Patents Assigned to STMicrolectronics S.r.l.
  • Patent number: 8754602
    Abstract: An embodiment of a motor controller includes a motor driver and a signal conditioner. The motor driver is configured to generate a motor-coil drive signal having a first component at a first frequency, and the signal conditioner is coupled to the motor driver and is configured to alter the first component. For example, if the first component of the motor-coil drive signal causes the motor to audibly vibrate (e.g., “whine”), then the signal conditioner may alter the amplitude or phase of the first component to reduce the vibration noise to below a threshold level.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: June 17, 2014
    Assignees: STMicroelectronics, Inc., STMicrolectronics S.r.l.
    Inventors: Frederic Bonvin, Ezio Galbiati
  • Patent number: 8687095
    Abstract: A method may denoise a digital video signal produced by a photoelectric sensor as a matrix of pixel signals affected by both thermal noise and impulsive noise. The method may include estimating the noise level associated to the pixel signals, and filtering the pixel signals with an attenuation factor that is a function of the estimated noise level.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: April 1, 2014
    Assignee: STMicrolectronics S.R.L.
    Inventor: Daniele Alfonso
  • Publication number: 20110095358
    Abstract: A semiconductor structure including a substrate of semiconductor material of a first type of conductivity; a first semiconductor layer set in direct electrical contact with the substrate on a first side of the substrate; a second semiconductor layer set in direct electrical contact with the substrate on a second side of the substrate; a first active electronic device formed in the first semiconductor layer; and a second active electronic device formed in the second semiconductor layer.
    Type: Application
    Filed: October 27, 2010
    Publication date: April 28, 2011
    Applicant: STMicrolectronics S.r.l.
    Inventors: Monica Micciche', Antonio Giuseppe Grimaldi, Gaetano Bazzano, Nicolò Frazzetto
  • Patent number: 6105202
    Abstract: An intelligent suction device, particularly for vacuum cleaners and the like, includes a fuzzy-logic controller for controlling the motor of a fan or turbine. The suction pressure is detected by at least one pressure sensor which feeds back its measurement, in a closed loop, to the controller.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: August 22, 2000
    Assignee: STMicrolectronics S.r.l.
    Inventors: Giuseppe Grasso, Matteo Lo Presti, Gianfranco Sortino