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).

  • Patent number: 12014800
    Abstract: 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: Grant
    Filed: February 13, 2023
    Date of Patent: June 18, 2024
    Assignee: LONGITUDE FLASH MEMORY SOLUTIONS LTD
    Inventors: Cristinel Zonte, Vijay Raghavan, Iulian C Gradinariu, Gary Peter Moscaluk, Roger Bettman, Vineet Argrawal, Samuel Leshner
  • Publication number: 20230197128
    Abstract: 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: Application
    Filed: February 13, 2023
    Publication date: June 22, 2023
    Inventors: Cristinel Zonte, Vijay Raghavan, Iulian C Gradinariu, Gary Peter Moscaluk, Roger Bettman, Vineet Argrawal, Samuel Leshner
  • Patent number: 11581029
    Abstract: 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: Grant
    Filed: April 30, 2021
    Date of Patent: February 14, 2023
    Assignee: LONGITUDE ELASH MEMORY SOLUTIONS LTD
    Inventors: Cristinel Zonte, Vijay Raghavan, Iulian C Gradinariu, Gary Peter Moscaluk, Roger Bettman, Vineet Argrawal, Samuel Leshner
  • Publication number: 20210327477
    Abstract: 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: Application
    Filed: April 30, 2021
    Publication date: October 21, 2021
    Inventors: Cristinel Zonte, Vijay Raghavan, Iulian C. Gradinariu, Gary Peter Moscaluk, Roger Bettman, Vineet Argrawal, Samuel Leshner
  • Patent number: 10998019
    Abstract: 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: Grant
    Filed: December 16, 2019
    Date of Patent: May 4, 2021
    Assignee: Longitude Flash Memory Solutions, Ltd.
    Inventors: Cristinel Zonte, Vijay Raghavan, Iulian C. Gradinariu, Gary Peter Moscaluk, Roger Bettman, Vineet Argrawal, Samuel Leshner
  • Publication number: 20200234746
    Abstract: 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: Application
    Filed: December 16, 2019
    Publication date: July 23, 2020
    Inventors: Cristinel Zonte, Vijay Raghavan, Iulian C. Gradinariu, Gary Peter Moscaluk, Roger Bettman, Vineet Argrawal, Samuel Leshner
  • Patent number: 10062423
    Abstract: 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: Grant
    Filed: September 16, 2016
    Date of Patent: August 28, 2018
    Assignee: Cypress Semiconductor Corporation
    Inventors: Cristinel Zonte, Vijay Raghavan, Iulian C. Gradinariu, Gary Peter Moscaluk, Roger Bettman, Vineet Argrawal, Samuel Leshner
  • Patent number: 9866216
    Abstract: 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: Grant
    Filed: August 25, 2016
    Date of Patent: January 9, 2018
    Assignee: Cypress Semiconductor Corporation
    Inventors: Iulian C. Gradinariu, Jayant Ashokkumar, Bogdan Samson, Vijay Raghavan
  • Patent number: 9639226
    Abstract: 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: Grant
    Filed: December 10, 2015
    Date of Patent: May 2, 2017
    Assignee: CYPRESS SEMICONDUCTOR CORPORATION
    Inventor: Iulian C. Gradinariu
  • Publication number: 20170098468
    Abstract: 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: Application
    Filed: September 16, 2016
    Publication date: April 6, 2017
    Inventors: Cristinel Zonte, Vijay Raghavan, Iulian C. Gradinariu, Gary Peter Moscaluk, Roger Bettman, Vineet Argrawal, Samuel Leshner
  • Publication number: 20170060297
    Abstract: 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: Application
    Filed: December 10, 2015
    Publication date: March 2, 2017
    Inventor: Iulian C. Gradinariu
  • Patent number: 9449655
    Abstract: 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: Grant
    Filed: December 11, 2015
    Date of Patent: September 20, 2016
    Assignee: Cypress Semiconductor Corporation
    Inventors: Cristinel Zonte, Vijay Raghavan, Iulian C. Gradinariu, Gary Peter Moscaluk, Roger Bettman, Vineet Argrawal, Samuel Leshner
  • Patent number: 9438240
    Abstract: 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: Grant
    Filed: December 10, 2015
    Date of Patent: September 6, 2016
    Assignee: Cypress Semiconductor Corporation
    Inventors: Iulian C. Gradinariu, Jayant Ashokkumar, Bogdan Samson, Vijay Raghavan
  • Patent number: 8587365
    Abstract: Disclosed is an improved substrate bias feedback circuit, and a method for operating the same.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: November 19, 2013
    Assignee: Cypress Semiconductor Corporation
    Inventors: Vijay Kumar Srinivasa Raghavan, Iulian C. Gradinariu
  • Patent number: 7683701
    Abstract: 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: Grant
    Filed: December 29, 2005
    Date of Patent: March 23, 2010
    Assignee: Cypress Semiconductor Corporation
    Inventors: Bogdan I. Georgescu, Iulian C. Gradinariu
  • Patent number: 6674682
    Abstract: 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: Grant
    Filed: July 19, 2002
    Date of Patent: January 6, 2004
    Assignee: Cypress Semiconductor Corp.
    Inventors: Keith A. Ford, Iulian C. Gradinariu, Bogdan I. Georgescu, Sean B. Mulholland, John J. Silver, Danny L. Rose
  • Patent number: 6662315
    Abstract: 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: Grant
    Filed: November 26, 2002
    Date of Patent: December 9, 2003
    Assignee: Cypress Semiconductor Corporation
    Inventors: Iulian C. Gradinariu, John J. Silver, Keith A. Ford, Sean B. Mulholland
  • Patent number: 6535437
    Abstract: 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: Grant
    Filed: June 15, 2001
    Date of Patent: March 18, 2003
    Assignee: Cypress Semiconductor Corp.
    Inventors: John J. Silver, Iulian C. Gradinariu, Bogdan I. Georgescu, Keith A. Ford, Sean B. Mulholland, Danny L. Rose
  • Patent number: 6530040
    Abstract: 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: Grant
    Filed: September 22, 1999
    Date of Patent: March 4, 2003
    Assignee: Cypress Semiconductor Corp.
    Inventors: Iulian C. Gradinariu, John J. Silver, Keith A. Ford, Sean B. Mulholland
  • Publication number: 20020191470
    Abstract: 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: Application
    Filed: July 19, 2002
    Publication date: December 19, 2002
    Inventors: Keith A. Ford, Iulian C. Gradinariu, Bogdan I. Georgescu, Sean B. Mulholland, John J. Silver, Danny L. Rose