Patents by Inventor Enrico Pozzati
Enrico Pozzati 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).
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Patent number: 10473731Abstract: A reading circuit for a magnetic-field sensor, provided with a detection structure generating an electrical detection signal as a function of an external magnetic field, has a signal-conditioning stage, which is electrically coupled to the detection structure and generates an output signal as a function of the electrical detection signal; the reading circuit is provided with a full-scale-control stage that is able to select automatically a full-scale value for the signal-conditioning stage, as a function of the value of the external magnetic field, such as to prevent saturation of the same conditioning stage.Type: GrantFiled: November 22, 2011Date of Patent: November 12, 2019Assignee: STMICROELECTRONICS S.R.L.Inventors: Carlo Alberto Romani, Enrico Pozzati, Fabio Bottinelli
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Reading circuit for a magnetic field sensor with sensititivy calibration, and related reading method
Patent number: 9360533Abstract: A reading circuit for a magnetic-field sensor, generating an electrical detection quantity as a function of a detected magnetic field and of a detection sensitivity, is provided with an amplification stage, which is coupled to the magnetic-field sensor and generates an output signal as a function of the electrical detection quantity. In particular, the reading circuit is provided with a calibration stage, integrated with the amplification stage and configured so as to control a feedback loop in such a way as to compensate a variation of the detection sensitivity with respect to a nominal sensitivity value.Type: GrantFiled: August 24, 2015Date of Patent: June 7, 2016Assignee: STMicroelectronics S.r.l.Inventors: Carlo Alberto Romani, Enrico Pozzati, Fabio Bottinelli -
Patent number: 9279867Abstract: Described herein is a biasing circuit for a magnetic-field sensor; the magnetic-field sensor is provided with a first detection structure, which generates a first electrical detection quantity as a function of a first component of an external magnetic field, and a second detection structure, which generates a second electrical detection quantity as a function of a second component of an external magnetic field. The biasing circuit electrically supplies the first detection structure and the second detection structure in respective biasing time intervals, at least partially distinct from one another, which preferably do not temporally overlap one other.Type: GrantFiled: March 26, 2015Date of Patent: March 8, 2016Assignee: STMicroelectronics S.r.l.Inventors: Enrico Pozzati, Carlo Alberto Romani, Fabio Bottinelli
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READING CIRCUIT FOR A MAGNETIC FIELD SENSOR WITH SENSITITIVY CALIBRATION, AND RELATED READING METHOD
Publication number: 20150362563Abstract: A reading circuit for a magnetic-field sensor, generating an electrical detection quantity as a function of a detected magnetic field and of a detection sensitivity, is provided with an amplification stage, which is coupled to the magnetic-field sensor and generates an output signal as a function of the electrical detection quantity. In particular, the reading circuit is provided with a calibration stage, integrated with the amplification stage and configured so as to control a feedback loop in such a way as to compensate a variation of the detection sensitivity with respect to a nominal sensitivity value.Type: ApplicationFiled: August 24, 2015Publication date: December 17, 2015Inventors: Carlo Alberto Romani, Enrico Pozzati, Fabio Bottinelli -
Reading circuit for a magnetic field sensor with sensitivity calibration, and related reading method
Patent number: 9151806Abstract: A reading circuit for a magnetic-field sensor, generating an electrical detection quantity as a function of a detected magnetic field and of a detection sensitivity, is provided with an amplification stage, which is coupled to the magnetic-field sensor and generates an output signal as a function of the electrical detection quantity and of an amplification gain. In particular, the amplification gain is electronically selectable, and the reading circuit is moreover provided with a calibration stage, integrated with the amplification stage and configured so as to vary a value of the amplification gain in such a way as to compensate a variation of the detection sensitivity with respect to a nominal sensitivity value.Type: GrantFiled: March 19, 2015Date of Patent: October 6, 2015Assignee: STMicroelectronics S.r.l.Inventors: Carlo Alberto Romani, Enrico Pozzati, Fabio Bottinelli -
Publication number: 20150198680Abstract: Described herein is a biasing circuit for a magnetic-field sensor; the magnetic-field sensor is provided with a first detection structure, which generates a first electrical detection quantity as a function of a first component of an external magnetic field, and a second detection structure, which generates a second electrical detection quantity as a function of a second component of an external magnetic field. The biasing circuit electrically supplies the first detection structure and the second detection structure in respective biasing time intervals, at least partially distinct from one another, which preferably do not temporally overlap one other.Type: ApplicationFiled: March 26, 2015Publication date: July 16, 2015Inventors: Enrico Pozzati, Carlo Alberto Romani, Fabio Bottinelli
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READING CIRCUIT FOR A MAGNETIC FIELD SENSOR WITH SENSITIVITY CALIBRATION, AND RELATED READING METHOD
Publication number: 20150192644Abstract: A reading circuit for a magnetic-field sensor, generating an electrical detection quantity as a function of a detected magnetic field and of a detection sensitivity, is provided with an amplification stage, which is coupled to the magnetic-field sensor and generates an output signal as a function of the electrical detection quantity and of an amplification gain. In particular, the amplification gain is electronically selectable, and the reading circuit is moreover provided with a calibration stage, integrated with the amplification stage and configured so as to vary a value of the amplification gain in such a way as to compensate a variation of the detection sensitivity with respect to a nominal sensitivity value.Type: ApplicationFiled: March 19, 2015Publication date: July 9, 2015Inventors: Carlo Alberto Romani, Enrico Pozzati, Fabio Bottinelli -
Patent number: 9018941Abstract: Described herein is a biasing circuit for a magnetic-field sensor; the magnetic-field sensor is provided with a first detection structure, which generates a first electrical detection quantity as a function of a first component of an external magnetic field, and a second detection structure, which generates a second electrical detection quantity as a function of a second component of an external magnetic field. The biasing circuit electrically supplies the first detection structure and the second detection structure in respective biasing time intervals, at least partially distinct from one another, which preferably do not temporally overlap one other.Type: GrantFiled: December 20, 2011Date of Patent: April 28, 2015Assignee: STMicroelectronics S.r.l.Inventors: Enrico Pozzati, Carlo Alberto Romani, Fabio Bottinelli
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Reading circuit for a magnetic field sensor with sensitivity calibration, and related reading method
Patent number: 9013175Abstract: A reading circuit for a magnetic-field sensor, generating an electrical detection quantity as a function of a detected magnetic field and of a detection sensitivity, is provided with an amplification stage, which is coupled to the magnetic-field sensor and generates an output signal as a function of the electrical detection quantity and of an amplification gain. In particular, the amplification gain is electronically selectable, and the reading circuit is moreover provided with a calibration stage, integrated with the amplification stage and configured so as to vary a value of the amplification gain in such a way as to compensate a variation of the detection sensitivity with respect to a nominal sensitivity value.Type: GrantFiled: November 22, 2011Date of Patent: April 21, 2015Assignee: STMicroelectronics S.r.l.Inventors: Carlo Alberto Romani, Enrico Pozzati, Fabio Bottinelli -
Patent number: 8981773Abstract: A magnetic-field sensor adapted to detect an external magnetic field. The magnetic-field sensor including a first chip, having a first magnetoresistive structure for detection of the external magnetic field, the first magnetoresistive detection structure including an electrical-contact pad and magnetoresistive element, and a second chip housing an integrated electronic circuit and a magnetic-field generator. The first and second chips being mutually arranged in such a way that the integrated electronic circuit can be electrically coupled to the electrical-contact pad of the magnetoresistive structure and in such a way that the magnetic-field generator can be magnetically coupled to the magnetoresistive structure.Type: GrantFiled: December 27, 2011Date of Patent: March 17, 2015Assignee: STMicroelectronics S.r.l.Inventors: Enrico Pozzati, Fabio Bottinelli, Carlo Alberto Romani
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Publication number: 20120161759Abstract: A magnetic-field sensor adapted to detect an external magnetic field, comprising: a first chip, including a first magnetoresistive structure for detection of the external magnetic field, the first magnetoresistive detection structure including an electrical-contact pad and magnetoresistive means; and a second chip housing an integrated electronic circuit and a magnetic-field generator, the first and second chips being mutually arranged in such a way that the integrated electronic circuit can be electrically coupled to the electrical-contact pad of the magnetoresistive structure and in such a way that the magnetic-field generator can be magnetically coupled to the magnetoresistive structure.Type: ApplicationFiled: December 27, 2011Publication date: June 28, 2012Applicant: STMICROELECTRONICS S.R.L.Inventors: Enrico Pozzati, Fabio Bottinelli, Carlo Alberto Romani
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Publication number: 20120158324Abstract: A reading circuit for a magnetic-field sensor, provided with a detection structure generating an electrical detection signal as a function of an external magnetic field, has a signal-conditioning stage, which is electrically coupled to the detection structure and generates an output signal as a function of the electrical detection signal; the reading circuit is provided with a full-scale-control stage that is able to select automatically a full-scale value for the signal-conditioning stage, as a function of the value of the external magnetic field, such as to prevent saturation of the same conditioning stage.Type: ApplicationFiled: November 22, 2011Publication date: June 21, 2012Applicant: STMICROELECTRONICS S.R.LInventors: Carlo Alberto Romani, Enrico Pozzati, Fabio Bottinelli
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READING CIRCUIT FOR A MAGNETIC FIELD SENSOR WITH SENSITIVITY CALIBRATION, AND RELATED READING METHOD
Publication number: 20120153936Abstract: A reading circuit for a magnetic-field sensor, generating an electrical detection quantity as a function of a detected magnetic field and of a detection sensitivity, is provided with an amplification stage, which is coupled to the magnetic-field sensor and generates an output signal as a function of the electrical detection quantity and of an amplification gain. In particular, the amplification gain is electronically selectable, and the reading circuit is moreover provided with a calibration stage, integrated with the amplification stage and configured so as to vary a value of the amplification gain in such a way as to compensate a variation of the detection sensitivity with respect to a nominal sensitivity value.Type: ApplicationFiled: November 22, 2011Publication date: June 21, 2012Applicant: STMICROELECTRONICS S.R.LInventors: Carlo Alberto Romani, Enrico Pozzati, Fabio Bottinelli -
Publication number: 20120153937Abstract: Described herein is a biasing circuit for a magnetic-field sensor; the magnetic-field sensor is provided with a first detection structure, which generates a first electrical detection quantity as a function of a first component of an external magnetic field, and a second detection structure, which generates a second electrical detection quantity as a function of a second component of an external magnetic field. The biasing circuit electrically supplies the first detection structure and the second detection structure in respective biasing time intervals, at least partially distinct from one another, which preferably do not temporally overlap one other.Type: ApplicationFiled: December 20, 2011Publication date: June 21, 2012Applicant: STMICROELECTRONICS S.R.L.Inventors: Enrico Pozzati, Carlo Alberto Romani, Fabio Bottinelli