Patents by Inventor Steven L. Brittenham

Steven L. Brittenham 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).

  • Publication number: 20160196839
    Abstract: A system including a magnetic tape processing system that includes a read/write head to write to a top surface of a magnetic tape. The read/write head provides a write head field gradient of at least 40 Oersteds per nanometer at the top surface of the magnetic tape. The magnetic tape processing system and the read/write head provide a track density of greater than 8000 tracks per inch, a bit density of greater than 440 kilo-bits per inch, and an aspect ratio of less than 70.
    Type: Application
    Filed: March 15, 2016
    Publication date: July 7, 2016
    Inventors: Mike Alan Holmberg, Geoff Spratt, Brian Brong, Mike Sharrock, Steven L. Brittenham, Scott A. Swanbeck, Eric Petersen, Lawrence A. Hansen, Paul W. Poorman
  • Patent number: 9336808
    Abstract: A system including a magnetic tape processing system that includes a read/write head to write to a top surface of a magnetic tape. The read/write head provides a write head field gradient of at least 40 Oersteds per nanometer at the top surface of the magnetic tape. The magnetic tape processing system and the read/write head provide a track density of greater than 8000 tracks per inch, a bit density of greater than 440 kilo-bits per inch, and an aspect ratio of less than 70.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: May 10, 2016
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Mike Alan Holmberg, Geoff Spratt, Brian Brong, Mike Sharrock, Steven L. Brittenham, Scott A. Swanbeck, Eric Petersen, Lawrence A. Hansen, Paul W. Poorman
  • Publication number: 20150302879
    Abstract: A system including a magnetic tape processing system that includes a read/write head to write to a top surface of a magnetic tape. The read/write head provides a write head field gradient of at least 40 Oersteds per nanometer at the top surface of the magnetic tape. The magnetic tape processing system and the read/write head provide a track density of greater than 8000 tracks per inch, a bit density of greater than 440 kilo-bits per inch, and an aspect ratio of less than 70.
    Type: Application
    Filed: January 31, 2013
    Publication date: October 22, 2015
    Inventors: Mike Alan HOLMBERG, Geoff SPRATT, Brian BRONG, Mike SHARROCK, Steven L. BRITTENHAM, Scott A. SWANBECK, Eric PETERSEN, Lawrence A. HANSEN, Paul W. POORMAN
  • Patent number: 8570678
    Abstract: Techniques to use a model associating condition of a tape head with tape head usage are described. The tape head is for use in a magnetic tape drive. In examples, a condition of the tape head is determined using a model. In examples, the model fits determined values of the condition parameter.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: October 29, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Brian Brong, Mike Alan Holmberg, Steven L. Brittenham, Michael Anthony Ellis, Saiman Kusin, Geoff Spratt
  • Publication number: 20130128371
    Abstract: Techniques to use a model associating condition of a tape head with tape head usage are described. The tape head is for use in a magnetic tape drive. In examples, a condition of the tape head is determined using a model. In examples, the model fits determined values of the condition parameter.
    Type: Application
    Filed: November 18, 2011
    Publication date: May 23, 2013
    Inventors: BRIAN BRONG, Mike Alan Holmberg, Steven L. Brittenham, Michael Anthony Ellis, Saiman Kusin, Geoff Spratt
  • Patent number: 7480110
    Abstract: A medium dependent write equalization method is disclosed. The method includes identifying a trait of a magnetic medium. A characteristic of a write equalization signal is then defined according to the identified trait of the magnetic medium.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: January 20, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Steven L. Brittenham
  • Patent number: 7301724
    Abstract: Determining an error in position of at least two heads coupled to a piezoelectric material, and changing a potential applied to a piezoelectric material to reduce the error in position of the at least two heads.
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: November 27, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Steven L. Brittenham
  • Patent number: 7251090
    Abstract: A pattern dependent write equalization method is disclosed. The method includes identifying a trait of a data pattern in a stream of write data. A characteristic of a write equalization signal is then defined according to the identified trait for the data pattern.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: July 31, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Steven L Brittenham
  • Patent number: 6457083
    Abstract: A communication channel that is accessible when the product is entirely assembled, but appears to be, and functions like, configuration jumpers to the end user. The communication channel utilizes the terminals of a configuration jumper block as communication paths to an interface device. The terminals of the configuration jumper block may be wired differently depending on the desired function (i.e. send data, receive data, etc.) of the terminals. The configuration information needed by the device is read from the terminals of the configuration block when the communication channel is not active. Switches on the interface device are used to set the configuration information. Configuration jumpers that can be used are the Master, Slave, and Cable Select signals for an ATAPI interface.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: September 24, 2002
    Assignee: Hewlett-Packard Company
    Inventors: Bruce W Schober, Steven L Brittenham, Mark A Rau, William P Proctor
  • Patent number: 6288859
    Abstract: A device for write precompensation of data signals to be recorded on a magnetic medium, has an input for receiving input data signals and an output for supplying the output signals to be recorded, at least a plurality of the signal transitions in these output data signals being delayed with respect to the corresponding signal transitions in the input data signal, the signal path between the input and the output including a series arrangement of a filter circuit and a hysteresis circuit, the hysteresis circuit receiving the output signal of the filter circuit and supplying a binary signal as its output signal. This write precompensation device simply enables allowance to be made for the influence of a large number of preceding symbol values on a transition to be recorded. When the device is combined with a known write compensation device it suffices to use a simple filter.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: September 11, 2001
    Assignee: U.S. Philips Corporation
    Inventors: Johannes W. M. Bergmans, Johannes O. Voorman, Steven L. Brittenham