Patents by Inventor Andrew H. Dickson

Andrew H. Dickson 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: 7238893
    Abstract: A resilient, electrically conductive EMI gasket is disposed between two jaws. A cam-lever or other actuator is operably linked to the jaws. The cam-lever can be used to drive the jaws closer together, thereby squeezing the gasket and causing a portion of the gasket to protrude, preferably beyond an edge of at least one of the jaws. The protruding portion of the gasket contacts a mating surface of an opening, through which a device was installed, or a mating surface on an adjacent device. This contact seals the space between the EMI gasket mechanism and the mating surfaces, i.e. the contact closes a gap and thus maintains a continuous EMI shield therebetween. The gap is closed against passage of EMI radiation without relying on device insertion force to cause the EMI gasket to adequately contact the mating surface. Alternatively, an inflatable resilient EMI gasket is in fluid communication with a pump, and an actuator is operably linked to the pump.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: July 3, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: James Hensley, Andrew H. Dickson, Andrew M. Cherniski
  • Patent number: 7215536
    Abstract: An electromagnetic shield assembly is disclosed. In one embodiment, the present invention is comprised of a frame. The present embodiment is further comprised of an electromagnetic gasket surrounding the frame. The present embodiment is also comprised of an actuating element coupled with the electromagnetic gasket. The actuating element is adapted to retract and deploy a portion of the electromagnetic gasket with respect to the frame to provide an adjustable electromagnetic interference (EMI) shield.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: May 8, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: James D. Hensley, Andrew H. Dickson
  • Patent number: 6982378
    Abstract: An EMI reduction system comprises a conductor and a lossy coating encasing the conductor and comprising one or more lossy layers. The one or more lossy layers further comprise a binder and a lossy material mixed into the binder. The lossy material is selected to attenuate electromagnetic interference frequencies in a narrow or moderate band.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: January 3, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Andrew H. Dickson
  • Patent number: 6925409
    Abstract: A system method for determining temperature anomalies that would affect the proper operation of a computer and, upon receipt of a determined temperature anomaly, causing certain data to be saved within a storage device in a file location appropriate for such data.
    Type: Grant
    Filed: October 3, 2002
    Date of Patent: August 2, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kevin H. Smith, Andrew H. Dickson
  • Patent number: 6879931
    Abstract: A system and method for determining motion anomalies that would affect the proper operation of a computer and, upon receipt of a determined high motion anomaly, causing certain data to be saved within a storage device in a file location appropriate for such data.
    Type: Grant
    Filed: October 3, 2002
    Date of Patent: April 12, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kevin H. Smith, Andrew H. Dickson
  • Publication number: 20040173368
    Abstract: An EMI reduction system comprises a conductor and a lossy coating encasing the conductor and comprising one or more lossy layers. The one or more lossy layers further comprise a binder and a lossy material mixed into the binder. The lossy material is selected to attenuate electromagnetic interference frequencies in a narrow or moderate band.
    Type: Application
    Filed: March 7, 2003
    Publication date: September 9, 2004
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventor: Andrew H. Dickson
  • Publication number: 20040120130
    Abstract: An electromagnetic shield assembly is disclosed. In one embodiment, the present invention is comprised of a frame. The present embodiment is further comprised of an electromagnetic gasket surrounding the frame. The present embodiment is also comprised of an actuating element coupled with the electromagnetic gasket. The actuating element is adapted to retract and deploy a portion of the electromagnetic gasket with respect to the frame to provide an adjustable electromagnetic interference (EMI) shield.
    Type: Application
    Filed: December 23, 2002
    Publication date: June 24, 2004
    Inventors: James D. Hensley, Andrew H. Dickson
  • Publication number: 20040068386
    Abstract: A system and method for determining temperature anomalies that would affect the proper operation of a computer and, upon receipt of a determined temperature anomaly, causing certain data to be saved within a storage device in a file location appropriate for such data.
    Type: Application
    Filed: October 3, 2002
    Publication date: April 8, 2004
    Inventors: Kevin H. Smith, Andrew H. Dickson
  • Publication number: 20040068388
    Abstract: A system and method for determining motion anomalies that would affect the proper operation of a computer and, upon receipt of a determined high motion anomaly, causing certain data to be saved within a storage device in a file location appropriate for such data.
    Type: Application
    Filed: October 3, 2002
    Publication date: April 8, 2004
    Inventors: Kevin H. Smith, Andrew H. Dickson
  • Patent number: 6428349
    Abstract: A conductive clip is placed over a component mounted to a printed circuit board (PCB) to form a conductive path between terminals of the component. In one embodiment, a conductive clip is placed over a surface mount technology (SMT) component, with the clip having ends that include a flared portion and a sharp triangular retainment detent. In another embodiment, the clip has a shoe box shape and includes two sides having retainment detents that are disposed to engage an area between an edge of the component and the PCB. In yet another embodiment, the present invention is adapted for use with through hole mounted components having axial leads, with each end of the clip including a slot that engages a lead when the clip is pressed onto the component. The present invention allows a PCB to be designed to support multiple configurations without using DIP switches or headers/jumpers.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: August 6, 2002
    Assignee: Hewlett-Packard Company
    Inventors: Andrew H. Dickson, Wayne A. Foster
  • Patent number: 5694088
    Abstract: A phase locked loop including an in-phase detector (IPD), a quadrature phase detector (QPD), a frequency detector (FD), a squelch, a filter, and a voltage controlled oscillator (VCO). The in-phase detector has an IPD sample input, an IPD input, and an IPD output, where the IPD sample input is coupled to a data input. The quadrature phase detector has a QPD sample input, a QPD input, and a QPD output, where the QPD sample input is coupled to the data input. The frequency detector has a first FD input coupled to the IPD output, a second FD input coupled to the QPD output, and a FD output. The squelch has a squelch input, an enable input, and a squelch output where the squelch input is coupled to the IPD output and the squelch enable is coupled to the FD output. The filter has a filter input coupled to the squelch output and a filter output. The voltage controlled oscillator has a VCO input coupled to the filter output, a VCO in-phase output, and a VCO quadrature output.
    Type: Grant
    Filed: July 8, 1996
    Date of Patent: December 2, 1997
    Assignee: Maxim Integrated Products, Inc.
    Inventor: Andrew H. Dickson