Patents by Inventor Donald A. Weigt

Donald A. Weigt 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: 4847685
    Abstract: A system for automatically surveying television viewership detects horizontal and vertical synchronization signals and determines the relative phases of these signals with respect to a time base counter in a survey unit. All stations in the viewing area are monitored to determine the relative phases of the broadcast synchronization signals with respect to a time base counter of the monitoring unit. Then, the data are correlated to determine the channels being viewed. Correlation is made by comparing the direction and magnitude of phase shifts of the synchronization signals in the surveyed unit with the data produced by the unit monitoring all stations.
    Type: Grant
    Filed: August 7, 1987
    Date of Patent: July 11, 1989
    Assignee: Audience Information Measurement System
    Inventors: Richard C. Gall, Donald A. Weigt, Steven L. Paugh
  • Patent number: 4145717
    Abstract: A subscription TV decoder for processing encoded audio and video signals in which the TV program audio information is received as an audio subcarrier includes means for decoding the video signal, a filter for separating the decoded video and audio signals, and a filter for separating the audio signal from the audio information subcarrier. The audio information subcarrier is multiplied to raise it to the frequency of the audio signal and is then recombined with the decoded video signal.
    Type: Grant
    Filed: May 11, 1977
    Date of Patent: March 20, 1979
    Assignee: Oak Industries Inc.
    Inventors: Stanley E. Guif, Terry L. Nimmer, Donald A. Weigt, Glenn Wolenec, Richard C. Gall
  • Patent number: 4112464
    Abstract: A subscription TV decoder for processing encoded audio and video signals utilizes decoder enabling signals which are transmitted as audio subcarriers and have data and address portions thereof. The decoder includes audio and video decoder circuits and a decoder enabling circuit. The enabling circuit has address storage means and means for comparing the address portion of a received message with the stored address. There are means responsive to the address comparison means for storing the data portion of the message. The enabling message utilizes an address common to a plurality of subscribers and there are means responsive to a received enabling message for comparing the stored data with the enabling message data and to enable the audio and video decoder circuits in response to correspondence therebetween.
    Type: Grant
    Filed: May 11, 1977
    Date of Patent: September 5, 1978
    Assignee: Oak Industries Inc.
    Inventors: Stanley E. Guif, Terry L. Nimmer, Donald A. Weigt, Glenn Wolenec, Richard C. Gall