Patents by Inventor Yannis P. Tsividis

Yannis P. Tsividis 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).

  • System and method for dynamic power-optimization of analog active filters
    Patent number: 7436251
    Abstract: A circuit including two operational amplifiers connected in parallel. For the purpose of this explanation, assume that an equivalent input noise of a circuit with one operational amplifier is too high. Where two operational amplifiers, are connected in parallel, the signals from the operational amplifiers add as currents at the output node of the parallel combination.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: October 14, 2008
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Mehmet T. Ozgun, Yannis P. Tsividis
  • Circuits with dynamic biasing
    Patent number: 6861896
    Abstract: Techniques are provided for the implementation of dynamically biased circuits. In these circuits, bias currents are varied according to signal amplitude. Benefits include reduced power dissipation, reduced noise, and increased dynamic range. The techniques can be employed in various types of circuits such as, for example, amplifiers, log-domain circuits, and filters.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: March 1, 2005
    Assignee: The Trustees of Columbia University of the City of New York
    Inventors: Yannis P. Tsividis, Nagendra Krishnapura
  • Circuits with dynamic biasing
    Patent number: 6816003
    Abstract: Techniques are provided for the implementation of dynamically biased circuits. In these circuits, bias currents are varied according to signal amplitude. Benefits include reduced power dissipation, reduced noise, and increased dynamic range. The techniques can be employed in various types of circuits such as, for example, amplifiers, log-domain circuits, and filters.
    Type: Grant
    Filed: February 5, 2001
    Date of Patent: November 9, 2004
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Nagendra Krishnapura, Yannis P. Tsividis
  • Circuits with dynamic biasing
    Patent number: 6717461
    Abstract: Techniques are provided for the implementation of dynamically biased circuits. In these circuits, bias currents are varied according to signal amplitude. Benefits include reduced power dissipation, reduced noise, and increased dynamic range. The techniques can be employed in various types of circuits such as, for example, amplifiers, log-domain circuits, and filters.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: April 6, 2004
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Nagendra Krishnapura, Yannis P. Tsividis
  • Circuits with dynamic biasing
    Patent number: 6683492
    Abstract: Techniques are provided for the implementation of dynamically biased circuits. In these circuits, bias currents are varied according to signal amplitude. Benefits include reduced power dissipation, reduced noise, and increased dynamic range. The techniques can be employed in various types of circuits such as, for example, amplifiers, log-domain circuits, and filters.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: January 27, 2004
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Nagendra Krishnapura, Yannis P. Tsividis
  • Circuits with dynamic biasing
    Publication number: 20030117212
    Abstract: Techniques are provided for the implementation of dynamically biased circuits. In these circuits, bias currents are varied according to signal amplitude. Benefits include reduced power dissipation, reduced noise, and increased dynamic range. The techniques can be employed in various types of circuits such as, for example, amplifiers, log-domain circuits, and filters.
    Type: Application
    Filed: January 28, 2003
    Publication date: June 26, 2003
    Inventors: Nagendra Krishnapura, Yannis P. Tsividis
  • Circuits with dynamic biasing
    Publication number: 20030112060
    Abstract: Techniques are provided for the implementation of dynamically biased circuits. In these circuits, bias currents are varied according to signal amplitude. Benefits include reduced power dissipation, reduced noise, and increased dynamic range. The techniques can be employed in various types of circuits such as, for example, amplifiers, log-domain circuits, and filters.
    Type: Application
    Filed: January 28, 2003
    Publication date: June 19, 2003
    Inventors: Nagendra Krishnapura, Yannis P. Tsividis
  • Circuits with dynamic biasing
    Publication number: 20030112059
    Abstract: Techniques are provided for the implementation of dynamically biased circuits. In these circuits, bias currents are varied according to signal amplitude. Benefits include reduced power dissipation, reduced noise, and increased dynamic range. The techniques can be employed in various types of circuits such as, for example, amplifiers, log-domain circuits, and filters.
    Type: Application
    Filed: January 28, 2003
    Publication date: June 19, 2003
    Inventors: Nagendra Krishnapura, Yannis P. Tsividis
  • Circuits with dynamic biasing
    Publication number: 20020036519
    Abstract: Techniques are provided for the implementation of dynamically biased circuits. In these circuits, bias currents are varied according to signal amplitude. Benefits include reduced power dissipation, reduced noise, and increased dynamic range. The techniques can be employed in various types of circuits such as, for example, amplifiers, log-domain circuits, and filters.
    Type: Application
    Filed: February 5, 2001
    Publication date: March 28, 2002
    Applicant: The Trustees of Columbia University in the City of New York
    Inventors: Nagendra Krishnapura, Yannis P. Tsividis