Patents by Inventor Victor M. Da Costa

Victor M. Da Costa 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: 7557863
    Abstract: A jitter correction apparatus and method are disclosed. In one embodiment, the apparatus has a rising edge corrector to receive a jittered signal and to output a jitter corrected rising edge of the jittered signal. The apparatus may also have a falling edge corrector to receive the jittered signal and to output a jitter corrected falling edge of the jittered signal. The jitter correction apparatus may include an output device to receive the jitter corrected rising edge, to receive the jitter corrected falling edge, and to output a jitter corrected signal.
    Type: Grant
    Filed: September 1, 2005
    Date of Patent: July 7, 2009
    Assignee: Silicon Image, Inc.
    Inventors: Stephen J. Keating, Russel Martin, Victor M. Da Costa, Gyudong Kim
  • Patent number: 6961095
    Abstract: A jitter correction apparatus and method are disclosed. In one embodiment, the apparatus has a rising edge corrector to receive a jittered signal and to output a jitter corrected rising edge of the jittered signal. The apparatus may also have a falling edge corrector to receive the jittered signal and to output a jitter corrected falling edge of the jittered signal. The jitter correction apparatus may include an output device to receive the jitter corrected rising edge, to receive the jitter corrected falling edge, and to output a jitter corrected signal.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: November 1, 2005
    Assignee: Silicon Image, Inc.
    Inventors: Stephen J. Keating, Russel A. Martin, Victor M. Da Costa, Gyudong Kim
  • Patent number: 6870930
    Abstract: The present invention is directed to systems and methods for protecting digital content during transmission. One version of the invention provides a method for encryption in a high-speed digital video transmission system that includes the steps of: a) performing transition controlled encoding of a first sequence of n bit data words into encoded n+1 bit data characters where the n is a positive integer, b) performing XOR masking of the encoded n+1 bit data characters with an XOR mask to produce masked n+1 bit data characters; c) DC balancing the masked n+1 bit data characters to produce DC balanced, masked n+2 bit data characters; d) scrambling the DC balanced, masked n+2 bit data characters using a scrambling formula to produce encrypted n+2 bit data characters; e) encoding control data into encoded n+2 bit control characters, f) generating a serial data stream in response to the encrypted data characters and encoded control characters, and g) transmitting the serial data stream over a communication link.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: March 22, 2005
    Assignee: Silicon Image, Inc.
    Inventors: Gyudong Kim, Victor M. Da Costa, Bruce Kim, David D. Lee, Russel A. Martin, Seung Ho Hwang
  • Publication number: 20020048336
    Abstract: A jitter correction apparatus and method are disclosed. In one embodiment, the apparatus has a rising edge corrector to receive a jittered signal and to output a jitter corrected rising edge of the jittered signal. The apparatus may also have a falling edge corrector to receive the jittered signal and to output a jitter corrected falling edge of the jittered signal. The jitter correction apparatus may include an output device to receive the jitter corrected rising edge, to receive the jitter corrected falling edge, and to output a jitter corrected signal.
    Type: Application
    Filed: August 3, 2001
    Publication date: April 25, 2002
    Inventors: Stephen J. Keating, Russel A. Martin, Victor M. Da Costa, Gyudong Kim
  • Patent number: 6100879
    Abstract: A smart controller chip for controlling an active matrix display. Within the controller chip, circuitry for generating analog reference levels is incorporated alongside circuitry for generating digital timing and control signals. The combination of D/A analog circuitry and standard digital logic makes the controller uniquely suited for addressing all the panel control needs both for the normal digital functions but also for control of the analog aspects of the panel, like display gamma. The analog reference levels and the digital signals are made programmable using registers internal to the controller chip. The contents of these registers are programmed initially by digital values stored in an external PROM or in flash memory integrated into the controller chip. In addition, software in a host system is able to program these registers via an interface between the host system and the controller chip.
    Type: Grant
    Filed: August 11, 1997
    Date of Patent: August 8, 2000
    Assignee: Silicon Image, Inc.
    Inventor: Victor M. Da Costa
  • Patent number: 5237346
    Abstract: An integrated thin film electrographic writing head. The writing head has integrated therein a plurality of marking electrodes or nibs arranged in a linear array for writing onto a medium, and a plurality of high voltage driving circuits for driving the nibs. The write head also includes a plurality of latches each connected to the high voltage driving circuits, a plurality of memory cells each connected to the latches, a plurality of buffers, each buffer supplying a select line to the plurality of memory cells, and a plurality of selection elements, supplying a selection signal to each of the buffers to drive a segment of memory cells. The integrated memory means and latching means allow for simultaneous latching and writing of an entire scanline of data.
    Type: Grant
    Filed: April 20, 1992
    Date of Patent: August 17, 1993
    Assignee: Xerox Corporation
    Inventors: Victor M. Da Costa, Patrick A. O'Connell
  • Patent number: 5166960
    Abstract: An improved shift register assembly having an integrated multi-phased dynamic shift register with a corresponding multi-phased driving buffer for addressing elements of an array. The shift register and buffer combination is used to select segments on the array having a common select line thus reducing the number of input lines needed to address such an array. Furthermore, the multi-phased operation of the shift register allows for faster operation than tyhat of a traditional shift register setup.
    Type: Grant
    Filed: April 20, 1992
    Date of Patent: November 24, 1992
    Assignee: Xerox Corporation
    Inventor: Victor M. Da Costa
  • Patent number: 5105246
    Abstract: A leaky thin film transistor including a charge transport layer, source and drain electrodes located adjacent to the charge transport layer, a gate electrode spaced from the charge transport layer by a gate dielectric layer, the gate electrode defining a gated portion of the charge transport layer extending between the source electrode and the drain electrode, and an ungated portion of the charge transport layer extending between the source and drain electrodes and providing an electrical path for leakage current to flow between the source and drain electrodes in parallel with the gated path between the source and drain electrodes.
    Type: Grant
    Filed: August 10, 1990
    Date of Patent: April 14, 1992
    Assignee: Xerox Corporation
    Inventor: Victor M. Da Costa
  • Patent number: 5073723
    Abstract: A cascode circuit for switching a high voltage thin film transistor substantially over its entire high voltage range, comprising a leaky low voltage thin film transistor connected in series with the high voltage thin film transistor, the transistors being connected between a source of high potential and a source of reference potential, and the leaky low voltage thin film transistor includes a space charge limited current shunt connected in parallel with the low voltage thin film transistor.
    Type: Grant
    Filed: August 10, 1990
    Date of Patent: December 17, 1991
    Assignee: Xerox Corporation
    Inventor: Victor M. Da Costa