公开(公告)号：US11536911B2

公开(公告)日：2022-12-27

申请号：US17147930

申请日：2021-01-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dan Guo ,  Baoqi Wang ,  Junying Zhao

IPC: G02B6/38

Abstract: A ferrule includes a ferrule matrix, an optical fiber, and a dielectric reflective film. The optical fiber is disposed in an accommodating through hole of the ferrule matrix, and the dielectric reflective film covers an optical transmission surface of the optical fiber and a surface that is of the ferrule matrix and that faces a matching ferrule. The dielectric reflective film has a through hole, such that the dielectric reflective film does not shield a main optical path area of the optical transmission surface of the optical fiber. A reflective band of the dielectric reflective film includes at least a part of a communication band of the optical fiber. In this way, when light from the matching ferrule is transmitted to the ferrule matrix and the optical fiber, the dielectric reflective film reflects the light.

公开(公告)号：US20220067475A1

公开(公告)日：2022-03-03

申请号：US17416303

申请日：2019-07-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Enhua Deng ,  Dan Guo ,  Weiwen Pang ,  Zhixiong Li

IPC: G06K19/077 ,  H05K5/02 ,  G06K19/07

Abstract: A memory card includes a packaging board and a plurality of contacts disposed on one side surface of the packaging board, where the contacts include a power supply contact, a grounding contact, and a detection contact. The detection contact is disposed adjacent to one of the power supply contact or the grounding contact and is suspended or electrically connected to the other of the power supply contact or the grounding contact.

公开(公告)号：US12038612B2

公开(公告)日：2024-07-16

申请号：US18064452

申请日：2022-12-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dan Guo ,  Baoqi Wang ,  Junying Zhao

IPC: G02B6/38 ,  G02B6/42

CPC classification number: G02B6/3845 ,  G02B6/3818 ,  G02B6/3833 ,  G02B6/3813 ,  G02B6/382 ,  G02B6/4296

Abstract: A ferrule includes a ferrule matrix, an optical fiber, and a dielectric reflective film. The optical fiber is disposed in an accommodating through hole of the ferrule matrix, and the dielectric reflective film covers an optical transmission surface of the optical fiber and a surface that is of the ferrule matrix and that faces a matching ferrule. The dielectric reflective film has a through hole, such that the dielectric reflective film does not shield a main optical path area of the optical transmission surface of the optical fiber. A reflective band of the dielectric reflective film includes at least a part of a communication band of the optical fiber. In this way, when light from the matching ferrule is transmitted to the ferrule matrix and the optical fiber, the dielectric reflective film reflects the light.

公开(公告)号：US11893436B2

公开(公告)日：2024-02-06

申请号：US17417705

申请日：2019-07-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lingcong Xie ,  Dan Guo ,  Enhua Deng ,  Zhixiong Li

IPC: G06K19/07 ,  G06F13/10 ,  G06F13/38 ,  G06K7/00 ,  G06K19/077

CPC classification number: G06K19/0722 ,  G06F13/102 ,  G06F13/385 ,  G06K7/0052 ,  G06K19/07732 ,  G06K19/07743

Abstract: A memory card identification method and a mobile device are provided. The memory card identification method includes: sending an initialization command of a first-type memory card communications protocol to a to-be-identified memory card; detecting whether there is a response in a command pin of the memory card; and identifying the memory card as a first-type memory card or a second-type memory card based on a response status of the command pin.

公开(公告)号：US20220076090A1

公开(公告)日：2022-03-10

申请号：US17417705

申请日：2019-07-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lingcong Xie ,  Dan Guo ,  Enhua Deng ,  Zhixiong Li

IPC: G06K19/07 ,  G06F13/10 ,  G06F13/38 ,  G06K19/077 ,  G06K7/00

Abstract: A memory card identification method and a mobile device are provided. The memory card identification method includes: sending an initialization command of a first-type memory card communications protocol to a to-be-identified memory card; detecting whether there is a response in a command pin of the memory card; and identifying the memory card as a first-type memory card or a second-type memory card based on a response status of the command pin.

公开(公告)号：US20200371297A1

公开(公告)日：2020-11-26

申请号：US16989083

申请日：2020-08-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dan Guo ,  Baoqi Wang

IPC: G02B6/38 ,  G02B6/40

Abstract: A ferrule is provided, the fiber is inserted into a through hole axially disposed in the ferrule body, a first end of the fiber is located inside the through hole, a vertical distance between an end face of the first end of the fiber and a plane on which a connection end face of the ferrule body is located is a first preset distance, and the first preset distance is a distance that can leave a gap between a fiber of the ferrule and a fiber of another ferrule after the ferrule abuts the another ferrule.

公开(公告)号：US20230127959A1

公开(公告)日：2023-04-27

申请号：US18069613

申请日：2022-12-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dan Guo ,  Baoqi Wang

IPC: G02B6/38 ,  G02B6/40

Abstract: A ferrule is provided, the fiber is inserted into a through hole axially disposed in the ferrule body, a first end of the fiber is located inside the through hole, a vertical distance between an end face of the first end of the fiber and a plane on which a connection end face of the ferrule body is located is a first preset distance, and the first preset distance is a distance that can leave a gap between a fiber of the ferrule and a fiber of another ferrule after the ferrule abuts the another ferrule.