Patents by Inventor Iulian C. Gradinariu
Iulian C. Gradinariu 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: 12014800Abstract: Systems and methods for driving a non-volatile memory device in a standby operating condition are disclosed. A standby detection circuit detects whether the non-volatile memory system is in a standby condition. In response to determining that the non-volatile memory system is in a standby condition, a bias control circuit provides bias currents to drivers of the non-volatile memory system in a standby mode.Type: GrantFiled: February 13, 2023Date of Patent: June 18, 2024Assignee: LONGITUDE FLASH MEMORY SOLUTIONS LTDInventors: Cristinel Zonte, Vijay Raghavan, Iulian C Gradinariu, Gary Peter Moscaluk, Roger Bettman, Vineet Argrawal, Samuel Leshner
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Publication number: 20230197128Abstract: Systems and methods for driving a non-volatile memory device in a standby operating condition are disclosed. A standby detection circuit detects whether the non-volatile memory system is in a standby condition. In response to determining that the non-volatile memory system is in a standby condition, a bias control circuit provides bias currents to drivers of the non-volatile memory system in a standby mode.Type: ApplicationFiled: February 13, 2023Publication date: June 22, 2023Inventors: Cristinel Zonte, Vijay Raghavan, Iulian C Gradinariu, Gary Peter Moscaluk, Roger Bettman, Vineet Argrawal, Samuel Leshner
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Patent number: 11581029Abstract: Systems and methods for driving a non-volatile memory device in a standby operating condition are disclosed. A standby detection circuit detects whether the non-volatile memory system is in a standby condition. In response to determining that the non-volatile memory system is in a standby condition, a bias control circuit provides bias currents to drivers of the non-volatile memory system in a standby mode.Type: GrantFiled: April 30, 2021Date of Patent: February 14, 2023Assignee: LONGITUDE ELASH MEMORY SOLUTIONS LTDInventors: Cristinel Zonte, Vijay Raghavan, Iulian C Gradinariu, Gary Peter Moscaluk, Roger Bettman, Vineet Argrawal, Samuel Leshner
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Publication number: 20210327477Abstract: Systems and methods for driving a non-volatile memory device in a standby operating condition are disclosed. A standby detection circuit detects whether the non-volatile memory system is in a standby condition. In response to determining that the non-volatile memory system is in a standby condition, a bias control circuit provides bias currents to drivers of the non-volatile memory system in a standby mode.Type: ApplicationFiled: April 30, 2021Publication date: October 21, 2021Inventors: Cristinel Zonte, Vijay Raghavan, Iulian C. Gradinariu, Gary Peter Moscaluk, Roger Bettman, Vineet Argrawal, Samuel Leshner
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Patent number: 10998019Abstract: Systems and methods for driving a non-volatile memory device in a standby operating condition are disclosed. A standby detection circuit detects whether the non-volatile memory system is in a standby condition. In response to determining that the non-volatile memory system is in a standby condition, a bias control circuit provides bias currents to drivers of the non-volatile memory system in a standby mode.Type: GrantFiled: December 16, 2019Date of Patent: May 4, 2021Assignee: Longitude Flash Memory Solutions, Ltd.Inventors: Cristinel Zonte, Vijay Raghavan, Iulian C. Gradinariu, Gary Peter Moscaluk, Roger Bettman, Vineet Argrawal, Samuel Leshner
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Publication number: 20200234746Abstract: Systems and methods for driving a non-volatile memory device in a standby operating condition are disclosed. A standby detection circuit detects whether the non-volatile memory system is in a standby condition. In response to determining that the non-volatile memory system is in a standby condition, a bias control circuit provides bias currents to drivers of the non-volatile memory system in a standby mode.Type: ApplicationFiled: December 16, 2019Publication date: July 23, 2020Inventors: Cristinel Zonte, Vijay Raghavan, Iulian C. Gradinariu, Gary Peter Moscaluk, Roger Bettman, Vineet Argrawal, Samuel Leshner
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Patent number: 10062423Abstract: Systems and methods for driving a non-volatile memory device in a standby operating condition are disclosed. A standby detection circuit detects whether the non-volatile memory system is in a standby condition. In response to determining that the non-volatile memory system is in a standby condition, a bias control circuit provides bias currents to drivers of the non-volatile memory system in a standby mode.Type: GrantFiled: September 16, 2016Date of Patent: August 28, 2018Assignee: Cypress Semiconductor CorporationInventors: Cristinel Zonte, Vijay Raghavan, Iulian C. Gradinariu, Gary Peter Moscaluk, Roger Bettman, Vineet Argrawal, Samuel Leshner
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Patent number: 9866216Abstract: A circuit includes a biasing circuit that includes a diode stack coupled to a first node. The biasing circuit can output a biasing signal on the first node. The biasing circuit also includes a transistor, a timer component and a current source. An input of the timer component is coupled to receive an isolation signal. The current source is configured to inject current for a period of time into the diode stack in response to a transition of the ISO signal between a first voltage and a second voltage. The biasing circuit also is configured to output a signal to a level shifter to hold an output of the level shifter in a known state for a specified amount of time after power-up of the circuit for proper operation of the level shifter.Type: GrantFiled: August 25, 2016Date of Patent: January 9, 2018Assignee: Cypress Semiconductor CorporationInventors: Iulian C. Gradinariu, Jayant Ashokkumar, Bogdan Samson, Vijay Raghavan
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Patent number: 9639226Abstract: A capacitance sensing device can include a reference circuit configured to connect to a reference capacitance, and to generate an electrical reference signal that varies over time according to the reference capacitance and a compare signal; a sense circuit configured to connect to a sense capacitance, and to generate an electrical sense signal that varies over time according to a sense capacitance; a compare circuit having compare inputs coupled to receive the sense signal and the reference signal, and a compare output that provides the compare signal; and a value generation circuit configured to generate an output value corresponding to the compare signal over a predetermined time period.Type: GrantFiled: December 10, 2015Date of Patent: May 2, 2017Assignee: CYPRESS SEMICONDUCTOR CORPORATIONInventor: Iulian C. Gradinariu
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Publication number: 20170098468Abstract: Systems and methods for driving a non-volatile memory device in a standby operating condition are disclosed. A standby detection circuit detects whether the non-volatile memory system is in a standby condition. In response to determining that the non-volatile memory system is in a standby condition, a bias control circuit provides bias currents to drivers of the non-volatile memory system in a standby mode.Type: ApplicationFiled: September 16, 2016Publication date: April 6, 2017Inventors: Cristinel Zonte, Vijay Raghavan, Iulian C. Gradinariu, Gary Peter Moscaluk, Roger Bettman, Vineet Argrawal, Samuel Leshner
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Publication number: 20170060297Abstract: A capacitance sensing device can include a reference circuit configured to connect to a reference capacitance, and to generate an electrical reference signal that varies over time according to the reference capacitance and a compare signal; a sense circuit configured to connect to a sense capacitance, and to generate an electrical sense signal that varies over time according to a sense capacitance; a compare circuit having compare inputs coupled to receive the sense signal and the reference signal, and a compare output that provides the compare signal; and a value generation circuit configured to generate an output value corresponding to the compare signal over a predetermined time period.Type: ApplicationFiled: December 10, 2015Publication date: March 2, 2017Inventor: Iulian C. Gradinariu
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Patent number: 9449655Abstract: Systems and methods for driving a non-volatile memory device in a standby operating condition are disclosed. A standby detection circuit detects whether the non-volatile memory system is in a standby condition. In response to determining that the non-volatile memory system is in a standby condition, a bias control circuit provides bias currents to drivers of the non-volatile memory system in a standby mode.Type: GrantFiled: December 11, 2015Date of Patent: September 20, 2016Assignee: Cypress Semiconductor CorporationInventors: Cristinel Zonte, Vijay Raghavan, Iulian C. Gradinariu, Gary Peter Moscaluk, Roger Bettman, Vineet Argrawal, Samuel Leshner
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Patent number: 9438240Abstract: A circuit includes a biasing circuit that includes a load circuit coupled to a first node. The biasing circuit can output a biasing signal on the first node. The biasing circuit also includes a timer component and a current source. An input of the timer component is coupled to receive an isolation signal. The current source is configured to inject current for a period of time into the load circuit in response to a transition of the ISO signal between a high voltage and a low voltage. The biasing circuit also includes circuitry to generate an isolation delayed (ISO_DEL) signal. The ISO_DEL signal has a high voltage in response to the biasing signal being within a first threshold level and the ISO_DEL signal has a low voltage in response to the biasing signal being within a second threshold level. The biasing circuit outputs the ISO_DEL signal.Type: GrantFiled: December 10, 2015Date of Patent: September 6, 2016Assignee: Cypress Semiconductor CorporationInventors: Iulian C. Gradinariu, Jayant Ashokkumar, Bogdan Samson, Vijay Raghavan
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Patent number: 8587365Abstract: Disclosed is an improved substrate bias feedback circuit, and a method for operating the same.Type: GrantFiled: October 9, 2012Date of Patent: November 19, 2013Assignee: Cypress Semiconductor CorporationInventors: Vijay Kumar Srinivasa Raghavan, Iulian C. Gradinariu
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Patent number: 7683701Abstract: Bandgap reference (BGR) circuits and methods are described herein for providing high accuracy, low power Bandgap operation when using small, low voltage devices in the analog blocks of the BGR circuit. In some cases, chopped input stabilization and dynamic current matching techniques may be combined to compensate for input voltage offsets in the operational amplifier portion and current offsets in the current mirror portion of the Bandgap circuit. When used together, the chopped stabilization and dynamic current matching techniques provide a significant increase in accuracy, especially when using small, low voltage devices in the analog blocks to reduce layout area and support low power supply operation (e.g., power supply values down to about 1.4 volts and below).Type: GrantFiled: December 29, 2005Date of Patent: March 23, 2010Assignee: Cypress Semiconductor CorporationInventors: Bogdan I. Georgescu, Iulian C. Gradinariu
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Patent number: 6674682Abstract: A method for providing at least 2 Meg of SRAM cells having a maximum average operating current of approximately 9.43 mA comprising the steps of (A) providing an address path configured to consume a maximum average operating current of approximately 2.38 mA, (B) providing one or more sense amplifiers configured to consume a maximum average operating current of approximately 0.91 mA, (C) providing one or more bitlines configured to consume a maximum average operating current of approximately 0.94 mA and (D) providing a Q path configured to consume a maximum average operating current of approximately 0.61 mA.Type: GrantFiled: July 19, 2002Date of Patent: January 6, 2004Assignee: Cypress Semiconductor Corp.Inventors: Keith A. Ford, Iulian C. Gradinariu, Bogdan I. Georgescu, Sean B. Mulholland, John J. Silver, Danny L. Rose
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Patent number: 6662315Abstract: An asynchronous memory device includes parallel test circuitry configured to interface with a single-ended output data path of the memory device and, in some cases, to provide a measure of a slowest cell access time for the memory device. The parallel test circuitry may include first circuitry configured to receive logic signals from a plurality of cells of the memory device and to provide first output signals indicative of logic states of the plurality of cells; and second circuitry configured to receive the first output signals and to produce a second output signal indicative of the logic states of the first output signals therefrom. For example, the first circuitry and the second circuitry may be configured as a wired NAND and wired NOR combination. In some cases, one or more of the cells may be included within a redundant row or column of the memory device.Type: GrantFiled: November 26, 2002Date of Patent: December 9, 2003Assignee: Cypress Semiconductor CorporationInventors: Iulian C. Gradinariu, John J. Silver, Keith A. Ford, Sean B. Mulholland
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Patent number: 6535437Abstract: A circuit comprising a memory array and a logic circuit. The memory array may be configured to read or write data in response to (i) one or more enable signals and (ii) one or more control signals. The logic circuit may be configured to generate the enable signals in response to one or more address signals. De-assertion of one or more of the enable signals generally reduces current consumption in the memory array.Type: GrantFiled: June 15, 2001Date of Patent: March 18, 2003Assignee: Cypress Semiconductor Corp.Inventors: John J. Silver, Iulian C. Gradinariu, Bogdan I. Georgescu, Keith A. Ford, Sean B. Mulholland, Danny L. Rose
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Patent number: 6530040Abstract: An asynchronous memory device includes parallel test circuitry configured to interface with a single-ended output data path of the memory device and, in some cases, to provide a measure of a slowest cell access time for the memory device. The parallel test circuitry may include first circuitry configured to receive logic signals from a plurality of cells of the memory device and to provide first output signals indicative of logic states of the plurality of cells; and second circuitry configured to receive the first output signals and to produce a second output signal indicative of the logic states of the first output signals therefrom. For example, the first circuitry and the second circuitry may be configured as a wired NAND and wired NOR combination. In some cases, one or more of the cells may be included within a redundant row or column of the memory device.Type: GrantFiled: September 22, 1999Date of Patent: March 4, 2003Assignee: Cypress Semiconductor Corp.Inventors: Iulian C. Gradinariu, John J. Silver, Keith A. Ford, Sean B. Mulholland
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Publication number: 20020191470Abstract: A method for providing at least 2 Meg of SRAM cells having a maximum average operating current of approximately 9.43 mA comprising the steps of (A) providing an address path configured to consume a maximum average operating current of approximately 2.38 mA, (B) providing one or more sense amplifiers configured to consume a maximum average operating current of approximately 0.91 mA, (C) providing one or more bitlines configured to consume a maximum average operating current of approximately 0.94 mA and (D) providing a Q path configured to consume a maximum average operating current of approximately 0.61 mA.Type: ApplicationFiled: July 19, 2002Publication date: December 19, 2002Inventors: Keith A. Ford, Iulian C. Gradinariu, Bogdan I. Georgescu, Sean B. Mulholland, John J. Silver, Danny L. Rose