Patents by Inventor Abhishek Kumar

Abhishek 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).

  • Publication number: 20190207782
    Abstract: Example techniques involve control of playback queues. A computing device may display a media controller that includes a queue area. When representations of one or more audio tracks are moved into a particular location within the queue area, they are added to the queue. The audio tracks are added to the beginning of the queue, end of the queue, or at a specific position with the queue based on the particular location within the queue area.
    Type: Application
    Filed: March 7, 2019
    Publication date: July 4, 2019
    Inventors: Robert Reimann, Abhishek Kumar, Paul Bates
  • Patent number: 10338881
    Abstract: A processor and memory comprising instructions stored therein executable by the processor to display a first media item available for playback, wherein the first media item is associated at least with a preview option, a playback option, and a queue option. A first input associated with the first media item is received. The first input is determined to correspond only to the preview option. Responsive to determining that the first input corresponds only to the preview option, causing at least a portion of the first media item to be played.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: July 2, 2019
    Assignee: Sonos, Inc.
    Inventors: Paul Bates, Abhishek Kumar, Jonathan Lang
  • Patent number: 10341147
    Abstract: A high performance equalization method is disclosed for achieving low deterministic jitter across Process, Voltage and Temperature (PVT) for various channel lengths and data rates. The method includes receiving input signal at front end of a receiver upon passing through a channel, generating with an eye-opening monitor circuit a control code based on channel conditions, and equalizing with a continuous-time linear equalization equalizer (CTLE) circuit the input signal based on the control code such that the eye-opening monitor circuit and the CTLE circuit are biased based on their corresponding replica circuits, and the control code is generated in a feedforward configuration.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: July 2, 2019
    Assignee: MegaChips Corporation
    Inventors: Abhishek Kumar Khare, Raghavendra R. G, Anil Chawda, Shubham Srivastava
  • Publication number: 20190188619
    Abstract: A status system suitable for monitoring and maintaining status for shared resources is provided. The status system obtains status for a shared resource from a plurality of users of the shared resource, the status indicating an observed status of the shared resource received via a device of each of the plurality of users. Based on the obtained status from the plurality of users, the status system determines a current status for the shared resource. A central database in a central data storage is updated with the current status for the shared resource. In response to a request for the status of the shared resource, the status system retrieves the current status of the shared resource and causes display of the current status in a user interface.
    Type: Application
    Filed: December 15, 2017
    Publication date: June 20, 2019
    Inventors: Abhishek Kumar Chaturvedi, Hongchao Guan, Philipp Cannons
  • Publication number: 20190181845
    Abstract: A high performance phase-locked loop, the device includes a phase frequency detector, a charge pump, a loop filter, a first oscillator having inverters, configured to generate a first current, a second oscillator having a scaled version of the inverters of the first oscillator, a digital to analog converter, configured to generate a second current by multiplying the first current and a frequency code, a voltage to current converter, configured to generate a third current by converting voltage output of the loop filter to current, wherein input current to the second oscillator is sum of the second current and the third current.
    Type: Application
    Filed: December 13, 2017
    Publication date: June 13, 2019
    Applicant: MegaChips Corporation
    Inventor: Abhishek Kumar Khare
  • Publication number: 20190179128
    Abstract: Embodiments related to systems and methods for instant structured microscopy where total internal reflection fluorescence techniques are used to improve optical sectioning and signal-to-noise ratio of structured illumination microscopy are disclosed.
    Type: Application
    Filed: August 23, 2017
    Publication date: June 13, 2019
    Inventors: Hari Shroff, Justin Taraska, John Giannini, Yicong Wu, Abhishek Kumar, Min Guo
  • Publication number: 20190162145
    Abstract: A fuel injector assembly for a vehicle includes an engine head, a fuel injector, and a preloading insert. The engine head defines a bore wherein the bore includes a head region proximate to the corresponding combustion chamber. The pre-loading insert may be disposed within the bore at the head region. The pre-loading insert may be configured to apply a tensile hoop stress to the head region of the bore causing plastic deformation to the head region while also supporting the fuel injector within the bore. The fuel injector may be configured to dispense fuel into a combustion chamber.
    Type: Application
    Filed: November 28, 2017
    Publication date: May 30, 2019
    Inventors: Abhishek Kumar Sahu, Asok K Sethy
  • Patent number: 10305454
    Abstract: A frequency stable oscillator with compensation circuit, the device includes a ring oscillator circuit having S number of stages, a current generator circuit configured to generate a first current, a replica circuit having an inverter with output connected to input, configured to generate a first voltage upon dumping a second current onto the replica circuit, a first operational transconductance amplifier (OTA) with an input as the first voltage, configured to generate a third current and a current mirror circuit configured to generate a fourth current by adding the first current and the third current in a particular ratio M:N, wherein the inverter of the replica circuit is equivalent to a single stage of the ring oscillator circuit and wherein the fourth current is the total current for the ring oscillator circuit and is as close as possible to S times the second current.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: May 28, 2019
    Assignee: MegaChips Corporation
    Inventor: Abhishek Kumar Khare
  • Patent number: 10288871
    Abstract: A display device includes a first support plate and a pixel region over the first support plate. A thin film transistor (TFT) structure is disposed over the first support plate and associated with the pixel region. The TFT structure includes a first metal layer over the first support plate. The first metal layer includes a gate. A silicon layer is disposed over the gate. A second metal layer is disposed over the silicon layer. The second metal layer includes a source and a drain covering a first portion of the silicon layer. A light-absorbing material layer is disposed over at least a second portion of the silicon layer.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: May 14, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Abhishek Kumar, Toru Sakai
  • Publication number: 20190141141
    Abstract: The present disclosure discloses a method and network device for dynamic detection of inactive virtual private network clients. Specifically, a network device receives periodic messages from a first device at a first interval, and determines a timeout value for the first device based at least on the first interval, at which the periodic messages are received from the first device. Subsequent to determining the timeout value, the network device detects that a message has not been received from the first device for a period of time corresponding to the timeout value for the first device. The network device then terminates at least one connection with the first device responsive to determining that no message has been received from the first device for the period of time corresponding to the timeout value for the first device.
    Type: Application
    Filed: January 5, 2019
    Publication date: May 9, 2019
    Inventors: Raghunandan Prabhakar, Abhishek Kumar, Sridhar Pasupula Chandrasekaran
  • Patent number: 10281731
    Abstract: A 2D/3D switchable liquid crystal lens device includes: a polarization-dependent lens array, configured to provide a focusing effect for impinging light having a first plane of polarization of the impinging light and to provide no focusing effect for impinging light have a second plane of polarization orthogonal to the first plane of polarization; a switchable polarization rotating stage, comprising bi-stable liquid crystals, wherein the switchable polarization rotating stage is configured to output light having the first plane of polarization to the polarization-dependent lens array while the bi-stable liquid crystals are in a first state, and to output light having the second plane of polarization to the polarization-dependent lens array while the bi-stable liquid crystals are in a second state; and a driving system, configured to switch the bi-stable liquid crystals of the switchable polarization rotating stage between the first state and the second state.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: May 7, 2019
    Assignee: THE HONG KONG UNIVERSITY OF SCIENCE & TECHNOLOGY
    Inventors: Abhishek Kumar Srivastava, Vladimir Grigorievich Chigrinov, Hoi-Sing Kwok
  • Patent number: 10281713
    Abstract: A display device and a method for making the same are provided. In the method, source and drain contacts are patterned on a buffer layer. An IGZO layer is depositing over at least a portion of the source contact and a portion of the drain contact. A gate structure is formed over the IGZO layer. A silicon nitride layer is deposited over the gate structure and the IGZO layer to form a first doped region in the IGZO layer and a second doped region in the IGZO layer. A pixel electrode is formed over the buffer layer. A plurality of pixel walls are formed over the buffer layer, the plurality of pixel walls being associated with an electrowetting pixel and the pixel electrode being configured to a apply voltage within the electrowetting pixel. At least one of the source contact and the drain contact is connected to the pixel electrode.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: May 7, 2019
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: Abhishek Kumar, Toru Sakai
  • Publication number: 20190129252
    Abstract: A photoaligned quantum rod enhancement film (QREF) includes: a substrate (802, 805); a photoalignment layer deposited on the substrate (802, 805); and a polymer layer deposited on the photoalignment layer, the polymer layer comprises a plurality of quantum rods, the plurality of quantum rods are configured to emit one or more wavelengths of light in response to pumping light, and are aligned to an alignment axis based on the photoalignment layer.
    Type: Application
    Filed: May 10, 2017
    Publication date: May 2, 2019
    Applicant: The Hong Kong University of Science and Technology
    Inventors: Abhishek Kumar SRIVASTAVA, Wanlong ZHANG, Vladimir Grigorievich CHIGRINOV, Hoi Sing KWOK
  • Patent number: 10270612
    Abstract: Example techniques involve control of playback queues of a zone-based media playback system. Each zone of the media playback system may play back audio tracks from a respective queue. A control device may display a playback controller that includes multiple control interfaces to control audio playback by the one or more playback zones. When a first playback zone is being controlled, the playback controller may instruct one or more first playback devices of a first zone to play back audio tracks of a queue of the first playback zone. Example implementations may facilitate adding audio tracks to the queue.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: April 23, 2019
    Assignee: Sonos, Inc.
    Inventors: Robert Reimann, Abhishek Kumar, Paul Bates
  • Patent number: 10261310
    Abstract: A display device includes a first support plate and a pixel region over the first support plate. A thin film transistor (TFT) structure is disposed over the first support plate and associated with the pixel region. The TFT structure includes a first metal layer over the first support plate. The first metal layer includes a gate. A silicon layer is disposed over the gate. A second metal layer is disposed over the silicon layer. The second metal layer includes a source and a drain covering a first portion of the silicon layer. An amorphous silicon layer is disposed over at least a portion of the second metal layer and a second portion of the silicon layer.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: April 16, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Toru Sakai, Abhishek Kumar
  • Publication number: 20190104411
    Abstract: A Wi-Fi network includes one or more access point devices configured to connect to one or more devices; wherein the Wi-Fi network is designated by a Service Set Identifier (SSID); wherein each Wi-Fi client device accesses the Wi-Fi network using the SSID and a key of a plurality of keys each being a password or certificate for the Wi-Fi network; and wherein each of the plurality of keys designates an access zone of a plurality of access zones each defining rules for network and/or device access such that the one or more access point devices provide selective access based on which of the plurality of keys is used for each of the one or more devices.
    Type: Application
    Filed: November 29, 2017
    Publication date: April 4, 2019
    Inventors: Adam HOTCHKISS, Aman SINGLA, Abhishek KUMAR, Nate AMAROSE, Paul WHITE, Michal KAZIOR, Mladen BARJAKTAREVIC, Sameer VAIDYA
  • Patent number: 10248724
    Abstract: A first connection state may be entered on a computing device. While the computing device is in the first connection state, actions taken on a playlist on the computing device may be applied to the playlist and not applied to a playback queue associated with a zone. An input may be received via the computing device, indicating a selection of the zone. In response to receiving the input, a second connection state may be entered. Entering the second connection state may comprise establishing a connected state between the computing device and the one or more playback devices. While the connected state is established, one or more actions taken on the playlist on the computing device may be applied to the playlist and transmitted, in a message to the zone over a network. The one or more actions may be one or more corresponding actions applied to the playback queue.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: April 2, 2019
    Assignee: Sonos, Inc.
    Inventors: Abhishek Kumar, Andrew Schulert, Robert Andrew Lambourne, Arthur L. Coburn, IV
  • Patent number: 10247930
    Abstract: A resolution enhancement technique for a line scanning confocal microscopy system that generates vertical and horizontal line scanning patterns onto a sample is disclosed. The line scanning confocal microscopy system is capable of producing line scanning patterns through the use of two alternative pathways that generate either the vertical line scanning pattern or horizontal line scanning pattern.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: April 2, 2019
    Assignee: The United States of America, as Represented by the Secretary, Department of Health and Human Services
    Inventors: Hari Shroff, Andrew York, John Giannini, Abhishek Kumar
  • Patent number: 10241776
    Abstract: Changing user settings across applications and/or across devices via a dialog within one application is provided herein. The systems and methods discussed herein provide for an improved user experience and fewer computing resources to be expended when changing user settings by aggregating the changeable settings, allowing for their modification via a single dialog, and distributing settings changes to remote hosts, which in turn provide consistent settings across devices. The settings available to the user may be governed in association with the user's licenses to access programs and may be affected by domain level controls by an administrator.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: March 26, 2019
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Abhishek Kumar, Gargee Sharma, Subash Kumar Bhamidipati, Ananthakrishnan Ramanathan, Matthew Carlo Razza, Vidya Kotteri, Ying Zhe Chong, Cancan Shi, Bhanu Samyal
  • Patent number: 10231616
    Abstract: Systems and methods for sub-aperture correlation based wavefront measurement in a thick sample and correction as a post processing technique for interferometric imaging to achieve near diffraction limited resolution are described. Theory, simulation and experimental results are presented for the case of full field interference microscopy. The inventive technique can be applied to any coherent interferometric imaging technique and does not require knowledge of any system parameters. In one embodiment of the present application, a fast and simple way to correct for defocus aberration is described. A variety of applications for the method are presented.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: March 19, 2019
    Assignee: CARL ZEISS MEDITEC, INC.
    Inventors: Abhishek Kumar, Alexandre R. Tumlinson, Rainer Leitgeb