公开(公告)号：US11438786B1

公开(公告)日：2022-09-06

申请号：US16009950

申请日：2018-06-15

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Rongsheng Huang ,  Ravi Ichapurapu ,  Morris Yuanhsiang Hsu ,  Vipul Jain ,  Jungtao Liu

IPC: H04W28/02 ,  H04L43/10 ,  H04W40/12 ,  G06F3/16 ,  H04L45/12 ,  H04W84/12

Abstract: A group of devices connected on a wireless local area network (WLAN) operate in conjunction with one another to present content. Devices in the group may be wirelessly connected via personal area network (PAN) to other devices, such as speakers. An election process is used to select a primary device. The primary device may receive content from an external source, such as a server, and distribute that content to other devices within the group via the WLAN. The parameters of that distribution, such as a content rate indicative of a bitrate of the content, transfer limit rate, and so forth are configured to preserve fidelity of the presentation while minimizing interruptions to presentation that may result due to frequency contention between the WLAN and the PAN, traffic on the WLAN, and so forth.

公开(公告)号：US10574316B1

公开(公告)日：2020-02-25

申请号：US15987684

申请日：2018-05-23

Applicant: Amazon Technologies, Inc.

Inventor： Ravi Ichapurapu ,  Shao-Cheng Wang ,  Vipul Jain ,  Kun Ting Tsai ,  Milos Jorgovanovic ,  Chirag Saurabh Bhavsar ,  Vinay Gotnakodlu Hegde

IPC: H04B7/06 ,  H04W4/80 ,  H04W8/00 ,  H04B17/318 ,  H04W84/12

Abstract: A device includes a first radio controller, a second radio controller, and a processor. The processor is configured to execute instructions for determining that a first signal strength of a signal received from a remote device by a first antenna electrically connected to the first radio controller is less than a minimum signal strength threshold for communications using the first antenna, identifying a network process configured to communicate with a remote device using the first radio controller or the second radio controller, and determining that the processor is not executing the network process. The processor is further configured to execute instructions for, determining a second signal strength of a second signal received from the remote device by a second antenna, determining the second signal strength is greater than the first signal strength, and causing the first radio controller to communicate using the second antenna.