Patents by Inventor Pravin Kumar

Pravin Kumar 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: 10530185
    Abstract: Described herein are systems and methods that create a capacitive link based on a rotating cylinder capacitor. A cylindrical rotor rotates around a shaft and maintains an air gap between the cylindrical rotor and the shaft and to create one or more air gap capacitors. A first subsystem, comprising a light detection and ranging components, is coupled to the rotor. A second sub-subsystem, comprising data analysis functions, is coupled to the shaft. The first subsystem and the second subsystem are coupled via capacitive links created by the air gap capacitors. The communication signaling utilized on the capacitive links may be bi-directional and differential signaling. The first subsystem and the second subsystem may comprise a LIDAR light detection and ranging system. The second subsystem may power the first subsystem via inductive coupling.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: January 7, 2020
    Assignee: Velodyne Lidar, Inc.
    Inventors: Pravin Kumar Venkatesan, Abhilash Goyal, William B Etheridge, Rajesh Ramalingam Varadharajan
  • Patent number: 10509741
    Abstract: A single-ended receiver is coupled to an input-output (I/O) pin of a command and address (CA) bus. The receiver is configurable with dual-mode I/O support to operate the CA bus in a low-swing mode and a high-swing mode. The receiver is configurable to receive a first command on the I/O pin while in the high-swing mode, initiate calibration of the slave device to operate in the low-swing mode in response to the first command, switch the slave device to operate in the low-swing mode while the CA bus remains active, and to receive a second command on the I/O pin while in the low-swing mode.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: December 17, 2019
    Assignee: Rambus Inc.
    Inventors: Pravin Kumar Venkatesan, Liji Gopalakrishnan, Kashinath Ullhas Prabhu, Makarand Ajit Shirasgaonkar
  • Publication number: 20190369720
    Abstract: A method of identifying scleral reflections in an eye tracking system and a corresponding eye tracking system are disclosed. An image of an eye of a user from an image sensor is received, the image resulting from the image sensor detecting light from one or more illuminators reflected from the eye of the user. A glint is identified in the image, wherein the glint is a representation in the image of a reflection of light from a cornea of the eye of the user or from a sclera of the eye of the user. A first pixel intensity of the glint is determined, a second pixel intensity of neighbor pixels of the glint is determined, and an absolute value of the difference between the first pixel intensity of the glint and the second pixel intensity of the neighbor pixels of the glint is determined. The glint is identified as a representation of a reflection from the sclera of the eye of the user on condition that the determined absolute value of the difference is below a predetermine threshold value.
    Type: Application
    Filed: May 23, 2019
    Publication date: December 5, 2019
    Applicant: Tobii AB
    Inventors: Pravin Kumar Rana, Yimu Wang
  • Publication number: 20190358215
    Abstract: The present disclosure relates to a stable, reproducible and bioequivalent apixaban compositions, wherein the composition comprising apixaban having a D90 particle size of more than 100 microns, preferably between 300 and 1000 microns, and more preferably between 350 and 800 microns, and further comprising one or more pharmaceutically acceptable excipients. The present disclosure further provides a process for preparation of a pharmaceutical composition comprising apixaban by wet granulation.
    Type: Application
    Filed: February 1, 2018
    Publication date: November 28, 2019
    Inventors: DHANANJAY SATHE, SRIKANT V. PIMPLE, PRAVIN KUMAR MAURYA, DHANANJAY PRAMOD TATTU, MILIND VINAYAK SATHE, Sr.
  • Publication number: 20190280974
    Abstract: Methods, apparatus, and articles of manufacture to provide a multicast virtual private network (MVPN) are disclosed. Example methods to transmit multicast data in a network disclosed herein include monitoring, with a first network node, a multicast data flow to determine a characteristic for triggering a switch from a first logical topology for the multicast data flow to a second logical topology for the multicast data flow. Disclosed example methods also include, after the switch to the second logical topology, accessing a multicast data packet associated with a first multicast route generated for the multicast data flow from a second network node, and transmitting a first replication of the multicast data packet to a third network node via a unicast path, the first replication of the multicast data packet to include a first label provided by the third network node to identify the first multicast route.
    Type: Application
    Filed: May 29, 2019
    Publication date: September 12, 2019
    Inventors: Huajin Jeng, Pravin Kumar Johri, Han Nguyen, Samir Saad
  • Publication number: 20190252916
    Abstract: Described herein are systems and methods that create a capacitive link based on a rotating cylinder capacitor. A cylindrical rotor rotates around a shaft and maintains an air gap between the cylindrical rotor and the shaft and to create one or more air gap capacitors. A first subsystem, comprising a light detection and ranging components, is coupled to the rotor. A second sub-subsystem, comprising data analysis functions, is coupled to the shaft. The first subsystem and the second subsystem are coupled via capacitive links created by the air gap capacitors. The communication signaling utilized on the capacitive links may be bi-directional and differential signaling. The first subsystem and the second subsystem may comprise a LIDAR light detection and ranging system. The second subsystem may power the first subsystem via inductive coupling.
    Type: Application
    Filed: February 15, 2018
    Publication date: August 15, 2019
    Applicant: Velodyne LiDAR, Inc.
    Inventors: PRAVIN KUMAR VENKATESAN, ABHILASH GOYAL, WILLIAM B. ETHERIDGE, RAJESH RAMALINGAM VARADHARAJAN
  • Patent number: 10324529
    Abstract: An image of an eye of a user from an image sensor can be received, the image resulting from the image sensor detecting light from one or more illuminators reflected from the eye of the user. A glint is identified in the image as a representation in the image of a reflection of light from a cornea of the eye of the user or from a sclera of the eye of the user. A first pixel intensity of the glint is determined, a second pixel intensity of neighbor pixels of the glint is determined, and an absolute value of the difference between the first pixel intensity and the second pixel intensity is determined. The glint is identified as a representation of a reflection from the sclera of the eye of the user on condition that the determined absolute value of the difference is below a predetermine threshold value.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: June 18, 2019
    Assignee: Tobii AB
    Inventors: Pravin Kumar Rana, Yimu Wang
  • Patent number: 10313239
    Abstract: Methods, apparatus, and articles of manufacture to provide a multicast virtual private network (MVPN) are disclosed. An example method to transmit multicast data over a communication network includes receiving, at a first machine, a multicast data packet from an ingress provider edge router of the communication network, the multicast data packet associated with a multicast route, and transmitting a first replication of the multicast data packet from the first machine to a second machine via a first unicast path. The first replication of the multicast data packet includes a first label provided by the second machine to identify the multicast route in the second machine. Example methods further include receiving the first replication of the multicast data packet at the second machine via the first unicast path, and replicating the multicast data packet from the second machine to an egress provider edge router of the communication network.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: June 4, 2019
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Huajin Jeng, Pravin Kumar Johri, Han Nguyen, Samir Saad
  • Patent number: 10297263
    Abstract: A method includes extracting a voicing classification parameter of an audio signal and determining a filter coefficient of a low pass filter based on the voicing classification parameter. The method also includes filtering a low-band portion of the audio signal to generate a low-band audio signal and controlling an amplitude of a temporal envelope of the low-band audio signal based on the filter coefficient. The method also includes modulating a white noise signal based on the amplitude of the temporal envelope to generate a modulated white noise signal and scaling the modulated white noise signal based on a noise gain to generate a scaled modulated white noise signal. The method also includes mixing a scaled version of the low-band audio signal with the scaled modulated white noise signal to generate a high-band excitation signal that is used to generate a decoded version of the audio signal.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: May 21, 2019
    Assignee: Qualcomm Incorporated
    Inventors: Pravin Kumar Ramadas, Daniel J. Sinder, Stephane Pierre Villette, Vivek Rajendran
  • Publication number: 20190149366
    Abstract: A receiver includes a decision circuit, a circuit to adjust an input signal of the decision circuit, a correction circuit and a control circuit. The decision circuit makes a data decision based on an input signal of the decision circuit. The circuit to adjust the input signal of the decision circuit adjusts the input signal of the decision circuit based on an input correction signal. The correction circuit combines a plurality of signals corresponding to different input correction parameters into a preliminary input correction signal. An input of the correction circuit is coupled to an output of the decision circuit. The control circuit maps the preliminary input correction signal into the input correction signal using a nonlinear code mapping.
    Type: Application
    Filed: October 16, 2018
    Publication date: May 16, 2019
    Inventors: Marko Aleksic, Pravin Kumar Venkatesan, Simon Li, Nikhil Vaidya
  • Patent number: 10288879
    Abstract: An image of an eye of a user can be received from an image sensor, the image resulting from the image sensor detecting light from one or more illuminators reflected from the eye of the user and reflected from optic arrangements located between the one or more illuminators and the eye of the user, wherein the optic arrangements comprise features having a known pattern. Glints are identified in the image, wherein a glint is a representation in the image of a reflection of light from a cornea of the eye of the user and/or from a feature of the optic arrangements. Relative positions in the image of the identified glints are determined, and on condition that the relative positions conform with the known pattern, at least one glint of the identified glints is identified as a representation in the image of a reflection from a feature of the optic arrangements.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: May 14, 2019
    Assignee: Tobii AB
    Inventors: Pravin Kumar Rana, Yimu Wang
  • Publication number: 20190119691
    Abstract: The present disclosure relates to vectors for cloning and expressing genetic material including but not limiting to antibody gene or parts thereof and methods of generating said vectors. Said vectors express the antibody genes in different formats such as Fab or scFv as a part of intertransfer system, intratransfer system or direct cloning and expression in individual display systems. In particular, phage display technology is used to clone and screen potential antibody genes in phagemid which is followed by the transfer of said genes to yeast vector for further screening and identification of lead molecules against antigens. The present vectors have numerous advantages including uniquely designed inserts/expression cassettes resulting in efficient and smooth transfer of clonal population from phage to yeast vectors resulting in efficient library preparation and identification of lead molecules.
    Type: Application
    Filed: April 6, 2017
    Publication date: April 25, 2019
    Inventors: Sohang CHATTERJEE, Kavitha Iyer RODRIGUES, Maloy GHOSH, Sunit MAITY, Divya UNNIKRISHNAN, Yogendra Manjunath Bangalore MUNIRAJU, Sathyabalan MURUGESAN, Pavithra MUKUNDA, Bhargav PRASAD, Veeresha KAMANAGOWDA, Sanghamitra BHATTACHARJEE, Pravin Kumar DAKSHINAMURTHY, Vivek HALAN, Sankaranarayanan SRINIVASAN, Anuradha HORA, Bairavabalakumar NATARAJAN, Karthika NAIR, Aswini THANIGAIVEL, Amol MALIWALAVE, Bharath Ravindra SHENOY, Sahana Bhima RAO, Subhra Prakash CHAKRABARTY, Ashvini Kumar DUBEY, Amir KHAN, Ankurina SHARMA, Rashmi SHARMA, Anurag TIWARI, Santosh KUMAR, Shivani PATEL, Nikitha M
  • Publication number: 20190112358
    Abstract: The present disclosure relates to a method of obtaining a cell where fucosylation pathways are modified, leading to production of partially fucosylated and non-fucosylated protein products, specifically antibodies from the cell. The present disclosure employs the Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) technology. The method of the present disclosure targets the Fut8 gene and GMD gene in a cell. Such products are used in developing therapeutics and biomarkers, and in diagnosis and prognosis of diseases.
    Type: Application
    Filed: November 13, 2015
    Publication date: April 18, 2019
    Inventors: Bhargav Prasad, Divya Unnikrishnan, Jahnabi Hazarika, Kavitha Iyer Rodrigues, Maloy Ghosh, Pavithra M, Pravin Kumar D, Sanghamitra Bhattacharjee, Sathyabalan M, Sankaranarayanan Srinivasan, Sohang Chatterjee, Sunit Maity, Veeresha K, Vivek Halan, Yogendra Manjunath B. M., Anuradha Hora, Bairavabalakumar N, Karthika Nair, Aswini Thanigaivel, Amol Maliwalave, Bharath R Shenoy, Rajeshwari Pendse, Prabhat Kumar Pathak, Anisha Kurup, Sahana Bhima Rao
  • Publication number: 20190102327
    Abstract: A single-ended receiver is coupled to an input-output (I/O) pin of a command and address (CA) bus. The receiver is configurable with dual-mode I/O support to operate the CA bus in a low-swing mode and a high-swing mode. The receiver is configurable to receive a first command on the I/O pin while in the high-swing mode, initiate calibration of the slave device to operate in the low-swing mode in response to the first command, switch the slave device to operate in the low-swing mode while the CA bus remains active, and to receive a second command on the I/O pin while in the low-swing mode.
    Type: Application
    Filed: September 28, 2018
    Publication date: April 4, 2019
    Inventors: Pravin Kumar Venkatesan, Liji Gopalakrishnan, Kashinath Ullhas Prabhu, Makarand Ajit Shirasgaonkar
  • Publication number: 20190087712
    Abstract: A neural network processing system be configured to: (a) execute a first neural network and a second neural network; (b) run a first data segment through the first neural network to return a first score and run a second data segment through the second neural network to return a second score; (c) compare the first score with the second score; and (d) retrain the first neural network based on the comparison
    Type: Application
    Filed: September 18, 2017
    Publication date: March 21, 2019
    Inventors: Sairam Sundaresan, Bijan Forutanpour, Pravin Kumar Ramadas
  • Patent number: 10135642
    Abstract: A receiver includes a decision circuit, a circuit to adjust an input signal of the decision circuit, a correction circuit and a control circuit. The decision circuit makes a data decision based on an input signal of the decision circuit. The circuit to adjust the input signal of the decision circuit adjusts the input signal of the decision circuit based on an input correction signal. The correction circuit combines a plurality of signals corresponding to different input correction parameters into a preliminary input correction signal. An input of the correction circuit is coupled to an output of the decision circuit. The control circuit maps the preliminary input correction signal into the input correction signal using a nonlinear code mapping.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: November 20, 2018
    Assignee: RAMBUS INC.
    Inventors: Marko Aleksić, Pravin Kumar Venkatesan, Simon Li, Nikhil Vaidya
  • Publication number: 20180321360
    Abstract: Methods and systems for performing three dimensional LIDAR measurements with an integrated LIDAR measurement device are described herein. In one aspect, a return signal receiver generates a pulse trigger signal that triggers the generation of a pulse of illumination light and data acquisition of a return signal, and also triggers the time of flight calculation by time to digital conversion. In addition, the return signal receiver also estimates the width and peak amplitude of each return pulse, and samples each return pulse waveform individually over a sampling window that includes the peak amplitude of each return pulse waveform. In a further aspect, the time of flight associated with each return pulse is estimated based on a coarse timing estimate and a fine timing estimate. In another aspect, the time of flight is measured from the measured pulse due to internal optical crosstalk and a valid return pulse.
    Type: Application
    Filed: May 8, 2018
    Publication date: November 8, 2018
    Inventors: David S. Hall, Raymond Liou, Oren Milgrome, Anand Gopalan, Pravin Kumar Venkatesan
  • Publication number: 20180314604
    Abstract: Contents of a plurality of backups that share a common characteristic are profiled. A portion of the plurality of backups is selected as a base backup reference data to be distributed. A first copy of the base backup reference data is stored at a storage of a backup server. A second copy of the base backup reference data is provided for storage at a storage of a client that shares the common characteristic. The client is located remotely from the backup server.
    Type: Application
    Filed: April 25, 2018
    Publication date: November 1, 2018
    Inventors: Balaji Panchanathan, Arun Sambamoorthy, Satchidananda Patra, Pravin Kumar Ashok Kumar
  • Patent number: 10089256
    Abstract: A transmitter is coupled to a command and address (CA) bus. The transmitter is configurable with dual-mode support to send commands over the CA bus in a first swing mode and a second swing mode. The transmitter is configurable to send a first command over the CA bus via the pins while in the first swing mode, initiate calibration of the master device to send commands over the CA bus in the second swing mode, and to send a second command over the CA bus via the pins while in the second swing mode.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: October 2, 2018
    Assignee: Rambus Inc.
    Inventors: Pravin Kumar Venkatesan, Liji Gopalakrishnan, Kashinath Prabhu, Makarand Shirasgaonkar
  • Patent number: 10077434
    Abstract: The present disclosure relates to developing cell lines where specific biological pathways are modified, particularly by modifications in the enzymes of the cell. The present disclosure develops protein expression systems wherein specific modification of glycan chain of the protein is achieved, which produces non-fucosylated proteins, including non-fucosylated antibodies. The non-fucosylated proteins are used in developing therapeutic monoclonal antibodies and biomarkers, and in diagnosis and prognosis of various diseases. The present disclosure employs the Transcription Activator like Effector Nuclease (TALEN) technology for inactivating fucosylation in a cell.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: September 18, 2018
    Assignee: Zumutor Biologics Inc.
    Inventors: Sohang Chatterjee, Kavitha Iyer Rodrigues, Maloy Ghosh, Sunit Maity, Rajeshwari Pendse, Divya Unnikrishnan, Yogendra Manjunath B. M., Jahnabi Arika, Sathyabalan M., Pavithra M., Bhargav Prasad, Veeresha K., Prabhat Kumar Pathak, Sanghamitra Bhattacharjee, Pravin Kumar D., Vivek Halan, Sankaranarayanan Srinivasan, Anuradha Hora, Bairavabalakumar N., Karthika Nair, Aswini Thanigaivel, Amol Maliwalave, Bharath R. Shenoy, Anisha Kurup