Patents by Inventor Marco Orazio Cavallaro
Marco Orazio Cavallaro 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: 11537153Abstract: A voltage reference circuit includes a first circuit block configured to generate a proportional to absolute temperature current, the first circuit block comprising a current mirror amplifier, a second circuit block coupled to the first circuit block and configured to generated a complimentary to absolute temperature current, and a third circuit block coupled to both the first circuit block and the second circuit block. The second circuit block includes a multi-stage common-source amplifier. The third circuit block is configured to combine the proportional to absolute temperature current and the complimentary to absolute temperature current to generate a reference voltage at an output of the voltage reference circuit.Type: GrantFiled: July 1, 2019Date of Patent: December 27, 2022Assignee: STMicroelectronics S.r.l.Inventors: Marco Orazio Cavallaro, Germano Nicollini, Giuseppe Palmisano
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Publication number: 20210004031Abstract: A voltage reference circuit includes a first circuit block configured to generate a proportional to absolute temperature current, the first circuit block comprising a current mirror amplifier, a second circuit block coupled to the first circuit block and configured to generated a complimentary to absolute temperature current, and a third circuit block coupled to both the first circuit block and the second circuit block. The second circuit block includes a multi-stage common-source amplifier. The third circuit block is configured to combine the proportional to absolute temperature current and the complimentary to absolute temperature current to generate a reference voltage at an output of the voltage reference circuit.Type: ApplicationFiled: July 1, 2019Publication date: January 7, 2021Inventors: Marco Orazio Cavallaro, Germano Nicollini, Giuseppe Palmisano
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Patent number: 9813044Abstract: An active high gain filter includes high value resistances in feedback implemented using a negative resistance circuit configuration. The high value resistance is implemented using two or smaller resistances connected in the negative resistance circuit configuration. This implementation permits integration of the filter circuit using less occupied area while still providing an accurate transfer function response.Type: GrantFiled: February 3, 2016Date of Patent: November 7, 2017Assignee: STMicroelectronics S.r.l.Inventor: Marco Orazio Cavallaro
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Publication number: 20170222626Abstract: An active high gain filter includes high value resistances in feedback implemented using a negative resistance circuit configuration. The high value resistance is implemented using two or smaller resistances connected in the negative resistance circuit configuration. This implementation permits integration of the filter circuit using less occupied area while still providing an accurate transfer function response.Type: ApplicationFiled: February 3, 2016Publication date: August 3, 2017Applicant: STMicroelectronics S.r.l.Inventor: Marco Orazio Cavallaro
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Patent number: 9385671Abstract: A circuit includes a first pair of transistors connected in parallel between a first node and a second node with a diode-connected transistor coupled to the second node. A second pair of transistors has current terminals connected at a third node. A first and second current sink transistors are connected in a current mirror configuration with the diode-connected transistor and further coupled to the third node. A first differential amplifier has an output coupled to control terminals of the first and third transistors and an input coupled to a further current node of the third transistor. A second differential amplifier has an output coupled to control terminals of the second and fourth transistors and an input coupled to a further current node of the fourth transistor.Type: GrantFiled: May 8, 2015Date of Patent: July 5, 2016Assignee: STMicroelectronics S.r.l.Inventor: Marco Orazio Cavallaro
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Publication number: 20150333713Abstract: A circuit includes a first pair of transistors connected in parallel between a first node and a second node with a diode-connected transistor coupled to the second node. A second pair of transistors has current terminals connected at a third node. A first and second current sink transistors are connected in a current mirror configuration with the diode-connected transistor and further coupled to the third node. A first differential amplifier has an output coupled to control terminals of the first and third transistors and an input coupled to a further current node of the third transistor. A second differential amplifier has an output coupled to control terminals of the second and fourth transistors and an input coupled to a further current node of the fourth transistor.Type: ApplicationFiled: May 8, 2015Publication date: November 19, 2015Applicant: STMicroelectronics S.r.l.Inventor: Marco Orazio Cavallaro
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Patent number: 8854136Abstract: A fully differential operational amplifier includes a differential input stage, at least one output stage and a common-mode feedback circuit connected with the input stage. The differential input stage includes a differential pair of transistors and a bias circuit for the differential pair of transistors. A start-up circuit operates to detect an operating condition of the differential pair of transistors of the input stage and in response thereto turn on the bias circuit.Type: GrantFiled: November 15, 2012Date of Patent: October 7, 2014Assignees: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics S.r.l.Inventors: Marco Orazio Cavallaro, Serge Ramet, Tiziano Chiarillo
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Patent number: 8218656Abstract: A pulse generator circuit is provided. The pulse generator circuit has an input adapted to receive an input electrical quantity and an output at which an output electrical quantity is made available. A transfer characteristic establishes a relationship between said input and said output electrical quantities. The pulse generator circuit is adapted to provide said output electrical quantity in the form of pulses having a predetermined shape, suitable to be used for UWB transmission. The transfer characteristic has substantially a same shape as that of said pulses. Moreover, a UWB modulating system exploiting the novel pulse generator is proposed.Type: GrantFiled: December 6, 2010Date of Patent: July 10, 2012Assignee: STMicroelectronics S.r.l.Inventors: Marco Orazio Cavallaro, Tino Copani, Giovanni Girlando, Giuseppe Palmisano
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Patent number: 8139621Abstract: A pulse generator circuit is provided. The pulse generator circuit has an input adapted to receive an input electrical quantity and an output at which an output electrical quantity is made available. A transfer characteristic establishes a relationship between said input and said output electrical quantities. The pulse generator circuit is adapted to provide said output electrical quantity in the form of pulses having a predetermined shape, suitable to be used for UWB transmission. The transfer characteristic has substantially a same shape as that of said pulses. Moreover, a UWB modulating system exploiting the novel pulse generator is proposed.Type: GrantFiled: December 6, 2010Date of Patent: March 20, 2012Assignee: STMicroelectronics S.r.l.Inventors: Marco Orazio Cavallaro, Tino Copani, Giovanni Girlando, Giuseppe Palmisano
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Publication number: 20110135031Abstract: A pulse generator circuit is provided. The pulse generator circuit has an input adapted to receive an input electrical quantity and an output at which an output electrical quantity is made available. A transfer characteristic establishes a relationship between said input and said output electrical quantities. The pulse generator circuit is adapted to provide said output electrical quantity in the form of pulses having a predetermined shape, suitable to be used for UWB transmission. The transfer characteristic has substantially a same shape as that of said pulses. Moreover, a UWB modulating system exploiting the novel pulse generator is proposed.Type: ApplicationFiled: December 6, 2010Publication date: June 9, 2011Applicant: STMicroelectronics, S.r.I.Inventors: Marco Orazio CAVALLARO, Tino Copani, Giovanni Girlando, Giuseppe Palmisano
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Publication number: 20110134966Abstract: A pulse generator circuit is provided. The pulse generator circuit has an input adapted to receive an input electrical quantity and an output at which an output electrical quantity is made available. A transfer characteristic establishes a relationship between said input and said output electrical quantities. The pulse generator circuit is adapted to provide said output electrical quantity in the form of pulses having a predetermined shape, suitable to be used for UWB transmission. The transfer characteristic has substantially a same shape as that of said pulses. Moreover, a UWB modulating system exploiting the novel pulse generator is proposed.Type: ApplicationFiled: December 6, 2010Publication date: June 9, 2011Applicant: STMicroelectronics, S.r.I.Inventors: Marco Orazio CAVALLARO, Tino Copani, Giovanni Girlando, Giuseppe Palmisano
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Patent number: 7869524Abstract: A pulse generator circuit is provided. The pulse generator circuit has an input adapted to receive an input electrical quantity and an output at which an output electrical quantity is made available. A transfer characteristic establishes a relationship between said input and said output electrical quantities. The pulse generator circuit is adapted to provide said output electrical quantity in the form of pulses having a predetermined shape, suitable to be used for UWB transmission. The transfer characteristic has substantially a same shape as that of said pulses. Moreover, a UWB modulating system exploiting the novel pulse generator is proposed.Type: GrantFiled: December 23, 2005Date of Patent: January 11, 2011Assignee: STMicroelectronics, S.r.l.Inventors: Marco Orazio Cavallaro, Tino Copani, Giovanni Girlando, Giuseppe Palmisano