Patents by Inventor Quino Alexander Sandifort

Quino Alexander Sandifort 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).

  • Means for compensating a data-dependent supply current in an electronic circuit
    Patent number: 6501401
    Abstract: Electronic circuitry comprising a data processing circuit for processing a digital signal (DS), such as a digital to analog converter (DAC), and a current compensation circuit (CMP). Both the digital to analog converter (DAC) and the current compensation circuit (CMP) are powered by a single power supply (U1). The current taken from the power supply (U1) by the digital to analog converter (DAC) is normally dependent on the digital input signal (DS). This would lead to distortion since the loss-resistances (R11, R12) which are always present in series with the power supply (U1) then feed a data-dependent supply voltage (U2) to the digital to analog converter (DAC). This problem is overcome by the addition of the current compensation circuit (CMP) which is coupled for receiving the digital signal (DS).
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: December 31, 2002
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Jeroen Michiel Van Den Boom, Jan Roelof Westra, Quino Alexander Sandifort
  • Means for compensating a data-dependent supply current in an electronic circuit
    Publication number: 20020047792
    Abstract: Electronic circuitry comprising a data processing circuit for processing a digital signal (DS), such as a digital to analog converter (DAC), and a current compensation circuit (CMP). Both the digital to analog converter (DAC) and the current compensation circuit (CMP) are powered by a single power supply (U1). The current taken from the power supply (U1) by the digital to analog converter (DAC) is normally dependent on the digital input signal (DS). This would lead to distortion since the loss-resistances (R11, R12) which are always present in series with the power supply (U1) then feed a data-dependent supply voltage (U2) to the digital to analog converter (DAC). This problem is overcome by the addition of the current compensation circuit (CMP) which is coupled for receiving the digital signal (DS).
    Type: Application
    Filed: September 25, 2001
    Publication date: April 25, 2002
    Inventors: Jeroen Michiel Van Den Boom, Jan Roelof Westra, Quino Alexander Sandifort
  • Switching control circuit
    Publication number: 20020011891
    Abstract: To switch a switch of an audio source for example the problem exists that switching noise can occur.
    Type: Application
    Filed: July 16, 2001
    Publication date: January 31, 2002
    Inventors: Han Martijn Schuurmans, Quino Alexander Sandifort