Patents by Inventor Robert J. Christopher
Robert J. Christopher 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).
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Patent number: 9436485Abstract: Methods, apparatuses, and computer program products are provided for synchronization of data between an electronic mobile device and an electronic computing dockstation. Embodiments include detecting, by the dockstation, completion of a docking procedure connecting the mobile device to the dockstation; identifying, by the dockstation, applications that are open on the mobile device; opening, by the dockstation, the identified applications on the dockstation; identifying, by the dockstation, files that are open on the mobile device; syncing, by the dockstation, the identified files with corresponding files within the dockstation, including updating an existing file within the dockstation; and opening on the dockstation, by the dockstation, the synced files with the open applications on the dockstation.Type: GrantFiled: June 28, 2012Date of Patent: September 6, 2016Assignee: International Business Machines CorporationInventors: William T. Byrne, Robert J. Christopher, Paul D. Kangas, Daniel M. Ranck
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Patent number: 9436484Abstract: Methods, apparatuses, and computer program products are provided for synchronization of data between an electronic mobile device and an electronic computing dockstation. Embodiments include detecting, by the dockstation, completion of a docking procedure connecting the mobile device to the dockstation; identifying, by the dockstation, applications that are open on the mobile device; opening, by the dockstation, the identified applications on the dockstation; identifying, by the dockstation, files that are open on the mobile device; syncing, by the dockstation, the identified files with corresponding files within the dockstation, including updating an existing file within the dockstation; and opening on the dockstation, by the dockstation, the synced files with the open applications on the dockstation.Type: GrantFiled: August 9, 2011Date of Patent: September 6, 2016Assignee: International Business Machines CorporationInventors: William T. Byrne, Robert J. Christopher, Paul D. Kangas, Daniel M. Ranck
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Patent number: 8595682Abstract: Phase compensation in a differential pair of transmission lines, including: identifying, by a phase compensation module, a plurality of direction changes in the differential pair of transmission lines; determining, by the phase compensation module for each direction change in the differential pair of transmission lines, a direction change angle; and determining, by the phase compensation module for each direction change in the differential pair of transmission lines, the geometry of one or more phase correction humps to include in one transmission line of the differential pair of transmission lines in dependence upon the direction change angle.Type: GrantFiled: December 19, 2011Date of Patent: November 26, 2013Assignee: International Business Machines CorporationInventors: William T. Byrne, Robert J. Christopher, Paul D. Kangas, Pravin S. Patel, Daniel M. Ranck
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Publication number: 20130159959Abstract: Phase compensation in a differential pair of transmission lines, including: identifying, by a phase compensation module, a plurality of direction changes in the differential pair of transmission lines; determining, by the phase compensation module for each direction change in the differential pair of transmission lines, a direction change angle; and determining, by the phase compensation module for each direction change in the differential pair of transmission lines, the geometry of one or more phase correction humps to include in one transmission line of the differential pair of transmission lines in dependence upon the direction change angle.Type: ApplicationFiled: December 19, 2011Publication date: June 20, 2013Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: William T. Byrne, Robert J. Christopher, Paul D. Kangas, Pravin S. Patel, Daniel M. Ranck
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Publication number: 20130097577Abstract: Methods, apparatus, and products for impedance compensation for a differential pair of conductive paths, including: determining the differential impedance and conductor geometry for the differential pair of conductive paths; determining the path length differential between the conductive paths in the differential pair of conductive paths; determining a centerline path to follow for a shorter conductive path in the differential pair of conductive paths, wherein the centerline path lengths the shorter conductive path such that the length of each conductive path in the differential pair of conductive paths is identical within a predetermined threshold; determining a number of subdivisions of one or more serpentine segments on one of the conductive paths in the differential pair; and determining, in dependence upon the differential impedance at each of the subdivisions of the one or more serpentine segments, a serpentine segment path width for the serpentine segment.Type: ApplicationFiled: October 18, 2011Publication date: April 18, 2013Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: William T. Byrne, Robert J. Christopher, Paul D. Kangas, Pravin S. Patel, Daniel M. Ranck
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Patent number: 8390393Abstract: Embodiments of the present invention address deficiencies of the art in respect to via structure utilization in a PCB design and provide a novel and non-obvious method, system and computer program product for impedance discontinuity remediation for via stubs and connectors in a PCB. In one embodiment a method for impedance discontinuity remediation in a PCB can be provided. The method can include configuring a pre-distortion filter to negate an impedance discontinuity in an electrical signal caused by a transmission line with one of a via stub or a connector. The method further can include pre-distortion filtering an electrical signal before transmitting the electrical signal over the transmission line. Finally, the method can include transmitting the pre-distortion filtered electrical signal over the transmission line.Type: GrantFiled: September 4, 2012Date of Patent: March 5, 2013Assignee: International Business Machines CorporationInventors: Justin P. Bandholz, Moises Cases, Robert J. Christopher, Daniel de Araujo, Bradley D. Herrman, Erdem Matoglu, Bhyrav M. Mutnury, Pravin S. Patel, Nam H. Pham
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Publication number: 20130042042Abstract: Methods, apparatuses, and computer program products are provided for synchronization of data between an electronic mobile device and an electronic computing dockstation. Embodiments include detecting, by the dockstation, completion of a docking procedure connecting the mobile device to the dockstation; identifying, by the dockstation, applications that are open on the mobile device; opening, by the dockstation, the identified applications on the dockstation; identifying, by the dockstation, files that are open on the mobile device; syncing, by the dockstation, the identified files with corresponding files within the dockstation, including updating an existing file within the dockstation; and opening on the dockstation, by the dockstation, the synced files with the open applications on the dockstation.Type: ApplicationFiled: August 9, 2011Publication date: February 14, 2013Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: William T. Byrne, Robert J. Christopher, Paul D. Kangas, Daniel M. Ranck
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Publication number: 20130042035Abstract: Methods, apparatuses, and computer program products are provided for synchronization of data between an electronic mobile device and an electronic computing dockstation. Embodiments include detecting, by the dockstation, completion of a docking procedure connecting the mobile device to the dockstation; identifying, by the dockstation, applications that are open on the mobile device; opening, by the dockstation, the identified applications on the dockstation; identifying, by the dockstation, files that are open on the mobile device; syncing, by the dockstation, the identified files with corresponding files within the dockstation, including updating an existing file within the dockstation; and opening on the dockstation, by the dockstation, the synced files with the open applications on the dockstation.Type: ApplicationFiled: June 28, 2012Publication date: February 14, 2013Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: William T. Byrne, Robert J. Christopher, Paul D. Kangas, Daniel M. Ranck
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Publication number: 20120327622Abstract: Embodiments of the present invention address deficiencies of the art in respect to via structure utilization in a PCB design and provide a novel and non-obvious method, system and computer program product for impedance discontinuity remediation for via stubs and connectors in a PCB. In one embodiment a method for impedance discontinuity remediation in a PCB can be provided. The method can include configuring a pre-distortion filter to negate an impedance discontinuity in an electrical signal caused by a transmission line with one of a via stub or a connector. The method further can include pre-distortion filtering an electrical signal before transmitting the electrical signal over the transmission line. Finally, the method can include transmitting the pre-distortion filtered electrical signal over the transmission line.Type: ApplicationFiled: September 4, 2012Publication date: December 27, 2012Applicant: International Business Machines CorporationInventors: Justin P. Bandholz, Moises Cases, Robert J. Christopher, Daniel N. de Araujo, Bradley D. Herrman, Erdem Matoglu, Bhyrav M. Mutnury, Pravin S. Patel, Nam H. Pham
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Patent number: 8289101Abstract: Embodiments of the present invention address deficiencies of the art in respect to via structure utilization in a PCB design and provide a novel and non-obvious method, system and computer program product for impedance discontinuity remediation for via stubs and connectors in a PCB. In one embodiment a method for impedance discontinuity remediation in a PCB can be provided. The method can include configuring a pre-distortion filter to negate an impedance discontinuity in an electrical signal caused by a transmission line with one of a via stub or a connector. The method further can include pre-distortion filtering an electrical signal before transmitting the electrical signal over the transmission line. Finally, the method can include transmitting the pre-distortion filtered electrical signal over the transmission line.Type: GrantFiled: April 19, 2007Date of Patent: October 16, 2012Assignee: International Business Machines CorporationInventors: Justin P. Bandholz, Moises Cases, Robert J. Christopher, Daniel N. de Araujo, Bradley D. Herrman, Erdem Matoglu, Bhyrav M. Mutnury, Pravin S. Patel, Nam H. Pham
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Patent number: 8185682Abstract: A system for allowing a designer to implement Universal Serial Bus (USB) 2.0 in topologies not anticipated by a USB 2.0 specification and with reduced channel losses, the system comprising: a bus channel having a plurality of electrical elements; and a boost circuit connected at a predetermined location on the bus channel; a plurality of USB signals transmitted through the system; wherein edges of the plurality of USB signals are boosted without impacting the bi-directional nature of the bus channel.Type: GrantFiled: June 1, 2007Date of Patent: May 22, 2012Assignee: International Business Machines CorporationInventors: Justin P. Bandholz, Robert J. Christopher, Joseph M. Jacobs, Pravin Patel
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Publication number: 20080301347Abstract: A system for allowing a designer to implement Universal Serial Bus (USB) 2.0 in topologies not anticipated by a USB 2.0 specification and with reduced channel losses, the system comprising: a bus channel having a plurality of electrical elements; and a boost circuit connected at a predetermined location on the bus channel; a plurality of USB signals transmitted through the system; wherein edges of the plurality of USB signals are boosted without impacting the bi-directional nature of the bus channel.Type: ApplicationFiled: June 1, 2007Publication date: December 4, 2008Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Justin P. Bandholz, Robert J. Christopher, Joseph M. Jacobs, Pravin Patel
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Publication number: 20080261451Abstract: Embodiments of the present invention address deficiencies of the art in respect to via structure utilization in a PCB design and provide a novel and non-obvious method, system and computer program product for impedance discontinuity remediation for via stubs and connectors in a PCB. In one embodiment a method for impedance discontinuity remediation in a PCB can be provided. The method can include configuring a pre-distortion filter to negate an impedance discontinuity in an electrical signal caused by a transmission line with one of a via stub or a connector. The method further can include pre-distortion filtering an electrical signal before transmitting the electrical signal over the transmission line. Finally, the method can include transmitting the pre-distortion filtered electrical signal over the transmission line.Type: ApplicationFiled: April 19, 2007Publication date: October 23, 2008Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Justin P. Bandholz, Moises Cases, Robert J. Christopher, Daniel N. de Araujo, Bradley D. Herrman, Erdem Matoglu, Bhyrav M. Mutnury, Pravin S. Patel, Nam H. Pham
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Publication number: 20040257763Abstract: A split backplane is used in a network server, thereby permitting the use of more than one channel to connect a server motherboard to one or more hard disc drives. A master card ‘A’ is plugged into each backplane. In turn, one or more additional cards may be stacked parallel to the master card, being joined thereto by a mezzanine connector. The additional card can be another master card ‘A’ or a slave card ‘B’ that performs subordinate functions. Each card is coupled to one or more hard disc drives through a multiple pin connector to transmit SCSI, or similar signals. The ‘A’ and ‘B’ cards are arranged generally parallel with the planar surfaces of the disc drives so as to improve the flow of cooling air as it is drawn through the enclosure or mounting rack past the disc drives.Type: ApplicationFiled: June 17, 2003Publication date: December 23, 2004Applicant: International Business Machines CorporationInventors: Mark E. Andresen, Michael G. Brinkman, Robert J. Christopher, John G. Gundlach
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Patent number: 5220211Abstract: A high-speed data transport system for use in computers, switches, microprocessors or the like includes a low impedance differential bus and a plurality of transceivers connected to the bus. Each of the transceivers is provided with a driver circuit which places data onto the bus and a receiver for accepting data from the bus. The driver includes a pseudo-differential current driving circuit arrangement which sinks current from only one side of the bus while the other side of the differential bus is undisturbed. The receiver includes a differential comparator biased to a preferred output voltage level.Type: GrantFiled: October 28, 1991Date of Patent: June 15, 1993Assignee: International Business Machines CorporationInventors: Robert J. Christopher, Donald J. DaCosta, Joseph C. Diepenbrock, Phillip R. Epley
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Patent number: 4516266Abstract: An apparatus for carrying out, at frame rates, entity detection and verification on bit-mapped raster graphic systems by providing an entity identification bit sequence with each feature of the picture displayed. The apparatus includes a display coupled to a store for input data, serially sending items of data to the display, together with means for identifying the items of data so supplied, such that all the items of data forming a selected feature, i.e., line, circle, background or etc. of the display can be identified, and stored. Comparison and register means are used to drive a modulating means to verify the display of the items of data, forming the selected feature, when a correlation occurs between the selected feature and the feature formed by the items of data sent from the store. Verification may be emphasizing, i.e., brightening, flashing, color change, etc. the feature selected.Type: GrantFiled: December 17, 1982Date of Patent: May 7, 1985Assignee: International Business Machines CorporationInventors: Robert J. Christopher, Robert F. Walker
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Patent number: 4177433Abstract: A high voltage/high current circuitry includes a push-pull voltage amplification stage connected in tandem with a parallel connected push-pull current amplification stage. For the voltage amplification stage a pair of bipolar operational amplifiers are connected in parallel and operate in a push-pull manner. A pair of switching means are positioned at the output of each of the bipolar operational amplifiers while the outputs of the amplifiers are connected to the inputs through a current gain regulating means, an isolation means and a voltage divider means.Type: GrantFiled: November 20, 1978Date of Patent: December 4, 1979Assignee: International Business Machines CorporationInventors: Robert J. Christopher, Robert L. Schaaf