Patents by Inventor Matthew K. Herndon

Matthew K. Herndon 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: 8047880
    Abstract: Connectors having a smaller profile. These connectors are useful as a reduced form factor DisplayPort connector. Keys on a receptacle are used to indicate when an insert is fully engaged. Edges of the receptacle and insert are chamfered in such a way as to prevent the pins of the connector from being damaged when an improper insertion is attempted. User experience is also enhanced by the use of one or more latches. As the connector is inserted, the latch provides resistance that builds until the connector is inserted a certain distance, after which the latch enters a cutout portion of the insert thus releasing the pressure and letting the user know the connection has been made. Fingers are employed to provide mechanical stability and electrical connection between receptacle and insert.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: November 1, 2011
    Assignee: Apple Inc.
    Inventors: Stewart Shannon Fields, Matthew K. Herndon, Min Chul Kim, Ron Larson, Richard J. Middlehurst, Anilkumar R. Pannikkat, Glenn Wheelock, Colin Whitby-Strevens
  • Publication number: 20110039443
    Abstract: Connectors having a smaller profile. These connectors are useful as a reduced form factor DisplayPort connector. Keys on a receptacle are used to indicate when an insert is fully engaged. Edges of the receptacle and insert are chamfered in such a way as to prevent the pins of the connector from being damaged when an improper insertion is attempted. User experience is also enhanced by the use of one or more latches. As the connector is inserted, the latch provides resistance that builds until the connector is inserted a certain distance, after which the latch enters a cutout portion of the insert thus releasing the pressure and letting the user know the connection has been made. Fingers are employed to provide mechanical stability and electrical connection between receptacle and insert.
    Type: Application
    Filed: October 22, 2010
    Publication date: February 17, 2011
    Applicant: Apple Inc.
    Inventors: Stewart Shannon Fields, Matthew K. Herndon, Min Chul Kim, Ron Larson, Richard J. Middlehurst, Anilkumar R. Pannikkat, Glenn Wheelock, Colin Whitby-Strevens
  • Patent number: 7841910
    Abstract: Connectors having a smaller profile. These connectors are useful as a reduced form factor DisplayPort connector. Keys on a receptacle are used to indicate when an insert is fully engaged. Edges of the receptacle and insert are chamfered in such a way as to prevent the pins of the connector from being damaged when an improper insertion is attempted. User experience is also enhanced by the use of one or more latches. As the connector is inserted, the latch provides resistance that builds until the connector is inserted a certain distance, after which the latch enters a cutout portion of the insert thus releasing the pressure and letting the user know the connection has been made. Fingers are employed to provide mechanical stability and electrical connection between receptacle and insert.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: November 30, 2010
    Assignee: Apple Inc.
    Inventors: Stewart Shannon Fields, Matthew K. Herndon, Min Chul Kim, Ron Larson, Richard J. Middlehurst, Anilkumar R. Pannikkat, Glenn Wheelock, Colin Whitby-Strevens
  • Patent number: 7639746
    Abstract: A system that transmits signals through a communication channel. During operation, the system receives a sequence of bits for transmission through the communication channel. While transmitting a given bit, the system determines if the given bit has the same state as the previously transmitted bit. If so, the system uses a voltage-mode driver to drive a signal through the communication channel. Otherwise, the system uses a current source coupled to the voltage-mode driver to boost the drive-level of the voltage-mode driver. Note that the current source supplies a current to the communication channel without changing the impedance of the voltage-mode driver. In this way, the present invention compensates for frequency dependant losses in the communication channel without sacrificing impedance matching and without substantially increasing power consumption.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: December 29, 2009
    Assignee: Apple Inc.
    Inventors: William P. Cornelius, Matthew K. Herndon, Ronald K. Larson
  • Publication number: 20090117754
    Abstract: Connectors having a smaller profile. These connectors are useful as a reduced form factor DisplayPort connector. Keys on a receptacle are used to indicate when an insert is fully engaged. Edges of the receptacle and insert are chamfered in such a way as to prevent the pins of the connector from being damaged when an improper insertion is attempted. User experience is also enhanced by the use of one or more latches. As the connector is inserted, the latch provides resistance that builds until the connector is inserted a certain distance, after which the latch enters a cutout portion of the insert thus releasing the pressure and letting the user know the connection has been made. Fingers are employed to provide mechanical stability and electrical connection between receptacle and insert.
    Type: Application
    Filed: September 26, 2008
    Publication date: May 7, 2009
    Applicant: Apple Inc.
    Inventors: Stewart Shannon FIELDS, Matthew K. Herndon, Min Chul Kim, Ron Larson, Richard J. Middlehurst, Anilkumar R. Pannikkat, Glenn Wheelock, Colin Whitby-Strevens