Patents by Inventor Alf Gunnar Onnestam

Alf Gunnar Onnestam 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).

  • System and method for loading computer diagnostic programs
    Patent number: 4112501
    Abstract: Portable system and method for loading diagnostic computer programs stored on a recording media of a recorder, the diagnostic program being stored on the recording media using two frequencies, one frequency representing a "zero" bit and the other frequency representing a "one" bit and the program being loadable into the computer memory by means which is adapted to convert the data into computer readable information.
    Type: Grant
    Filed: June 9, 1976
    Date of Patent: September 5, 1978
    Assignee: Data General Corporation
    Inventor: Alf Gunnar Onnestam