Patents by Inventor Christopher J. Engel

Christopher J. Engel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11206141
    Abstract: Method, apparatus, and computer program product are provided for merging multiple compute nodes with trusted platform modules utilizing provisioned node certificates. In some embodiments, compute nodes are connected to be available for merger into a single multi-node system. Each compute node includes a trusted platform module (TPM) provisioned with a platform certificate and a signed attestation key (AK) certificate and is accessible to firmware on the compute node. One compute node is assigned the role of master compute node (MCN), with the other compute node(s) each assigned the role of slave compute node (SCN). A quote request is sent from the MCN to each SCN under control of firmware on the MCN. In response to receiving the quote request, a quote response is sent from each respective SCN to the MCN under control of firmware on the respective SCN, wherein the quote response includes the AK certificate of the respective SCN's TPM.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: December 21, 2021
    Assignee: International Business Machines Corporation
    Inventors: Timothy R. Block, Elaine R. Palmer, Kenneth A. Goldman, Christopher J. Engel, William E. Hall
  • Patent number: 11181549
    Abstract: A method of probing printed circuit boards that includes providing a circuit board design including a plurality of probe points, and selecting a probe point including a location ink from the plurality of probe points in the circuit board design to be probed on a physical printed circuit board design. The method continues with probing at least one probe point of the plurality of probe points with a probe that activates the location ink. Activation of the location ink by the probe indicates the selected probe point including the locating ink.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: November 23, 2021
    Assignee: International Business Machines Corporation
    Inventors: Jason T. Albert, Matthew S. Doyle, Christopher J. Engel, Kahn C. Evans, Steven B. Janssen, Matt K. Light
  • Patent number: 11165766
    Abstract: A method and computer system for implementing authentication protocol for merging multiple server nodes with trusted platform modules (TPMs) utilizing provisioned node certificates to support concurrent node add and node remove. Each of the multiple server nodes boots an instance of enablement level firmware and extended to a trusted platform module (TPM) on each node as the server nodes are powered up. A hardware secure channel is established between the server nodes for firmware message passing as part of physical configuration of the server nodes to be merged. A shared secret is securely exchanged via the hardware secure channel between the server nodes establishing an initial authentication value shared among all server nodes. All server nodes confirm common security configuration settings and exchange TPM log and platform configuration register (PCR) data to establish common history for future attestation requirements, enabling dynamic changing the server nodes and concurrently adding and removing nodes.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: November 2, 2021
    Assignee: International Business Machines Corporation
    Inventors: Timothy R. Block, Elaine R. Palmer, Kenneth A. Goldman, William E. Hall, Hugo M. Krawczyk, David D. Sanner, Christopher J. Engel, Peter A. Sandon, Alwood P. Williams, III
  • Patent number: 10915481
    Abstract: An approach is provided in which an information handling system detects a reduced capacity on a PCIe link that interfaces a host system to a PCIe I/O expansion drawer over a first/second physical cable. The information handling system verifies a first/second connection to a first/second connector on the PCIe I/O expansion drawer, receives a first/second set of vital product data over the first/second physical cable, and determines that the first physical cable and the second physical cable are connected to the same PCIe I/O expansion drawer based on analyzing the first/second set of vital product data. The information handling system then suspends operation of one or more components corresponding to the PCIe link and trains the PCIe link to an increased capacity. In turn, the information handling system resumes operation of the one or more components and restores the PCIe link to the increased capacity.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: February 9, 2021
    Assignee: International Business Machines Corporation
    Inventors: Curtis S. Eide, Christopher J. Engel, Aditya Saripalli
  • Patent number: 10885197
    Abstract: Method, apparatus, and computer program product are provided for merging multiple compute nodes with trusted platform modules (TPMs) utilizing an authentication protocol with active TPM provisioning. In some embodiments, compute nodes are connected to be available for merger into a single multi-node system. Each compute node includes a TPM accessible to firmware on the node. One compute node is assigned the role of master compute node (MCN), with the other node(s) each assigned the role of slave compute node (SCN). Active TPM provisioning in each SCN produces key information that is sent to the MCN to enable use of a challenge/response exchange with each SCN. A quote request is sent from the MCN to each SCN. In response to receiving the quote request, a quote response is sent from each respective SCN to the MCN, wherein the quote response includes slave TPM content along with TPM logs and associated signatures.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: January 5, 2021
    Assignee: International Business Machines Corporation
    Inventors: Timothy R. Block, Elaine R. Palmer, Kenneth A. Goldman, Christopher J. Engel, William E. Hall
  • Publication number: 20200099536
    Abstract: Method, apparatus, and computer program product are provided for merging multiple compute nodes with trusted platform modules utilizing provisioned node certificates. In some embodiments, compute nodes are connected to be available for merger into a single multi-node system. Each compute node includes a trusted platform module (TPM) provisioned with a platform certificate and a signed attestation key (AK) certificate and is accessible to firmware on the compute node. One compute node is assigned the role of master compute node (MCN), with the other compute node(s) each assigned the role of slave compute node (SCN). A quote request is sent from the MCN to each SCN under control of firmware on the MCN. In response to receiving the quote request, a quote response is sent from each respective SCN to the MCN under control of firmware on the respective SCN, wherein the quote response includes the AK certificate of the respective SCN's TPM.
    Type: Application
    Filed: September 21, 2018
    Publication date: March 26, 2020
    Inventors: Timothy R. Block, Elaine R. Palmer, Kenneth A. Goldman, Christopher J. Engel, William E. Hall
  • Publication number: 20200097661
    Abstract: Method, apparatus, and computer program product are provided for merging multiple compute nodes with trusted platform modules (TPMs) utilizing an authentication protocol with active TPM provisioning. In some embodiments, compute nodes are connected to be available for merger into a single multi-node system. Each compute node includes a TPM accessible to firmware on the node. One compute node is assigned the role of master compute node (MCN), with the other node(s) each assigned the role of slave compute node (SCN). Active TPM provisioning in each SCN produces key information that is sent to the MCN to enable use of a challenge/response exchange with each SCN. A quote request is sent from the MCN to each SCN. In response to receiving the quote request, a quote response is sent from each respective SCN to the MCN, wherein the quote response includes slave TPM content along with TPM logs and associated signatures.
    Type: Application
    Filed: September 21, 2018
    Publication date: March 26, 2020
    Inventors: Timothy R. Block, Elaine R. Palmer, Kenneth A. Goldman, Christopher J. Engel, William E. Hall
  • Publication number: 20200067912
    Abstract: A method and computer system for implementing authentication protocol for merging multiple server nodes with trusted platform modules (TPMs) utilizing provisioned node certificates to support concurrent node add and node remove. Each of the multiple server nodes boots an instance of enablement level firmware and extended to a trusted platform module (TPM) on each node as the server nodes are powered up. A hardware secure channel is established between the server nodes for firmware message passing as part of physical configuration of the server nodes to be merged. A shared secret is securely exchanged via the hardware secure channel between the server nodes establishing an initial authentication value shared among all server nodes. All server nodes confirm common security configuration settings and exchange TPM log and platform configuration register (PCR) data to establish common history for future attestation requirements, enabling dynamic changing the server nodes and concurrently adding and removing nodes.
    Type: Application
    Filed: August 21, 2018
    Publication date: February 27, 2020
    Inventors: Timothy R. Block, Elaine R. Palmer, Kenneth A. Goldman, William E. Hall, Hugo M. Krawczyk, David D. Sanner, Christopher J. Engel, Peter A. Sandon, Alwood P. Williams, III
  • Patent number: 10467111
    Abstract: A method, system and computer program product are provided for implementing cable failover in multiple cable Peripheral Component Interconnect Express (PCIE) IO interconnections to an external IO enclosure. System firmware is provided for implementing health check functions for the PCIE IO interconnections to identify a faulted low byte cable. A cable failover mechanism recovers a PCI link to the external IO enclosure. A multiplexer logic is provided between the PCIE host bridge (PHB) and the cable connected to the IO enclosure to perform a full lane reversal of the PCIE lanes.
    Type: Grant
    Filed: November 19, 2017
    Date of Patent: November 5, 2019
    Assignee: International Business Machines Corporation
    Inventors: Jesse P. Arroyo, Christopher J. Engel, Kaveh Naderi, James E. Smith
  • Patent number: 10467110
    Abstract: A method, system and computer program product are provided for implementing cable failover in multiple cable Peripheral Component Interconnect Express (PCIE) IO interconnections to an external IO enclosure. System firmware is provided for implementing health check functions for the PCIE IO interconnections to identify a faulted low byte cable. A cable failover mechanism recovers a PCI link to the external IO enclosure. A multiplexer logic is provided between the PCIE host bridge (PHB) and the cable connected to the IO enclosure to perform a full lane reversal of the PCIE lanes.
    Type: Grant
    Filed: November 19, 2017
    Date of Patent: November 5, 2019
    Assignee: International Business Machines Corporation
    Inventors: Jesse P. Arroyo, Christopher J. Engel, Kaveh Naderi, James E. Smith
  • Publication number: 20190285665
    Abstract: A method of probing printed circuit boards that includes providing a circuit board design including a plurality of probe points, and selecting a probe point including a location ink from the plurality of probe points in the circuit board design to be probed on a physical printed circuit board design. The method continues with probing at least one probe point of the plurality of probe points with a probe that activates the location ink. Activation of the location ink by the probe indicates the selected probe point including the locating ink.
    Type: Application
    Filed: June 7, 2019
    Publication date: September 19, 2019
    Inventors: Jason T. Albert, Matthew S. Doyle, Christopher J. Engel, Kahn C. Evans, Steven B. Janssen, Matt K. Light
  • Publication number: 20190243792
    Abstract: An approach is provided in which an information handling system detects a reduced capacity on a PCIe link that interfaces a host system to a PCIe I/O expansion drawer over a first/second physical cable. The information handling system verifies a first/second connection to a first/second connector on the PCIe I/O expansion drawer, receives a first/second set of vital product data over the first/second physical cable, and determines that the first physical cable and the second physical cable are connected to the same PCIe I/O expansion drawer based on analyzing the first/second set of vital product data. The information handling system then suspends operation of one or more components corresponding to the PCIe link and trains the PCIe link to an increased capacity. In turn, the information handling system resumes operation of the one or more components and restores the PCIe link to the increased capacity.
    Type: Application
    Filed: April 18, 2019
    Publication date: August 8, 2019
    Inventors: Curtis S. Eide, Christopher J. Engel, Aditya Saripalli
  • Patent number: 10372649
    Abstract: An approach is provided in which an information handling system suspends operation of one or more components corresponding to a PCIe link that is operating at a reduced capacity. The information handling system then trains the PCIe link to an increased capacity while the one or more components are suspended in operation. In turn, the information handling system resumes operation of the one or more components and restores the PCIe link to the increased capacity.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: August 6, 2019
    Assignee: International Business Machines Corporation
    Inventors: Curtis S. Eide, Christopher J. Engel, Aditya Saripalli
  • Patent number: 10371718
    Abstract: A method of probing printed circuit boards that includes providing a circuit board design including a plurality of probe points, and selecting a probe point including a location ink from the plurality of probe points in the circuit board design to be probed on a physical printed circuit board design. The method continues with probing at least one probe point of the plurality of probe points with a probe that activates the location ink. Activation of the location ink by the probe indicates the selected probe point including the locating ink.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: August 6, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Jason T. Albert, Matthew S. Doyle, Christopher J. Engel, Kahn C. Evans, Steven B. Janssen, Matt K. Light
  • Patent number: 10108575
    Abstract: An approach is provided in which a host system receives a request to power down a selected I/O module located in a PCIe I/O expansion drawer. The host system identifies at least one cable card located in the host system that corresponds to the selected I/O module and transmits at least one set of sideband signals to the PCIe I/O expansion drawer through at least one set of PCIe cable links. The host system, in turn, inhibits the transmission of the at least one set of sideband signals to power down the selected I/O module.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: October 23, 2018
    Assignee: International Business Machines Corporation
    Inventors: Curtis S. Eide, Christopher J. Engel, Kaveh Naderi, Matthew S. Spinler
  • Patent number: 10073751
    Abstract: A method for determining cable connections identifies a plurality of cables connected to a link included in a first device. The method identifies a first cable connected to the link included in the first device. The method determines that a second cable connected to is connected to a link included in a second device The method further determines that only one of an inbound and an outbound channel of a signaling lane included in the first cable is operable. The method utilizes a second cable to perform one of disabling signal transmission or detecting loss of signal on the operable channel. The method enables and disables signal transmission on the operable channel to determine that the first cable is connected to the link included in the remote device.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: September 11, 2018
    Assignee: International Business Machines Corporation
    Inventors: Jesse P. Arroyo, Christopher J. Engel, Kaveh Naderi
  • Patent number: 9985876
    Abstract: A method and a system for enabling communications on a signaling link include a first and a second device interconnected by the signaling link. The first device performs the method to acquire information from the second device. Based on the information acquired the first device determines to enable the signaling link for operational communications between the first device and the second device. A computer programming product instructs a computer to perform the method.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: May 29, 2018
    Assignee: International Business Machines Corporation
    Inventors: Jesse P. Arroyo, Christopher J. Engel, Kaveh Naderi
  • Publication number: 20180136255
    Abstract: A method of probing printed circuit boards that includes providing a circuit board design including a plurality of probe points, and selecting a probe point including a location ink from the plurality of probe points in the circuit board design to be probed on a physical printed circuit board design. The method continues with probing at least one probe point of the plurality of probe points with a probe that activates the location ink. Activation of the location ink by the probe indicates the selected probe point including the locating ink.
    Type: Application
    Filed: November 14, 2016
    Publication date: May 17, 2018
    Inventors: Jason T. Albert, Matthew S. Doyle, Christopher J. Engel, Kahn C. Evans, Steven B. Janssen, Matt K. Light
  • Publication number: 20180121290
    Abstract: An approach is provided in which an information handling system suspends operation of one or more components corresponding to a PCIe link that is operating at a reduced capacity. The information handling system then trains the PCIe link to an increased capacity while the one or more components are suspended in operation. In turn, the information handling system resumes operation of the one or more components and restores the PCIe link to the increased capacity.
    Type: Application
    Filed: November 3, 2016
    Publication date: May 3, 2018
    Inventors: Curtis S. Eide, Christopher J. Engel, Aditya Saripalli
  • Publication number: 20180101453
    Abstract: A method, system and computer program product are provided for implementing cable failover in multiple cable Peripheral Component Interconnect Express (PCIE) IO interconnections to an external IO enclosure. System firmware is provided for implementing health check functions for the PCIE IO interconnections to identify a faulted low byte cable. A cable failover mechanism recovers a PCI link to the external IO enclosure. A multiplexer logic is provided between the PCIE host bridge (PHB) and the cable connected to the IO enclosure to perform a full lane reversal of the PCIE lanes.
    Type: Application
    Filed: November 19, 2017
    Publication date: April 12, 2018
    Inventors: Jesse P. Arroyo, Christopher J. Engel, Kaveh Naderi, James E. Smith