Patents by Inventor Jose O. Perez

Jose O. Perez 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).

  • High-speed CMOS buffer circuit with programmable quadratic transfer function
    Patent number: 6510012
    Abstract: An asymmetry correction circuit for correcting an asymmetry signal includes a first transconductance circuit for transforming the asymmetry signal to a bias current in a first current path, a second transconductance circuit to form the bias current in a second current path, and a feed-forward circuit for transforming the asymmetry signal to a positive difference current and a negative difference current.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: January 21, 2003
    Assignee: Texas Instruments Incorporated
    Inventors: Alan I. Chaiken, Mark J. Chambers, Jose O. Perez
  • CMOS DC offset correction circuit with programmable high-pass transfer function
    Publication number: 20020122265
    Abstract: An offset correction circuit to correct DC offset in accordance with a data rate includes a detection circuit to detect a thermal asperity signal and a filter circuit to respond to the thermal asperity signal in accordance with the data rate.
    Type: Application
    Filed: July 10, 2001
    Publication date: September 5, 2002
    Inventors: Mark J. Chambers, Scott A. Kaylor, Jose O. Perez, Alan I. Chaiken
  • dB linear variable gain amplifier
    Publication number: 20020048109
    Abstract: A dB gain amplifier for providing a levelized output signal includes a first transconductance circuit to output a first current in a first current path, a second transconductance circuit to output a second current in a second current path, a first current mirror to control the first current in the first current path, a second current mirror to control the second current in the second current path, and a DAC circuit to control the first and second current mirrors piecewise linearly.
    Type: Application
    Filed: August 30, 2001
    Publication date: April 25, 2002
    Inventors: Alan I. Chaiken, Mark J. Chambers, Jose O. Perez