Patents by Inventor Kor Vegter

Kor Vegter 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: 6310954
    Abstract: A high efficiency ringer circuit having low distortion of the ringer output signal, which is simple in design and inexpensive to manufacture is disclosed. This may be accomplished with a ringer circuit comprising an input signal source, a signal amplifier for receiving and amplifying an input signal from the input signal source, a direct current source for providing power to the signal amplifier, a comparator circuit for receiving an input signal from the signal amplifier, and a switching circuit for receiving an input signal from the comparator circuit for providing an output signal to the direct current source, where, when said input signal to the comparator circuit exceeds a set value, the output signal from the switching circuit de-energizes the direct current source. The amplifier may be a Push-Pull amplifier. The direct current power supply may be a DC/DC SMPS.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: October 30, 2001
    Assignee: Lucent Technologies, Inc.
    Inventor: Kor Vegter