Patents by Inventor Raviprakash Suryanarayana Rao

Raviprakash Suryanarayana Rao 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: 10593413
    Abstract: A memory array comprising a word line and a bit line is disclosed. Each of a plurality of memory cells of the memory array has a first terminal connected to the bit line and a current path between the first terminal and a respective second terminal. A first memory cell of the plurality of memory cells has the second terminal coupled to receive a first supply voltage when selected by the word line. A second memory cell of the plurality of memory cells has the second terminal coupled to receive a voltage different from the first supply voltage when the first memory cell is selected by the word line.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: March 17, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Stephen Keith Heinrich-Barna, Raviprakash Suryanarayana Rao
  • Publication number: 20180366205
    Abstract: A memory array comprising a word line and a bit line is disclosed. Each of a plurality of memory cells of the memory array has a first terminal connected to the bit line and a current path between the first terminal and a respective second terminal. A first memory cell of the plurality of memory cells has the second terminal coupled to receive a first supply voltage when selected by the word line. A second memory cell of the plurality of memory cells has the second terminal coupled to receive a voltage different from the first supply voltage when the first memory cell is selected by the word line.
    Type: Application
    Filed: August 24, 2018
    Publication date: December 20, 2018
    Inventors: Stephen Keith Heinrich-Barna, Raviprakash Suryanarayana Rao
  • Patent number: 10062443
    Abstract: A memory array comprising a word line and a bit line is disclosed. Each of a plurality of memory cells of the memory array has a first terminal connected to the bit line and a current path between the first terminal and a respective second terminal. A first memory cell of the plurality of memory cells has the second terminal coupled to receive a first supply voltage when selected by the word line. A second memory cell of the plurality of memory cells has the second terminal coupled to receive a voltage different from the first supply voltage when the first memory cell is selected by the word line.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: August 28, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Stephen Keith Heinrich-Barna, Raviprakash Suryanarayana Rao
  • Publication number: 20180012668
    Abstract: A memory array comprising a word line and a bit line is disclosed. Each of a plurality of memory cells of the memory array has a first terminal connected to the bit line and a current path between the first terminal and a respective second terminal. A first memory cell of the plurality of memory cells has the second terminal coupled to receive a first supply voltage when selected by the word line. A second memory cell of the plurality of memory cells has the second terminal coupled to receive a voltage different from the first supply voltage when the first memory cell is selected by the word line.
    Type: Application
    Filed: September 20, 2017
    Publication date: January 11, 2018
    Inventors: Stephen Keith Heinrich-Barna, Raviprakash Suryanarayana Rao
  • Patent number: 9799408
    Abstract: A memory array comprising a word line and a bit line is disclosed. Each of a plurality of memory cells of the memory array has a first terminal connected to the bit line and a current path between the first terminal and a respective second terminal. A first memory cell of the plurality of memory cells has the second terminal coupled to receive a first supply voltage when selected by the word line. A second memory cell of the plurality of memory cells has the second terminal coupled to receive a voltage different from the first supply voltage when the first memory cell is selected by the word line.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: October 24, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Stephen Keith Heinrich-Barna, Raviprakash Suryanarayana Rao
  • Publication number: 20170243659
    Abstract: A memory array comprising a word line and a bit line is disclosed. Each of a plurality of memory cells of the memory array has a first terminal connected to the bit line and a current path between the first terminal and a respective second terminal. A first memory cell of the plurality of memory cells has the second terminal coupled to receive a first supply voltage when selected by the word line. A second memory cell of the plurality of memory cells has the second terminal coupled to receive a voltage different from the first supply voltage when the first memory cell is selected by the word line.
    Type: Application
    Filed: February 23, 2016
    Publication date: August 24, 2017
    Inventors: Stephen Keith Heinrich-Barna, Raviprakash Suryanarayana Rao
  • Patent number: 9236096
    Abstract: An embodiment of the invention discloses a method for writing concurrently a binary logical value to one or more dummy memory cells in a dummy bit line pair. A diode is electrically connected between a power supply and the positive power supply line connected to the dummy memory cells. The binary logical value is then driven on to the dummy bit line pair. Next, one or more dummy word lines are driven to a logical high allowing selected dummy memory cells to be written with the binary logical value. After the selected dummy memory cells have been written to, the one or more dummy word lines are driven to a logical low. Next the diode is disabled by turning on a PFET connected between the power supply and the positive power supply line. Turning on the PFET also electrically connects the power supply to the positive power supply line.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: January 12, 2016
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Srinivasa Raghavan Sridhara, Raviprakash Suryanarayana Rao
  • Publication number: 20140071735
    Abstract: An embodiment of the invention discloses a method for writing concurrently a binary logical value to one or more dummy memory cells in a dummy bit line pair. A diode is electrically connected between a power supply and the positive power supply line connected to the dummy memory cells. The binary logical value is then driven on to the dummy bit line pair. Next, one or more dummy word lines are driven to a logical high allowing selected dummy memory cells to be written with the binary logical value. After the selected dummy memory cells have been written to, the one or more dummy word lines are driven to a logical low. Next the diode is disabled by turning on a PFET connected between the power supply and the positive power supply line. Turning on the PFET also electrically connects the power supply to the positive power supply line.
    Type: Application
    Filed: September 12, 2012
    Publication date: March 13, 2014
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Srinivasa Raghavan Sridhara, Raviprakash Suryanarayana Rao
  • Patent number: 8305814
    Abstract: Single-ended sense amplifier circuit. An example of the sense amplifier circuit includes an inverter coupled to a bit line to read a bit cell. The sense amplifier circuit also includes a first circuit responsive to a control signal to charge the bit line for a predefined time. Further, the sense amplifier circuit includes a second circuit coupled to the bit line and responsive to a read 1 operation to retain voltage of the bit line above a first threshold to render the inverter to read 1 from the bit cell.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: November 6, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: Shahid Ali, Raviprakash Suryanarayana Rao
  • Publication number: 20100124089
    Abstract: Single-ended sense amplifier circuit. An example of the sense amplifier circuit includes an inverter coupled to a bit line to read a bit cell. The sense amplifier circuit also includes a first circuit responsive to a control signal to charge the bit line for a predefined time. Further, the sense amplifier circuit includes a second circuit coupled to the bit line and responsive to a read 1 operation to retain voltage of the bit line above a first threshold to render the inverter to read 1 from the bit cell.
    Type: Application
    Filed: November 12, 2009
    Publication date: May 20, 2010
    Applicant: Texas Instruments Incorporated
    Inventors: Shahid Ali, Raviprakash Suryanarayana Rao