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John F. Zumkehr
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Orange, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Reduced signal level support for memory devices
Patent number
7,729,168
Issue date
Jun 1, 2010
Intel Corporation
John F. Zumkehr
G11 - INFORMATION STORAGE
Information
Patent Grant
Object controlled access and inventory system
Patent number
7,623,032
Issue date
Nov 24, 2009
Key Control Holding, Inc.
Roger A. Niederland
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Calibrated differential voltage crossing
Patent number
7,152,008
Issue date
Dec 19, 2006
Intel Corporation
John F. Zumkehr
G01 - MEASURING TESTING
Information
Patent Grant
System and method for dynamic rank specific timing adjustments for...
Patent number
7,127,584
Issue date
Oct 24, 2006
Intel Corporation
Derek A. Thompson
G11 - INFORMATION STORAGE
Information
Patent Grant
Internal voltage reference for memory interface
Patent number
7,095,245
Issue date
Aug 22, 2006
Intel Corporation
John F. Zumkehr
G11 - INFORMATION STORAGE
Information
Patent Grant
Hybrid compensated buffer design
Patent number
7,071,728
Issue date
Jul 4, 2006
Intel Corporation
James E. Chandler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method and device for symmetrical slew rate calibration
Patent number
7,046,062
Issue date
May 16, 2006
Intel Corporation
John F. Zumkehr
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Two dimensional data eye centering for source synchronous data tran...
Patent number
7,036,053
Issue date
Apr 25, 2006
Intel Corporation
John F. Zumkehr
G11 - INFORMATION STORAGE
Information
Patent Grant
Memory bus termination
Patent number
6,965,529
Issue date
Nov 15, 2005
Intel Coproration
John F. Zumkehr
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Write pointer error recovery
Patent number
6,956,775
Issue date
Oct 18, 2005
Intel Corporation
Derek A. Thompson
G11 - INFORMATION STORAGE
Information
Patent Grant
Hybrid compensated buffer design
Patent number
6,922,077
Issue date
Jul 26, 2005
Intel Corporation
James E. Chandler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
System and method for delaying a strobe signal based on a slave del...
Patent number
6,918,048
Issue date
Jul 12, 2005
Intel Corporation
John F. Zumkehr
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Memory control translators
Patent number
6,901,494
Issue date
May 31, 2005
Intel Corporation
John F. Zumkehr
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and device for symmetrical slew rate calibration
Patent number
6,864,731
Issue date
Mar 8, 2005
Intel Corporation
John F. Zumkehr
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Systems and methods for use in reduced instruction set computer pro...
Patent number
6,785,842
Issue date
Aug 31, 2004
McDonnell Douglas Corporation
John F. Zumkehr
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for control calibration of multiple memory mod...
Patent number
6,629,225
Issue date
Sep 30, 2003
Intel Corporation
John F. Zumkehr
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for utilizing write buffers in memory control/...
Patent number
6,622,227
Issue date
Sep 16, 2003
Intel Corporation
John F. Zumkehr
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and device for symmetrical slew rate calibration
Patent number
6,617,895
Issue date
Sep 9, 2003
Intel Corporation
John F. Zumkehr
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
System and method for minimizing delay variation in double data rat...
Patent number
6,581,017
Issue date
Jun 17, 2003
Intel Corporation
John F. Zumkehr
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Selective forwarding of a strobe based on a predetermined delay fol...
Patent number
6,456,544
Issue date
Sep 24, 2002
Intel Corporation
John F. Zumkehr
G11 - INFORMATION STORAGE
Information
Patent Grant
Calibrating data strobe signal using adjustable delays with feedback
Patent number
6,316,980
Issue date
Nov 13, 2001
Intel Corporation
Pete D. Vogt
G11 - INFORMATION STORAGE
Information
Patent Grant
Systems and methods for transient error recovery in reduced instruc...
Patent number
6,247,118
Issue date
Jun 12, 2001
McDonnell Douglas Corporation
John F. Zumkehr
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Systems and methods for reduced error detection latency using encod...
Patent number
6,173,414
Issue date
Jan 9, 2001
McDonnell Douglas Corporation
John F. Zumkehr
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Systems and methods for control flow error detection in reduced ins...
Patent number
5,974,529
Issue date
Oct 26, 1999
McDonnell Douglas Corp.
John F. Zumkehr
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
DOUBLE DATA RATE (DDR) LOW POWER IDLE MODE THROUGH REFERENCE OFFSET
Publication number
20090080266
Publication date
Mar 26, 2009
John F. Zumkehr
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
REDUCED SIGNAL LEVEL SUPPORT FOR MEMORY DEVICES
Publication number
20090003112
Publication date
Jan 1, 2009
JOHN F. ZUMKEHR
G11 - INFORMATION STORAGE
Information
Patent Application
Test validation of an integrated device
Publication number
20060129866
Publication date
Jun 15, 2006
James E. Chandler
G11 - INFORMATION STORAGE
Information
Patent Application
Calibrated differential voltage crossing
Publication number
20060116839
Publication date
Jun 1, 2006
John F. Zumkehr
G01 - MEASURING TESTING
Information
Patent Application
Method and device for symmetrical slew rate calibration
Publication number
20050189975
Publication date
Sep 1, 2005
John F. Zumkehr
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Hybrid compensated buffer design
Publication number
20050110517
Publication date
May 26, 2005
James E. Chandler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Internal voltage reference for memory interface
Publication number
20050104624
Publication date
May 19, 2005
John F. Zumkehr
G11 - INFORMATION STORAGE
Information
Patent Application
HYBRID COMPENSATED BUFFER DESIGN
Publication number
20040263204
Publication date
Dec 30, 2004
James E. Chandler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Two dimensional data eye centering for source synchronous data tran...
Publication number
20040123207
Publication date
Jun 24, 2004
Intel Corporation
John F. Zumkehr
G11 - INFORMATION STORAGE
Information
Patent Application
Object controlled access and inventory system
Publication number
20040111323
Publication date
Jun 10, 2004
Roger A. Niederland
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Test validation of an integrated device
Publication number
20040093388
Publication date
May 13, 2004
James E. Chandler
G11 - INFORMATION STORAGE
Information
Patent Application
Method and apparatus for utilizing write buffers in memory control/...
Publication number
20040015650
Publication date
Jan 22, 2004
John F. Zumkehr
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Memory bus termination
Publication number
20030235084
Publication date
Dec 25, 2003
John F. Zumkehr
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Method and device for symmetrical slew rate calibration
Publication number
20030201811
Publication date
Oct 30, 2003
John F. Zumkehr
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Method and circuit to implement double data rate testing
Publication number
20030120989
Publication date
Jun 26, 2003
John F. Zumkehr
G01 - MEASURING TESTING
Information
Patent Application
System and method for minimizing delay variation in double data rat...
Publication number
20030004667
Publication date
Jan 2, 2003
John F. Zumkehr
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
System and method for delaying a strobe signal
Publication number
20030005346
Publication date
Jan 2, 2003
John F. Zumkehr
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Method and apparatus for control calibration of multiple memory mod...
Publication number
20020184461
Publication date
Dec 5, 2002
John F. Zumkehr
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SELECTIVE FORWARDING OF A STROBE BASED ON A PREDETERMINED DELAY FOL...
Publication number
20020141253
Publication date
Oct 3, 2002
John F. Zumkehr
G11 - INFORMATION STORAGE
Information
Patent Application
Method and device for symmetrical slew rate calibration
Publication number
20020140475
Publication date
Oct 3, 2002
John F. Zumkehr
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Method and apparatus for utilizing write buffers in memory control/...
Publication number
20020083287
Publication date
Jun 27, 2002
John F. Zumkehr
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Systems and methods for transient error recovery in reduced instruc...
Publication number
20010025338
Publication date
Sep 27, 2001
The Boeing Company
John F. Zumkehr
G06 - COMPUTING CALCULATING COUNTING