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Power efficient wireless connectivity

專利號
US10080193B1
公開日期
2018-09-18
申請人
Amazon Technologies, Inc.(US WA Seattle)
發(fā)明人
Gilles-Arnaud Bleu-Laine; Eduardo Bezerra Valentin; Aditya Yashwant Bhave; James David Meyers; Hanxiao Fu
IPC分類
H04L29/08; H04W52/02
技術(shù)領(lǐng)域
keepalive,wakeup,power,mode,server,may,circuitry,low,device,messages
地域: WA WA Seattle

摘要

Described herein are systems and methods for maintaining a wireless connection to a remote server while a device is in a low power mode. As a result of maintaining the connection, the device can receive messages triggering a wakeup event and placing the device in a normal power mode, enabling the device to be controlled remotely. To maintain the connection, the device transitions from sending encrypted network messages to a server from a first interval while in the normal power mode to a second interval while in the low power mode. In addition, the device sends unencrypted network messages to the server at the first interval using low power circuitry. The low power circuitry receives messages from the server and may trigger the device to enter the normal power mode and/or a connection maintenance mode.

說明書

As illustrated in FIG. 1, the device 102 may determine (134) if a wakeup event is detected (e.g., detection of a wakeword). A wakeup event may include a connection wakeup event and/or a normal wakeup event. If the device 102 determines that a wakeup event is not detected, the device 102 may loop (136) to step 132 and remain in the low power mode. If the device 102 determines that a connection wakeup event is detected, the device 102 may enter (138) the connection maintenance mode and communicate (140) with the server(s) 112 before looping (142) to step 130 and entering the low power mode. However, while communicating with the server in step 140, the device 102 may receive first messages requiring the device 102 to perform additional operations. If the device 102 receives these first messages, the device 102 may loop (144) to step 120 and enter the normal power mode to perform the additional operations. Additionally or alternatively, if the device 102 determines that a normal wakeup event is detected, the device 102 may loop (146) to step 120 and enter the normal power mode. The device 102 may continue to operate in the normal power mode until determining to enter the low power mode again.

權(quán)利要求

1
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