Patents by Inventor Shwetabh Verma

Shwetabh Verma 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: 11890232
    Abstract: Method for controlling an eye surgical laser of a treatment device for the separation of a volume body with a predefined posterior interface and a predefined anterior interface from a human or animal cornea. The method includes controlling the laser by means of a control device of the treatment device such that it emits pulsed laser pulses in a shot sequence in a predefined pattern into the cornea. The interfaces of the volume body are defined by the predefined pattern and are generated by means of an interaction of the individual laser pulses with the cornea by the generation of a plurality of cavitation bubbles by photodisruption along at least one cavitation bubble path. At least a partial area of an outer cavitation bubble path of the volume body is generated with a higher cavitation bubble density than an inner cavitation bubble path.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: February 6, 2024
    Assignee: SCHWIND EYE-TECH-SOLUTIONS GMBH
    Inventors: Samuel Arba Mosquera, Shwetabh Verma, Nico Triefenbach, Mario Shraiki
  • Patent number: 11819459
    Abstract: A method for providing control data for an eye surgical laser of a treatment apparatus for removing tissue is disclosed. The method includes utilizing a control device for determining a corneal geometry and an ocular wavefront of a human or animal eye from predetermined examination data. A corneal wavefront is then determined from the corneal geometry using a physical model, and an internal wavefront is calculated from a difference between the ocular wavefront and the corneal wavefront. A wavefront to be achieved is calculated from a difference of a preset target wavefront and the calculated internal wavefront. A target corneal geometry is determined from the wavefront to be achieved by the physical model, and a tissue geometry to be removed is calculated from a difference of the corneal geometry and the target corneal geometry, and control data for controlling the eye surgical laser is provided.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: November 21, 2023
    Assignee: SCHWIND EYE-TECH-SOLUTIONS GMBH
    Inventors: Samuel Arba Mosquera, Shwetabh Verma
  • Publication number: 20230263664
    Abstract: The invention relates to a treatment apparatus for an eye treatment, at least comprising: at least one laser beam source configured for emission of laser pulses, at least one beam exit device, which is configured to pass the respective laser pulses with a predetermined laser pulse cross-sectional profile to respective impingement positions in a treatment surface of a preset treatment volume of an eye to be treated, a control device, which is configured to ascertain coordinates of the respective impingement positions in the treatment surface according to at least two predetermined coordinate ascertaining methods for the preset treatment volume and the predetermined laser pulse cross-sectional profile.
    Type: Application
    Filed: February 14, 2023
    Publication date: August 24, 2023
    Inventors: Samuel ARBA MOSQUERA, Shwetabh VERMA
  • Publication number: 20230129891
    Abstract: The invention relates to a treatment apparatus (1) for an eye treatment, at least comprising: at least one laser beam source (3) configured for emission of a laser beam (2), at least one beam exit device (9), which is configured to direct the laser beam (2) to an eye (11) to be treated, at least one transfer optics (6), which is configured to feed the laser beam (2) along a respective optical path (21) to the at least one beam exit device (9), and a control device (14), which is configured to retrieve a predetermined eye treatment configuration (15) from a storage device (13), on which multiple eye treatment configurations (12) are stored, to adjust the at least one laser beam source (3) for generating the laser beam (2) of a pulse duration (4) to be adjusted according to the predetermined eye treatment configuration (15) of the eye treatment configurations (12), and to adjust the at least one transfer optics (6) for providing a predetermined numerical aperture (10) of the transfer optics (6) according to the
    Type: Application
    Filed: October 20, 2022
    Publication date: April 27, 2023
    Inventors: Samuel ARBA MOSQUERA, Luise KRÜGER, Pascal NAUBEREIT, Shwetabh VERMA, Thomas WENDLER
  • Patent number: 11590026
    Abstract: A method of controlling an eye surgical laser is disclosed for the separation of a volume body with predefined posterior and anterior interfaces from a human/animal cornea. The method including controlling the laser with a control device, the laser being configured to emit pulsed laser pulses in a predefined pattern into the cornea. The posterior and anterior interfaces of the volume body are defined by the predefined pattern and are generated by an interaction of the individual laser pulses with the cornea through photodisruption. The control device controls the laser beam such that both interfaces are generated via a continuous, uninterrupted sequence of laser pulses. A treatment device is disclosed with at least one eye surgical laser for the separation of a predefined corneal volume with predefined interfaces of a human/animal eye by photodisruption and with at least one control device for the laser(s).
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: February 28, 2023
    Assignee: SCHWIND EYE-TECH-SOLUTIONS GMBH
    Inventors: Samuel Arba-Mosquera, Shwetabh Verma, Nico Triefenbach, Mario Shraiki
  • Publication number: 20220409434
    Abstract: The invention relates to a method for controlling an eye surgical laser (18) for removing a volume body (12) from a cornea (44) with an anterior interface (16) of the cornea (44) and a posterior interface (14) of the cornea (44), comprising the steps of: presetting the posterior actual interface (14); determining a first imaging point (48) of the cornea (44); determining an anterior target interface (46) depending on the posterior actual interface (14) and the first imaging point (48) based on a mathematical model (M); determining a shape of the volume body (12) to be generated by presetting the determined anterior target interface (46); and generating control data for generating the volume body (12) such that the anterior actual interface (16) corresponds to the determined anterior target interface (46) after removing the volume body (12) from the cornea (44). Further, the invention relates to a treatment apparatus (10), to a computer program product as well as to a computer-readable medium.
    Type: Application
    Filed: June 16, 2022
    Publication date: December 29, 2022
    Inventors: Samuel ARBA MOSQUERA, Mario SHRAIKI, Shwetabh VERMA
  • Publication number: 20220218525
    Abstract: A method is disclosed for determining a position of a target point of a human or animal eye during a medical treatment of the eye to allow an improved target accuracy for triggering a laser pulse to a respective target point. The method includes capturing a respective picture of the eye at a first point of time and a later second point of time, determining movement information with respect to a movement of the eye and/or of the target point based on the respective pictures and determining prediction data. The prediction data including a prediction for a future position and/or orientation of the target point at a later point of time, based on the movement information, wherein the later point of time is temporally spaced from the second point of time by a period of time, the duration of which is derived from a latency of an image evaluation.
    Type: Application
    Filed: January 12, 2022
    Publication date: July 14, 2022
    Inventors: Samuel ARBA MOSQUERA, Shwetabh VERMA
  • Publication number: 20220218524
    Abstract: A method for providing control data of an eye surgical laser of a treatment apparatus is disclosed for a treatment on a human or animal eye. The method optimizes a target conflict between low stress for a patient and efficacy of a laser. The method includes, as performed by a control device, determining a patient-specific parameter set, which relates to at least one physiological characteristic of the eye, determining at least one physical parameter for the eye surgical laser depending on the patient-specific parameter set, wherein the physical parameter relates to a physical characteristic of a laser beam of the laser, and providing control data for controlling the eye surgical laser, which includes the physical parameter.
    Type: Application
    Filed: December 27, 2021
    Publication date: July 14, 2022
    Inventors: Samuel ARBA MOSQUERA, Shwetabh VERMA
  • Publication number: 20220096273
    Abstract: The invention relates to a method for providing control data for an eye surgical laser (12) of a treatment apparatus (10) for removing tissue (14). A control device (18) ascertains (S10) a corneal geometry of a cornea (22) and an ocular wavefront (32) of a human or animal eye (16) from predetermined examination data.
    Type: Application
    Filed: September 28, 2021
    Publication date: March 31, 2022
    Inventors: Samuel Arba MOSQUERA, Shwetabh VERMA
  • Publication number: 20210346198
    Abstract: Method for controlling an eye surgical laser (18) of a treatment device (10) for the separation of a volume body (12) with a predefined posterior interface (14) and a predefined anterior interface (16) from a human or animal cornea, comprising controlling the laser (18) by means of a control device (20) of the treatment device (10) such that it emits pulsed laser pulses in a shot sequence in a predefined pattern into the cornea, wherein the interfaces (14, 16) of the volume body (12) to be separated are defined by the predefined pattern and the interfaces (14, 16) are generated by means of an interaction of the individual laser pulses with the cornea by the generation of a plurality of cavitation bubbles generated by photodisruption, wherein the plurality of cavitation bubbles is generated along at least one cavitation bubble path, wherein at least a partial area (42) of an outer cavitation bubble path of an outer edge area (50), as radially viewed, of the volume body (12) to be separated is generated with a
    Type: Application
    Filed: April 30, 2021
    Publication date: November 11, 2021
    Inventors: Samuel ARBA MOSQUERA, Shwetabh Verma, Nico Triefenbach, Mario Shraiki
  • Patent number: 11137858
    Abstract: Location-based swing compensation for touch sensor panels can improve touch sensing performance. Due to differences in impedance characteristics of touch nodes at different locations in a touch sensor panel (due to differences in routing to touch nodes and due to differences in impedance with respect to ground (loading effects) of touch nodes), touch nodes can have non-uniform bandwidth characteristics which can manifest as non-uniform signal and signal-to-noise ratio (SNR) across the touch sensor panel. Additionally, the non-uniform signal can reduce the effectiveness of bootstrapping. Swing compensated stimulation signals can be applied to various touch nodes based on location and/or impedance characteristics of the various touch nodes. For example, the stimulation voltage can be increased for touch nodes with longer and/or thinner routing traces so that the signal at the touch node can be uniform with other touch nodes whose routing may be shorter and/or thicker.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: October 5, 2021
    Assignee: Apple Inc.
    Inventors: Albert Lin, Shwetabh Verma, Sumant Ranganathan
  • Patent number: 10365773
    Abstract: A touch controller for flexible scanning operation is disclosed. The touch controller can include circuitry configured to perform coarse detection scans, select a fine scan type based on results from the coarse detection scans, and perform a fine scan corresponding to the selected fine scan type. A fine mutual capacitance scan can be performed when conditions corresponding to a poorly grounded or ungrounded object or user are detected based on the coarse detection scans. A fine fully-bootstrapped self-capacitance scan can be performed when conditions corresponding to a well-grounded object or user are detected based on the coarse detection scans. A touch processor can be configured to sense touch events from the fine scan.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: July 30, 2019
    Assignee: Apple Inc.
    Inventors: Marduke Yousefpor, Shwetabh Verma
  • Patent number: 10305708
    Abstract: Methods, systems, and apparatuses are described for improving the signal integrity of a differential pair of signals by mitigating a non-balanced channel deficiency. For example, signal integrity may be improved by independently shaping and/or independently controlling the slopes (e.g., the rising edge and/or falling edge) of each signal of a differential pair of signals to counteract the effects caused by non-balanced deficiencies to provide a balanced differential pair of signals (i.e., signals having symmetrical impedances, loads, etc.).
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: May 28, 2019
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Shwetabh Verma, Bhaskar Banerjee, Amiad Dvir, Assaf Naor
  • Publication number: 20190095006
    Abstract: Power consumption of touch sensing operations for touch sensitive devices can be reduced by implementing a coarse scan (e.g., banked common mode scan) to coarsely detect the presence or absence of an object touching or proximate to a touch sensor panel and the results of the coarse scan can be used to dynamically adjust the operation of the touch sensitive device to perform or not perform a fine scan (e.g., targeted active mode scan). In some examples, the results of the coarse scan can be used to program a touch controller for the next touch sensing frame to idle when no touch event is detected or to perform a fine scan when one or more touch events are detected. In some examples, the results of the coarse scan can be used to abort a scheduled fine scan during the current touch sensing frame when no touch event is detected.
    Type: Application
    Filed: August 27, 2018
    Publication date: March 28, 2019
    Inventors: Shahrooz SHAHPARNIA, Christopher Tenzin MULLENS, Martin Paul GRUNTHANER, Adam GEBOFF, Vivek PANT, Marduke YOUSEFPOR, Christoph H. KRAH, Shwetabh VERMA, Sumant RANGANATHAN
  • Publication number: 20180331862
    Abstract: Methods, systems, and apparatuses are described for improving the signal integrity of a differential pair of signals by mitigating a non-balanced channel deficiency. For example, signal integrity may be improved by independently shaping and/or independently controlling the slopes (e.g., the rising edge and/or falling edge) of each signal of a differential pair of signals to counteract the effects caused by non-balanced deficiencies to provide a balanced differential pair of signals (i.e., signals having symmetrical impedances, loads, etc.).
    Type: Application
    Filed: July 20, 2018
    Publication date: November 15, 2018
    Inventors: Shwetabh VERMA, Bhaskar Banerjee, Amiad DVIR, Assaf NAOR
  • Patent number: 10067618
    Abstract: Power consumption of touch sensing operations for touch sensitive devices can be reduced by implementing one or more coarse scans to coarsely detect the presence or absence of an object touching or proximate to a touch sensor panel and dynamically adjusting the operation of the touch sensitive device to perform or not perform one or more steps of a fine scan based on the results of the one or more coarse scans. In some examples, the fine scan can be scheduled, and one or more steps of the fine scan can be aborted when no touch is detected at touch sensors scanned during the one or more steps. Sense channels unused due to the aborted fine scan steps can be powered down during aborted fine scan steps.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: September 4, 2018
    Assignee: Apple Inc.
    Inventors: Shwetabh Verma, Shahrooz Shahparnia, Sumant Ranganathan, Vivek Pant
  • Patent number: 10033556
    Abstract: Methods, systems, and apparatuses are described for improving the signal integrity of a differential pair of signals by mitigating a non-balanced channel deficiency. For example, signal integrity may be improved by independently shaping and/or independently controlling the slopes (e.g., the rising edge and/or falling edge) of each signal of a differential pair of signals to counteract the effects caused by non-balanced deficiencies to provide a balanced differential pair of signals (i.e., signals having symmetrical impedances, loads, etc.).
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: July 24, 2018
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Shwetabh Verma, Bhaskar Banerjee, Amiad Dvir, Assaf Naor
  • Publication number: 20180088735
    Abstract: Location-based swing compensation for touch sensor panels can improve touch sensing performance. Due to differences in impedance characteristics of touch nodes at different locations in a touch sensor panel (due to differences in routing to touch nodes and due to differences in impedance with respect to ground (loading effects) of touch nodes), touch nodes can have non-uniform bandwidth characteristics which can manifest as non-uniform signal and signal-to-noise ratio (SNR) across the touch sensor panel. Additionally, the non-uniform signal can reduce the effectiveness of bootstrapping. Swing compensated stimulation signals can be applied to various touch nodes based on location and/or impedance characteristics of the various touch nodes. For example, the stimulation voltage can be increased for touch nodes with longer and/or thinner routing traces so that the signal at the touch node can be uniform with other touch nodes whose routing may be shorter and/or thicker.
    Type: Application
    Filed: September 7, 2017
    Publication date: March 29, 2018
    Inventors: Albert LIN, Shwetabh VERMA, Sumant RANGANATHAN
  • Publication number: 20170104615
    Abstract: Methods, systems, and apparatuses are described for improving the signal integrity of a differential pair of signals by mitigating a non-balanced channel deficiency. For example, signal integrity may be improved by independently shaping and/or independently controlling the slopes (e.g., the rising edge and/or falling edge) of each signal of a differential pair of signals to counteract the effects caused by non-balanced deficiencies to provide a balanced differential pair of signals (i.e., signals having symmetrical impedances, loads, etc.).
    Type: Application
    Filed: October 3, 2016
    Publication date: April 13, 2017
    Inventors: Shwetabh Verma, Bhaskar Banerjee, Amiad Dvir, Assaf Naor
  • Publication number: 20170090619
    Abstract: A touch controller for flexible scanning operation is disclosed. The touch controller can include circuitry configured to perform coarse detection scans, select a fine scan type based on results from the coarse detection scans, and perform a fine scan corresponding to the selected fine scan type. A fine mutual capacitance scan can be performed when conditions corresponding to a poorly grounded or ungrounded object or user are detected based on the coarse detection scans. A fine fully-bootstrapped self-capacitance scan can be performed when conditions corresponding to a well-grounded object or user are detected based on the coarse detection scans. A touch processor can be configured to sense touch events from the fine scan.
    Type: Application
    Filed: March 31, 2016
    Publication date: March 30, 2017
    Inventors: Marduke YOUSEFPOR, Shwetabh VERMA