Patents by Inventor Augusto Gallegos

Augusto Gallegos 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).

  • Counter based ringer interface
    Patent number: 5940501
    Abstract: The present invention comprises a ringer interface circuit for generating a ringer signal for controlling a telephone ringer. The circuit of the present invention includes a first frequency divider, a second frequency divider, and a third frequency divider. The first frequency divider is adapted to receive a ringer clock signal and generate a first divider frequency output therefrom. The second frequency divider is coupled to receive the first divider frequency output and is adapted to generate a second divider frequency output using the first divider frequency output. The second frequency divider is further adapted to generate a oversampled audio frequency signal. The third frequency divider is coupled to receive the second frequency divider output and is adapted to generate a period signal using the second frequency divider output.
    Type: Grant
    Filed: September 17, 1997
    Date of Patent: August 17, 1999
    Assignee: VLSI Technology, Inc.
    Inventors: Philippe Silvestre, Augusto Gallegos