Patents by Inventor Marco Orazio Cavallaro

Marco Orazio Cavallaro 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: 9813044
    Abstract: An active high gain filter includes high value resistances in feedback implemented using a negative resistance circuit configuration. The high value resistance is implemented using two or smaller resistances connected in the negative resistance circuit configuration. This implementation permits integration of the filter circuit using less occupied area while still providing an accurate transfer function response.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: November 7, 2017
    Assignee: STMicroelectronics S.r.l.
    Inventor: Marco Orazio Cavallaro
  • Publication number: 20170222626
    Abstract: An active high gain filter includes high value resistances in feedback implemented using a negative resistance circuit configuration. The high value resistance is implemented using two or smaller resistances connected in the negative resistance circuit configuration. This implementation permits integration of the filter circuit using less occupied area while still providing an accurate transfer function response.
    Type: Application
    Filed: February 3, 2016
    Publication date: August 3, 2017
    Applicant: STMicroelectronics S.r.l.
    Inventor: Marco Orazio Cavallaro
  • Patent number: 9385671
    Abstract: A circuit includes a first pair of transistors connected in parallel between a first node and a second node with a diode-connected transistor coupled to the second node. A second pair of transistors has current terminals connected at a third node. A first and second current sink transistors are connected in a current mirror configuration with the diode-connected transistor and further coupled to the third node. A first differential amplifier has an output coupled to control terminals of the first and third transistors and an input coupled to a further current node of the third transistor. A second differential amplifier has an output coupled to control terminals of the second and fourth transistors and an input coupled to a further current node of the fourth transistor.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: July 5, 2016
    Assignee: STMicroelectronics S.r.l.
    Inventor: Marco Orazio Cavallaro
  • Publication number: 20150333713
    Abstract: A circuit includes a first pair of transistors connected in parallel between a first node and a second node with a diode-connected transistor coupled to the second node. A second pair of transistors has current terminals connected at a third node. A first and second current sink transistors are connected in a current mirror configuration with the diode-connected transistor and further coupled to the third node. A first differential amplifier has an output coupled to control terminals of the first and third transistors and an input coupled to a further current node of the third transistor. A second differential amplifier has an output coupled to control terminals of the second and fourth transistors and an input coupled to a further current node of the fourth transistor.
    Type: Application
    Filed: May 8, 2015
    Publication date: November 19, 2015
    Applicant: STMicroelectronics S.r.l.
    Inventor: Marco Orazio Cavallaro
  • Patent number: 8854136
    Abstract: A fully differential operational amplifier includes a differential input stage, at least one output stage and a common-mode feedback circuit connected with the input stage. The differential input stage includes a differential pair of transistors and a bias circuit for the differential pair of transistors. A start-up circuit operates to detect an operating condition of the differential pair of transistors of the input stage and in response thereto turn on the bias circuit.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: October 7, 2014
    Assignees: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics S.r.l.
    Inventors: Marco Orazio Cavallaro, Serge Ramet, Tiziano Chiarillo
  • Patent number: 8218656
    Abstract: A pulse generator circuit is provided. The pulse generator circuit has an input adapted to receive an input electrical quantity and an output at which an output electrical quantity is made available. A transfer characteristic establishes a relationship between said input and said output electrical quantities. The pulse generator circuit is adapted to provide said output electrical quantity in the form of pulses having a predetermined shape, suitable to be used for UWB transmission. The transfer characteristic has substantially a same shape as that of said pulses. Moreover, a UWB modulating system exploiting the novel pulse generator is proposed.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: July 10, 2012
    Assignee: STMicroelectronics S.r.l.
    Inventors: Marco Orazio Cavallaro, Tino Copani, Giovanni Girlando, Giuseppe Palmisano
  • Patent number: 8139621
    Abstract: A pulse generator circuit is provided. The pulse generator circuit has an input adapted to receive an input electrical quantity and an output at which an output electrical quantity is made available. A transfer characteristic establishes a relationship between said input and said output electrical quantities. The pulse generator circuit is adapted to provide said output electrical quantity in the form of pulses having a predetermined shape, suitable to be used for UWB transmission. The transfer characteristic has substantially a same shape as that of said pulses. Moreover, a UWB modulating system exploiting the novel pulse generator is proposed.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: March 20, 2012
    Assignee: STMicroelectronics S.r.l.
    Inventors: Marco Orazio Cavallaro, Tino Copani, Giovanni Girlando, Giuseppe Palmisano
  • Publication number: 20110135031
    Abstract: A pulse generator circuit is provided. The pulse generator circuit has an input adapted to receive an input electrical quantity and an output at which an output electrical quantity is made available. A transfer characteristic establishes a relationship between said input and said output electrical quantities. The pulse generator circuit is adapted to provide said output electrical quantity in the form of pulses having a predetermined shape, suitable to be used for UWB transmission. The transfer characteristic has substantially a same shape as that of said pulses. Moreover, a UWB modulating system exploiting the novel pulse generator is proposed.
    Type: Application
    Filed: December 6, 2010
    Publication date: June 9, 2011
    Applicant: STMicroelectronics, S.r.I.
    Inventors: Marco Orazio CAVALLARO, Tino Copani, Giovanni Girlando, Giuseppe Palmisano
  • Publication number: 20110134966
    Abstract: A pulse generator circuit is provided. The pulse generator circuit has an input adapted to receive an input electrical quantity and an output at which an output electrical quantity is made available. A transfer characteristic establishes a relationship between said input and said output electrical quantities. The pulse generator circuit is adapted to provide said output electrical quantity in the form of pulses having a predetermined shape, suitable to be used for UWB transmission. The transfer characteristic has substantially a same shape as that of said pulses. Moreover, a UWB modulating system exploiting the novel pulse generator is proposed.
    Type: Application
    Filed: December 6, 2010
    Publication date: June 9, 2011
    Applicant: STMicroelectronics, S.r.I.
    Inventors: Marco Orazio CAVALLARO, Tino Copani, Giovanni Girlando, Giuseppe Palmisano
  • Patent number: 7869524
    Abstract: A pulse generator circuit is provided. The pulse generator circuit has an input adapted to receive an input electrical quantity and an output at which an output electrical quantity is made available. A transfer characteristic establishes a relationship between said input and said output electrical quantities. The pulse generator circuit is adapted to provide said output electrical quantity in the form of pulses having a predetermined shape, suitable to be used for UWB transmission. The transfer characteristic has substantially a same shape as that of said pulses. Moreover, a UWB modulating system exploiting the novel pulse generator is proposed.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: January 11, 2011
    Assignee: STMicroelectronics, S.r.l.
    Inventors: Marco Orazio Cavallaro, Tino Copani, Giovanni Girlando, Giuseppe Palmisano