Patents by Inventor Joseph R. Ahlgren

Joseph R. Ahlgren 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).

  • Digital frequency generator
    Patent number: 3937932
    Abstract: A digital frequency generator for producing a pulse output at a specified frequency is disclosed. The circuit is designed to operate in either of two modes in order to obtain high accuracy over a wide range of frequency operation. In a first mode, the circuit merely acts as a frequency scaler producing an output when a counter overflows. In a second mode, a comparator is employed for deciding whether an additional clock pulse delay is necessary to obtain the required degree of accuracy.
    Type: Grant
    Filed: April 15, 1974
    Date of Patent: February 10, 1976
    Assignee: Barber-Colman Company
    Inventor: Joseph R. Ahlgren