Patents by Inventor Charles R. Abbruscato

Charles R. Abbruscato 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).

  • Patent number: 7115102
    Abstract: In a local stethoscope unit, acoustic auscultation sounds picked up by the stethoscope chest piece assembly of a local stethoscope unit are converted to analog electrical signals and then converted to digital signals. The digital signals are conveyed to a data communications system, having data communications device and a data communication channel. The digital signals are transmitted over the digital communications system to a remote stethoscope receiving unit. The remote stethoscope unit converts the digital signals back to the original analog signals suitable for listening.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: October 3, 2006
    Inventor: Charles R. Abbruscato
  • Patent number: 4417348
    Abstract: An errorless line protection switching system utilizes a variable delay (29) in the spare channel (21-24, 26-29, 31-33) adjusted to provide data signal alignment with an impaired regular channel before substituting the spare channel for the regular channel. This switching system is able to provide bit error free channel substitution between the spare and any regular channel in a digital radio system by virtue of the data signal alignment capability. Data signal alignment is provided by first aligning clocking signals in fine incremental steps with each clocking signal derived from one of the two channels undergoing the substitution. Data signal alignment is then provided by shifting the spare channel in full bit positions until data alignment is indicated by a detector (119). Data signal alignment is also utilized to restore service to a regular channel so the spare channel may be removed from service.
    Type: Grant
    Filed: April 30, 1981
    Date of Patent: November 22, 1983
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventor: Charles R. Abbruscato