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Method of communication link acquisition using search pattern

專利號(hào)
US10868615B1
公開(kāi)日期
2020-12-15
申請(qǐng)人
X DEVELOPMENT LLC(US CA Mountain View)
發(fā)明人
Paul Csonka; Edward Allen Keyes
IPC分類
H04B10/27; H04B10/11
技術(shù)領(lǐng)域
beacon,device,200b,200a,search,secondary,beam,primary,optical,pattern
地域: CA CA Mountain View

摘要

Aspects of the disclosure provide for a method of forming a communication link between two communication devices using a primary search pattern and a secondary search pattern. A misalignment between a first optical system of a first communication device and a second optical system of a second communication device is detected. The first optical system is rotated according to the primary search pattern, and the second optical system according to the secondary search pattern. At the second communication device, a set of frames is captured. Then, it is determined whether a beacon beam transmitted from the first communication device is detected in the one or more of the captured frames. When it is determined that the beacon beam is detected, the communication link is formed between the first communication device and the second communication device.

說(shuō)明書(shū)

As shown in diagram 900 of FIG. 9, the primary search pattern 800 and the secondary search pattern 700 may be configured to run such that when the primary device is at beacon position 0, the secondary device may complete an entire cycle of the secondary search pattern 700 comprising frame position 0 through frame position 11. According to the secondary search pattern 700, the secondary device is configured to remain at each frame position for first set amount of time 902 of about 0.004 seconds. According to the primary search pattern 800, the primary device is configured to remain at each beacon position for second set amount of time 904 of about 0.048 seconds. After one cycle of the secondary search pattern 700 is completed, the primary and secondary search patterns 700, 800 may then be configured such that the primary device moves to beacon position 1 and the secondary device completes another cycle of the secondary search pattern 700 while the primary device is at beacon position 1. The primary and secondary search patterns 700, 800 may continue according to this configuration until the primary device completes one cycle of the primary search pattern 800 or until a communication link 22 is established between the primary and secondary devices.

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