Patents by Inventor Mark A. Dempsky

Mark A. Dempsky 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).

  • Channel redundancy in a digital loop carrier system
    Patent number: 4878048
    Abstract: A channel redundancy system for use with a central office connected to a remote location. A central office terminal at the central office has a plurality of channel units including at least one spare channel unit. A remote terminal at the remote location also has a plurality of channel units including at least one spare channel unit. The channel units in the remote terminal are correspondingly associated with the channel units in the central office termimal. From a repair service bureau located remote from both the central office and the remote location in a defective channel unit can be identified and replaced by the spare channel unit.
    Type: Grant
    Filed: August 10, 1988
    Date of Patent: October 31, 1989
    Assignee: Rockwell International Corporation
    Inventors: Jeffrey L. Gottesman, Mark A. Dempsky, Donald E. Koch, Dev R. Rattan
  • Method for effecting one timer interrupt for multiple port communication
    Patent number: 4707782
    Abstract: A method for effecting full duplex communications through a plurality of ports of a processing apparatus having one timer. Each output and input signal is expressed as a plurality of bit time intervals.
    Type: Grant
    Filed: September 7, 1984
    Date of Patent: November 17, 1987
    Assignee: Illinois Tool Works Inc.
    Inventors: Steve Dumbovic, Mark A. Dempsky