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Method of communication link acquisition using search pattern

專利號(hào)
US10868615B1
公開日期
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.

說明書

When the one or more processors 210 tracking a beacon beam 24 in the cropped portion of the frame temporarily loses the beacon beam 24, the one or more processors 210 may enlarge the cropped portion of the frame using the receiver 240 to encompass a larger pixel region until the beacon is detected. Then the cropped portion of the frame may be reduced, and tracking performed as previously described. When the cropped portion of the frame is enlarged more than a maximum threshold size, the first and second communication devices 200a, 200b may be designated as primary and secondary devices, and the primary and secondary search pattern 700, 800 may be initiated from where the beacon beams 24a, 24b were last detected.

In FIG. 11, a flow diagram 1100 is shown in accordance with some of the aspects described above that may be performed by one or more processors 210 of communication device 200. While FIG. 11 shows blocks in a particular order, the order may be varied and that multiple operations may be performed simultaneously. Also, operations may be added or omitted.

權(quán)利要求

1
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