Patents by Inventor Javed S. Barkatullah

Javed S. Barkatullah 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: 10657065
    Abstract: A memory having a delayed write-back to the array of data corresponding to a previously opened page allows delays associated with write-back operations to be avoided. After an initial activation opens a first page and the read/write operations for that page are complete, write-back of the open page to the array of memory cells is delayed until after completion of a subsequent activate operation that opens a new page. Techniques to force a write-back in the absence of another activate operation are also disclosed.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: May 19, 2020
    Assignee: Everspin Technologies, Inc.
    Inventors: Thomas S. Andre, Syed M. Alam, Chitra K. Subramanian, Javed S. Barkatullah
  • Publication number: 20190213136
    Abstract: A memory having a delayed write-back to the array of data corresponding to a previously opened page allows delays associated with write-back operations to be avoided. After an initial activation opens a first page and the read/write operations for that page are complete, write-back of the open page to the array of memory cells is delayed until after completion of a subsequent activate operation that opens a new page. Techniques to force a write-back in the absence of another activate operation are also disclosed.
    Type: Application
    Filed: March 20, 2019
    Publication date: July 11, 2019
    Applicant: Everspin Technologies, Inc.
    Inventors: Thomas S. ANDRE, Syed M. ALAM, Chitra K. SUBRAMANIAN, Javed S. BARKATULLAH
  • Patent number: 10268591
    Abstract: A memory having a delayed write-back to the array of data corresponding to a previously opened page allows delays associated with write-back operations to be avoided. After an initial activation opens a first page and the read/write operations for that page are complete, write-back of the open page to the array of memory cells is delayed until after completion of a subsequent activate operation that opens a new page. Techniques to force a write-back in the absence of another activate operation are also disclosed.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: April 23, 2019
    Assignee: Everspin Technologies Inc.
    Inventors: Thomas Andre, Syed M. Alam, Chitra Subramanian, Javed S. Barkatullah
  • Publication number: 20180267899
    Abstract: A memory having a delayed write-back to the array of data corresponding to a previously opened page allows delays associated with write-back operations to be avoided. After an initial activation opens a first page and the read/write operations for that page are complete, write-back of the open page to the array of memory cells is delayed until after completion of a subsequent activate operation that opens a new page. Techniques to force a write-back in the absence of another activate operation are also disclosed.
    Type: Application
    Filed: May 22, 2018
    Publication date: September 20, 2018
    Applicant: Everspin Technologies, Inc.
    Inventors: Thomas Andre, Syed M. Alam, Chitra Subramanian, Javed S. Barkatullah
  • Patent number: 9990300
    Abstract: A memory having a delayed write-back to the array of data corresponding to a previously opened page allows delays associated with write-back operations to be avoided. After an initial activation opens a first page and the read/write operations for that page are complete, write-back of the open page to the array of memory cells is delayed until after completion of a subsequent activate operation that opens a new page. Techniques to force a write-back in the absence of another activate operation are also disclosed.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: June 5, 2018
    Assignee: EVERSPIN TECHNOLOGIES, INC.
    Inventors: Thomas Andre, Syed M. Alam, Chitra Subramanian, Javed S. Barkatullah
  • Publication number: 20170315920
    Abstract: A memory having a delayed write-back to the array of data corresponding to a previously opened page allows delays associated with write-back operations to be avoided. After an initial activation opens a first page and the read/write operations for that page are complete, write-back of the open page to the array of memory cells is delayed until after completion of a subsequent activate operation that opens a new page. Techniques to force a write-back in the absence of another activate operation are also disclosed.
    Type: Application
    Filed: April 28, 2016
    Publication date: November 2, 2017
    Inventors: Thomas Andre, Syed M. Alam, Chitra Subramanian, Javed S. Barkatullah
  • Patent number: 7342426
    Abstract: In some embodiments, a PLL with an output to provide a PLL output clock at a target frequency is provided. The PLL comprises a VCO to generate a clock to be used to generate the PLL output clock. Also provided is circuitry to maintain the VCO's bias level at a sufficient level if it is insufficient. Other embodiments may be disclosed herein.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: March 11, 2008
    Assignee: Intel Corporation
    Inventors: Nasser A. Kurd, Javed S. Barkatullah
  • Patent number: 7133751
    Abstract: On-die voltage and/or frequency detectors. For one aspect, an adaptive frequency clock generation circuit includes a droop detector to detect a supply voltage level and to cause the frequency of an on-die clock signal to be adjusted accordingly.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: November 7, 2006
    Assignee: Intel Corporation
    Inventors: Nasser A. Kurd, Javed S. Barkatullah
  • Patent number: 7102402
    Abstract: A circuit for generating and distributing highly accurate and stable clocks on a large integrated die is described. A Digital De-skew System is used to help prevent metastability and dither, provide a wide controllable delay range, and alternate sampling of phase detectors.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: September 5, 2006
    Assignee: Intel Corporation
    Inventors: Nasser A. Kurd, Javed S. Barkatullah, Charles Dike
  • Patent number: 7042259
    Abstract: A clock generating apparatus is provided that includes a first phase lock loop device powered by an analog (or fixed) power supply voltage and a second phase lock loop device powered by the analog power supply voltage and a digital power supply voltage. The second phase lock loop device to output a clock signal having an adaptive frequency based on the digital power supply voltage.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: May 9, 2006
    Assignee: Intel Corporation
    Inventors: Nasser A. Kurd, Javed S. Barkatullah, Paul Madland
  • Patent number: 7009437
    Abstract: A clock duty cycle correction circuit. The duty cycle correction circuit is provided at a receiver in a clock distribution network to correct a duty cycle of a distributed clock signal.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: March 7, 2006
    Assignee: Intel Corporation
    Inventors: Thomas D. Fletcher, Javed S. Barkatullah
  • Patent number: 6922112
    Abstract: According to some embodiments, a plurality of ring oscillators are associated with a generation and/or distribution of a clock signal.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: July 26, 2005
    Assignee: Intel Corporation
    Inventors: Nasser A. Kurd, Javed S. Barkatullah
  • Patent number: 6922111
    Abstract: According to some embodiments, a clock signal having an adaptive frequency is provided.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: July 26, 2005
    Assignee: Intel Corporation
    Inventors: Nasser A. Kurd, Javed S. Barkatullah
  • Patent number: 6882238
    Abstract: On-die voltage and/or frequency detectors. For one aspect, an adaptive frequency clock generation circuit includes a droop detector to detect a supply voltage level and to cause the frequency of an on-die clock signal to be adjusted accordingly.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: April 19, 2005
    Assignee: Intel Corporation
    Inventors: Nasser A. Kurd, Javed S. Barkatullah
  • Publication number: 20040217792
    Abstract: A clock duty cycle correction circuit. The duty cycle correction circuit is provided at a receiver in a clock distribution network to correct a duty cycle of a distributed clock signal.
    Type: Application
    Filed: May 26, 2004
    Publication date: November 4, 2004
    Inventors: Thomas D. Fletcher, Javed S. Barkatullah
  • Publication number: 20040183613
    Abstract: On-die voltage and/or frequency detectors. For one aspect, an adaptive frequency clock generation circuit includes a droop detector to detect a supply voltage level and to cause the frequency of an on-die clock signal to be adjusted accordingly.
    Type: Application
    Filed: March 21, 2003
    Publication date: September 23, 2004
    Inventors: Nasser A. Kurd, Javed S. Barkatullah
  • Publication number: 20040119521
    Abstract: According to some embodiments, a clock signal having an adaptive frequency is provided.
    Type: Application
    Filed: December 20, 2002
    Publication date: June 24, 2004
    Inventors: Nasser A. Kurd, Javed S. Barkatullah
  • Patent number: 6750689
    Abstract: A clock duty cycle correction circuit. The duty cycle correction circuit is located at a receiver in a clock distribution network to correct a duty cycle of a distributed clock signal.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: June 15, 2004
    Assignee: Intel Corporation
    Inventors: Thomas D. Fletcher, Javed S. Barkatullah
  • Patent number: 6704892
    Abstract: In a bypass mode, a tester may bypass the core and input/output phase locked loops (PLLs) utilized by a processor to develop internal clock signals. External, tester-generated, phase shifted clock signals may be used to generate aligned high frequency signals to replace those generated by the phase locked loops. A plurality of phase shifted, tester generated clock signals may be subjected to an exclusive OR operation for generating input/output and core clock replacement signals. The clock signals received from the tester may also be aligned. Thus, a variety of skews may be compensated before entering the bypass mode. In some embodiments of the present invention, the core and I/O PLL clocks are used to establish alignment in a set-up phase and in other embodiments, the core and I/O PLL need not be utilized at all to generate appropriate internal clock signals from an external tester.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: March 9, 2004
    Assignee: Intel Corporation
    Inventors: Nasser A. Kurd, Javed S. Barkatullah, Tim Frodsham, David J. O'Brien
  • Publication number: 20030234694
    Abstract: According to some embodiments, a plurality of ring oscillators are associated with a generation and/or distribution of a clock signal.
    Type: Application
    Filed: June 25, 2002
    Publication date: December 25, 2003
    Inventors: Nasser A. Kurd, Javed S. Barkatullah