Patents by Inventor Franck Strazzieri
Franck Strazzieri 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: 8471636Abstract: A bias current is generated for an unbalanced differential pair that is proportional to the transconductance gain of the differential pair. When the transconductance gain varies (e.g., due to temperature variations), the bias current varies in proportion thereby maintaining a constant offset voltage. In some implementations, a voltage to current converter circuit generates the bias current from a constant reference voltage that is independent of temperature and voltage supply variations (e.g., a bandgap reference voltage).Type: GrantFiled: March 7, 2012Date of Patent: June 25, 2013Assignee: Atmel Rousset S.A.S.Inventors: Jimmy Fort, Thierry Soude, Michel Cuenca, Florent Garcia, Franck Strazzieri
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Publication number: 20120161873Abstract: A bias current is generated for an unbalanced differential pair that is proportional to the transconductance gain of the differential pair. When the transconductance gain varies (e.g., due to temperature variations), the bias current varies in proportion thereby maintaining a constant offset voltage. In some implementations, a voltage to current converter circuit generates the bias current from a constant reference voltage that is independent of temperature and voltage supply variations (e.g., a bandgap reference voltage).Type: ApplicationFiled: March 7, 2012Publication date: June 28, 2012Applicant: ATMEL ROUSSET S.A.S.Inventors: Jimmy Fort, Thierry Soude, Michel Cuenca, Florent Garcia, Franck Strazzieri
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Patent number: 8183922Abstract: A bias current is generated for an unbalanced differential pair that is proportional to the transconductance gain of the differential pair. When the transconductance gain varies (e.g., due to temperature variations), the bias current varies in proportion thereby maintaining a constant offset voltage. In some implementations, a voltage to current converter circuit generates the bias current from a constant reference voltage that is independent of temperature and voltage supply variations (e.g., a bandgap reference voltage).Type: GrantFiled: November 17, 2009Date of Patent: May 22, 2012Assignee: Atmei Rousset S.A.S.Inventors: Jimmy Fort, Thierry Soude, Michel Cuenca, Florent Garcia, Franck Strazzieri
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Patent number: 8169241Abstract: Embodiments of a proportional phase comparator and method for aligning digital signals are generally described herein. In some embodiments, circuitry to align digital signals comprises a proportional phase comparator that generates triangular-shaped pulses for application to a charge pump. The triangular-shaped pulses may reduce an amount of charge injection in the charge pump close to convergence.Type: GrantFiled: January 15, 2008Date of Patent: May 1, 2012Assignee: Atmel Rousset S.A.S.Inventors: Franck Strazzieri, Florent Garcia
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Publication number: 20110115560Abstract: A bias current is generated for an unbalanced differential pair that is proportional to the transconductance gain of the differential pair. When the transconductance gain varies (e.g., due to temperature variations), the bias current varies in proportion thereby maintaining a constant offset voltage. In some implementations, a voltage to current converter circuit generates the bias current from a constant reference voltage that is independent of temperature and voltage supply variations (e.g., a bandgap reference voltage).Type: ApplicationFiled: November 17, 2009Publication date: May 19, 2011Applicant: ATMEL ROUSSET SASInventors: Jimmy Fort, Thierry Soude, Michel Cuenca, Florent Garcia, Franck Strazzieri
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Publication number: 20100085091Abstract: Embodiments of a proportional phase comparator and method for aligning digital signals are generally described herein. In some embodiments, circuitry to align digital signals comprises a proportional phase comparator that generates triangular-shaped pulses for application to a charge pump. The triangular-shaped pulses may reduce an amount of charge injection in the charge pump close to convergence.Type: ApplicationFiled: January 15, 2008Publication date: April 8, 2010Inventors: Franck Strazzieri, Florent Garcia
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Patent number: 7692453Abstract: A differential threshold voltage level detection circuit receives a differential voltage pair as an input, applying each component of the differential pair to an individual voltage shifting circuit. Each voltage shifting circuit is configured with a regulated current producing a shifted and a non-shifted version in-phase. For a shifted set of output differential voltages, the shift magnitude is proportional to the current entering a shifting circuit and is configured to be less than a peak-to-peak magnitude of the differential voltage to be detected. A current mirror within the detector contains a current reference configured to produce a current to be passed through a voltage generator. The current magnitude is sufficient to generate a regulated voltage output to the two current regulating devices that supply the voltage shifting circuits. An overlap detector receiving both differential voltage pairs produces a signal indicating an input is at a detection threshold.Type: GrantFiled: May 3, 2007Date of Patent: April 6, 2010Assignee: Atmel CorporationInventors: Sami Ajram, Franck Strazzieri, Florent Garcia
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Publication number: 20070200599Abstract: A differential threshold voltage level detection circuit receives a differential voltage pair as an input, applying each component of the differential pair to an individual voltage shifting circuit. Each voltage shifting circuit is configured with a regulated current producing a shifted and a non-shifted version in-phase. For a shifted set of output differential voltages, the shift magnitude is proportional to the current entering a shifting circuit and is configured to be less than a peak-to-peak magnitude of the differential voltage to be detected. A current mirror within the detector contains a current reference configured to produce a current to be passed through a voltage generator. The current magnitude is sufficient to generate a regulated voltage output to the two current regulating devices that supply the voltage shifting circuits. An overlap detector receiving both differential voltage pairs produces a signal indicating an input is at a detection threshold.Type: ApplicationFiled: May 3, 2007Publication date: August 30, 2007Applicant: ATMEL CORPORATIONInventors: Sami Ajram, Franck Strazzieri, Florent Garcia
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Patent number: 7227399Abstract: A differential threshold voltage level detection circuit receives a differential voltage pair as an input, applying each component of the differential pair to an individual voltage shifting circuit. Each voltage shifting circuit is configured with a regulated current producing a shifted and a non-shifted version in-phase. For a shifted set of output differential voltages, the shift magnitude is proportional to the current entering a shifting circuit and is configured to be less than a peak-to-peak magnitude of the differential voltage to be detected. A current mirror within the detector contains a current reference configured to produce a current to be passed through a voltage generator. The current magnitude is sufficient to generate a regulated voltage output to the two current regulating devices that supply the voltage shifting circuits. An overlap detector receiving both differential voltage pairs produces a signal indicating an input is at a detection threshold.Type: GrantFiled: August 11, 2004Date of Patent: June 5, 2007Assignee: Atmel CorporationInventors: Sami Ajram, Franck Strazzieri, Florent Garcia
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Publication number: 20050218958Abstract: A differential threshold voltage level detection circuit receives a differential voltage pair as an input, applying each component of the differential pair to an individual voltage shifting circuit. Each voltage shifting circuit is configured with a regulated current producing a shifted and a non-shifted version in-phase. For a shifted set of output differential voltages, the shift magnitude is proportional to the current entering a shifting circuit and is configured to be less than a peak-to-peak magnitude of the differential voltage to be detected. A current mirror within the detector contains a current reference configured to produce a current to be passed through a voltage generator. The current magnitude is sufficient to generate a regulated voltage output to the two current regulating devices that supply the voltage shifting circuits. An overlap detector receiving both differential voltage pairs produces a signal indicating an input is at a detection threshold.Type: ApplicationFiled: August 11, 2004Publication date: October 6, 2005Inventors: Sami Ajram, Franck Strazzieri, Florent Garcia