Patents by Inventor Lawrence J. Tucker

Lawrence J. Tucker 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: 20130021438
    Abstract: The 3D video processing unit combines video feeds from two unsynchronized video sources, such as left and right video cameras, in real-time, to generate a 3D image for display on a video monitor. The processing unit can also optionally receive video data from a third video source and use that data to generate a background image visible on all or a selected portion or portions of the video monitor. An alpha data generator inspects the video data held within respective buffer circuits associated with the left and right channels and generates an alpha data value for each pixel. These alpha data values are used within an alpha blending mixer to control whether a pixel is displayed or suppressed. Synchronization of the unsynchronized video sources occurs within the processing unit after alpha data values have been generated for each left and right channels.
    Type: Application
    Filed: March 30, 2011
    Publication date: January 24, 2013
    Applicant: DESIGN & TEST TECHNOLOGY, INC.
    Inventor: Lawrence J. Tucker
  • Patent number: 6433949
    Abstract: A head for writing a plurality of bands. The bands have magnetic transitions onto a magnetic media (110). The magnetic media (110) travels in a preselected direction. The head includes a body support structure (100) and a plurality of write elements (120). The write elements (120) have a fixed alignment in the body support structure (100) that is substantially perpendicular relative to the travel direction of the magnetic media (110).
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: August 13, 2002
    Assignee: Design & Test Technology, Inc.
    Inventors: Michael E. Murphy, Lawrence J. Tucker
  • Patent number: 5987392
    Abstract: Peak detection is conducted by converting a continuous waveform into discrete samples. The discrete samples are evaluated to identify three points near a peak of the continuous waveform. After the three points near the peak are identified, they are stored in a discrete domain data structure which is used in conjunction with a table generated from a continuous transformation function in order to identify an accurate peak amplitude and time.
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: November 16, 1999
    Inventors: Lawrence J. Tucker, Michael E. Murphy
  • Patent number: 5617269
    Abstract: A multi-track servo recording head includes a multi-tip write core for simultaneously writing a plurality of tracking signals on magnetic storage media. The magnetic recording head may include an optical edge sensor and a magnetic edge sensor for sensing the position of the recording head relative to the edge of the storage media. Additionally, a read core is provided to detect the longitudinal position of the storage media relative to the recording head during media transport.
    Type: Grant
    Filed: February 14, 1994
    Date of Patent: April 1, 1997
    Assignee: Conner Peripherals, Inc.
    Inventors: Robert J. M. Gordenker, Lawrence J. Tucker, Michael E. Murphy
  • Patent number: 5402273
    Abstract: This invention is directed to a method and a circuit for determining a relative phase shift between a data transition and a data separator window which are used to decode data read back from a mass storage device. The data separator windows provide a time interval in which a data transition must occur in order to be properly interpreted. This is accomplished by delaying the occurrence of the data transition, thereby shifting it toward the trailing edge of the data separator window, to determine if the delayed data transition occurs late within the data separator window. At the same time, the occurrence of the data separator window is delayed, thereby shifting the leading edge of the data separator window toward the data transition, to determine if the data transition occurs late within the data separator window.
    Type: Grant
    Filed: October 1, 1992
    Date of Patent: March 28, 1995
    Assignee: Conner Peripherals, Inc.
    Inventor: Lawrence J. Tucker
  • Patent number: 5396376
    Abstract: A multi-track servo-recording format includes servo zones defined longitudinally by stripes extending across the width of a storage member. Track centering signals are provided within each servo zone for locating the center of each data track on the storage member. Track-identifying indicia are provided at the beginning and end of the storage member and in each written track.
    Type: Grant
    Filed: March 23, 1992
    Date of Patent: March 7, 1995
    Assignee: Conner Peripherals, Inc.
    Inventors: John M. Chambors, Bruce V. Janiszewski, Marlin K. Klumpp, Nick A. Skogler, Lawrence J. Tucker, Robert G. Voss