Huawei Technologies Co., Limited

Han's Laser Technology Industry Group Co., Ltd.

Jiangang Tang

Xiaojun Zhang

Yunfeng Gao

Xiao Liu

Qiang Wei

Bing Luo

Zhong Zhang

Jianfei Ma

Jiangang Yin

Guodong Ma

Jiangang Lu

Xuerui Yuan

Lingtian Diao

Yuguo Peng

A method for cutting sapphire comprising a sapphire body and a coating formed on the sapphire body, the method comprising: focusing a first COlaser beam the coating via a COfocusing assembly to remove the coating with a predetermined thickness extending along a first path; wherein dust and debris generated during removal of the coating are removed while the coating is removed; focusing an ultrafast laser beam on the sapphire body via an optical path shaping assembly to form a plurality of restructuring channels distributed along a second path and penetrating through the sapphire; wherein the second path coincides with the first path; scanning, by the second COlaser beam, the sapphire body via a galvanometer focusing assembly, wherein a path of the second COlaser beam scanning the sapphire body via a galvanometer focusing assembly coincides with or deviates from the second path, so that the sapphire cracks along the restructuring channels.

Method and device for cutting sapphire

A method of device management relating to communication technology, wherein the method comprises the following steps of: the device initiatively sending a IP packet for management registration request to a management system according to address information of the management system, the request packet at least comprising the unique device identifier and IP address of the device; after the management system receiving registration request of the device, judging whether this device is legal or not according the unique device identifier, if it is, accepting the registration, otherwise rejecting. Dynamic configuration of the device can be performed through standard DHCP (Dynamic Host Configuration Protocol) procedure; encryption manner can be adopted for the IP packet for management registration request and its response packet; the device sends the management registration packets to management system at every internal; the present invention is of low maintenance cost, high efficiency, and high network management system security, avoiding illegal and forged devices from accessing.

Method for adding devices to management system

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Shenzhen, China

Jiangang Tang