Patents by Inventor Giuseppe D'Angelo

Giuseppe D'Angelo 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).

  • Publication number: 20170025929
    Abstract: An electric motor is controlled by means of pulse-width modulated control signal having edge transitions occurring at certain transition count values of the pulses of a clock signal which is frequency-modulated with a step-wise frequency modulation (e.g., SSCG or Spread Spectrum Clock Generation). A frequency unmodulated clock signal is provided having a fixed period indicative of the period of the pulse-width modulated control signals. The transition count values are set as a function of a predicted count value and/or a predicted frequency value for the frequency-modulated clock signal. Prediction occurs as a function of the frequency unmodulated clock signal, so that the transition count values are compensated against the step-wise (e.g., SSCG) frequency modulation.
    Type: Application
    Filed: March 10, 2016
    Publication date: January 26, 2017
    Inventors: Giuseppe D'angelo, Michele Bisogno, Virginia Clemente
  • Patent number: 9523566
    Abstract: Electric circuit for estimating the angular position of a rotor of an electric motor, including: a sensing module configured to receive at least one electric signal representative of a drive current of the electric motor and to generate a measurement signal indicative of a switching of the at least one electric signal and a switching index indicative of the type of switching, rising or falling, of the at least one electric signal; and a computing module configured to supply, from the measurement signal and switching index a position signal representative of an angular position of the electric motor rotor.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: December 20, 2016
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Giuseppe D'Angelo, Giovanni Moselli, Virginia Clemente
  • Publication number: 20160173014
    Abstract: A driver device for driving a DC motor using PWM modulated drive signals includes comparator circuits for producing digitalized Back-EMF signals having first and second values as a function of the Back-EMF signals being above or below a respective threshold, and an inverter for driving the PWM modulated drive signals in a phased relationship with the digitalized Back-EMF signals. The driver device also includes controller circuits configured for controlling the respective threshold by minimizing the error between a time measured between two consecutive opposed edges of the digitalized Back-EMF signal and half a time measured between two consecutive homologous edges of the digitalized Back-EMF signal.
    Type: Application
    Filed: September 16, 2015
    Publication date: June 16, 2016
    Inventors: Giuseppe D'ANGELO, Virginia CLEMENTE, Michele BISOGNO
  • Patent number: 9212967
    Abstract: A method for monitoring the quality of an industrial working process, which includes identifying defects of the working process, comprises acquiring at least one signal having multiple frequency components from the industrial working process, decomposing the at least one signal having multiple frequency components in signals having single frequency components, calculating the information content for each signal having a single frequency component, analyzing the information content for each signal having a single frequency component, and if the value of the information content of the signal at the lowest single frequency component does not represent a main percentage of the information content of the whole acquired signal, the acquired signal having multiple frequency components is evaluated as indicative of a working process with defects and a defect analysis step is performed on the signal having multiple frequency components.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: December 15, 2015
    Assignee: C.R.F. SOCIETÀ CONSORTILE PER AZIONI
    Inventors: Giuseppe D'Angelo, Giorgio Pasquettaz
  • Patent number: 9050685
    Abstract: Described herein is a method for controlling the quality of a laser-welding process, for example, of laser welds of semifinished products constituted by elements of sheet metal of different thickness and/or properties (“tailored blanks”), of the type that comprises the steps of: detecting a radiation (E*) produced in the welding area and issuing signals (E*) indicating said radiation; acquiring and processing said signals (E*) indicating said radiation; making a division into blocks of said signals (E*) indicating said radiation; calculating for each block a block-mean value (u) and a value of block standard deviation (o); and in supplying input values comprising block-mean values (?) and values standard deviation (o) for identifying defects and/or porosities and insufficient penetration.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: June 9, 2015
    Assignee: C.R.F. Societá Consortile per Azioni
    Inventors: Giuseppe D'Angelo, Giorgio Pasquettaz
  • Publication number: 20150022131
    Abstract: Electric circuit for estimating the angular position of a rotor of an electric motor, including: a sensing module configured to receive at least one electric signal representative of a drive current of the electric motor and to generate a measurement signal indicative of a switching of the at least one electric signal and a switching index indicative of the type of switching, rising or falling, of the at least one electric signal; and a computing module configured to supply, from the measurement signal and switching index a position signal representative of an angular position of the electric motor rotor.
    Type: Application
    Filed: June 20, 2014
    Publication date: January 22, 2015
    Applicant: STMicroelectronics S.r.l.
    Inventors: Giuseppe D'Angelo, Giovanni Moselli, Virginia Clemente
  • Patent number: 8805588
    Abstract: An embodiment is a method, and related system, to implement the square root extraction operation, which grants a 32 bits precision, which has high execution speed and is able to process a decimal radicand. An embodiment relates to a method for controlling an electric machine, comprising the detection of the value of at least one electrical quantity characterizing the machine operation and processing the detected value of said electrical quantity. The control method controls the machine operation on the basis of this processing. In particular the processing of the detected value of the electrical quantity comprises calculating a square root of a radicand value related to the detected value of electrical quantities.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: August 12, 2014
    Assignees: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics S.r.l.
    Inventors: Giuseppe D'Angelo, Fabio Marchio′, Giovanni Moselli, Andre Roger
  • Patent number: 8571823
    Abstract: A system and a method for controlling the quality of an industrial process, of the type that comprises the steps of: providing one or more reference signals for the industrial process; acquiring one or more real signals that are indicative of the quality of said industrial process; and comparing said one or more reference signals with said one or more real signals in order to identify defects in said industrial process.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: October 29, 2013
    Assignee: CRF Societa Consortile per Azioni
    Inventors: Giuseppe D'Angelo, Giorgio Pasquettaz, Andrea Terreno
  • Patent number: 8552670
    Abstract: A control circuit controls an electric motor and includes: a measuring device configured to measure a first phase current of the motor and provide a corresponding first analog signal; an analog-to-digital converter structured to convert the first analog signal into a first digital signal; a conversion module for generating a first converted digital signal representative of the first digital signal expressed in a rotating reference system; a node structured to compare the first converted digital signal into a first reference signal and generate a first error signal; and a measure control circuit structured to provide a timing signal of the analog-to-digital converter depending on the first error signal and a time delay introduced by the measuring device.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: October 8, 2013
    Assignee: STMicroelectronics S.r.l.
    Inventors: Giuseppe D'Angelo, Giovanni Moselli, Virginia Clemente, Vincenzo Buccino, Carolina Verde
  • Patent number: 8384582
    Abstract: An active transponder for synthetic aperture radar systems includes a receiving antenna for receiving a first radiofrequency signal modulated according to a first train of one or more first pulses, separating means comprising two outputs outputting the first radiofrequency signal, second processing means connected to a first output of the separating means to generate a code synchronized with the first pulses, signal generating means connected to the second output and to the second processing means generate a second radiofrequency signal modulated by the code, and a transmitting antenna means to transmit the second radiofrequency signal to generate, for each one of the first pulses, a sequence of one or more second pulses, the code being synchronized with the second pulses.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: February 26, 2013
    Assignee: Space Engineering S.p.A.
    Inventors: Giuseppe Chiassarini, Giuseppe D'Angelo
  • Publication number: 20120325785
    Abstract: Described herein is a method for controlling the quality of a laser-welding process, for example, of laser welds of semifinished products constituted by elements of sheet metal of different thickness and/or properties (“tailored blanks”), of the type that comprises the steps of: detecting a radiation (E*) produced in the welding area and issuing signals (E*) indicating said radiation; acquiring and processing said signals (E*) indicating said radiation; making a division into blocks of said signals (E*) indicating said radiation; calculating for each block a block-mean value (u) and a value of block standard deviation (o); and in supplying input values comprising block-mean values (u) and values standard deviation (o) for identifying defects and/or porosities and insufficient penetration.
    Type: Application
    Filed: May 31, 2012
    Publication date: December 27, 2012
    Applicant: C.R.F. Societa Consortile per Azioni
    Inventors: Giuseppe D'Angelo, Giorgio Pasquettaz
  • Publication number: 20120245893
    Abstract: A module for monitoring industrial processes for use in a system for monitoring industrial processes that comprises sensor means (7; 17) for detecting process quantities in a process station (20), acquisition means (8, 32; 32?; 32?) for acquiring measurement signals (R) issued by said sensor means (7; 17), processing means (9; 19) operating on signals (T; T1) generated by said acquisition means (8, 32; 32?; 32?) to obtain information on the quality of the process, and means for managing the production flow (9; 19), which operate on the basis of said information on the quality of the process and are located in a workstation (50) that is remote with respect to said process station, said monitoring module (30) being configured for being set locally at said at least one process station (20) for receiving measurement signals (R) issued by said sensor means (7; 17).
    Type: Application
    Filed: October 27, 2010
    Publication date: September 27, 2012
    Inventors: Giuseppe D'Angelo, Giorgio Pasquettaz, Andrea Terreno
  • Patent number: 8212175
    Abstract: Described herein is a method for controlling the quality of a laser-welding process, for example of laser welds of semifinished products constituted by elements of sheet metal of different thickness and/or properties (“tailored blanks”), of the type that comprises the steps of: detecting a radiation (E*) produced in the welding area (2, 3) and issuing signals (E*) indicating said radiation; acquiring and processing said signals (E*) indicating said radiation; making a division into blocks of said signals (E*) indicating said radiation; calculating (205) for each block a block-mean value (u) and a value of block standard deviation (o); and in supplying input values comprising block-mean values (u) and values standard deviation (o) for identifying defects and/or porosities and insufficient penetration.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: July 3, 2012
    Assignee: C.R.F. Società Consortile per Azioni
    Inventors: Giuseppe D'Angelo, Giorgio Pasquettaz
  • Patent number: 8185773
    Abstract: A processor system having a processor core configured to control an external apparatus in accordance with a control algorithm; a signal acquisition managing device configured to receive state signals provided by the apparatus, perform corresponding actions, and generate corresponding synchronized command signals; and a peripheral module structured to receive the synchronized command signals and generate output signals to be processed by the processor core in accordance with the control algorithm.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: May 22, 2012
    Assignees: STMicroelectronics S.r.l., Freescale Semiconductor, Inc.
    Inventors: Giuseppe D'Angelo, Antonio Anastasio, Leos Chalupa
  • Publication number: 20120025745
    Abstract: A control circuit controls an electric motor and includes: a measuring device configured to measure a first phase current of the motor and provide a corresponding first analog signal; an analog-to-digital converter structured to convert the first analog signal into a first digital signal; a conversion module for generating a first converted digital signal representative of the first digital signal expressed in a rotating reference system; a node structured to compare the first converted digital signal into a first reference signal and generate a first error signal; and a measure control circuit structured to provide a timing signal of the analog-to-digital converter depending on the first error signal and a time delay introduced by the measuring device.
    Type: Application
    Filed: July 26, 2011
    Publication date: February 2, 2012
    Applicant: STMICROELECTRONICS S.R.L.
    Inventors: Giuseppe D'Angelo, Giovanni Moselli, Virginia Clemente, Vincenzo Buccino, Carolina Verde
  • Publication number: 20110192828
    Abstract: Described herein is a system for monitoring arc-welding processes, comprising arc-voltage sensor means (21) and arc-current sensor means (22), means (23) for acquisition of voltage values (V) measured by said arc-voltage sensor means (21) and of current values (I) measured by said arc-current sensor means (22), and processing means (25) configured for processing said voltage values (V) and said current values (I) for calculating one or more vectors of time values (Ton[j]; TonV[j), TonI[j]) corresponding to a state of arc of the arc-welding process, According to the invention, said processing means (25) are configured for executing the operations of: calculating reference values (TssupV, TsinfV, TssupI, TsinfI) of arc time (Ton[j]; TonV[j), TonI[j]) via the steps of: calculating a statistical distribution of respective arc-time vectors (Ton[j]; TonV[j), TonI[j]) obtained from voltage values (V) and from current values (I), measured during execution of one or more reference welds; and calculating as referen
    Type: Application
    Filed: February 10, 2010
    Publication date: August 11, 2011
    Inventors: Giuseppe D'angelo, Giorge Pasquettaz, Andrea Terreno
  • Publication number: 20110160912
    Abstract: An embodiment is a method, and related system, to implement the square root extraction operation, which grants a 32 bits precision, which has high execution speed and is able to process a decimal radicand. An embodiment relates to a method for controlling an electric machine, comprising the detection of the value of at least one electrical quantity characterizing the machine operation and processing the detected value of said electrical quantity. The control method controls the machine operation on the basis of this processing. In particular the processing of the detected value of the electrical quantity comprises calculating a square root of a radicand value related to the detected value of electrical quantities.
    Type: Application
    Filed: December 23, 2010
    Publication date: June 30, 2011
    Applicants: STMICROELECTRONICS S.R.L., STMICROELECTRONICS (GRENOBLE 2) SAS
    Inventors: Giuseppe D'ANGELO, Fabio MARCHIO', Giovanni MOSELLI, Andre ROGER
  • Patent number: 7831402
    Abstract: A method for estimating values assumed at a certain instant of each period by currents flowing respectively in two distinct windings of a poly-phase load controlled in a space vector modulation (SVM) mode, using a same measuring device, may include coupling the measuring device to the first winding and measuring a current flowing therethrough with an anticipation from the certain instant smaller than or equal to an SVM half-period. The method may also include coupling the measuring device to the second winding, measuring a current flowing therethrough at the certain instant, coupling the measuring device to the first winding, and measuring a current flowing therethrough with a delay equal to the anticipation. The method may also include estimating a value assumed at the certain instant by the current flowing through the first winding based upon the two measured values with the anticipation and with the delay respectively.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: November 9, 2010
    Assignee: STMicroelectronics S.R.L.
    Inventors: Giuseppe D'Angelo, Giovanni Moselli
  • Publication number: 20100228377
    Abstract: A system and a method for controlling the quality of an industrial process, of the type that comprises the steps of: providing one or more reference signals for the industrial process; acquiring one or more real signals that are indicative of the quality of said industrial process; and comparing said one or more reference signals with said one or more real signals in order to identify defects in said industrial process.
    Type: Application
    Filed: March 16, 2010
    Publication date: September 9, 2010
    Applicant: C.R.F. SOCIETA CONSORTILE PER AZIONI
    Inventors: Giuseppe D'ANGELO, Giorgio PASQUETTAZ, Andrea TERRENO
  • Patent number: 7786686
    Abstract: A method is for estimating an angular position of a rotor of a motor having position sensors along the circumference of a stator and generating digital signals that switch each time the rotor crosses certain angular positions. The method includes storing rotor angular positions at every digital signal switching, and determining for each rotor revolution a time interval elapsed between a current and a precedent switching edge of the signal generated. The method also includes estimating the angular position during a current rotor revolution by identifying which position sensor generated the last detected switching edge. The corresponding angular position and the time interval elapsed between two consecutive rotor crossings, through a same angular position, correspond to a sum between the angular position and a product between a fraction of the time interval elapsed from the corresponding precedent switching edge multiplied by 360° and a number of polar pairs.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: August 31, 2010
    Assignee: STMicroelectronics S.R.L.
    Inventors: Giuseppe D'Angelo, Giovanni Moselli, Stefano Baratto