Patents by Inventor David A. Holt

David A. Holt 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: 8559910
    Abstract: The described method and system provide for over-the-air configuration of a telematics-equipped vehicle by wireless carriers and telematics service providers (TSPs). Regardless of whether a telematics-equipped vehicle has been provisioned for cellular service or not, the TSP and wireless carrier may control undesirable location updating from the vehicle, for example, by setting certain triggers or conditions upon the telematics unit before processing location updates provided by the telematics unit. These triggers or conditions may also be programmed into the telematics unit, whether through an OTA configuration session, or pre-loaded during manufacture. The TSP or wireless carrier may conduct OTA configuration sessions with the telematics unit to provision the telematics unit for cellular service, or provide the telematics unit with software or firmware updates.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: October 15, 2013
    Assignee: General Motors LLC.
    Inventors: Ki Hak Yi, Sethu K. Madhavan, Lawrence D. Cepuran, David A. Holt
  • Patent number: 8442528
    Abstract: A system and method of managing communications with a vehicle telematics unit includes determining that a data transmission to a vehicle telematics unit over a wireless carrier system has failed; automatically performing a network registration check with the wireless carrier system to determine the registration status of the vehicle telematics unit based on the data transmission failure; and deciding whether to re-transmit the data to the vehicle based on the results of the network registration check.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: May 14, 2013
    Assignee: General Motors LLC
    Inventors: Laura R. Chmielewski, David A. Holt, Delano K. Kado, Jong Seok Baik, Matthew R. Mannikka, Brian A. Day
  • Patent number: 8417212
    Abstract: Methods for providing emergency service to a mobile vehicle are disclosed herein. One method involves monitoring a network country code broadcast from a communications network provider and comparing the network country code with a list of country codes stored in the telematics unit. This method further includes determining where to direct an emergency call by the telematics unit based on the comparing. Another method involves notifying a telematics service provider of a need for emergency services and, in response to a denial for the services, monitoring the network country code broadcast and comparing the network country code with the list of country codes to determine where to direct the emergency call. Yet another method involves notifying a telematics service provider of a need for emergency services and, in response to a denial for the services, automatically notifying another service provider of the same.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: April 9, 2013
    Assignee: General Motors LLC
    Inventors: Lawrence D. Cepuran, Matthew G. Przybylski, David A. Holt
  • Publication number: 20120289166
    Abstract: A system and method of managing communications with a vehicle telematics unit includes determining that a data transmission to a vehicle telematics unit over a wireless carrier system has failed; automatically performing a network registration check with the wireless carrier system to determine the registration status of the vehicle telematics unit based on the data transmission failure; and deciding whether to re-transmit the data to the vehicle based on the results of the network registration check.
    Type: Application
    Filed: May 11, 2011
    Publication date: November 15, 2012
    Applicant: GENERAL MOTORS LLC
    Inventors: Laura R. Chmielewski, David A. Holt, Delano K. Kado, Jong Seok Baik, Matthew R. Mannikka, Brian A. Day
  • Publication number: 20120258725
    Abstract: The described method and system provide for over-the-air configuration of a telematics-equipped vehicle by wireless carriers and telematics service providers (TSPs). Regardless of whether a telematics-equipped vehicle has been provisioned for cellular service or not, the TSP and wireless carrier may control undesirable location updating from the vehicle, for example, by setting certain triggers or conditions upon the telematics unit before processing location updates provided by the telematics unit. These triggers or conditions may also be programmed into the telematics unit, whether through an OTA configuration session, or pre-loaded during manufacture. The TSP or wireless carrier may conduct OTA configuration sessions with the telematics unit to provision the telematics unit for cellular service, or provide the telematics unit with software or firmware updates.
    Type: Application
    Filed: April 5, 2011
    Publication date: October 11, 2012
    Applicant: General Motors LLC
    Inventors: Ki Hak Yi, Sethu K. Madhavan, Lawrence D. Cepuran, David A. Holt
  • Patent number: 8260345
    Abstract: An automated method for remotely changing the mobile number (MDN or MIN) of a wireless communications device, such as a vehicle communications device capable of making hands-free calls. Generally, some wireless carriers do not allow multiple mobile numbers to be simultaneously activated to a single wireless communications device. Therefore, when a mobile number change request is made, the automated method determines what type of process is most appropriate for that change: an indirect change process that uses at least three mobile numbers (current, intermediate, and target numbers) and addresses the above-mentioned wireless carrier limitations, or a direct change process that uses only two mobile numbers (current and target numbers). In either case, a wireless data link is established between a call center and the vehicle communications device so that the remote number change can be performed.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: September 4, 2012
    Assignee: General Motors LLC
    Inventors: Laura R Chmielewski, Garett Gould, Kevin Krause, David Holt
  • Publication number: 20120196564
    Abstract: The described invention provides a method and system for allowing subscribers of a telematics service provider (TSP) to make hands-free phone calls within their vehicles through a telematics unit over a network or hardware-based pre-pay system, wherein the telematics unit or a wireless network provider associated with the TSP controls the ingoing and outgoing hands-free calling (HFC) processes. The wireless network provider, through its system at a remote call center or through the telematics unit, may determine whether the subscriber has subscribed to the TSP's HFC service, whether the subscriber has a sufficient remaining balance to initiate, receive or continue a call, and whether a user of the telematics unit is “roaming.” When a user attempts to make or receive a call through the telematics unit, the wireless network provider or the telematics unit may handle the incoming or outgoing call processing, and may further provide subscriber account balance notifications to the user.
    Type: Application
    Filed: January 27, 2011
    Publication date: August 2, 2012
    Applicant: GENERAL MOTORS LLC
    Inventors: Ki Hak Yi, Sethu K. Madhavan, Lawrence D. Cepuran, David A. Holt
  • Publication number: 20110287733
    Abstract: Methods for providing emergency service to a mobile vehicle are disclosed herein. One method involves monitoring a network country code broadcast from a communications network provider and comparing the network country code with a list of country codes stored in the telematics unit. This method further includes determining where to direct an emergency call by the telematics unit based on the comparing. Another method involves notifying a telematics service provider of a need for emergency services and, in response to a denial for the services, monitoring the network country code broadcast and comparing the network country code with the list of country codes to determine where to direct the emergency call. Yet another method involves notifying a telematics service provider of a need for emergency services and, in response to a denial for the services, automatically notifying another service provider of the same.
    Type: Application
    Filed: May 18, 2010
    Publication date: November 24, 2011
    Applicant: GENERAL MOTORS LLC
    Inventors: Lawrence D. Cepuran, Matthew G. Przybylski, David A. Holt
  • Patent number: 8041384
    Abstract: A method and apparatus for assigning a mobile dialing number (MDN) to a wireless mobile communication device (MCD), for providing local call access to the MCD from a base address for the MCD, by first selecting a wireless rate center encompassing the base address and having an MDN providing local call access to the MCD from the base address for the MCD, and then assigning the MDN to the MCD, for providing local calling access to the MCD from the base address for the MCD. A database defines geographic boundaries of a plurality of wireless rate centers, including the wireless rate center encompassing the base address and having the MDN providing local call access to the MCD from the base address.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: October 18, 2011
    Assignee: General Motors LLC
    Inventors: William E. Italia, David A. Holt, Garett W. Gould, Robert T. Weisbarth
  • Publication number: 20070254639
    Abstract: An automated method for remotely changing the mobile number (MDN or MIN) of a wireless communications device, such as a vehicle communications device capable of making hands-free calls. Generally, some wireless carriers do not allow multiple mobile numbers to be simultaneously activated to a single wireless communications device. Therefore, when a mobile number change request is made, the automated method determines what type of process is most appropriate for that change: an indirect change process that uses at least three mobile numbers (current, intermediate, and target numbers) and addresses the above-mentioned wireless carrier limitations, or a direct change process that uses only two mobile numbers (current and target numbers). In either case, a wireless data link is established between a call center and the vehicle communications device so that the remote number change can be performed.
    Type: Application
    Filed: May 1, 2006
    Publication date: November 1, 2007
    Applicant: GENERAL MOTORS CORPORATION
    Inventors: Laura Chmielewski, Garett Gould, Kevin Krause, David Holt
  • Publication number: 20070197408
    Abstract: A base oil having an unexpectedly low dynamic viscosity as measured by ASTM D5133 test method comprises a blend of about 65 to 97.5 wt % of a paraffinic oil having a VI of 130 or greater, a Kv@100° C. of about 3.8 cSt or greater and a pour point of ?15° C. or less and an ester of lubricating viscosity of from about 35 to about 2.5 wt %. The base oil is further characterized as free of added viscosity modifiers.
    Type: Application
    Filed: February 13, 2007
    Publication date: August 23, 2007
    Inventor: David Holt
  • Patent number: 7067745
    Abstract: A rotary safety switch assembly is disclosed in which electrical contacts are movable from a power supply OFF position to a power supply ON position by movement of a rotary member contained within a housing, the electrical contacts comprising first stationary contacts and second movable contacts, and in which the first stationary contacts are carried by a housing part and the second movable contacts are carried by the rotary member and are movable therewith in an arc about said predetermined axis to make and break contact with the first stationary contacts in response to movement of the rotary member by the actuator.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: June 27, 2006
    Assignee: Eja Limited
    Inventor: David Holt
  • Publication number: 20050252751
    Abstract: A rotary safety switch assembly is disclosed in which electrical contacts are movable from a power supply OFF position to a power supply ON position by movement of a rotary member contained within a housing, the electrical contacts comprising first stationary contacts and second movable contacts, and in which the first stationary contacts are carried by a housing part and the second movable contacts are carried by the rotary member and are movable therewith in an arc about said predetermined axis to make and break contact with the first stationary contacts in response to movement of the rotary member by the actuator.
    Type: Application
    Filed: March 31, 2005
    Publication date: November 17, 2005
    Inventor: David Holt
  • Publication number: 20050208934
    Abstract: A method and apparatus for assigning a mobile dialing number (MDN) to a wireless mobile communication device (MCD), for providing local call access to the MCD from a base address for the MCD, by first selecting a wireless rate center encompassing the base address and having an MDN providing local call access to the MCD from the base address for the MCD, and then assigning the MDN to the MCD, for providing local calling access to the MCD from the base address for the MCD. A database defines geographic boundaries of a plurality of wireless rate centers, including the wireless rate center encompassing the base address and having the MDN providing local call access to the MCD from the base address.
    Type: Application
    Filed: March 16, 2004
    Publication date: September 22, 2005
    Inventors: William Italia, David Holt, Garett Gould, Robert Weisbarth
  • Patent number: 6705625
    Abstract: A caster arrangement for cabinets used on access or raised floors of a computer room or the like. The caster arrangement allows for a small, heavy cabinet to be situated on the panels of the access floor without applying concentrated or ultimate loads on the panels that may exceed the design characteristics of the panel and access floor. The caster arrangement allows for at most three casters to apply load to a given panel while the cabinet is being moved or has an arbitrary orientation.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: March 16, 2004
    Assignee: Liebert Corporation
    Inventors: David Holt, Gary A. Reichle
  • Patent number: 6684457
    Abstract: A recessed hinge is disclosed that allows a door to open to an angle greater than 90 degrees. The hinge has a hinge pin with two free ends so that the hinge is also fully reversible, for use either on the right hand or left of an enclosure. The hinge also provides for simplified horizontal adjustment by having oval mounting holes for attaching the hinge to the enclosure, and the hinge provides for vertical adjustment by disposing one or more washers on the free end of the hinge pin. Vertical adjustment of the door as well as door removal may be accomplished without tools.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: February 3, 2004
    Assignee: Liebert Corporation
    Inventor: David Holt
  • Patent number: 6563048
    Abstract: A system of ancillary cabinet for use with an uninterruptible power source (UPS) is disclosed. The ancillary cabinets have modular and reversible features that facilitate the installation of an uninterruptible power supply. The frames for the ancillary cabinets use a galvanized riveted frame design. The frames use pop rivets to allow the units to be shipped flat and assembled easily in the field. The overall size of the ancillary cabinets are consistent with the dimensions of a UPS cabinet. Specifically, the depth and height of the ancillary cabinets match the UPS. Also, the overall cabinet design matches the style, color, and texture of the UPS cabinet. The ancillary cabinets may be bolted to each other and/or the UPS cabinet to form a specific UPS system. The cabinets are serviceable by front access. An inter-cabinet wiring trough (wiring access) in the ancillary cabinets matches up with the UPS.
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: May 13, 2003
    Assignee: Liebert Corporation
    Inventors: David Holt, Kenneth M. Wagner, James K. Martin
  • Patent number: 6486679
    Abstract: A radio frequency bridge, useful for measuring complex values of an unknown impedance or associated complex reflection coefficient and VSWR value, which comprises an rf source, a novel asymmetrical bridge, a measuring device (comprising two logarithmic amplifiers, a difference amplifier and a phase detector), a computing device and a display or interface device. The complex impedance may be any two terminals of a general N-port network not to exclude an antenna with or without feed-line. The invention is more accurate than prior art when measuring complex impedance values having magnitudes from approximately five ohms to an upper value limited only by the dynamic range of the logarithmic amplifiers, normally greater than 4000 ohms. It has the great advantage of maintaining constant measuring accuracy over a wide measuring range and can be designed to operate over very wide bandwidths.
    Type: Grant
    Filed: January 21, 2002
    Date of Patent: November 26, 2002
    Inventor: Kenneth David Holt
  • Publication number: 20020117822
    Abstract: A caster arrangement is disclosed for cabinets used on access or raised floors of a computer room or the like. The caster arrangement allows for a small, heavy cabinet to be situated on the panels of the access floor without applying concentrated or ultimate loads on the panels that may exceed the design characteristics of the panel and access floor. The caster arrangement allows for at most three casters to apply load to a given panel while the cabinet is being moved or has an arbitrary orientation.
    Type: Application
    Filed: October 23, 2001
    Publication date: August 29, 2002
    Inventors: David Holt, Gary A. Reichle
  • Publication number: 20020084089
    Abstract: A system of ancillary cabinet for use with an uninterruptible power source (UPS) is disclosed. The ancillary cabinets have modular and reversible features that facilitate the installation of an uninterruptible power supply. The frames for the ancillary cabinets use a galvanized riveted frame design. The frames use pop rivets to allow the units to be shipped flat and assembled easily in the field. The overall size of the ancillary cabinets are consistent with the dimensions of a UPS cabinet. Specifically, the depth and height of the ancillary cabinets match the UPS. Also, the overall cabinet design matches the style, color, and texture of the UPS cabinet. The ancillary cabinets may be bolted to each other and/or the UPS cabinet to form a specific UPS system. The cabinets are serviceable by front access. An inter-cabinet wiring trough (wiring access) in the ancillary cabinets matches up with the UPS.
    Type: Application
    Filed: October 24, 2001
    Publication date: July 4, 2002
    Inventors: David Holt, Kenneth M. Wagner, James K. Martin