Inventor · Portland, OR, US

James A. McCall

84Patents
11h-index
75Co-inventors
81Inventor score

Filing activity: Mar 14, 2000 → Oct 2, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US6820163B1 Buffering data transfer between a chipset and memory modules Physics 105 Expired
US7542322B2 Buffered continuous multi-drop clock ring Emerging Cross-Sectional Technologies 26 Expired
US6747483B2 Differential memory interface system Electricity 24 Expired
US6366466B1 Multi-layer printed circuit board with signal traces of varying width Electricity 22 Expired
US7772708B2 Stacking integrated circuit dies Electricity 20 Active
US8274308B2 Method and apparatus for dynamic memory termination Physics 17 Active
US6771515B2 Systems having modules with on die terminations Electricity 16 Expired
US8972685B2 Method, apparatus and system for exchanging communications via a command/address bus Physics 14 Active
US9218575B2 Periodic training for unmatched signal receiver Physics 13 Active
US9934842B2 Multiple rank high bandwidth memory Emerging Cross-Sectional Technologies 12 Active
US6674648B2 Termination cards and systems therefore Electricity 12 Expired
US6700457B2 Impedance compensation for circuit board breakout region Electricity 11 Expired
US9153296B2 Methods and apparatuses for dynamic memory termination Physics 11 Active
US6711027B2 Modules having paths of different impedances Electricity 8 Expired
US10146711B2 Techniques to access or operate a dual in-line memory module via multiple data channels Emerging Cross-Sectional Technologies 8 Active
US7246022B2 Initiation of differential link retraining upon temperature excursion Physics 7 Expired
US6717823B2 Systems having modules with buffer chips Electricity 6 Expired
US7676917B2 Method of manufacturing a circuit board Emerging Cross-Sectional Technologies 6 Active
US6711640B1 Split delay transmission line Electricity 5 Expired
US6515555B2 Memory module with parallel stub traces Electricity 5 Expired
US7133962B2 Circulator chain memory command and address bus topology Physics 5 Expired
US7459200B2 Circuit board design Emerging Cross-Sectional Technologies 5 Expired
US7447929B2 Countering power resonance Physics 5 Active
US6597202B1 Systems with skew control between clock and data signals Electricity 5 Expired
US9786353B2 Reconfigurable clocking architecture Electricity 4 Active

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