公开(公告)号：US12100926B2

公开(公告)日：2024-09-24

申请号：US17243656

申请日：2021-04-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanbing Cheng ,  Heng Wang ,  Jing Dai ,  Yinghua Dong

IPC: H01S3/10 ,  G02B6/12 ,  H01S5/14 ,  H04B10/69

CPC classification number: H01S3/10023 ,  G02B6/12009 ,  H01S5/141 ,  H04B10/691

Abstract: An embodiment of the present invention provides a photodetector chip, including a substrate, a semiconductor optical amplification section, and a photodetection section. The substrate includes a surface, the photodetection section and the semiconductor optical amplification section are arranged on the substrate, and the photodetection section is located in an optical signal output direction of the semiconductor optical amplification section. The semiconductor optical amplification section amplifies and filters an input optical signal to output an amplified and filtered optical signal to the photodetection section. The photodetection section is configured to convert the amplified and filtered optical signal into an electrical signal. The semiconductor optical amplification section includes a grating, the grating includes a first grating and a second grating that are cascaded, and the first grating is a slanted grating. The first grating and the second grating are configured to filter an optical signal entering the semiconductor optical amplification section.

公开(公告)号：US20180109291A1

公开(公告)日：2018-04-19

申请号：US15567844

申请日：2015-05-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhonghui Peng ,  Heng Wang ,  Yonggang Wang ,  Dongjin Chen ,  Yang Gao

IPC: H04B5/00

CPC classification number: H04B5/0037 ,  H04B1/3816 ,  H04B5/00 ,  H04B5/0031

Abstract: A mobile device with the NFC function includes an NFC chip, multiple SIM card slots, a power supply unit, and an eSE integrated into the NFC chip. One SIM card slot is connected to a first power port on the NFC chip. The power supply unit is connected to a second power port on the NFC chip. When the mobile device performs near field communication, the second power port on the NFC chip is triggered to output a first level signal. Each of the rest SIM card slots is connected to the power supply unit. The eSE is connected to the power supply unit. The power supply unit is configured to supply power to the eSE and the SIM card slot that is connected to the power supply unit, when the first level signal is received.

公开(公告)号：US20250013015A1

公开(公告)日：2025-01-09

申请号：US18891028

申请日：2024-09-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yajun Niu ,  Wei Tang ,  Dengfeng Li ,  Xinxiu Bian ,  Heng Wang ,  Haishui Ye ,  Jianlong Lu ,  Le Zhang

IPC: G02B13/00 ,  G02B3/12 ,  G02B9/62 ,  G03B30/00

Abstract: This application discloses an optical lens, a camera module, and an electronic device. The optical lens includes a first lens group and a second lens group that are arranged from an object side to an image side, where the first lens group has positive focal power, the second lens group has negative focal power, and the first lens group and/or the second lens group are/is focusing lens groups/a focusing lens group. In a focusing process in which the optical lens switches from a long shot to a close-up shot, a spacing between the first lens group and the second lens group increases, and an effective focal length of the optical lens decreases. The optical lens satisfies a relational expression: F2/EFL>−5, where F2 is a focal length of the second lens group, and EFL is the effective focal length of the optical lens.

公开(公告)号：US20220150167A1

公开(公告)日：2022-05-12

申请号：US17583345

申请日：2022-01-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yanrong Liang ,  Zhi Li ,  Heng Wang

IPC: H04L45/74 ,  H04L45/00

Abstract: Embodiments of this application disclose a BIER packet processing method. The method includes: receiving, by a first network device, a first BIER packet sent by a second network device, where the first BIER packet carries a device identifier of the second network device; obtaining, by the first network device, a device identifier of a third network device based on a correspondence between the first BIER packet and the third network device; and when the device identifier of the second network device is the same as the device identifier of the third network device, discarding, by the first network device, the first BIER packet; or when the device identifier of the second network device is different from the device identifier of the third network device, sending, by the first network device to the third network device, a second BIER packet generated based on the first
BIER packet.

公开(公告)号：US10128910B2

公开(公告)日：2018-11-13

申请号：US15567844

申请日：2015-05-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhonghui Peng ,  Heng Wang ,  Yonggang Wang ,  Dongjin Chen ,  Yang Gao

IPC: H04B5/00 ,  H04B1/3816

Abstract: A mobile device with the NFC function includes an NFC chip, multiple SIM card slots, a power supply unit, and an eSE integrated into the NFC chip. One SIM card slot is connected to a first power port on the NFC chip. The power supply unit is connected to a second power port on the NFC chip. When the mobile device performs near field communication, the second power port on the NFC chip is triggered to output a first level signal. Each of the rest SIM card slots is connected to the power supply unit. The eSE is connected to the power supply unit. The power supply unit is configured to supply power to the eSE and the SIM card slot that is connected to the power supply unit, when the first level signal is received.

公开(公告)号：US20170005728A1

公开(公告)日：2017-01-05

申请号：US15264286

申请日：2016-09-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Heng Wang ,  Zhiguang Xu ,  Enyu Zhou

IPC: H04B10/079 ,  H04B10/564 ,  H04J14/02 ,  H04B10/50 ,  H04B10/071 ,  H04B10/272

CPC classification number: H04B10/07955 ,  H04B10/071 ,  H04B10/272 ,  H04B10/503 ,  H04B10/5057 ,  H04B10/564 ,  H04B10/572 ,  H04J14/0221 ,  H04J14/0242 ,  H04J14/0282

Abstract: A method includes monitoring a power value of output light of the laser and a power value of reflected light, obtaining an insertion loss value according to the power value of the output light, the power value of the reflected light, and a parameter of a Faraday rotation reflector, obtaining a bias current value according to the insertion loss value, and adjusting the power value of the output light of the laser using the bias current value. The insertion loss value is obtained by detecting the power value of the reflected light obtained after the output light of the laser is reflected. Because the insertion loss value is a power loss value, of the output light of the laser, on a one-way link between the laser and the Faraday rotation mirror.

Abstract translation: 一种方法包括监视激光器的输出光的功率值和反射光的功率值，根据输出光的功率值，反射光的功率值和法拉第的参数获得插入损耗值 旋转反射器，根据插入损耗值获得偏置电流值，并使用偏置电流值调整激光器的输出光的功率值。 通过检测在激光的输出光被反射之后获得的反射光的功率值来获得插入损耗值。 因为插入损耗值是激光输出光的功率损耗值，在激光器和法拉第旋转镜之间的单向连接上。

公开(公告)号：US20230269165A1

公开(公告)日：2023-08-24

申请号：US18309532

申请日：2023-04-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jingrong Xie ,  Heng Wang ,  Fanghong Duan ,  Gang Yan

IPC: H04L45/02 ,  H04L45/12

CPC classification number: H04L45/02 ,  H04L45/12

Abstract: Embodiments of this application provide a next hop determining method. The method is applied to a BIER domain based on bit index forwarding routing, and includes: A third device obtains first BIER information of a first device, an attribute of the first device, second BIER information of a second device, and an attribute of the second device, where the first BIER information includes a bit forwarding router identifier BFR-id of an edge bit forwarding router BFR in a sub-domain, and the second BIER information includes the BFR-id of the edge BFR in the sub-domain. The third device determines, based on the first BIER information, the second BIER information, the attribute of the first device, and the attribute of the second device, a next hop to the edge BFR in the sub-domain.

公开(公告)号：US20220131808A1

公开(公告)日：2022-04-28

申请号：US17646963

申请日：2022-01-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jingrong Xie ,  Yang Xia ,  Fanghong Duan ,  Heng Wang ,  Biyi Lin

IPC: H04L47/28 ,  H04L45/02 ,  H04L45/74 ,  H04L47/12

Abstract: A destination node device starts a timer when the destination node device determines that a network topology changes; before the timer expires, the destination node device forwards the BIER packet by using an old forwarding table and establishes a new forwarding table, where the old forwarding table is a forwarding table used by the destination node device before the network topology changes, the new forwarding table is a forwarding table established by the destination node device based on the changed network topology; and after the timer expires, the destination node device switches the old forwarding table to the new forwarding table, and forwards the BIER packet according to the new forwarding table.

公开(公告)号：US20240411115A1

公开(公告)日：2024-12-12

申请号：US18810531

申请日：2024-08-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Heng Wang ,  Yajun Niu ,  Jianlong Lu ,  Haishui Ye ,  Wei Tang

IPC: G02B13/02 ,  G02B13/00 ,  G02B13/24 ,  G02B15/14

Abstract: A long-focus lens, a camera assembly, and an electronic device are provided. When the long-focus lens focuses on a distant view, a field of view (FOV) of the long-focus lens is less than 60°. The long-focus lens includes a first lens group and a second lens group that are arranged from an object side to an image side. The first lens group has a positive focal power, and the second lens group has a negative focal power. In a focusing process in which the long-focus lens switches focus between the distant view and a close-up view, a distance between the first lens group and the second lens group changes. The long-focus lens not only can implement telephoto shooting with high imaging quality, but also can have a strong close-up shooting capability, to implement wide-object-distance imaging from a distant view to a close-up view.

公开(公告)号：US09866318B2

公开(公告)日：2018-01-09

申请号：US15264286

申请日：2016-09-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Heng Wang ,  Zhiguang Xu ,  Enyu Zhou

IPC: H04B17/00 ,  H04B10/079 ,  H04B10/071 ,  H04B10/272 ,  H04B10/564 ,  H04B10/50 ,  H04J14/02

CPC classification number: H04B10/07955 ,  H04B10/071 ,  H04B10/272 ,  H04B10/503 ,  H04B10/5057 ,  H04B10/564 ,  H04B10/572 ,  H04J14/0221 ,  H04J14/0242 ,  H04J14/0282

Abstract: A method includes monitoring a power value of output light of the laser and a power value of reflected light, obtaining an insertion loss value according to the power value of the output light, the power value of the reflected light, and a parameter of a Faraday rotation reflector, obtaining a bias current value according to the insertion loss value, and adjusting the power value of the output light of the laser using the bias current value. The insertion loss value is obtained by detecting the power value of the reflected light obtained after the output light of the laser is reflected. Because the insertion loss value is a power loss value, of the output light of the laser, on a one-way link between the laser and the Faraday rotation mirror.