公开(公告)号：US20190283669A1

公开(公告)日：2019-09-19

申请号：US16300578

申请日：2016-05-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hongrui JIANG ,  Qiang DING ,  Zheng LIN ,  Liyao ZHANG

IPC: B60Q9/00 ,  B60Q3/80 ,  G08B21/24

Abstract: This application relates to the field of intelligent hardware, and in particular, to an intelligent scenario in which a mobile terminal and a car are combined. After detecting, by using an acceleration sensor and a gyroscope of the mobile terminal, that a car engine stops, the mobile terminal receives, from a sensor installed near a roof lamp of the car, a signal indicating that the roof lamp is on, and determines that a door of the car is opened. In this case, the mobile terminal sends a reminder to a user.

公开(公告)号：US20180316075A1

公开(公告)日：2018-11-01

申请号：US16023774

申请日：2018-06-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhiqiang LIAO ,  Zheng LIN ,  Qiyi LU ,  Xionghui FAN

IPC: H01P1/18 ,  H01P5/12 ,  H01P1/06

Abstract: The present disclosure relates to a phase shifter, an antenna, and a radio communications device. One example phase shifter includes a cavity, a rotating shaft, a main printed circuit board (PCB), a first slidable part, and a second slidable part. The first slidable part is located on a front side of the main PCB and coupled to the main PCB. The second slidable part is located on a rear side of the main PCB and coupled to the main PCB. The rotating shaft is inserted into the cavity and connected to the first slidable part and the second slidable part. The first arc-shaped phase delay line and the second arc-shaped phase delay line are distributed on a circle with a center that is the same as a center of the rotating shaft, and are located on an outer side of a primary central coupling section.