David M. Purdham

Person

Eden Prairie, MN, US

People

Patents Grantslast 30 patents

Information Patent Grant
Memory fault injection
- Patent number 8,181,100
- Issue date May 15, 2012
- Marvell International Ltd.
- David M. Purdham
- G11 - INFORMATION STORAGE
Information Patent Grant
Servo controller interface module for embedded disk controllers
- Patent number 7,870,346
- Issue date Jan 11, 2011
- Marvell International Ltd.
- Larry L. Byers
- G11 - INFORMATION STORAGE
Information Patent Grant
Interrupt controller for prioritizing interrupt requests in an embe...
- Patent number 7,870,320
- Issue date Jan 11, 2011
- Marvell International Ltd.
- David M. Purdham
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Interrupt controller for processing fast and regular interrupts
- Patent number 7,457,903
- Issue date Nov 25, 2008
- Marvell International Ltd.
- David M. Purdham
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and system for embedded disk controllers
- Patent number 7,080,188
- Issue date Jul 18, 2006
- Marvell International Ltd.
- Larry L. Byers
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Priority logic for selecting and stacking data
- Patent number 5,970,253
- Issue date Oct 19, 1999
- Unisys Corporation
- David M. Purdham
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Main memory interface for high speed data transfer
- Patent number 5,822,766
- Issue date Oct 13, 1998
- Unisys Corporation
- David M. Purdham
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for removing soft errors from a memory
- Patent number 5,701,313
- Issue date Dec 23, 1997
- Unisys Corporation
- David M. Purdham
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for detecting errors in a system that employs...
- Patent number 5,666,371
- Issue date Sep 9, 1997
- Unisys Corporation
- David M. Purdham
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Continuous error detection using duplicate core memory cells
- Patent number 5,450,426
- Issue date Sep 12, 1995
- Unisys Corporation
- David M. Purdham
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Continuous embedded parity checking for error detection in memory s...
- Patent number 5,434,871
- Issue date Jul 18, 1995
- Unisys Corporation
- David M. Purdham
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Unconditional clock and automatic refresh logic
- Patent number 4,953,131
- Issue date Aug 28, 1990
- Unisys Corporation
- David M. Purdham
- G11 - INFORMATION STORAGE
Information Patent Grant
Error correction check during write cycles
- Patent number 4,926,426
- Issue date May 15, 1990
- Unisys Corporation
- James H. Scheuneman
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Bank initiate error detection
- Patent number 4,918,696
- Issue date Apr 17, 1990
- Unisys Corporation
- David M. Purdham
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Method and system for embedded disk controllers
- Publication number 20060230214
- Publication date Oct 12, 2006
- Marvell International Ltd.
- Larry L. Byers
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method and system for using an interrupt controller in an embedded...
- Publication number 20040199695
- Publication date Oct 7, 2004
- David M. Purdham
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method and system for embedded disk controllers
- Publication number 20040199718
- Publication date Oct 7, 2004
- Larry L. Byers
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Servo controller interface module for embedded disk controllers
- Publication number 20040193743
- Publication date Sep 30, 2004
- Larry L. Byers
- G11 - INFORMATION STORAGE

David M. Purdham

Person

Patents Grantslast 30 patents

Memory fault injection

Servo controller interface module for embedded disk controllers

Interrupt controller for prioritizing interrupt requests in an embe...

Interrupt controller for processing fast and regular interrupts

Method and system for embedded disk controllers

Priority logic for selecting and stacking data

Main memory interface for high speed data transfer

Method and apparatus for removing soft errors from a memory

Method and apparatus for detecting errors in a system that employs...

Continuous error detection using duplicate core memory cells

Continuous embedded parity checking for error detection in memory s...

Unconditional clock and automatic refresh logic

Error correction check during write cycles

Bank initiate error detection

Patents Applicationslast 30 patents

Method and system for embedded disk controllers

Method and system for using an interrupt controller in an embedded...

Method and system for embedded disk controllers

Servo controller interface module for embedded disk controllers