. Halbert

99Patents
32h-index
49Co-inventors
88Inventor score

Filing activity: Jun 23, 1989 → May 28, 2019

Most-cited inventions

PatentTitleAreaCited byStatus
US6317352A Apparatus for implementing a buffered daisy chain connection between a memory controller and memory modules Emerging Cross-Sectional Technologies 370 Expired
US6742098B1 Dual-port buffer-to-memory interface Physics 347 Expired
US6658509B1 Multi-tier point-to-point ring memory interface Physics 283 Expired
US6487102B1 Memory module having buffer for isolating stacked memory devices Physics 233 Expired
US6625687B1 Memory module employing a junction circuit for point-to-point connection isolation, voltage translation, data synchronization, and multiplexing/demultiplexing Emerging Cross-Sectional Technologies 229 Expired
US6553450B1 Buffer to multiply memory interface Emerging Cross-Sectional Technologies 218 Expired
US6493250B2 Multi-tier point-to-point buffered memory interface Physics 158 Expired
US9032141B2 Row hammer monitoring based on stored row hammer threshold value Physics 133 Active
US7024518B2 Dual-port buffer-to-memory interface Physics 129 Expired
US6747887B2 Memory module having buffer for isolating stacked memory devices Physics 106 Expired
US6820163B1 Buffering data transfer between a chipset and memory modules Physics 105 Expired
US9384821B2 Row hammer monitoring based on stored row hammer threshold value Physics 97 Active
US9117544B2 Row hammer refresh command Physics 92 Active
US6928571B1 Digital system of adjusting delays on circuit boards Physics 91 Expired
US8862973B2 Method and system for error management in a memory device Physics 89 Active
US6369605B1 Self-terminated driver to prevent signal reflections of transmissions between electronic devices Electricity 87 Expired
US8938573B2 Row hammer condition monitoring Physics 84 Active
US9747971B2 Row hammer refresh command Physics 82 Active
US9286964B2 Method, apparatus and system for responding to a row hammer event Physics 82 Active
US9865326B2 Row hammer refresh command Physics 78 Active
US10083737B2 Row hammer monitoring based on stored row hammer threshold value Physics 75 Active
US10210925B2 Row hammer refresh command Physics 72 Active
US7281079B2 Method and apparatus to counter mismatched burst lengths Physics 71 Expired
US6449213B1 Memory interface having source-synchronous command/address signaling Physics 70 Expired
US6530006B1 System and method for providing reliable transmission in a buffered memory system Physics 65 Expired

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