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    Rapid braking system for an autonomous mobile device
    1.
    发明授权
    Rapid braking system for an autonomous mobile device 有权

    公开(公告)号：US11858128B1

    公开(公告)日：2024-01-02

    申请号：US16022527

    申请日：2018-06-28

    Applicant: AMAZON TECHNOLOGIES, INC.

    Inventor： Benny Ng ,  Siddharth Gupta ,  Marcel Colman Eric Stieber ,  Rex L Allison ,  Christopher Wells Fitzhugh

    IPC: B25J9/00 ,  B25J9/16 ,  B25J11/00 ,  H02M1/08

    CPC classification number: B25J9/0009 ,  B25J9/1666 ,  B25J9/1694 ,  B25J11/008 ,  H02M1/08

    Abstract: A device that uses a motor may quickly and safely stop the motor using a rapid braking system. For example, the device may stop to avoid collision with an object, upon determining a failure of an internal component, upon receipt of a command, and so forth. Responsive to a signal to stop, the motor is disconnected from the battery. A braking circuit is activated that dissipates, in a controlled fashion, power produced by continuing motion of the motor. When the voltage produced by the motor's continuing motion drops below a threshold, a stop circuit shorts the terminals of the motor, causing the motor to resist further rotation. When the stop condition no longer applies the signal to stop is removed resulting in the motor being reconnected to the battery, the braking circuit being deactivated, the stop circuit opens the short between the terminals of the motor, and normal operation resumes.

    Compliance lifecycle management for cloud-based resources
    3.
    发明授权
    Compliance lifecycle management for cloud-based resources 有权

    公开(公告)号：US10949406B1

    公开(公告)日：2021-03-16

    申请号：US16364006

    申请日：2019-03-25

    Applicant: Amazon Technologies, Inc.

    Inventor： Angel Calvo ,  Boo Boon Khoo ,  Himanshu Sharma ,  Siddharth Gupta

    IPC: G06F16/215 ,  H04L12/24 ,  G06F21/55 ,  H04L29/06 ,  H04L29/08

    Abstract: Methods, systems, and computer-readable media for compliance lifecycle management for cloud-based resources are disclosed. A selection is received of a compliance pack from a plurality of compliance packs. The compliance pack comprises a plurality of rules associated with policy compliance. The compliance pack is selected from the plurality of compliance packs via a user interface. The selection is associated with one or more resources hosted in one or more provider networks. An evaluation is performed of compliance of the one or more resources with respect to the plurality of rules of the compliance pack. Data describing the evaluation is generated and displayed. The data comprises an aggregate compliance status for at least one of the one or more resources, and the aggregate compliance status represents an aggregate compliance with the plurality of rules.

    Global reset for an electrowetting display device
    4.
    发明授权
    Global reset for an electrowetting display device 有权

    公开(公告)号：US10345575B1

    公开(公告)日：2019-07-09

    申请号：US14553620

    申请日：2014-11-25

    Applicant: Amazon Technologies, Inc.

    Inventor： Jack Shih-Chieh Wei ,  Siddharth Gupta ,  Robert Waverly Zehner

    IPC: G02B26/00 ,  G09G3/34

    Abstract: An electrowetting display device comprises electrowetting pixels. Each of the electrowetting pixels includes a hydrophobic layer portion disposed on a first electrode, an electrolyte solution overlying the hydrophobic layer, and a thin film transistor (TFT) that is switched on to select each of the electrowetting pixels using active matrix addressing, wherein the TFT is in electrical contact with the first electrode. The electrowetting display further includes a second electrode in electrical contact with the electrowetting pixels, and a reset control circuit in electrical contact with the second electrode to provide a reset pulse in unison to the electrowetting pixels.

    Active braking system for an autonomous mobile device
    6.
    发明授权
    Active braking system for an autonomous mobile device 有权

    公开(公告)号：US11204609B1

    公开(公告)日：2021-12-21

    申请号：US16451848

    申请日：2019-06-25

    Applicant: AMAZON TECHNOLOGIES, INC.

    Inventor： Benny Ng ,  Siddharth Gupta ,  Bruce Robert Woodley

    IPC: G05D1/02 ,  G05D1/00 ,  H02P3/08 ,  H02P7/29 ,  H02P6/08 ,  H02P6/24

    Abstract: An autonomous mobile device (AMD) includes an active braking circuit able to quickly stop the movement of the AMD. For example, the device may stop to avoid an obstacle, upon determining a failure of an internal component, upon receipt of a command, and so forth. Responsive to a signal to stop, an active braking circuit uses sensor data from a driving motor moving with a first rotation to actively commutate that motor to an opposite rotation, bringing the AMD quickly to a stop. In some implementations, the active braking circuit may include an independent power source and motor drivers and operate as a backup to a primary braking system.

    COMPLIANCE LIFECYCLE MANAGEMENT FOR CLOUD-BASED RESOURCES
    7.
    发明申请
    COMPLIANCE LIFECYCLE MANAGEMENT FOR CLOUD-BASED RESOURCES 有权

    公开(公告)号：US20210271651A1

    公开(公告)日：2021-09-02

    申请号：US17200597

    申请日：2021-03-12

    Applicant: Amazon Technologies, Inc.

    Inventor： Angel Calvo ,  Boo Boon Khoo ,  Himanshu Sharma ,  Siddharth Gupta

    IPC: G06F16/215 ,  H04L12/24 ,  G06F21/55 ,  H04L29/06 ,  H04L29/08

    Abstract: Methods, systems, and computer-readable media for compliance lifecycle management for cloud-based resources are disclosed. A selection is received of a compliance pack from a plurality of compliance packs. The compliance pack comprises a plurality of rules associated with policy compliance. The compliance pack is selected from the plurality of compliance packs via a user interface. The selection is associated with one or more resources hosted in one or more provider networks. An evaluation is performed of compliance of the one or more resources with respect to the plurality of rules of the compliance pack. Data describing the evaluation is generated and displayed. The data comprises an aggregate compliance status for at least one of the one or more resources, and the aggregate compliance status represents an aggregate compliance with the plurality of rules.

    Borderless display with curved edges
    8.
    发明授权
    Borderless display with curved edges 有权

    公开(公告)号：US11009762B1

    公开(公告)日：2021-05-18

    申请号：US16370169

    申请日：2019-03-29

    Applicant: Amazon Technologies, Inc.

    Inventor： Weihsin Hou ,  Robert Arthur Sprague ,  Chin Siong Khor ,  Siddharth Gupta

    IPC: G02F1/167 ,  G02F1/1368 ,  G06F1/16 ,  H01L51/00 ,  G02F1/1333 ,  G02F1/133 ,  G02B1/14

    Abstract: An electronic device with a flexible display subassembly is provided. The display stack may use two layers of adhesives having different elastic properties to improve mechanical impact resistance, with a first adhesive layer made of a viscoelastic material and a second adhesive layer having a low modulus of elasticity. The display stack may also include a hot melt protective sheet (HMPS) covering the display subassembly. The HMPS may be wrapped around the two side edges of a rigid substrate to attach directly to the substrate, thereby aiding in the adhesion of the display stack to the substrate. The display stack may also includes a patterned back protective sheet in which the protective backing layer is removed along the curved portions of the display stack.

    Display stack for borderless electronic displays
    9.
    发明授权
    Display stack for borderless electronic displays 有权

    公开(公告)号：US10228604B1

    公开(公告)日：2019-03-12

    申请号：US14851731

    申请日：2015-09-11

    Applicant: Amazon Technologies, Inc.

    Inventor： Hany Mounir Ghali ,  Robert Arthur Sprague ,  Siddharth Gupta

    IPC: G02B26/00 ,  G02B26/08 ,  G02F1/29 ,  G02F1/167 ,  G02F1/1368 ,  G02F1/1345 ,  G02F1/1333

    Abstract: Systems, methods, and computer-readable media are disclosed for borderless display stacks for use with electronic devices. In one embodiment, a display stack may include a thin film transistor (TFT) layer comprising an active area, an electrophoretic layer coupled to the TFT backplane, and an electrode coupled to a perimeter portion of the electrophoretic layer. The electrode may extend beyond peripheral edges of the electrophoretic layer. A portion of the electrode may be positioned between the electrophoretic layer and the TFT backplane, and the electrode may surround the active area. The display stack may include a cover layer coupled to the electrophoretic layer.

    Thin border displays
    10.
    发明授权
    Thin border displays 有权

    公开(公告)号：US10185200B1

    公开(公告)日：2019-01-22

    申请号：US15191390

    申请日：2016-06-23

    Applicant: Amazon Technologies, Inc.

    Inventor： Robert Arthur Sprague ,  Angeles Marcia Almanza-Workman ,  Wilfrido Loor Canizares ,  Siddharth Gupta ,  Vikram Srinivas

    IPC: G02F1/167 ,  H01L27/12 ,  G02F1/1333 ,  G02B26/00

    Abstract: A thin border display for an electronic device may comprise an optical assembly that includes a support frame and an electrophoretic display (EPD) structure attached to the support frame in a manner that allows for the display of the electronic device to exhibit a “thin border” or “borderless” look at a periphery of the electronic device. A portion of the EPD structure may at least partly curve around a curved portion of the support frame, the curved portion of the support frame being near the periphery of the support frame. In some embodiments, the EPD structure includes a transparent protective substrate disposed on a rear surface of a flexible backplane substrate within the flat outer region where a driver chip is disposed on a front surface of the flexible backplane substrate. The transparent protective substrate protects the driver chip attachment from being damaged during manufacture.

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