Patents by Inventor Wim A. Improm

Wim A. Improm 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).

  • Controller architecture for RF trunking distributed multisite switch
    Patent number: 5239538
    Abstract: A radio frequency (RF) signal transmission system is interconnected by a multisite switch that routes command and audio transmission signals between the RF systems. The multisite switch has a distributed architecture of nodes wherein each node is coupled to one of the RF systems, such as a site controller or dispatcher console. Each of the switch nodes has a common architecture in which a single controller board operates a plurality of audio boards. In addition, the controller board has two principal processors that communicate with each other via a dual-port RAM.
    Type: Grant
    Filed: February 22, 1991
    Date of Patent: August 24, 1993
    Assignee: Ericsson GE Mobile Communications, Inc.
    Inventors: James L. Teel, Jr., Philip C. Gulliford, Charles P. Brame, Timothy F. Cree, Wim A. Improm