Patents by Inventor Harry L. Cochrane

Harry L. Cochrane 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: 5589773
    Abstract: A system and method for assessing the electric and magnetic field generated by equipment under test (EUT) by maintaining the EUT in a specified, fixed tilt position, allowing the EUT to rotate while in that specified position and tilting the TEM cell through at least two angles about the EUT. Embodiments contemplate that a fixed tilt mechanism for maintaining the EUT in a fixed position relative to the tilting of the TEM cell is used. The present invention further contemplates various schemes for determining the electric and magnetic fields generated from the EUT based upon the composite electromagnetic reading from the TEM cell. These schemes, which result in improved measurements of the magnetic and electric fields, determine the angles to which the TEM is tilted.
    Type: Grant
    Filed: October 12, 1994
    Date of Patent: December 31, 1996
    Assignee: Siemens Rolm Communications Inc.
    Inventors: H. Stephen Berger, Martha L. Vela de Casillas, Harry L. Cochrane
  • Patent number: 5128619
    Abstract: A method of and system for automatically determining length, attenuation, impedance and existence of bridge taps on installed communication cable having access to only one end of the cable. A waveform, which includes incident and reflected pulses, is analyzed to determine the presence of significant pulses. The presence of only one positive significant pulse indicates the absence of any discontinuities and facilitates the calculation of a signal-to-noise ratio which determines whether the cable will support the operation of digital communication thereon. The presence of more than one positive significant pulse or a negative pulse indicates the presence of at least one fault on the cable which prevents the operation of digital communication on the cable.
    Type: Grant
    Filed: September 5, 1991
    Date of Patent: July 7, 1992
    Inventors: Roger A. Bjork, John T. Chapman, Harry L. Cochrane, Timothy L. Wilson