Patents by Inventor Renald Boulestin
Renald Boulestin 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: 11714445Abstract: In an embodiment an electronic device includes a first MOS-type transistor and a second MOS-type transistor connected as current mirrors, wherein the first transistor is diode connected and a first circuit configured to provide a first current equal to a first gate current of the first transistor multiplied by a size ratio of the first and second transistors.Type: GrantFiled: June 29, 2022Date of Patent: August 1, 2023Assignee: STMicroelectronics (Grenoble 2) SASInventor: Renald Boulestin
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Publication number: 20230054214Abstract: A current mirror circuit includes a first MOS-type transistor and a second MOS-type transistor assembled as a current mirror, wherein the first transistor has a first gate length different from a second gate length of the second transistor.Type: ApplicationFiled: August 25, 2022Publication date: February 23, 2023Inventor: Renald Boulestin
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Patent number: 11575374Abstract: The present disclosure concerns a device for supplying an adjustable current configured to supply discrete values of the current belonging to different current ranges, with a pitch between two successive discrete values determined by that of said ranges to which each of the two successive discrete values belongs.Type: GrantFiled: May 5, 2020Date of Patent: February 7, 2023Assignee: STMicroelectronics (Grenoble 2) SASInventor: Renald Boulestin
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Publication number: 20230004183Abstract: In an embodiment an electronic device includes a first MOS-type transistor and a second MOS-type transistor connected as current mirrors, wherein the first transistor is diode connected and a first circuit configured to provide a first current equal to a first gate current of the first transistor multiplied by a size ratio of the first and second transistors.Type: ApplicationFiled: June 29, 2022Publication date: January 5, 2023Inventor: Renald Boulestin
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Patent number: 11283441Abstract: A device operate by alternating between first and second phases of operation. The device includes a first transistor and a first circuit. The first circuit operates to: couple a first conduction terminal of the first transistor to an output node of the device and a second conduction terminal of the first transistor to a first node of application of a potential during each first phase; and couple the first terminal of the first transistor to a second node of application of a potential and the second conduction terminal of the first transistor to the output node during each second phase of operation.Type: GrantFiled: April 9, 2021Date of Patent: March 22, 2022Assignee: STMicroelectronics (Grenoble 2) SASInventor: Renald Boulestin
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Publication number: 20210344339Abstract: A device operate by alternating between first and second phases of operation. The device includes a first transistor and a first circuit. The first circuit operates to: couple a first conduction terminal of the first transistor to an output node of the device and a second conduction terminal of the first transistor to a first node of application of a potential during each first phase; and couple the first terminal of the first transistor to a second node of application of a potential and the second conduction terminal of the first transistor to the output node during each second phase of operation.Type: ApplicationFiled: April 9, 2021Publication date: November 4, 2021Applicant: STMicroelectronics (Grenoble 2) SASInventor: Renald BOULESTIN
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Patent number: 11128273Abstract: A variable-gain amplifier includes two amplification and attenuation branches, and first and a second resistive elements that are coupled between the two branches. Each branch includes a voltage follower stage and a configurable amplification stage. The voltage follower stages are intended to receive a differential signal and are configured to deliver, via the first resistive element, an intermediate differential current signal. The amplification stages are intended to receive the intermediate differential current signal and a digital control word, and are configured to deliver, via the second resistive element, an output differential voltage signal depending on the value of the digital control word.Type: GrantFiled: August 20, 2019Date of Patent: September 21, 2021Assignee: STMicroelectronics SAInventor: Renald Boulestin
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Publication number: 20200373922Abstract: The present disclosure concerns a device for supplying an adjustable current configured to supply discrete values of the current belonging to different current ranges, with a pitch between two successive discrete values determined by that of said ranges to which each of the two successive discrete values belongs.Type: ApplicationFiled: May 5, 2020Publication date: November 26, 2020Inventor: Renald Boulestin
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Patent number: 10727799Abstract: A variable gain amplifier includes a pair of amplification and recentering branches. Each branch includes: a resistive element of variable resistance configured to be driven by a variable gain controller; a digitally-driven variable current source configured to be driven by a compensation current driver unit; a first transistor comprising a gate terminal coupled to an input terminal of the variable gain amplifier, and a source terminal coupled to a first terminal of the resistive element; and a second transistor comprising a gate terminal coupled to a drain terminal of the first transistor, and a source terminal coupled to an output terminal of the variable gain amplifier.Type: GrantFiled: May 31, 2019Date of Patent: July 28, 2020Assignee: STMICROELECTRONICS S.A.Inventor: Renald Boulestin
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Publication number: 20200177164Abstract: An embodiment attenuator includes a plurality of circuits coupled in series. A respective circuit includes a first capacitor connected between an input node of the respective circuit and an output node of the respective circuit, and a second capacitor connected between the output node of the respective circuit and a reference node. The output node of the respective circuit, other than a last circuit of the plurality of circuits, is connected to the input node of a successive circuit. The attenuator further includes a plurality of selectors, in which the respective circuit is associated with a respective selector that is coupled between the output node of the respective circuit and an output node of the attenuator.Type: ApplicationFiled: February 3, 2020Publication date: June 4, 2020Inventor: Renald Boulestin
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Publication number: 20200076385Abstract: A variable-gain amplifier includes two amplification and attenuation branches, and first and a second resistive elements that are coupled between the two branches. Each branch includes a voltage follower stage and a configurable amplification stage. The voltage follower stages are intended to receive a differential signal and are configured to deliver, via the first resistive element, an intermediate differential current signal. The amplification stages are intended to receive the intermediate differential current signal and a digital control word, and are configured to deliver, via the second resistive element, an output differential voltage signal depending on the value of the digital control word.Type: ApplicationFiled: August 20, 2019Publication date: March 5, 2020Inventor: Renald Boulestin
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Patent number: 10560071Abstract: An embodiment attenuator includes a plurality of circuits coupled in series. A respective circuit includes a first capacitor connected between an input node of the respective circuit and an output node of the respective circuit, and a second capacitor connected between the output node of the respective circuit and a reference node. The output node of the respective circuit, other than a last circuit of the plurality of circuits, is connected to the input node of a successive circuit. The attenuator further includes a plurality of selectors, in which the respective circuit is associated with a respective selector that is coupled between the output node of the respective circuit and an output node of the attenuator.Type: GrantFiled: May 14, 2018Date of Patent: February 11, 2020Assignee: STMICROELECTRONICS SAInventor: Renald Boulestin
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Publication number: 20190372539Abstract: A variable gain amplifier includes a pair of amplification and recentering branches. Each branch includes: a resistive element of variable resistance configured to be driven by a variable gain controller; a digitally-driven variable current source configured to be driven by a compensation current driver unit; a first transistor comprising a gate terminal coupled to an input terminal of the variable gain amplifier, and a source terminal coupled to a first terminal of the resistive element; and a second transistor comprising a gate terminal coupled to a drain terminal of the first transistor, and a source terminal coupled to an output terminal of the variable gain amplifier.Type: ApplicationFiled: May 31, 2019Publication date: December 5, 2019Inventor: Renald Boulestin
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Publication number: 20180331672Abstract: An embodiment attenuator includes a plurality of circuits coupled in series. A respective circuit includes a first capacitor connected between an input node of the respective circuit and an output node of the respective circuit, and a second capacitor connected between the output node of the respective circuit and a reference node. The output node of the respective circuit, other than a last circuit of the plurality of circuits, is connected to the input node of a successive circuit. The attenuator further includes a plurality of selectors, in which the respective circuit is associated with a respective selector that is coupled between the output node of the respective circuit and an output node of the attenuator.Type: ApplicationFiled: May 14, 2018Publication date: November 15, 2018Inventor: Renald Boulestin