Patents by Inventor Rabindranath Balasubramanian
Rabindranath Balasubramanian 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: 9203352Abstract: A circuit includes a first amplifier circuit and a second amplifier circuit. The second amplifier circuit includes an input coupled to an output of the first amplifier circuit. A pass gate circuit is coupled between first and second inputs of the first amplifier circuit. The pass gate circuit is on during calibration of the second amplifier circuit to short together signals at the first and the second inputs of the first amplifier circuit. The pass gate circuit is off during a normal mode of the first and the second amplifier circuits.Type: GrantFiled: July 26, 2013Date of Patent: December 1, 2015Assignee: Altera CorporationInventors: Tim Tri Hoang, Rabindranath Balasubramanian
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Patent number: 7937601Abstract: A programmable system-on-a-chip integrated circuit device comprises a programmable logic block, a non-volatile memory block, an analog sub-system, an analog input/output circuit block, and a digital input/output circuit block. A programmable interconnect architecture includes programmable elements and interconnect conductors. Ones of the programmable elements are coupled to the programmable logic block, the non-volatile memory block, the analog sub-system, the analog input/output circuit block, the digital input/output circuit block, and to the interconnect conductors, such that inputs and outputs of the programmable logic block, the non-volatile memory block, the analog sub-system, the analog input/output circuit block, and the digital input/output circuit block can be programmably coupled to one another.Type: GrantFiled: August 5, 2009Date of Patent: May 3, 2011Assignee: Actel CorporationInventors: Greg Bakker, Khaled El-Ayat, Theodore Speers, Limin Zhu, Brian Schubert, Rabindranath Balasubramanian, Kurt Kilkind, Thomas Barraza, Venkatesh Narayanan, John McCollum, William C. Plants
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Patent number: 7859302Abstract: A programmable system-on-a-chip integrated circuit device includes a programmable logic block, at least one user non-volatile memory block, and voltage-measuring and control analog and digital circuits on a single semiconductor integrated circuit chip or a flip chip, face-to-face, or other multiple die configuration. The programmable system-on-a-chip integrated circuit with voltage-measuring, current-measuring and control circuitry performs voltage measurement and control functions and can be used to control and monitor external power supplies connected to external loads.Type: GrantFiled: September 8, 2009Date of Patent: December 28, 2010Assignee: Actel CorporationInventors: Rabindranath Balasubramanian, Gregory Bakker
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Publication number: 20100001760Abstract: A programmable system-on-a-chip integrated circuit device includes a programmable logic block, at least one user non-volatile memory block, and voltage-measuring and control analog and digital circuits on a single semiconductor integrated circuit chip or a flip chip, face-to-face, or other multiple die configuration. The programmable system-on-a-chip integrated circuit with voltage-measuring, current-measuring and control circuitry performs voltage measurement and control functions and can be used to control and monitor external power supplies connected to external loads.Type: ApplicationFiled: September 8, 2009Publication date: January 7, 2010Applicant: ACTEL CORPORATIONInventors: Rabindranath Balasubramanian, Gregory Bakker
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Publication number: 20090292937Abstract: A programmable system-on-a-chip integrated circuit device comprises a programmable logic block, a non-volatile memory block, an analog sub-system, an analog input/output circuit block, and a digital input/output circuit block. A programmable interconnect architecture includes programmable elements and interconnect conductors. Ones of the programmable elements are coupled to the programmable logic block, the non-volatile memory block, the analog sub-system, the analog input/output circuit block, the digital input/output circuit block, and to the interconnect conductors, such that inputs and outputs of the programmable logic block, the non-volatile memory block, the analog sub-system, the analog input/output circuit block, and the digital input/output circuit block can be programmably coupled to one another.Type: ApplicationFiled: August 5, 2009Publication date: November 26, 2009Inventors: Greg Bakker, Khaled El-Ayat, Theodore Speers, Limin Zhu, Brian Schubert, Rabindranath Balasubramanian, Kurt Kolkind, Thomas Barraza, Venkatesh Narayanan, John McCollum, William C. Plants
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Patent number: 7616026Abstract: An integrated circuit includes a plurality of inputs, a plurality of output pads, a programmable logic block, an analog circuit block, an analog-to-digital converter programmably coupleable to individual analog circuits in the analog circuit block, and an interconnect architecture programmably coupling selected ones of the plurality of inputs, the plurality of outputs, the programmable logic block, the analog circuit block, and the analog-to-digital converter. At least one of the inputs may be programmably configured as one of a digital input programmably coupleable to elements in the programmable logic block or as an analog input to an analog circuit in the analog circuit block.Type: GrantFiled: July 21, 2008Date of Patent: November 10, 2009Assignee: Actel CorporationInventors: Rabindranath Balasubramanian, Limin Zhu, Theodore Speers, Gregory Bakker
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Patent number: 7613943Abstract: A programmable system-on-a-chip integrated circuit device comprises a programmable logic block, a non-volatile memory block, an analog sub-system, an analog input/output circuit block, and a digital input/output circuit block. A programmable interconnect architecture includes programmable elements and interconnect conductors. Ones of the programmable elements are coupled to the programmable logic block, the non-volatile memory block, the analog sub-system, the analog input/output circuit block, the digital input/output circuit block, and to the interconnect conductors, such that inputs and outputs of the programmable logic block, the non-volatile memory block, the analog sub-system, the analog input/output circuit block, and the digital input/output circuit block can be programmably coupled to one another.Type: GrantFiled: October 31, 2007Date of Patent: November 3, 2009Assignee: Actel CorporationInventors: Greg Bakker, Khaled El-Ayat, Theodore Speers, Limin Zhu, Brian Schubert, Rabindranath Balasubramanian, Kurt Kolkind, Thomas Barraza, Venkatesh Narayanan, John McCollum, William C. Plants
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Patent number: 7603578Abstract: A programmable system-on-a-chip integrated circuit device includes a programmable logic block, at least one user non-volatile memory block, and voltage-measuring and control analog and digital circuits on a single semiconductor integrated circuit chip or a flip chip, face-to-face, or other multiple die configuration. The programmable system-on-a-chip integrated circuit with voltage-measuring, current-measuring and control circuitry performs voltage measurement and control functions and can be used to control and monitor external power supplies connected to external loads.Type: GrantFiled: January 8, 2009Date of Patent: October 13, 2009Assignee: Actel CorporationInventors: Rabindranath Balasubramanian, Gregory Bakker
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Patent number: 7560954Abstract: A programmable system-on-a-chip integrated circuit device includes a programmable logic block, at least one user non-volatile memory block, and temperature sensing and control analog and digital circuits on a single semiconductor integrated circuit chip or a flip chip, face-to-face, or other multiple die configuration. The programmable system-on-a-chip integrated circuit with temperature measuring and control circuitry performs temperature measurement and control functions and can be used to create an on-chip temperature log.Type: GrantFiled: July 24, 2008Date of Patent: July 14, 2009Assignee: Actel CorporationInventors: Rabindranath Balasubramanian, Limin Zhu, Gregory Bakker
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Publication number: 20090128186Abstract: A programmable system-on-a-chip integrated circuit device includes a programmable logic block, at least one user non-volatile memory block, and voltage-measuring and control analog and digital circuits on a single semiconductor integrated circuit chip or a flip chip, face-to-face, or other multiple die configuration. The programmable system-on-a-chip integrated circuit with voltage-measuring, current-measuring and control circuitry performs voltage measurement and control functions and can be used to control and monitor external power supplies connected to external loads.Type: ApplicationFiled: January 8, 2009Publication date: May 21, 2009Applicant: ACTEL CORPORATIONInventors: Rabindranath Balasubramanian, Gregory Bakker
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Patent number: 7521960Abstract: An integrated circuit device includes a programmable logic block, a monitoring input, a condition-sensing circuit coupled to the monitoring input and configured to generate a condition-sensed signal at an output in response to sensing a condition at the monitoring input, a first digital input, a first digital output, and a gating circuit configured in the programmable logic block and coupled between the first digital input and the first digital output. The gating circuit has a gating input coupled to the condition-sensing circuit and generates an output. The output is related to an input state of the first digital input in the absence of the condition-sensed signal and assumes an override state in the presence of the condition-sensed signal.Type: GrantFiled: October 31, 2007Date of Patent: April 21, 2009Assignee: Actel CorporationInventors: Rabindranath Balasubramanian, Kurt Kolkind, Gregory Bakker
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Patent number: 7487376Abstract: A programmable system-on-a-chip integrated circuit device comprises a programmable logic block, a non-volatile memory block, an analog sub-system, an analog input/output circuit block, and a digital input/output circuit block. A programmable interconnect architecture includes programmable elements and interconnect conductors. Ones of the programmable elements are coupled to the programmable logic block, the non-volatile memory block, the analog sub-system, the analog input/output circuit block, the digital input/output circuit block, and to the interconnect conductors, such that inputs and outputs of the programmable logic block, the non-volatile memory block, the analog sub-system, the analog input/output circuit block, and the digital input/output circuit block can be programmably coupled to one another.Type: GrantFiled: October 31, 2007Date of Patent: February 3, 2009Assignee: Actel CorporationInventors: Greg Bakker, Khaled El-Ayat, Theodore Speers, Limin Zhu, Brian Schubert, Rabindranath Balasubramanian, Kurt Kolkind, Thomas Barraza, Venkatesh Narayanan, John McCollum, William C. Plants
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Publication number: 20080303547Abstract: A programmable system-on-a-chip integrated circuit device includes a programmable logic block, at least one user non-volatile memory block, and temperature sensing and control analog and digital circuits on a single semiconductor integrated circuit chip or a flip chip, face-to-face, or other multiple die configuration. The programmable system-on-a-chip integrated circuit with temperature measuring and control circuitry performs temperature measurement and control functions and can be used to create an on-chip temperature log.Type: ApplicationFiled: July 24, 2008Publication date: December 11, 2008Applicant: Actel CorporationInventors: Rabindranath Balasubramanian, Limin Zhu, Gregory Bakker
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Publication number: 20080272803Abstract: An integrated circuit includes a plurality of inputs, a plurality of output pads, a programmable logic block, an analog circuit block, an analog-to-digital converter programmably coupleable to individual analog circuits in the analog circuit block, and an interconnect architecture programmably coupling selected ones of the plurality of inputs, the plurality of outputs, the programmable logic block, the analog circuit block, and the analog-to-digital converter. At least one of the inputs may be programmably configured as one of a digital input programmably coupleable to elements in the programmable logic block or as an analog input to an analog circuit in the analog circuit block.Type: ApplicationFiled: July 21, 2008Publication date: November 6, 2008Applicant: Actel CorporationInventors: Rabindranath Balasubramanian, Limin Zhu, Theodore Speers, Gregory Bakker
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Patent number: 7446560Abstract: A programmable system-on-a-chip integrated circuit device includes a programmable logic block, at least one user non-volatile memory block, and temperature sensing and control analog and digital circuits on a single semiconductor integrated circuit chip or a flip chip, face-to-face, or other multiple die configuration. The programmable system-on-a-chip integrated circuit with temperature measuring and control circuitry performs temperature measurement and control functions and can be used to create an on-chip temperature log.Type: GrantFiled: July 9, 2007Date of Patent: November 4, 2008Assignee: Actel CorporationInventors: Rabindranath Balasubramanian, Limin Zhu, Gregory Bakker
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Publication number: 20080265935Abstract: An integrated multi-function analog circuit includes at least one MOSFET gate-drive circuit coupled to a first I/O pad. At least one voltage-sensing circuit is coupled to a second I/O pad. At least one current-sensing circuit is coupled to the second I/O pad and a third I/O pad. At least one temperature-sensing circuit is coupled to a fourth I/O pad.Type: ApplicationFiled: July 16, 2008Publication date: October 30, 2008Applicant: Acetel CorporationInventors: Gregory Bakker, Rabindranath Balasubramanian
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Patent number: 7423451Abstract: An integrated circuit includes a plurality of inputs, a plurality of output pads, a programmable logic block, an analog circuit block, an analog-to-digital converter programmably coupleable to individual analog circuits in the analog circuit block, and an interconnect architecture programmably coupling selected ones of the plurality of inputs, the plurality of outputs, the programmable logic block, the analog circuit block, and the analog-to-digital converter. At least one of the inputs may be programmably configured as one of a digital input programmably coupleable to elements in the programmable logic block or as an analog input to an analog circuit in the analog circuit block.Type: GrantFiled: October 23, 2006Date of Patent: September 9, 2008Assignee: Actel CorporationInventors: Rabindranath Balasubramanian, Limin Zhu, Theodore Speers, Gregory Bakker
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Patent number: 7414427Abstract: An integrated multi-function analog circuit includes at least one MOSFET gate-drive circuit coupled to a first I/O pad. At least one voltage-sensing circuit is coupled to a second I/O pad. At least one current-sensing circuit is coupled to the second I/O pad and a third I/O pad. At least one temperature-sensing circuit is coupled to a fourth I/O pad.Type: GrantFiled: November 21, 2006Date of Patent: August 19, 2008Assignee: Actel CorporationInventors: Gregory Bakker, Rabindranath Balasubramanian
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Publication number: 20080122481Abstract: A programmable system-on-a-chip integrated circuit device comprises a programmable logic block, a non-volatile memory block, an analog sub-system, an analog input/output circuit block, and a digital input/output circuit block. A programmable interconnect architecture includes programmable elements and interconnect conductors. Ones of the programmable elements are coupled to the programmable logic block, the non-volatile memory block, the analog sub-system, the analog input/output circuit block, the digital input/output circuit block, and to the interconnect conductors, such that inputs and outputs of the programmable logic block, the non-volatile memory block, the analog sub-system, the analog input/output circuit block, and the digital input/output circuit block can be programmably coupled to one another.Type: ApplicationFiled: October 31, 2007Publication date: May 29, 2008Applicant: ACTEL CORPORATIONInventors: Greg Bakker, Khaled El-Ayat, Theodore Speers, Limin Zhu, Brian Schubert, Rabindranath Balasubramanian, Kurt Kolkind, Thomas Barraza, Venkatesh Narayanan, John McCollum, William C. Plants
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Patent number: 7365565Abstract: A programmable system-on-a-chip integrated circuit device includes a programmable logic block, at least one user non-volatile memory block, and voltage-measuring and control analog and digital circuits on a single semiconductor integrated circuit chip or a flip chip, face-to-face, or other multiple die configuration. The programmable system-on-a-chip integrated circuit with voltage-measuring, current-measuring and control circuitry performs voltage measurement and control functions and can be used to control and monitor external power supplies connected to external loads.Type: GrantFiled: January 31, 2006Date of Patent: April 29, 2008Assignee: Actel CorporationInventors: Rabindranath Balasubramanian, Gregory Bakker