公开(公告)号：US11211700B1

公开(公告)日：2021-12-28

申请号：US16298723

申请日：2019-03-11

Applicant: Amazon Technologies, Inc.

Inventor： Akshay Mohan ,  Yue Zheng ,  Deepak Pai Hosadurga ,  Jagan Vaidyanathan Rajagopalan

IPC: G05B19/04 ,  H01Q3/08 ,  H01Q1/32 ,  B25J13/00 ,  B25J9/16

Abstract: Technologies for dynamic noise cancelation using noise patterns are described. One device includes a moveable assembly having first and second degrees of freedom. A component within the base assembly radiates electromagnetic energy in a radiation pattern as a noise source when operating and an antenna, coupled to a receiver, is disposed on the support member. The processing device, using noise profile data about the radiation pattern of the noise source, determines that the component is operating and a current angle between the component and the antenna. The processing device determines a difference value between the current angle and the first angle and causes the moveable assembly to move at least one of the antenna or the base assembly according to the difference value.

公开(公告)号：US10249991B1

公开(公告)日：2019-04-02

申请号：US15638111

申请日：2017-06-29

Applicant: Amazon Technologies, Inc.

Inventor： Akshay Mohan ,  Jagan Vaidyanathan Rajagopalan ,  Deepak Pai Hosadurga

IPC: H01R13/648 ,  H01R13/6591 ,  H01R13/6477 ,  H01R13/04 ,  H01R13/46 ,  H01R13/40 ,  H01R12/52 ,  H01R13/6461 ,  H01R24/00 ,  H05K1/02

Abstract: High-speed data connectors having a variety of different implementations to address unwanted electromagnetic radiation and interference are described. In some instances, resonant unit structures are added within the existing connector cavity that absorb and dampen unwanted electromagnetic radiation. In other instances, resonant unit structures are added to the exterior of the connector to reduce and eliminate surface currents that can occur on the solid metal shield of the connector. In these and other instances, the resonant unit structure can be formed from a stacked structure having a resonant structure arranged in close proximity to some of the connector pins to absorb unwanted radiation from those pins. The absorbed energy is transferred to ground through other components in the stack. In still other instances, various different materials are provided to replace the conventional plastic material that is used to keep the connector pins in place and in alignment. The different materials can absorb unwanted electromagnetic radiation, and can be selected to address particular frequency ranges.

公开(公告)号：US11134298B2

公开(公告)日：2021-09-28

申请号：US15986503

申请日：2018-05-22

Applicant: Amazon Technologies, Inc.

Inventor： Jagan Vaidyanathan Rajagopalan ,  Ming-Wei Liu ,  Peruvemba Ranganath Sai Ananthanarayanan ,  In Chul Hyun ,  Mohammed Ziaul Azad ,  Deepak Pai Hosadurga ,  Sudheep Thota

IPC: H01Q1/38 ,  H01Q21/24 ,  H01Q9/04 ,  H04N21/426 ,  H04N21/414

Abstract: A device includes a substrate and a video processor on the substrate. A first patch antenna is mounted to the substrate and configured to transmit and receive radio frequency signals in a frequency range. The first patch antenna is closer to a first end of the substrate than a second end of the substrate. A second patch antenna is mounted to the substrate and is configured to transmit and receive radio frequency signals in the frequency range. The second patch antenna is closer to the first end of the substrate than the second end of the substrate. The substrate includes a ground isolation region between at least one of the first patch antenna and the second patch antenna and the video processor. A media connector is on the substrate and electrically connected to the video processor.

公开(公告)号：US11358845B1

公开(公告)日：2022-06-14

申请号：US16355397

申请日：2019-03-15

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Akshay Mohan ,  Jagan Vaidyanathan Rajagopalan ,  Yue Zheng ,  Deepak Pai Hosadurga

IPC: H04B1/10 ,  B66F9/08 ,  H04B1/04 ,  H01Q1/10 ,  H01Q13/20 ,  H04B3/32

Abstract: A device such as an autonomous mobile device may include an extensible mast or other structure that changes length during operation. A cable between electronics at the ends of the structure includes a data line for signals and a power line for electrical power. A deployed length of the cable is determined and used to determine the phase of an antinoise signal that is radiated using the power line. The antinoise signal destructively interferes with at least a portion of the radiated noise from the data line, reducing the overall amplitude of the radiated noise. The deployed length may also be used to adjust other parameters, such as equalizer settings for one or more of a transmitter or receiver that is connected to the data line.

公开(公告)号：US11140353B2

公开(公告)日：2021-10-05

申请号：US16255418

申请日：2019-01-23

Applicant: Amazon Technologies, Inc.

Inventor： Mohammed Ziaul Azad ,  In Chul Hyun ,  Chen Chen ,  Amit Gaikwad ,  Jagan Vaidyanathan Rajagopalan ,  Deepak Pai Hosadurga

IPC: H01Q9/04 ,  H04N5/38 ,  H04N21/4363 ,  H01Q23/00

Abstract: A streaming media player includes a printed circuit board, a video processor, a wireless communications processor, and a patch antenna. The patch antenna includes dielectric material, a conductive patch, and a first antenna feed in a first position with respect to the conductive patch. The patch antenna includes a second antenna feed in a second position with respect to the conductive patch. The first position is orthogonal to the second position. In an embodiment, the second position is rotationally offset from the first position by 90 degrees around an axis through a center of the conductive patch. The streaming media player includes a connector coupled to the video processor and configured to removably couple to a connection port on a display device.