Patents by Inventor Jerry M. Glasson

Jerry M. Glasson 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: 4156238
    Abstract: A circuit is described for selectively increasing the number of text rows on the display screen of a CRT. The number of scan lines in each text row is reduced by one in response to a display format selection signal. The scan lines so saved are utilized to form two additional text rows. A variable modulus scan line counter is used in combination with a decoder to provide the scan line counter modulus desired. Additionally, a text row counter is used in combination with a second decoder to selectively change the modulus of the text row counter to correspond with the selected modulus of the scan line counter. A compressed display is provided by simultaneously changing the modulus of both the scan line and text row counters.
    Type: Grant
    Filed: November 25, 1977
    Date of Patent: May 22, 1979
    Assignee: Teletype Corporation
    Inventors: Jerry M. Glasson, Dennis W. Gruber
  • Patent number: 3938052
    Abstract: Digital logic apparatus for demodulating a received phase-modulated carrier wave wherein phase-shifts between successive signalling intervals encode data elements. A shift register serially stores periodic samples of a squared version of the received wave. Exclusive-OR gates compare pairs of stored wave samples, each pair comprising a sample from a previous signalling interval and a sample from a current signalling interval. At least one of the exclusive-OR gates derives synchronizing signals for a local timing generator. For each data element, an integrator is associated with one of the exclusive-OR gates to accumulate a count related to the time during which pairs of similar samples are sensed by its exclusive-OR gate during each signalling interval. The integrator registering the highest count at the end of a given data interval signifies the data element received during that interval.
    Type: Grant
    Filed: May 9, 1974
    Date of Patent: February 10, 1976
    Assignee: Teletype Corporation
    Inventors: Jerry M. Glasson, Ira S. King