David J. Krolak

Person

Rochester, MN, US

People

Patents Grantslast 30 patents

Information Patent Grant
Reducing time of day latency variation in a multi processor system
- Patent number 10,969,822
- Issue date Apr 6, 2021
- International Business Machines Corporation
- Paul A. Ganfield
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
ACK clock compensation for high-speed serial communication interfaces
- Patent number 10,693,595
- Issue date Jun 23, 2020
- International Business Machines Corporation
- Paul A. Ganfield
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Link-level cyclic redundancy check replay for non-blocking coherenc...
- Patent number 10,664,398
- Issue date May 26, 2020
- International Business Machines Corporation
- Charles F. Marino
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Coherence protocol providing speculative coherence response to dire...
- Patent number 10,613,980
- Issue date Apr 7, 2020
- International Business Machines Corporation
- Guy L. Guthrie
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Dropped command truncation for efficient queue utilization in multi...
- Patent number 10,606,777
- Issue date Mar 31, 2020
- International Business Machines Corporation
- David J. Krolak
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Reducing time of day latency variation in a multi-processor system
- Patent number 10,324,491
- Issue date Jun 18, 2019
- International Business Machines Corporation
- Paul A. Ganfield
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Pre-transmission data reordering for a serial interface
- Patent number 10,216,653
- Issue date Feb 26, 2019
- International Busiess Machines Corporation
- Lakshminarayana Baba Arimilli
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
ACK clock compensation for high-speed serial communication interfaces
- Patent number 10,128,985
- Issue date Nov 13, 2018
- International Business Machines Corporation
- Paul A. Ganfield
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Processor performance monitoring unit synchronization
- Patent number 9,626,229
- Issue date Apr 18, 2017
- International Business Machines Corporation
- David J. Krolak
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Command rate configuration in data processing system
- Patent number 9,575,921
- Issue date Feb 21, 2017
- International Business Machines Corporation
- Guy L. Guthrie
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Determining command rate based on dropped commands
- Patent number 9,495,314
- Issue date Nov 15, 2016
- International Business Machines Corporation
- Paul A. Ganfield
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Determining command rate based on dropped commands
- Patent number 9,495,312
- Issue date Nov 15, 2016
- International Business Machines Corporation
- Paul A. Ganfield
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
System interconnect dynamic scaling by predicting I/O requirements
- Patent number 9,324,030
- Issue date Apr 26, 2016
- International Business Machines Corporation
- Daniel Mark Dreps
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
System interconnect dynamic scaling by predicting I/O requirements
- Patent number 9,324,031
- Issue date Apr 26, 2016
- International Business Machines Corporation
- Daniel Mark Dreps
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Command rate configuration in data processing system
- Patent number 9,251,111
- Issue date Feb 2, 2016
- International Business Machines Corporation
- Guy L. Guthrie
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Memory coherence directory supporting remotely sourced requests of...
- Patent number 8,510,512
- Issue date Aug 13, 2013
- International Business Machines Corporation
- Paul A. Ganfield
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Memory coherence directory supporting remotely sourced requests of...
- Patent number 8,504,779
- Issue date Aug 6, 2013
- International Business Machines Corporation
- Paul A. Ganfield
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Structure for a livelock resolution circuit
- Patent number 8,171,448
- Issue date May 1, 2012
- International Business Machines Corporation
- Charles R. Johns
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Methods and apparatus for reducing command processing latency while...
- Patent number 8,112,590
- Issue date Feb 7, 2012
- International Business Machines Corporation
- Jeffrey Douglas Brown
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Livelock resolution
- Patent number 7,861,022
- Issue date Dec 28, 2010
- International Business Machines Corporation
- Charles R. Johns
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for testing a ring of non-scan latches with lo...
- Patent number 7,797,600
- Issue date Sep 14, 2010
- International Business Machines Corporation
- Louis B. Bushard
- G01 - MEASURING TESTING
Information Patent Grant
Directory for multi-node coherent bus
- Patent number 7,725,660
- Issue date May 25, 2010
- International Business Machines Corporation
- Gary Dale Carpenter
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Directory for multi-node coherent bus
- Patent number 7,669,013
- Issue date Feb 23, 2010
- International Business Machines Corporation
- Gary Dale Carpenter
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Livelock resolution method
- Patent number 7,500,035
- Issue date Mar 3, 2009
- International Business Machines Corporation
- Charles R. Johns
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for managing dependencies between split transa...
- Patent number 7,487,267
- Issue date Feb 3, 2009
- International Business Machines Corporation
- David John Krolak
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for testing a ring of non-scan latches with lo...
- Patent number 7,406,640
- Issue date Jul 29, 2008
- International Business Machines Corporation
- Louis Bernard Bushard
- G01 - MEASURING TESTING
Information Patent Grant
Fair hierarchical arbiter
- Patent number 7,302,510
- Issue date Nov 27, 2007
- International Business Machines Corporation
- Mark S. Fredrickson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Bus interface controller for determining access counts
- Patent number 7,124,257
- Issue date Oct 17, 2006
- International Business Machines Corporation
- Jeffrey Douglas Brown
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Shared bus non-sequential data ordering method and apparatus
- Patent number 6,523,080
- Issue date Feb 18, 2003
- International Business Machines Corporation
- Herman Lee Blackmon
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
CMOS off-chip driver circuit
- Patent number 6,198,316
- Issue date Mar 6, 2001
- International Business Machines Corporation
- David John Krolak
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
DROPPED COMMAND TRUNCATION FOR EFFICIENT QUEUE UTILIZATION IN MULTI...
- Publication number 20200065276
- Publication date Feb 27, 2020
- International Business Machines Corporation
- David J. Krolak
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
LINK-LEVEL CYCLIC REDUNDANCY CHECK REPLAY FOR NON-BLOCKING COHERENC...
- Publication number 20200042449
- Publication date Feb 6, 2020
- International Business Machines Corporation
- Charles F. Marino
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
COHERENCE PROTOCOL PROVIDING SPECULATIVE COHERENCE RESPONSE TO DIRE...
- Publication number 20190188138
- Publication date Jun 20, 2019
- International Business Machines Corporation
- GUY L. GUTHRIE
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
REDUCING TIME OF DAY LATENCY VARIATION IN A MULTI-PROCESSOR SYSTEM
- Publication number 20190179364
- Publication date Jun 13, 2019
- International Business Machines Corporation
- Paul A. Ganfield
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ACK CLOCK COMPENSATION FOR HIGH-SPEED SERIAL COMMUNICATION INTERFACES
- Publication number 20180375618
- Publication date Dec 27, 2018
- International Business Machines Corporation
- Paul A. Ganfield
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
REDUCING TIME OF DAY LATENCY VARIATION IN A MULTI-PROCESSOR SYSTEM
- Publication number 20180232006
- Publication date Aug 16, 2018
- International Business Machines Corporation
- Paul A. Ganfield
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
PRE-TRANSMISSION DATA REORDERING FOR A SERIAL INTERFACE
- Publication number 20180095905
- Publication date Apr 5, 2018
- International Business Machines Corporation
- LAKSHMINARAYANA BABA ARIMILLI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ACK CLOCK COMPENSATION FOR HIGH-SPEED SERIAL COMMUNICATION INTERFACES
- Publication number 20180006768
- Publication date Jan 4, 2018
- International Business Machines Corporation
- Paul A. Ganfield
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SYSTEM INTERCONNECT DYNAMIC SCALING BY PREDICTING I/O REQUIREMENTS
- Publication number 20150193690
- Publication date Jul 9, 2015
- International Business Machines Corporation
- Daniel Mark Dreps
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SYSTEM INTERCONNECT DYNAMIC SCALING BY PREDICTING I/O REQUIREMENTS
- Publication number 20150192981
- Publication date Jul 9, 2015
- International Business Machines Corporation
- Daniel Mark Dreps
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
COMMAND RATE CONFIGURATION IN DATA PROCESSING SYSTEM
- Publication number 20150178239
- Publication date Jun 25, 2015
- International Business Machines Corporation
- GUY L. GUTHRIE
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DETERMINING COMMAND RATE BASED ON DROPPED COMMANDS
- Publication number 20150178231
- Publication date Jun 25, 2015
- International Business Machines Corporation
- PAUL A. GANFIELD
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
COMMAND RATE CONFIGURATION IN DATA PROCESSING SYSTEM
- Publication number 20150178238
- Publication date Jun 25, 2015
- GUY L. GUTHRIE
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DETERMINING COMMAND RATE BASED ON DROPPED COMMANDS
- Publication number 20150178230
- Publication date Jun 25, 2015
- PAUL A. GANFIELD
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MEMORY COHERENCE DIRECTORY SUPPORTING REMOTELY SOURCED REQUESTS OF...
- Publication number 20120203976
- Publication date Aug 9, 2012
- International Business Machines Corporation
- Paul A. Ganfield
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MEMORY COHERENCE DIRECTORY SUPPORTING REMOTELY SOURCED REQUESTS OF...
- Publication number 20110047352
- Publication date Feb 24, 2011
- International Business Machines Corporation
- Paul A. Ganfield
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Livelock Resolution
- Publication number 20090164682
- Publication date Jun 25, 2009
- International Business Machines Corporation
- Charles R. Johns
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Directory for Multi-Node Coherent Bus
- Publication number 20090031085
- Publication date Jan 29, 2009
- Gary Dale Carpenter
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Directory For Multi-Node Coherent Bus
- Publication number 20090031086
- Publication date Jan 29, 2009
- Gary Dale Carpenter
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method and Apparatus for Testing a Ring of Non-Scan Latches with Lo...
- Publication number 20080250290
- Publication date Oct 9, 2008
- International Business Machines Corporation
- Louis Bernard Bushard
- G01 - MEASURING TESTING
Information Patent Application
Design Structure for a Livelock Resolution Circuit
- Publication number 20080228974
- Publication date Sep 18, 2008
- International Business Machines Corporation
- Charles R. Johns
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Livelock Resolution Method and Apparatus
- Publication number 20080071955
- Publication date Mar 20, 2008
- Charles R. Johns
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
METHODS AND APPARATUS FOR REDUCING COMMAND PROCESSING LATENCY WHILE...
- Publication number 20080052472
- Publication date Feb 28, 2008
- Jeffrey Douglas Brown
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
METHOD AND APPARATUS FOR TESTING A RING OF NON-SCAN LATCHES WITH LO...
- Publication number 20070234159
- Publication date Oct 4, 2007
- LOUIS BERNARD BUSHARD
- G01 - MEASURING TESTING
Information Patent Application
Method and apparatus for managing dependencies between split transa...
- Publication number 20070198751
- Publication date Aug 23, 2007
- International Business Machines Corporation
- David John Krolak
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method and apparatus for implementing control of a multiple ring hy...
- Publication number 20070186027
- Publication date Aug 9, 2007
- International Business Machines Corporation
- Danny J. Klema
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Methods and apparatus for reducing command processing latency while...
- Publication number 20070186052
- Publication date Aug 9, 2007
- International Business Machines Corporation
- Jeffrey Douglas Brown
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Methods and apparatus for reducing command reissue latency
- Publication number 20070174556
- Publication date Jul 26, 2007
- International Business Machines Corporation
- Jeffrey D. Brown
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Fair hierarchical arbiter
- Publication number 20070073949
- Publication date Mar 29, 2007
- International Business Machines Corporation
- Mark S. Fredrickson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Single port/multiple ring implementation of a hybrid crossbar parti...
- Publication number 20060206657
- Publication date Sep 14, 2006
- Scott Douglas Clark
- G06 - COMPUTING CALCULATING COUNTING

David J. Krolak

Person

Patents Grantslast 30 patents

Reducing time of day latency variation in a multi processor system

ACK clock compensation for high-speed serial communication interfaces

Link-level cyclic redundancy check replay for non-blocking coherenc...

Coherence protocol providing speculative coherence response to dire...

Dropped command truncation for efficient queue utilization in multi...

Reducing time of day latency variation in a multi-processor system

Pre-transmission data reordering for a serial interface

ACK clock compensation for high-speed serial communication interfaces

Processor performance monitoring unit synchronization

Command rate configuration in data processing system

Determining command rate based on dropped commands

Determining command rate based on dropped commands

System interconnect dynamic scaling by predicting I/O requirements

System interconnect dynamic scaling by predicting I/O requirements

Command rate configuration in data processing system

Memory coherence directory supporting remotely sourced requests of...

Memory coherence directory supporting remotely sourced requests of...

Structure for a livelock resolution circuit

Methods and apparatus for reducing command processing latency while...

Livelock resolution

Method and apparatus for testing a ring of non-scan latches with lo...

Directory for multi-node coherent bus

Directory for multi-node coherent bus

Livelock resolution method

Method and apparatus for managing dependencies between split transa...

Method and apparatus for testing a ring of non-scan latches with lo...

Fair hierarchical arbiter

Bus interface controller for determining access counts

Shared bus non-sequential data ordering method and apparatus

CMOS off-chip driver circuit

Patents Applicationslast 30 patents

DROPPED COMMAND TRUNCATION FOR EFFICIENT QUEUE UTILIZATION IN MULTI...

LINK-LEVEL CYCLIC REDUNDANCY CHECK REPLAY FOR NON-BLOCKING COHERENC...

COHERENCE PROTOCOL PROVIDING SPECULATIVE COHERENCE RESPONSE TO DIRE...

REDUCING TIME OF DAY LATENCY VARIATION IN A MULTI-PROCESSOR SYSTEM

ACK CLOCK COMPENSATION FOR HIGH-SPEED SERIAL COMMUNICATION INTERFACES

REDUCING TIME OF DAY LATENCY VARIATION IN A MULTI-PROCESSOR SYSTEM

PRE-TRANSMISSION DATA REORDERING FOR A SERIAL INTERFACE

ACK CLOCK COMPENSATION FOR HIGH-SPEED SERIAL COMMUNICATION INTERFACES

SYSTEM INTERCONNECT DYNAMIC SCALING BY PREDICTING I/O REQUIREMENTS

SYSTEM INTERCONNECT DYNAMIC SCALING BY PREDICTING I/O REQUIREMENTS

COMMAND RATE CONFIGURATION IN DATA PROCESSING SYSTEM

DETERMINING COMMAND RATE BASED ON DROPPED COMMANDS

COMMAND RATE CONFIGURATION IN DATA PROCESSING SYSTEM

DETERMINING COMMAND RATE BASED ON DROPPED COMMANDS

MEMORY COHERENCE DIRECTORY SUPPORTING REMOTELY SOURCED REQUESTS OF...

MEMORY COHERENCE DIRECTORY SUPPORTING REMOTELY SOURCED REQUESTS OF...

Livelock Resolution

Directory for Multi-Node Coherent Bus

Directory For Multi-Node Coherent Bus

Method and Apparatus for Testing a Ring of Non-Scan Latches with Lo...

Design Structure for a Livelock Resolution Circuit

Livelock Resolution Method and Apparatus

METHODS AND APPARATUS FOR REDUCING COMMAND PROCESSING LATENCY WHILE...

METHOD AND APPARATUS FOR TESTING A RING OF NON-SCAN LATCHES WITH LO...

Method and apparatus for managing dependencies between split transa...

Method and apparatus for implementing control of a multiple ring hy...

Methods and apparatus for reducing command processing latency while...

Methods and apparatus for reducing command reissue latency

Fair hierarchical arbiter

Single port/multiple ring implementation of a hybrid crossbar parti...