Patents by Inventor Peter D. MacDonald

Peter D. MacDonald 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).

  • Enhanced data cable with cross-twist cabled core profile
    Patent number: 8729394
    Abstract: A cable exhibiting reduced crosstalk between transmission media includes a core having a profile with a shape which defines spaces or channels to maintain a spacing between transmission media in a finished cable. The core is formed of a conductive material to further reduce crosstalk. A method of producing a cable introduces a core as described above into the cable assembly and imparts a cable closing twist to the assembly.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: May 20, 2014
    Assignee: Belden Inc.
    Inventors: William T. Clark, Peter D. MacDonald, Joseph Dellagala
  • Enhanced data cable with cross-twist cabled core profile
    Patent number: 6596944
    Abstract: A cable exhibiting reduced crosstalk between transmission media includes a core having a profile with a shape which defines spaces or channels to maintain a spacing between transmission media in a finished cable. The core is formed of a conductive material to further reduce crosstalk. A method of producing a cable introduces a core as described above into the cable assembly and imparts a cable closing twist to the assembly.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: July 22, 2003
    Assignee: Cable Design Technologies, Inc.
    Inventors: William T. Clark, Peter D. MacDonald, Joseph Dellagala
  • Making enhanced data cable with cross-twist cabled core profile
    Patent number: 6074503
    Abstract: A cable exhibiting reduced crosstalk between transmission media includes a core having a profile with a shape which defines spaces or channels to maintain a spacing between transmission media in a finished cable. The core is formed of a conductive material to further reduce crosstalk. A method of producing a cable introduces a core as described above into the cable assembly and imparts a cable closing twist to the assembly.
    Type: Grant
    Filed: April 22, 1997
    Date of Patent: June 13, 2000
    Assignee: Cable Design Technologies, Inc.
    Inventors: William T. Clark, Peter D. MacDonald, Joseph Dellagala
  • Full resolution sterescopic display
    Patent number: 5083851
    Abstract: A stereoscopic full resolution image is displayed on a monitor which is perceived to be substantially flicker free. A left and right eye image of the object are digitally represented. The digitized images are divided into a plurality of horizontal raster lines comprised of a plurality of pixels. The odd and even lines of each image are separated and the result stored in four different locations. The four locations are repeatedly scanned at a 30 Hz rate and the monitor's display is refreshed four times for each scan. The sequential scanning alternates between left and right eye images and odd and even lines which are interleaved on the monitor viewing surface.
    Type: Grant
    Filed: September 25, 1989
    Date of Patent: January 28, 1992
    Assignee: MacDonald Dettwiler and Associates Ltd.
    Inventor: Peter D. MacDonald