Patents by Inventor Makarand Ajit Shirasgaonkar
Makarand Ajit Shirasgaonkar 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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Publication number: 20250036581Abstract: A method of operation of a flash integrated circuit (IC) memory device is described. The flash IC memory device has an array of memory cells and an interface to receive control, address and data signals using an internal reference voltage. The method includes, at boot-up, initializing the internal reference voltage to a default voltage. At boot-up, the interface is operable to receive, using the internal reference voltage, signals having a first voltage swing at a first signaling frequency. The method includes receiving a first command that specifies calibration of the interface during a calibration mode. The calibration mode is used to calibrate the interface to operate at a second signaling frequency and receive signals having a second voltage swing. The second voltage swing is smaller than the first voltage swing and the second signaling frequency is higher than the first signaling frequency.Type: ApplicationFiled: July 12, 2024Publication date: January 30, 2025Inventors: Pravin Kumar Venkatesan, Liji Gopalakrishnan, Kashinath Ullhas Prabhu, Makarand Ajit Shirasgaonkar
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Patent number: 12072817Abstract: A method of operation of a flash integrated circuit (IC) memory device is described. The flash IC memory device has an array of memory cells and an interface to receive control, address and data signals using an internal reference voltage. The method includes, at boot-up, initializing the internal reference voltage to a default voltage. At boot-up, the interface is operable to receive, using the internal reference voltage, signals having a first voltage swing at a first signaling frequency. The method includes receiving a first command that specifies calibration of the interface during a calibration mode. The calibration mode is used to calibrate the interface to operate at a second signaling frequency and receive signals having a second voltage swing. The second voltage swing is smaller than the first voltage swing and the second signaling frequency is higher than the first signaling frequency.Type: GrantFiled: June 29, 2023Date of Patent: August 27, 2024Assignee: Rambus Inc.Inventors: Pravin Kumar Venkatesan, Liji Gopalakrishnan, Kashinath Ullhas Prabhu, Makarand Ajit Shirasgaonkar
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Publication number: 20230418770Abstract: A method of operation of a flash integrated circuit (IC) memory device is described. The flash IC memory device has an array of memory cells and an interface to receive control, address and data signals using an internal reference voltage. The method includes, at boot-up, initializing the internal reference voltage to a default voltage. At boot-up, the interface is operable to receive, using the internal reference voltage, signals having a first voltage swing at a first signaling frequency. The method includes receiving a first command that specifies calibration of the interface during a calibration mode. The calibration mode is used to calibrate the interface to operate at a second signaling frequency and receive signals having a second voltage swing. The second voltage swing is smaller than the first voltage swing and the second signaling frequency is higher than the first signaling frequency.Type: ApplicationFiled: June 29, 2023Publication date: December 28, 2023Inventors: Pravin Kumar Venkatesan, Liji Gopalakrishnan, Kashinath Ullhas Prabhu, Makarand Ajit Shirasgaonkar
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Patent number: 11829308Abstract: A method of operation of a flash integrated circuit (IC) memory device is described. The flash IC memory device has an array of memory cells and an interface to receive control, address and data signals using an internal reference voltage. The method includes, at boot-up, initializing the internal reference voltage to a default voltage. At boot-up, the interface is operable to receive, using the internal reference voltage, signals having a first voltage swing at a first signaling frequency. The method includes receiving a first command that specifies calibration of the interface during a calibration mode. The calibration mode is used to calibrate the interface to operate at a second signaling frequency and receive signals having a second voltage swing. The second voltage swing is smaller than the first voltage swing and the second signaling frequency is higher than the first signaling frequency.Type: GrantFiled: December 15, 2022Date of Patent: November 28, 2023Assignee: Rambus Inc.Inventors: Pravin Kumar Venkatesan, Liji Gopalakrishnan, Kashinath Ullhas Prabhu, Makarand Ajit Shirasgaonkar
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Patent number: 11803489Abstract: A single-ended receiver is coupled to an input-output (I/O) pin of a command and address (CA) bus. The receiver is configurable with dual-mode I/O support to operate the CA bus in a low-swing mode and a high-swing mode. The receiver is configurable to receive a first command on the I/O pin while in the high-swing mode, initiate calibration of the slave device to operate in the low-swing mode in response to the first command, switch the slave device to operate in the low-swing mode while the CA bus remains active, and to receive a second command on the I/O pin while in the low-swing mode.Type: GrantFiled: June 24, 2022Date of Patent: October 31, 2023Assignee: Rambus Inc.Inventors: Pravin Kumar Venkatesan, Liji Gopalakrishnan, Kashinath Ullhas Prabhu, Makarand Ajit Shirasgaonkar
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Patent number: 11734208Abstract: A method of operation of a flash integrated circuit (IC) memory device is described. The flash IC memory device has an array of memory cells and an interface to receive control, address and data signals using an internal reference voltage. The method includes, at boot-up, initializing the internal reference voltage to a default voltage. At boot-up, the interface is operable to receive, using the internal reference voltage, signals having a first voltage swing at a first signaling frequency. The method includes receiving a first command that specifies calibration of the interface during a calibration mode. The calibration mode is used to calibrate the interface to operate at a second signaling frequency and receive signals having a second voltage swing. The second voltage swing is smaller than the first voltage swing and the second signaling frequency is higher than the first signaling frequency.Type: GrantFiled: December 15, 2022Date of Patent: August 22, 2023Assignee: Rambus Inc.Inventors: Pravin Kumar Venkatesan, Liji Gopalakrishnan, Kashinath Ullhas Prabhu, Makarand Ajit Shirasgaonkar
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Publication number: 20230119579Abstract: A method of operation of a flash integrated circuit (IC) memory device is described. The flash IC memory device has an array of memory cells and an interface to receive control, address and data signals using an internal reference voltage. The method includes, at boot-up, initializing the internal reference voltage to a default voltage. At boot-up, the interface is operable to receive, using the internal reference voltage, signals having a first voltage swing at a first signaling frequency. The method includes receiving a first command that specifies calibration of the interface during a calibration mode. The calibration mode is used to calibrate the interface to operate at a second signaling frequency and receive signals having a second voltage swing. The second voltage swing is smaller than the first voltage swing and the second signaling frequency is higher than the first signaling frequency.Type: ApplicationFiled: December 15, 2022Publication date: April 20, 2023Inventors: Pravin Kumar Venkatesan, Liji Gopalakrishnan, Kashinath Ullhas Prabhu, Makarand Ajit Shirasgaonkar
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Publication number: 20230052053Abstract: A single-ended receiver is coupled to an input-output (I/O) pin of a command and address (CA) bus. The receiver is configurable with dual-mode I/O support to operate the CA bus in a low-swing mode and a high-swing mode. The receiver is configurable to receive a first command on the I/O pin while in the high-swing mode, initiate calibration of the slave device to operate in the low-swing mode in response to the first command, switch the slave device to operate in the low-swing mode while the CA bus remains active, and to receive a second command on the I/O pin while in the low-swing mode.Type: ApplicationFiled: June 24, 2022Publication date: February 16, 2023Inventors: Pravin Kumar Venkatesan, Liji Gopalakrishnan, Kashinath Ullhas Prabhu, Makarand Ajit Shirasgaonkar
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Patent number: 11372784Abstract: A single-ended receiver is coupled to an input-output (I/O) pin of a command and address (CA) bus. The receiver is configurable with dual-mode I/O support to operate the CA bus in a low-swing mode and a high-swing mode. The receiver is configurable to receive a first command on the I/O pin while in the high-swing mode, initiate calibration of the slave device to operate in the low-swing mode in response to the first command, switch the slave device to operate in the low-swing mode while the CA bus remains active, and to receive a second command on the I/O pin while in the low-swing mode.Type: GrantFiled: December 10, 2019Date of Patent: June 28, 2022Assignee: Rambus Inc.Inventors: Pravin Kumar Venkatesan, Liji Gopalakrishnan, Kashinath Ullhas Prabhu, Makarand Ajit Shirasgaonkar
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Publication number: 20200218675Abstract: A single-ended receiver is coupled to an input-output (I/O) pin of a command and address (CA) bus. The receiver is configurable with dual-mode I/O support to operate the CA bus in a low-swing mode and a high-swing mode. The receiver is configurable to receive a first command on the I/O pin while in the high-swing mode, initiate calibration of the slave device to operate in the low-swing mode in response to the first command, switch the slave device to operate in the low-swing mode while the CA bus remains active, and to receive a second command on the I/O pin while in the low-swing mode.Type: ApplicationFiled: December 10, 2019Publication date: July 9, 2020Inventors: Pravin Kumar Venkatesan, Liji Gopalakrishnan, Kashinath Ullhas Prabhu, Makarand Ajit Shirasgaonkar
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Patent number: 10509741Abstract: A single-ended receiver is coupled to an input-output (I/O) pin of a command and address (CA) bus. The receiver is configurable with dual-mode I/O support to operate the CA bus in a low-swing mode and a high-swing mode. The receiver is configurable to receive a first command on the I/O pin while in the high-swing mode, initiate calibration of the slave device to operate in the low-swing mode in response to the first command, switch the slave device to operate in the low-swing mode while the CA bus remains active, and to receive a second command on the I/O pin while in the low-swing mode.Type: GrantFiled: September 28, 2018Date of Patent: December 17, 2019Assignee: Rambus Inc.Inventors: Pravin Kumar Venkatesan, Liji Gopalakrishnan, Kashinath Ullhas Prabhu, Makarand Ajit Shirasgaonkar
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Publication number: 20190102327Abstract: A single-ended receiver is coupled to an input-output (I/O) pin of a command and address (CA) bus. The receiver is configurable with dual-mode I/O support to operate the CA bus in a low-swing mode and a high-swing mode. The receiver is configurable to receive a first command on the I/O pin while in the high-swing mode, initiate calibration of the slave device to operate in the low-swing mode in response to the first command, switch the slave device to operate in the low-swing mode while the CA bus remains active, and to receive a second command on the I/O pin while in the low-swing mode.Type: ApplicationFiled: September 28, 2018Publication date: April 4, 2019Inventors: Pravin Kumar Venkatesan, Liji Gopalakrishnan, Kashinath Ullhas Prabhu, Makarand Ajit Shirasgaonkar