Patents Assigned to Multimedia Design, Inc.
  • Patent number: 5420856
    Abstract: A high-speed multi-media switching system is disclosed having a single control system for controlling the operation of switches of both analog signals and digital signals. The switching system contains security verification circuitry which allows only certain input signals to be switched into each output signal. The switching system also has the capability of simultaneous switching of multiple input signals to multiple output signals by pre-loading trigger event commands, which will force the actuation of the simultaneous switching upon the occurrence of certain predetermined triggering events. The switching system also has the capability of communicating with at least one other similar switching system, and for having triggering events in one switching system force the actuation of both analog and digital switches in the other similar system.
    Type: Grant
    Filed: January 31, 1994
    Date of Patent: May 30, 1995
    Assignee: Multimedia Design, Inc.
    Inventor: Robert Q. Kerns
  • Patent number: 5369219
    Abstract: A multi-layer printed circuit board is disclosed as having more layers and greater accuracy in the conductive traces of those layers than has been previously possible. Using the disclosed multi-layer printed circuit boards can be built having a conductive path width of 0.5 mils (0.0127 mm) and spacing between such conductive traces of 0.5 mils (0.0127 mm). The method enables multi-layer boards to be created having more than eight layers, and still maintaining the desired 0.5 mil conductive path width and spacing. The enhanced accuracy and increased number of layers is made possible by use of adjustments to customer-supplied art work based upon evaluation of test pieces made early in the procedure. By use of the disclosed method, multi-layer printed circuit boards can he built having a high density of coaxial cable equivalents and tuned wave guide equivalents.
    Type: Grant
    Filed: February 10, 1993
    Date of Patent: November 29, 1994
    Assignee: Multimedia Design, Inc.
    Inventor: Robert Q. Kerns
  • Patent number: 5196087
    Abstract: A multi-layer printed circuit board is disclosed as having more layers and greater accuracy in the conductive traces of those layers than has been previously possible. Using the disclosed method, multi-layer printed circuit boards can be built having a conductive path width of 0.5 mils (0.0127 mm) and spacing between such conductive traces of 0.5 mils (0.0127 mm). The method enables multi-layer boards to be created having more than eight layers, and still maintaining the desired 0.5 mil conductive path width and spacing. The enhanced accuracy and increased number of layers is made possible by use of adjustments to customer-supplied art work based upon evaluation of test pieces made early in the procedure. By use of the disclosed method, multi-layer printed circuit boards can be built having a high density of coaxial cable equivalents and tuned wave guide equivalents.
    Type: Grant
    Filed: June 18, 1991
    Date of Patent: March 23, 1993
    Assignee: Multimedia Design, Inc.
    Inventor: Robert Q. Kerns