Patents by Inventor Raghukiran Sreeramaneni

Raghukiran Sreeramaneni 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: 10566070
    Abstract: A method of operating an electronic device includes: precharging a fuse read node to an intermediate voltage less than an input voltage, wherein the fuse read node connects a fuse array and a fuse read circuit, the fuse array including a fuse cell configured to store information and the fuse read circuit configured to read the stored information; connecting the fuse cell to the fuse read node for reading the information; and determining, with the fuse read circuit, the information from the fuse cell based on changes to the intermediate voltage at the fuse read node.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: February 18, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Raghukiran Sreeramaneni, William J. Wilcox, Girish N. Cherussery
  • Patent number: 10529391
    Abstract: A device includes a signal input to receive a data input as part of a bit stream. The device also includes a reference input to receive a reference signal. The device further includes push circuitry to receive a first weight value, receive a first correction value, and generate a push signal based on the first weight value and the first correction value to selectively modify the data input as well as pull circuitry to receive a second weight value, receive a second correction value, and generate a pull signal based on the second weight value and the second correction value to selectively modify the data input.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: January 7, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Raghukiran Sreeramaneni, Jennifer E. Taylor
  • Publication number: 20190393231
    Abstract: A device includes a fuse-array mat including a plurality of fuse-array elements. Each fuse-array element includes a fuse comprising a fuse line having less than or equal to 50% of a dimension of the fuse line disposed over an active area of the fuse-array element, wherein the fuse is configured to be activated to indicate a fuse state of the fuse of two possible fuse states of the fuse. Additionally, each fuse-array element includes an access device comprising a gate line having more than 50% of a dimension of the gate line disposed over the active area of the fuse-array element.
    Type: Application
    Filed: June 26, 2018
    Publication date: December 26, 2019
    Inventor: Raghukiran Sreeramaneni
  • Patent number: 10491430
    Abstract: A device includes one or more memory banks configured to store data. The device also includes a data receiver configured to receive distorted input data as part of a data stream, apply a correction factor to the distorted input data to offset inter-symbol interference from the data stream on the distorted input data, and generate the data by applying the correction factor to the distorted data. The device further includes a test circuit internal to the device, wherein the test circuit is configured to generate the data stream.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: November 26, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Raghukiran Sreeramaneni, Jennifer E. Taylor, Liang Liu
  • Publication number: 20190356517
    Abstract: A device includes a voltage generator that generates a reference signal, a multi-level bias generator coupled to the voltage generator to receive the reference signal and generate a plurality of bias level signals based at least in part on the reference signal. The multi-level bias generator transmits the plurality of bias level signals to a plurality of multiplexers that each receive a select signal to select a subset of bias level signals of the plurality of bias level signals based. The device also includes an adjustment circuit of a decision feedback equalizer that receives a respective selected subset of bias level signals from one multiplexer of the plurality of multiplexers and utilizes the respective selected subset of bias level signals to compensate for inter-symbol interference of a bit due to a previously received bit of a bit stream.
    Type: Application
    Filed: July 30, 2019
    Publication date: November 21, 2019
    Inventors: Raghukiran Sreeramaneni, Daniel B. Penney
  • Patent number: 10482932
    Abstract: A device includes a combinational circuit configured to create a one or more distortion correction factors used offset inter-symbol interference from a data stream on a distorted bit. The device also includes a selection circuit coupled to the combinational circuit. The selection circuit includes a feedback pin configured to receive a control signal and an output, wherein the selection circuit is configured to select a first distortion correction factor of the one or more distortion correction factors based upon the control signal and transmit the first distortion correction factor from the output.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: November 19, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Jennifer E. Taylor, Raghukiran Sreeramaneni
  • Publication number: 20190341089
    Abstract: A device includes a signal input to receive a data input as part of a bit stream. The device also includes a reference input to receive a reference signal. The device further includes push circuitry to receive a first weight value, receive a first correction value, and generate a push signal based on the first weight value and the first correction value to selectively modify the data input as well as pull circuitry to receive a second weight value, receive a second correction value, and generate a pull signal based on the second weight value and the second correction value to selectively modify the data input.
    Type: Application
    Filed: July 19, 2019
    Publication date: November 7, 2019
    Inventors: Raghukiran Sreeramaneni, Jennifer E. Taylor
  • Patent number: 10447508
    Abstract: A device includes a first bias level generator to generate a first bias level of a plurality of bias levels and transmit the bias level having a first voltage value, a second bias level generator to generate a second bias level of the plurality of bias levels and transmit the second bias level having a second voltage value. The device also includes a voltage divider that interpolates a subset of bias levels of the plurality of bias levels between the first bias level and the second bias level and supplies a selected bias level of the plurality of bias levels a control signal to an adjustment circuit of a decision feedback equalizer to compensate for inter-symbol interference of a bit due to a previously received bit of a bit stream.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: October 15, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Raghukiran Sreeramaneni, Jennifer E. Taylor
  • Publication number: 20190280907
    Abstract: A device includes a selection circuit that is configured to generate a bias level. The device also includes a combinational circuit coupled to the selection circuit. The combinational circuit is configured to generate a distortion correction factor used offset inter-symbol interference from a data stream on a distorted bit based on the bias level to generate a correction signal. The device additionally includes a latching element coupled to the combinational circuit and configured to receive the first correction signal.
    Type: Application
    Filed: May 29, 2019
    Publication date: September 12, 2019
    Inventors: Raghukiran Sreeramaneni, Jennifer E. Taylor
  • Patent number: 10411919
    Abstract: A device includes a voltage generator that generates a reference signal, a multi-level bias generator coupled to the voltage generator to receive the reference signal and generate a plurality of bias level signals based at least in part on the reference signal. The multi-level bias generator transmits the plurality of bias level signals to a plurality of multiplexers that each receive a select signal to select a subset of bias level signals of the plurality of bias level signals based. The device also includes an adjustment circuit of a decision feedback equalizer that receives a respective selected subset of bias level signals from one multiplexer of the plurality of multiplexers and utilizes the respective selected subset of bias level signals to compensate for inter-symbol interference of a bit due to a previously received bit of a bit stream.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: September 10, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Raghukiran Sreeramaneni, Daniel B. Penney
  • Patent number: 10373659
    Abstract: A device includes a signal input to receive a data input as part of a bit stream. The device also includes a reference input to receive a reference signal. The device further includes push circuitry to receive a first weight value, receive a first correction value, and generate a push signal based on the first weight value and the first correction value to selectively modify the data input as well as pull circuitry to receive a second weight value, receive a second correction value, and generate a pull signal based on the second weight value and the second correction value to selectively modify the data input.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: August 6, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Raghukiran Sreeramaneni, Jennifer E. Taylor
  • Patent number: 10360989
    Abstract: A method of operating an electronic device includes: generating a fuse read output based on reading a fuse cell at a predetermined data location in a fuse array, wherein the predetermined data location is configured to store predetermined data pattern; comparing the fuse read output to the predetermined data pattern; and generating a read-enable trigger based on the fuse read output matching the predetermined data pattern, wherein the read-enable trigger is for reading content stored in the fuse array and for broadcasting the content to circuits within the electronic device.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: July 23, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Raghukiran Sreeramaneni, John E. Riley, Yu-Feng Chen
  • Publication number: 20190222444
    Abstract: A device includes a first bias level generator to generate a first bias level of a plurality of bias levels and transmit the bias level having a first voltage value, a second bias level generator to generate a second bias level of the plurality of bias levels and transmit the second bias level having a second voltage value. The device also includes a voltage divider that interpolates a subset of bias levels of the plurality of bias levels between the first bias level and the second bias level and supplies a selected bias level of the plurality of bias levels a control signal to an adjustment circuit of a decision feedback equalizer to compensate for inter-symbol interference of a bit due to a previously received bit of a bit stream.
    Type: Application
    Filed: January 16, 2018
    Publication date: July 18, 2019
    Inventors: Raghukiran Sreeramaneni, Jennifer E. Taylor
  • Publication number: 20190222445
    Abstract: A device includes a voltage generator that generates a reference signal, a multi-level bias generator coupled to the voltage generator to receive the reference signal and generate a plurality of bias level signals based at least in part on the reference signal. The multi-level bias generator transmits the plurality of bias level signals to a plurality of multiplexers that each receive a select signal to select a subset of bias level signals of the plurality of bias level signals based. The device also includes an adjustment circuit of a decision feedback equalizer that receives a respective selected subset of bias level signals from one multiplexer of the plurality of multiplexers and utilizes the respective selected subset of bias level signals to compensate for inter-symbol interference of a bit due to a previously received bit of a bit stream.
    Type: Application
    Filed: November 14, 2018
    Publication date: July 18, 2019
    Inventors: Raghukiran Sreeramaneni, Daniel B. Penney
  • Publication number: 20190215198
    Abstract: A device includes a selection circuit that is configured to generate a bias level. The device also includes a combinational circuit coupled to the selection circuit. The combinational circuit is configured to generate a distortion correction factor used offset inter-symbol interference from a data stream on a distorted bit based on the bias level to generate a correction signal. The device additionally includes a latching element coupled to the combinational circuit and configured to receive the first correction signal.
    Type: Application
    Filed: January 8, 2018
    Publication date: July 11, 2019
    Inventors: Raghukiran Sreeramaneni, Jennifer E. Taylor
  • Patent number: 10348534
    Abstract: A device includes a selection circuit that is configured to generate a bias level. The device also includes a combinational circuit coupled to the selection circuit. The combinational circuit is configured to generate a distortion correction factor used offset inter-symbol interference from a data stream on a distorted bit based on the bias level to generate a correction signal. The device additionally includes a latching element coupled to the combinational circuit and configured to receive the first correction signal.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: July 9, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Raghukiran Sreeramaneni, Jennifer E. Taylor
  • Publication number: 20190199557
    Abstract: A device including an equalizer that includes a first input configured to receive an input signal, a second input configured to receive a reference signal, and a third input configured to receive an adjustment signal. The equalizer also includes a first output configured to transmit a corrected signal, wherein the corrected signal is generated based on data outputs controlled via the input signal, the reference signal, and a clock signal, wherein the data outputs are modified based on the first adjustment signal, wherein corrected signal offsets inter-symbol interference on the input signal based on a data bit received at the first input prior to reception of the input signal.
    Type: Application
    Filed: February 28, 2019
    Publication date: June 27, 2019
    Inventors: Jennifer E. Taylor, Raghukiran Sreeramaneni
  • Publication number: 20190198068
    Abstract: A device includes a signal input to receive a data input as part of a bit stream. The device also includes a reference input to receive a reference signal. The device further includes push circuitry to receive a first weight value, receive a first correction value, and generate a push signal based on the first weight value and the first correction value to selectively modify the data input as well as pull circuitry to receive a second weight value, receive a second correction value, and generate a pull signal based on the second weight value and the second correction value to selectively modify the data input.
    Type: Application
    Filed: December 21, 2017
    Publication date: June 27, 2019
    Inventors: Raghukiran Sreeramaneni, Jennifer E. Taylor
  • Publication number: 20190172546
    Abstract: A method of operating an electronic device includes: generating a fuse read output based on reading a fuse cell at a predetermined data location in a fuse array, wherein the predetermined data location is configured to store predetermined data pattern; comparing the fuse read output to the predetermined data pattern; and generating a read-enable trigger based on the fuse read output matching the predetermined data pattern, wherein the read-enable trigger is for reading content stored in the fuse array and for broadcasting the content to circuits within the electronic device.
    Type: Application
    Filed: December 4, 2017
    Publication date: June 6, 2019
    Inventors: Raghukiran Sreeramaneni, John E. Riley, Yu-Feng Chen
  • Patent number: 10304554
    Abstract: A circuit may include a first switch to pre-charge a first voltage line to a first voltage for a first amount of time, such that the first voltage is an opposite polarity as compared to a second voltage coupled to the first voltage line when a first fuse is blown. The circuit may also include a second switch to pre-charge a second voltage line to a third voltage for the first amount of time, such that the third voltage is an opposite polarity as compared to a fourth voltage coupled to the second voltage line when a second fuse is blown. The circuit also includes a latch circuit to amplify a first voltage signal present on the first voltage line and amplify a second voltage signal present on the second voltage line after the first amount of time expires.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: May 28, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Raghukiran Sreeramaneni, Ramachandra R. Jogu, William J. Wilcox, Girish N. Cherussery