Inventor · disambiguated record
David M. Purdham
Also filed as: PURDHAM DAVID M
14 granted patents·1 pending application·304 citations·filing 1988–2009
94Inventor score
Top patents by PatentIndex Score
15 records- 0186US8181100B1Memory fault injectionPURDHAM DAVID M·Filed 2009·Granted May 15, 2012·29 cites·19 claims
- 0279US7457903B2Interrupt controller for processing fast and regular interruptsMARVELL INT LTD·Filed 2003·Granted Nov 25, 2008·20 cites·19 claims
- 0378US7080188B2Method and system for embedded disk controllersMARVELL INT LTD·Filed 2003·Granted Jul 18, 2006·17 cites·18 claims
- 0474US5701313AMethod and apparatus for removing soft errors from a memoryUNISYS CORP·Filed 1995·Granted Dec 23, 1997·76 cites·52 claims
- 0567US4953131AUnconditional clock and automatic refresh logicUNISYS CORP·Filed 1988·Granted Aug 28, 1990·26 cites·15 claims
- 0666US7870320B1Interrupt controller for prioritizing interrupt requests in an embedded disk controllerMARVELL INT LTD·Filed 2008·Granted Jan 11, 2011·2 cites·16 claims
- 0764US7870346B2Servo controller interface module for embedded disk controllersMARVELL INT LTD·Filed 2004·Granted Jan 11, 2011·5 cites·16 claims
- 0862US4926426AError correction check during write cyclesUNISYS CORP·Filed 1988·Granted May 15, 1990·32 cites·2 claims
- 0956US5666371AMethod and apparatus for detecting errors in a system that employs multi-bit wide memory elementsUNISYS CORP·Filed 1995·Granted Sep 9, 1997·33 cites·17 claims
- 1050US2006230214A1Method and system for embedded disk controllersMARVELL INT LTD·Filed 2006·Application pending·0 cites
- 1149US5434871AContinuous embedded parity checking for error detection in memory structuresUNISYS CORP·Filed 1992·Granted Jul 18, 1995·20 cites·7 claims
- 1242US4918696ABank initiate error detectionUNISYS CORP·Filed 1988·Granted Apr 17, 1990·11 cites·2 claims
- 1339US5970253APriority logic for selecting and stacking dataUNISYS CORP·Filed 1997·Granted Oct 19, 1999·12 cites·31 claims
- 1438US5822766AMain memory interface for high speed data transferUNISYS CORP·Filed 1997·Granted Oct 13, 1998·11 cites·12 claims
- 1537US5450426AContinuous error detection using duplicate core memory cellsUNISYS CORP·Filed 1992·Granted Sep 12, 1995·10 cites·2 claims
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