Patents by Inventor J. Robert Ims

J. Robert Ims 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).

  • High speed thermal printing circuit
    Patent number: 4630068
    Abstract: A thermal head drive circuit with the input connected to a source of printing data and the output connected to a thermal head including a linear array of heater elements improves the printing speed of a thermal head recording apparatus when printing successive lines. Improved printing speed is effected by simultaneously energizing each heater element with the time of energization for any one heater element being determined by the shade of gray to be produced by that one heater element.
    Type: Grant
    Filed: September 30, 1985
    Date of Patent: December 16, 1986
    Assignee: Raytheon Company
    Inventor: J. Robert Ims