Patents by Inventor Allan E. Alcorn

Allan E. Alcorn 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).

  • Video image positioning control system
    Patent number: 4054919
    Abstract: For controlling the direction and rate of movement of an image on a raster scan display, a first set of counters is arranged to generate digital pulses for use as horizontal and vertical sync pulses for use in conjunction with a video adder for controlling the image on the display. Means, such as a second set of counters, driven by another clock means, provides an output which is compared to that of the first named counters to provide information signals to the video adder for controlling the location and movements for the image being displayed.
    Type: Grant
    Filed: September 15, 1975
    Date of Patent: October 18, 1977
    Assignee: Atari Incorporated
    Inventor: Allan E. Alcorn