Patents by Inventor Massimiliano Frulio

Massimiliano Frulio 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: 7379338
    Abstract: Regulating a program voltage value during multilevel memory device programming includes utilizing a program path duplicate in an output pump regulator circuit. Further, the output pump regulator circuit is utilized to provide a regulated program voltage for memory cell programming, the regulated program voltage correcting for a program path voltage drop.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: May 27, 2008
    Assignee: Atmel Corporation
    Inventors: Massimiliano Frulio, Simone Bartoli, Davide Manfre′, Andrea Sacco
  • Patent number: 7301814
    Abstract: A system and method for avoiding offset in and reducing the footprint of a non-volatile memory that has a plurality of memory bank circuits. Each memory bank circuit has memory cells coupled to sense amplifiers, row and column decoders coupled to the memory cells, and bias circuits coupled to the sense amplifiers. The system includes a reference cell matrix coupled to each of the plurality of memory bank circuits. The reference cell matrix is configured to provide reference cell current for each of the plurality of memory bank circuits.
    Type: Grant
    Filed: May 11, 2005
    Date of Patent: November 27, 2007
    Assignee: Atmel Corporation
    Inventors: Massimiliano Frulio, Riccardo Riva Reggiori, Andrea Sacco, Luca Figini
  • Patent number: 7269058
    Abstract: A system and method for preserving an error margin for a non-volatile memory that includes a memory cell, a reference cell coupled to a reference current mirror configured to mirror current through the reference cell. The system comprises a memory current mirror coupled to the memory cell and configured to mirror current through the memory cell. A sense amplifier has a first and a second input. The first input is coupled to the reference current mirror and the second input is coupled to the memory current mirror. The sense amplifier is configured to compare a voltage across the memory cell with a voltage across the reference cell.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: September 11, 2007
    Assignee: Atmel Corporation
    Inventors: Massimiliano Frulio, Fabio Tassan Caser, Lorenzo Bedarida, Mirella Marsella
  • Publication number: 20070076476
    Abstract: Regulating a program voltage value during multilevel memory device programming includes utilizing a program path duplicate in an output pump regulator circuit. Further, the output pump regulator circuit is utilized to provide a regulated program voltage for memory cell programming, the regulated program voltage correcting for a program path voltage drop.
    Type: Application
    Filed: December 7, 2006
    Publication date: April 5, 2007
    Inventors: Massimiliano Frulio, Simone Bartoli, Davide Manfre', Andrea Sacco
  • Patent number: 7184311
    Abstract: Regulating a program voltage value during multilevel memory device programming includes utilizing a program path duplicate in an output pump regulator circuit. Further, the output pump regulator circuit is utilized to provide a regulated program voltage for memory cell programming, the regulated program voltage correcting for a program path voltage drop and compensating for temperature variation.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: February 27, 2007
    Assignee: Atmel Corporation
    Inventors: Massimiliano Frulio, Simone Bartoli, Davide Manfre′, Andrea Sacco
  • Patent number: 7158415
    Abstract: An embedded circuit in a memory device is used in place of an external test device to perform time-consuming tasks such as voltage verification during the setting of reference cells. An external test device programs at least one reference cell to a predetermined value. The embedded circuit uses the cell programmed by the external device as a comparative reference to program additional reference cells.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: January 2, 2007
    Assignee: Atmel Corporation
    Inventors: Lorenzo Bedarida, Simone Bartoli, Stefano Surico, Massimiliano Frulio
  • Publication number: 20060140030
    Abstract: An embedded circuit in a memory device is used in place of an external test device to perform time-consuming tasks such as voltage verification during the setting of reference cells. An external test device programs at least one reference cell to a predetermined value. The embedded circuit uses the cell programmed by the external device as a comparative reference to program additional reference cells.
    Type: Application
    Filed: March 24, 2005
    Publication date: June 29, 2006
    Inventors: Lorenzo Bedarida, Simone Bartoli, Stefano Surico, Massimiliano Frulio
  • Publication number: 20060114721
    Abstract: Regulating a program voltage value during multilevel memory device programming includes utilizing a program path duplicate in an output pump regulator circuit. Further, the output pump regulator circuit is utilized to provide a regulated program voltage for memory cell programming, the regulated program voltage correcting for a program path voltage drop and compensating for temperature variation.
    Type: Application
    Filed: May 5, 2005
    Publication date: June 1, 2006
    Inventors: Massimiliano Frulio, Simone Bartoli, Davide Manfre, Andrea Sacco
  • Patent number: 7049880
    Abstract: A regulated charge pump circuit having two-way switching means that switches between a first feedback pathway that provides a precise and stable voltage output and a second feedback pathway that provides a regulated voltage output with low current consumption from the power source. The first feedback pathway maintains a precise voltage output by regulating a pass device that draws current to the voltage output. The second feedback pathway regulates the voltage output by controlling the connection of a clock input to the charge pump. A variable resistor is used to set the regulated level of the voltage output. A digital-to analog converter is formed by using a combination logic circuit to convert a digital input signal to a control signal for the variable resistor.
    Type: Grant
    Filed: May 2, 2005
    Date of Patent: May 23, 2006
    Assignee: Atmel Corporation
    Inventors: Stefano Sivero, Lorenzo Bedarida, Massimiliano Frulio
  • Publication number: 20060083097
    Abstract: A method and system for providing a multi-bank memory is described. The method and system include providing a plurality of banks. Each of the plurality of banks includes at least one array including a plurality of memory cells and analog sensing circuitry. The method and system further include providing common digital sensing circuitry coupled with the plurality of banks.
    Type: Application
    Filed: May 5, 2005
    Publication date: April 20, 2006
    Inventors: Massimiliano Frulio, Stefano Sivero, Fabio Tassan Caser, Mauro Chinosi
  • Publication number: 20060077709
    Abstract: A system and method for avoiding offset in and reducing the footprint of a non-volatile memory that has a plurality of memory bank circuits. Each memory bank circuit has memory cells coupled to sense amplifiers, row and column decoders coupled to the memory cells, and bias circuits coupled to the sense amplifiers. The system includes a reference cell matrix coupled to each of the plurality of memory bank circuits. The reference cell matrix is configured to provide reference cell current for each of the plurality of memory bank circuits.
    Type: Application
    Filed: May 11, 2005
    Publication date: April 13, 2006
    Inventors: Massimiliano Frulio, Riccardo Reggiori, Andrea Sacco, Luca Figini
  • Publication number: 20060044885
    Abstract: A system and method for preserving an error margin for a non-volatile memory that includes a memory cell, a reference cell coupled to a reference current mirror configured to mirror current through the reference cell. The system comprises a memory current mirror coupled to the memory cell and configured to mirror current through the memory cell. A sense amplifier has a first and a second input. The first input is coupled to the reference current mirror and the second input is coupled to the memory current mirror. The sense amplifier is configured to compare a voltage across the memory cell with a voltage across the reference cell.
    Type: Application
    Filed: May 9, 2005
    Publication date: March 2, 2006
    Inventors: Massimiliano Frulio, Fabio Tassan Caser, Lorenzo Bedarida, Mirella Marsella
  • Patent number: 6954102
    Abstract: A memory cell sensing circuit to sense data from a memory cell includes a reference memory cell coupled to pass a reference current. A sense amplifier has a first input and a second input coupled to a bias circuit of the data memory cell. A first mirror mirrors the reference current to a voltage coupled to the first input of the sense amplifier. A second mirror mirrors the reference current to a voltage coupled to the bias circuit of the data memory cell. A third mirror mirrors the reference current to a voltage coupled to the second input of the sense amplifier through a pass gate.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: October 11, 2005
    Assignee: Atmel Corporation
    Inventors: Lorenzo Bedarida, Andrea Sacco, Mirella Marsella, Massimiliano Frulio
  • Publication number: 20050189983
    Abstract: A regulated charge pump circuit having two-way switching means that switches between a first feedback pathway that provides a precise and stable voltage output and a second feedback pathway that provides a regulated voltage output with low current consumption from the power source. The first feedback pathway maintains a precise voltage output by regulating a pass device that draws current to the voltage output. The second feedback pathway regulates the voltage output by controlling the connection of a clock input to the charge pump. A variable resistor is used to set the regulated level of the voltage output. A digital-to analog converter is formed by using a combination logic circuit to convert a digital input signal to a control signal for the variable resistor.
    Type: Application
    Filed: May 2, 2005
    Publication date: September 1, 2005
    Inventors: Stefano Sivero, Lorenzo Bedarida, Massimiliano Frulio
  • Patent number: 6906576
    Abstract: A regulated charge pump circuit having two-way switching means that switches between a first feedback pathway that provides a precise and stable voltage output and a second feedback pathway that provides a regulated voltage output with low current consumption from the power source. The first feedback pathway maintains a precise voltage output by regulating a pass device that draws current to the voltage output. The second feedback pathway regulates the voltage output by controlling the connection of a clock input to the charge pump. A variable resistor is used to set the regulated level of the voltage output. A digital-to analog converter is formed by using a combination logic circuit to convert a digital input signal to a control signal for the variable resistor.
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: June 14, 2005
    Assignee: Atmel Corporation
    Inventors: Stefano Sivero, Lorenzo Bedarida, Massimiliano Frulio
  • Publication number: 20050073355
    Abstract: A regulated charge pump circuit having two-way switching means that switches between a first feedback pathway that provides a precise and stable voltage output and a second feedback pathway that provides a regulated voltage output with low current consumption from the power source. The first feedback pathway maintains a precise voltage output by regulating a pass device that draws current to the voltage output. The second feedback pathway regulates the voltage output by controlling the connection of a clock input to the charge pump. A variable resistor is used to set the regulated level of the voltage output. A digital-to analog converter is formed by using a combination logic circuit to convert a digital input signal to a control signal for the variable resistor.
    Type: Application
    Filed: January 7, 2004
    Publication date: April 7, 2005
    Inventors: Stefano Sivero, Lorenzo Bedarida, Massimiliano Frulio
  • Publication number: 20040257131
    Abstract: A regenerative clock repeater comprises an edge detector and an output driver means to produce the clock signal by recovering its high logical level and low logical level. The output driver means further comprises a pull-up and a pull-down circuitry adapted to receive a pair of control signals. These control signals are generated by the edge detector to sense the rising edge and falling edge of the clock signal. Inside the edge detector, a pair of threshold level detectors detect a high and a low logical level of the clock signal and inputs the results to a combination of logic gates and a latch to keep the locations of the signal markers fixed. These fixed-location of control signals trigger the output driver means to recover the high logical level and the low logical level of said clock signal.
    Type: Application
    Filed: September 17, 2003
    Publication date: December 23, 2004
    Inventors: Stefano Sivero, Massimiliano Frulio
  • Patent number: 6831499
    Abstract: An n-channel MOS transistor negative-voltage charge pump is disclosed in which the bulks of the n-channel MOS transistors are biased in such a manner as to prevent turning on the parasitic bipolar transistor inherent in the CMOS environment of the charge pump structure.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: December 14, 2004
    Assignee: Atmel Corporation
    Inventors: Giorgio Oddone, Massimiliano Frulio, Luca Figini, Fabio Tassan Caser
  • Patent number: 6771200
    Abstract: A DAC-based voltage regulator system for a non-volatile memory device comprises a charge pump circuit having an enable input and a voltage output node. A voltage-to-current converter has an input coupled to the voltage output node and an output coupled to a virtual ground node. A current source is coupled to the virtual ground node and sinks one of a plurality of currents in response to states of a plurality of digital input signals. A transconductance amplifier has an inverting input at the virtual ground node, a non-inverting input coupled to a reference voltage potential, and an output. A comparator has a first input coupled to the output of the transconductance amplifier, a second input coupled to a reference voltage potential, and an output coupled to the enable input of said charge pump.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: August 3, 2004
    Assignee: Atmel Corporation
    Inventors: Massimiliano Frulio, Stefano Sivero, Simone Bartozi, Sabina Mognoni
  • Publication number: 20040057259
    Abstract: An n-channel MOS transistor negative-voltage charge pump is disclosed in which the bulks of the n-channel MOS transistors are biased in such a manner as to prevent turning on the parasitic bipolar transistor inherent in the CMOS environment of the charge pump structure.
    Type: Application
    Filed: April 3, 2003
    Publication date: March 25, 2004
    Applicant: Atmel Corporation, a Delaware Corporation
    Inventors: Giorgio Oddone, Massimiliano Frulio, Luca Figini, Fabio Tassan Caser