Patents by Inventor Michael Vincent Bogda

Michael Vincent Bogda 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).

  • Digital switching for PABX telephone communication systems
    Patent number: 3993873
    Abstract: Disclosed is a method and apparatus for digitally switching audio signals in a telephone communication system having a plurality of telephone stations with their voice communication channels selectively coupled by way of analog to digital and digital to analog converters through a switch matrix controlled from the output of a stored program controlled computer. The analog audio signals to be inputted to the digital switch matrix are converted to pulse width modulated digital signals, the digitized audio signals outputted from the matrix being reconverted to analog audio signals.
    Type: Grant
    Filed: January 31, 1975
    Date of Patent: November 23, 1976
    Assignee: Danray, Inc.
    Inventors: Michael Vincent Bogda, Richard J. Bousek, Frederick G. Doidge, John W. Israel