公开(公告)号：US20180255523A1

公开(公告)日：2018-09-06

申请号：US15971854

申请日：2018-05-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zheng LIU ,  Yubo YANG ,  Chao LUO

IPC: H04W56/00 ,  H04W74/08 ,  H04W72/04

CPC classification number: H04W56/001 ,  H04L5/0092 ,  H04L67/12 ,  H04W72/0453 ,  H04W74/0833 ,  H04W88/02 ,  H04W88/08

Abstract: This disclosure relates to the field of communications technologies, and in particular, to a method and an apparatus for obtaining an uplink-downlink carrier frequency spacing. The method for obtaining an uplink-downlink carrier frequency spacing may include initiating, by user equipment (UE), a request in a first cell to access an NB-IoT, and receiving an indication message sent by a base station. The method may also include determining, by the UE according to the indication information, an uplink-downlink carrier frequency spacing corresponding to the first cell. Therefore, the base station can notify the UE of the uplink-downlink carrier frequency spacing corresponding to the first cell, so that the terminal obtains a correct uplink carrier frequency.

公开(公告)号：US20240265799A1

公开(公告)日：2024-08-08

申请号：US18637272

申请日：2024-04-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dian XU ,  Chao LIN ,  Zheng LIU ,  Lingui XU ,  Han LI ,  Quan Hu

IPC: G08B25/10 ,  G01R31/30 ,  G05B13/02

CPC classification number: G08B25/10 ,  G01R31/3004 ,  G05B13/0255

Abstract: A communication device includes: one or more voltage conversion circuits. The one or more voltage conversion circuits are separately coupled to a power supply of the communication device. A voltage sampling circuit is coupled to the power supply, and/or the voltage sampling circuit is coupled to an output end of at least one of the one or more voltage conversion circuits. A controller is configured to: control the voltage sampling circuit to collect voltages output by the power supply or voltages output by a first voltage conversion circuit in a plurality of sending timeslots or a plurality of receiving timeslots of the communication device; and determine a real voltage of the power supply based on the voltages output by the power supply or the voltages output by the first voltage conversion circuit in the plurality of sending timeslots or the plurality of receiving timeslots of the communication device.

公开(公告)号：US20220413602A1

公开(公告)日：2022-12-29

申请号：US17304615

申请日：2021-06-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhenhao LI ,  Rasoul MOHAMMADI NASIRI ,  Zheng LIU ,  Hisham ELHALABI ,  Yuanhao YU ,  Roel VERTEGAAL ,  Yang WANG ,  Jin TANG

IPC: G06F3/01 ,  G06K9/00 ,  G06T17/20 ,  G06T7/80

Abstract: A system and a method for performing 2D on-screen user gaze estimation using an input facial image of a user captured using a camera associated to a processing device having a display. The method and system allow automated user calibration through automatic recording of calibration samples each including a calibration facial image of the user and an interaction point corresponding to a point on the display where an occurrence of a user interaction was detected when the corresponding calibration image was captured. The system and method also optimize user-specific parameters using the calibration samples by iteratively minimizing a total difference between the interaction points of a plurality of the calibration samples and corresponding 2D gaze estimation results and convert an estimated 3D gaze direction into a 2D gaze estimation result corresponding to a point on the display, by applying the users-specific parameters.

公开(公告)号：US20150128080A1

公开(公告)日：2015-05-07

申请号：US14594470

申请日：2015-01-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zheng LIU

IPC: G06F3/0488

CPC classification number: G06F3/04886

Abstract: Embodiments of the present invention provide a method and terminal for operating through a touch screen. The method includes: after a transparent virtual keyboard is displayed, receiving a first operation for a display area of the transparent virtual keyboard through a touch screen; determining, according to the first operation, that a target object of the first operation is a page content in the display area of the transparent virtual keyboard; and performing the first operation for the page content in the display area of the transparent virtual keyboard. Therefore, the operation may be directly performed for the determined target object. Therefore, no additional operation is required to perform switching between the transparent virtual keyboard and the page, thereby reducing user operations and improving the user experience.

Abstract translation: 本发明的实施例提供了一种通过触摸屏操作的方法和终端。 该方法包括：在显示透明虚拟键盘之后，通过触摸屏接收透明虚拟键盘的显示区域的第一操作; 根据第一操作，确定第一操作的目标对象是透明虚拟键盘的显示区域中的页面内容; 以及对透明虚拟键盘的显示区域中的页面内容执行第一操作。 因此，可以直接对所确定的目标对象执行操作。 因此，不需要额外的操作来执行透明虚拟键盘和页面之间的切换，从而减少用户操作并改善用户体验。