Patents by Inventor Ronald J. Proesel

Ronald J. Proesel 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).

  • General purpose parallel port interface
    Patent number: 5390321
    Abstract: A general purpose interface is provided for connecting a floppy disk drive to a parallel port of a personal computer. The interface comprises an interface circuit and software driver circuit operated by the CPU. The interface circuit emulates the internal bus circuit in the CPU and can be used with virtually any disk controller. The interface circuit uses gate arrays as state machine logic elements to perform various functions, eliminating requirements for a microprocessor and plural memory chips.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: February 14, 1995
    Inventor: Ronald J. Proesel
  • General purpose parallel port interface
    Patent number: 5335338
    Abstract: A general purpose interface is provided for connecting a floppy disk drive to a parallel port of a personal computer. The interface comprises an interface circuit and software driver circuit operated by the CPU. The interface circuit emulates the internal bus circuit in the CPU and can be used with virtually any disk controller. The interface circuit uses gate arrays as state machine logic elements to perform various functions, eliminating requirements for a microprocessor and plural memory chips.
    Type: Grant
    Filed: May 31, 1991
    Date of Patent: August 2, 1994
    Assignee: Micro Solutions, Inc.
    Inventor: Ronald J. Proesel