Patents by Inventor Gaurav Malhotra

Gaurav Malhotra 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: 11011106
    Abstract: A method for compensating for characteristics of a transistor. In some embodiments, the method includes: measuring an error value, the error value being a difference between: a target current and a current driven by the transistor when the transistor is controlled by a compensated control signal based on an input control signal; adding to a first compensation parameter a first adjustment; adding to a second compensation parameter a second adjustment; and applying to a gate of the transistor a voltage equal to the sum of: the second compensation parameter, and the product of: the first compensation parameter, and an uncompensated drive voltage.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: May 18, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gaurav Malhotra, Jalil Kamali
  • Publication number: 20210049951
    Abstract: A system and method for operating a sensing circuit for sensing a pixel current of a pixel of a display panel using correlated double sampling. In some embodiments, the method includes: during a first interval of time, resetting a pixel sensing circuit; during a third interval of time following the first interval of time, operating the pixel sensing circuit in an integration mode; during a fourth interval of time following the third interval of time, operating the pixel sensing circuit in a hold mode; and during a fifth interval of time following the fourth interval of time, operating the pixel sensing circuit in the integration mode.
    Type: Application
    Filed: October 17, 2019
    Publication date: February 18, 2021
    Inventors: Amir Amirkhany, Anup P. Jose, Gaurav Malhotra, Younghoon Song, Mohamed Elzeftawi
  • Publication number: 20210049963
    Abstract: A system and method for estimating and using pixel compensation coefficients. In some embodiments, the method includes, during a first time interval: comparing a first pixel current for a pixel of the display with a first reference current, to obtain a first pixel current error signal, the first pixel current error signal being the sign of a difference between the first pixel current and the first reference current; and updating one or more compensation coefficients for the pixel, based on the first pixel current error signal.
    Type: Application
    Filed: October 18, 2019
    Publication date: February 18, 2021
    Inventors: Amir Amirkhany, Anup P. Jose, Gaurav Malhotra, Younghoon Song, Mohamed Elzeftawi
  • Patent number: 10732766
    Abstract: A transceiver system includes: a touch screen panel; a transmitter to transmit an input signal to an input line of the touch screen panel; a receiver to receive an output signal from an output line of the touch screen panel to detect a touch event on the touchscreen panel; and a state machine to set transmission frequencies of the input signal within a wideband operating frequency of the touch screen panel, and to calibrate the receiver to filter the output signal at the transmission frequencies of the input signal.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: August 4, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventor: Gaurav Malhotra
  • Patent number: 10528204
    Abstract: A system and method for digital differential detection includes a capacitive sensor having a first node and a second node, a transmitter configured to transmit an input signal through the first node and the second node, and a receiver coupled to the first node and the second node. The receiver is configured to receive a first modified input signal from the first node and a second modified input signal from the second node. The receiver includes first and second analog-to-digital converters configured to convert the first modified input signal to a first digital signal and the second modified input signal to a second digital signal. The receiver also includes a first differencing circuit configured to calculate a first difference between the first digital signal and a second digital signal and a decision circuit configured to output a result according to the first difference.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: January 7, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gaurav Malhotra, Kenneth Hu
  • Patent number: 10454485
    Abstract: An apparatus for providing timing recovery in high speed links includes: an error sampler receiving an input signal and sampling the input signal; a phase detector comprising an error slicer; and a voltage-controlled oscillator (VCO). The error slicer generates an error signal corresponding to the input signal with respect to a voltage threshold. The phase detector generates a bit data corresponding to the error signal. The VCO changes a frequency of an output signal based on the bit data and locks the frequency at a phase in which an average of a plurality of input signals is equal to the voltage threshold.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: October 22, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Gaurav Malhotra
  • Publication number: 20190294271
    Abstract: A system and method for digital differential detection includes a capacitive sensor having a first node and a second node, a transmitter configured to transmit an input signal through the first node and the second node, and a receiver coupled to the first node and the second node. The receiver is configured to receive a first modified input signal from the first node and a second modified input signal from the second node. The receiver includes first and second analog-to-digital converters configured to convert the first modified input signal to a first digital signal and the second modified input signal to a second digital signal. The receiver also includes a first differencing circuit configured to calculate a first difference between the first digital signal and a second digital signal and a decision circuit configured to output a result according to the first difference.
    Type: Application
    Filed: May 11, 2018
    Publication date: September 26, 2019
    Inventors: Gaurav Malhotra, Kenneth Hu
  • Patent number: 10397216
    Abstract: The disclosed computer-implemented method for performing secure backup operations may include (i) identifying a backup server that has been designated to perform a backup task for a backup client, (ii) prior to facilitating the backup task on the backup client (a) identifying both a trust level of the designated backup server and a sensitivity level of the backup task and (b) determining whether the trust level of the designated backup server is appropriate for the sensitivity level of the backup task, and (iii) facilitating the backup task on the backup client based on the determination of whether the trust level of the designated backup server is appropriate for the sensitivity level of the backup task. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: August 27, 2019
    Assignee: Veritas Technologies LLC
    Inventors: Mukund Agrawal, Gaurav Malhotra, Vikas Kumar, Nachiket Tanksale
  • Patent number: 10382429
    Abstract: The disclosed computer-implemented method for performing secure backup operations may include (i) identifying a group of backup servers with heterogeneous computing environments that provide backup services for a backup client, (ii) determining, for each backup server within the group, a trust level of the backup server by identifying at least one security characteristic of the backup server, (iii) deploying, on each of the backup servers, a signed certificate that enables the backup server to transfer backup data with a security level that corresponds to the trust level of the backup server, and (iv) performing secure backup operations for the backup client by (a) identifying a sensitivity level of a backup task initiated by the backup client and (b) assigning the backup task to a backup server within the group of backup servers that has a signed certificate with a security level appropriate for the sensitivity level of the backup task.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: August 13, 2019
    Assignee: Veritas Technologies LLC
    Inventors: Mukund Agrawal, Gaurav Malhotra, Vikas Kumar, Nachiket Tanksale
  • Patent number: 10256784
    Abstract: A system and method for setting analog front end in a serial receiver. The serial receiver includes a decision feedback equalizer. During initialization, taps of the decision feedback equalizer other than the zeroth tap are disabled, and the zeroth tap is used to estimate the amplitude of the signal at the output of the analog front end. The analog front end gain is iteratively adjusted until the estimated value of the zeroth tap is within a set range.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: April 9, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gaurav Malhotra, Amir Amirkhany
  • Patent number: 10236892
    Abstract: A data communication system includes a transmitter, a channel, and a receiver includes a Clock and Data Recovery (CDR) phase detector that is configured to: calculate an overall pulse response of the data communication system; obtain a function value for each of a plurality of phases, the plurality of phases corresponding to a resolution per symbol; set a crossing phase to be a phase at which this value is minimum among the plurality of phase; and set the CDR locking phase to be the crossing phase plus a midpoint from among the plurality of phases.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: March 19, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Shiva Moballegh, Jalil Kamali, Gaurav Malhotra
  • Publication number: 20180316356
    Abstract: A data communication system includes a transmitter, a channel, and a receiver includes a Clock and Data Recovery (CDR) phase detector that is configured to: calculate an overall pulse response of the data communication system; obtain a function value for each of a plurality of phases, the plurality of phases corresponding to a resolution per symbol; set a crossing phase to be a phase at which this value is minimum among the plurality of phase; and set the CDR locking phase to be the crossing phase plus a midpoint from among the plurality of phases.
    Type: Application
    Filed: April 24, 2018
    Publication date: November 1, 2018
    Inventors: Shiva Moballegh, Jalil Kamali, Gaurav Malhotra
  • Publication number: 20180145970
    Abstract: The disclosed computer-implemented method for performing secure backup operations may include (i) identifying a backup server that has been designated to perform a backup task for a backup client, (ii) prior to facilitating the backup task on the backup client (a) identifying both a trust level of the designated backup server and a sensitivity level of the backup task and (b) determining whether the trust level of the designated backup server is appropriate for the sensitivity level of the backup task, and (iii) facilitating the backup task on the backup client based on the determination of whether the trust level of the designated backup server is appropriate for the sensitivity level of the backup task. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Application
    Filed: November 18, 2016
    Publication date: May 24, 2018
    Inventors: Mukund Agrawal, Gaurav Malhotra, Vikas Kumar, Nachiket Tanksale
  • Publication number: 20180145969
    Abstract: The disclosed computer-implemented method for performing secure backup operations may include (i) identifying a group of backup servers with heterogeneous computing environments that provide backup services for a backup client, (ii) determining, for each backup server within the group, a trust level of the backup server by identifying at least one security characteristic of the backup server, (iii) deploying, on each of the backup servers, a signed certificate that enables the backup server to transfer backup data with a security level that corresponds to the trust level of the backup server, and (iv) performing secure backup operations for the backup client by (a) identifying a sensitivity level of a backup task initiated by the backup client and (b) assigning the backup task to a backup server within the group of backup servers that has a signed certificate with a security level appropriate for the sensitivity level of the backup task.
    Type: Application
    Filed: November 18, 2016
    Publication date: May 24, 2018
    Inventors: Mukund Agrawal, Gaurav Malhotra, Vikas Kumar, Nachiket Tanksale
  • Publication number: 20180059867
    Abstract: A transceiver system includes: a touch screen panel; a transmitter to transmit an input signal to an input line of the touch screen panel; a receiver to receive an output signal from an output line of the touch screen panel to detect a touch event on the touchscreen panel; and a state machine to set transmission frequencies of the input signal within a wideband operating frequency of the touch screen panel, and to calibrate the receiver to filter the output signal at the transmission frequencies of the input signal.
    Type: Application
    Filed: November 18, 2016
    Publication date: March 1, 2018
    Inventor: GAURAV MALHOTRA
  • Patent number: 9866412
    Abstract: A method for estimating performance of a serial communication channel using processing circuits. The channel is configured to transmit a binary input stream from a transmitting end to an output stream at a receiving end. The method includes modeling by the processing circuits the channel at the receiving end as a first finite impulse response (FIR) system. The modeling includes estimating a cursor pulse response of the first FIR system by analyzing the output stream received at the receiving end, and estimating one or more pre-cursor or post-cursor pulse responses of the first FIR system from the received output stream using the estimated cursor pulse response. The method further includes determining by the processing circuits a performance metric by using the estimated one or more pre-cursor or post-cursor pulse responses.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: January 9, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gaurav Malhotra, Jalil Kamali
  • Patent number: 9858381
    Abstract: A method for manufacturing a serial link including a channel and a receiver, the link including linear time-invariant elements, the receiver including a continuous-time linear equalizer (CTLE) including a nonlinear block, and a slicer having an input. The method includes: for each of a plurality of candidate CTLE configurations: calculating a first probability density function (PDF), corresponding to a first signal value, at the input of the nonlinear block, calculating a first PDF, corresponding to the first signal value, at the output of the nonlinear block; calculating a second PDF, corresponding to a second signal value, at the input of the nonlinear block, calculating a second PDF, corresponding to the second signal value, at the output of the nonlinear block; and calculating a bit error rate.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: January 2, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventor: Gaurav Malhotra
  • Publication number: 20170279428
    Abstract: A system and method for setting analog front end in a serial receiver. The serial receiver includes a decision feedback equalizer. During initialization, taps of the decision feedback equalizer other than the zeroth tap are disabled, and the zeroth tap is used to estimate the amplitude of the signal at the output of the analog front end. The analog front end gain is iteratively adjusted until the estimated value of the zeroth tap is within a set range.
    Type: Application
    Filed: June 13, 2017
    Publication date: September 28, 2017
    Inventors: Gaurav Malhotra, Amir Amirkhany
  • Publication number: 20170222840
    Abstract: A method for estimating performance of a serial communication channel using processing circuits. The channel is configured to transmit a binary input stream from a transmitting end to an output stream at a receiving end. The method includes modeling by the processing circuits the channel at the receiving end as a first finite impulse response (FIR) system. The modeling includes estimating a cursor pulse response of the first FIR system by analyzing the output stream received at the receiving end, and estimating one or more pre-cursor or post-cursor pulse responses of the first FIR system from the received output stream using the estimated cursor pulse response. The method further includes determining by the processing circuits a performance metric by using the estimated one or more pre-cursor or post-cursor pulse responses.
    Type: Application
    Filed: August 5, 2016
    Publication date: August 3, 2017
    Inventors: Gaurav Malhotra, Jalil Kamali
  • Patent number: 9680436
    Abstract: A system and method for setting analog front end in a serial receiver. The serial receiver includes a decision feedback equalizer. During initialization, taps of the decision feedback equalizer other than the zeroth tap are disabled, and the zeroth tap is used to estimate the amplitude of the signal at the output of the analog front end. The analog front end gain is iteratively adjusted until the estimated value of the zeroth tap is within a set range.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: June 13, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gaurav Malhotra, Amir Amirkhany