-
公开(公告)号：US20250060848A1
公开(公告)日：2025-02-20
申请号：US18935677
申请日：2024-11-04
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jiabao Mo , Kaifeng Deng , Yang Zou , Junyong Zhang
IPC: G06F3/041
Abstract: An electronic device control method is provided. The method may be applied to an electronic device having a touchscreen. A display drive circuit and a touch sensor that match the touchscreen are configured in the electronic device. The method includes: The display drive circuit performs pixel scan. The touch sensor collects a touch signal once after the display drive circuit scans S rows of pixels each time, where S≥1. Touch signals collected N consecutive times are used as one group. An uplink synchronization signal is transmitted to the outside in a slot for collecting a touch signal for the Kth time in each group, where 1≤K≤N. The uplink synchronization signal is used to perform time alignment with an external device.
-
公开(公告)号：US20190028206A1
公开(公告)日：2019-01-24
申请号：US16139307
申请日：2018-09-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Changzheng Su , Yang Zou
Abstract: Embodiments of this application disclose a quantum signal detection method and a quantum signal detection apparatus. The method includes: splitting a received optical pulse sequence into a first pulse sequence and a second pulse sequence that are in orthogonal polarization, where the signal pulses are quantum signal pulses; obtaining information about the reference pulses; generating local oscillator light; splitting the local oscillator light into first local oscillator light and second local oscillator light whose intensities are the same and that are in orthogonal polarization; performing homodyne detection on the first pulse sequence and the first local oscillator light, and performing homodyne detection on the second pulse sequence and the second local oscillator light, to obtain homodyne detection results; and obtaining regular components of the signal pulses in the optical pulse sequence according to the homodyne detection results and the information about the reference pulses.
-
公开(公告)号：US11595196B2
公开(公告)日：2023-02-28
申请号：US17069317
申请日：2020-10-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhengyu Li , Changzheng Su , Su Hu , Yang Zou
Abstract: This application provide quantum key distribution methods, devices, and storage media. In an implementation, a method comprises: determining, based on a first mapping, a first quantum key of N first quantum keys corresponding to an ith node on a target routing path; determining, based on a second mapping, a second quantum key of N second quantum keys corresponding to the ith node; and generating, by the ith node based on the first quantum key corresponding to the ith node and the second quantum key corresponding to the ith node, a third quantum key corresponding to the ith node on the target routing path.
-
公开(公告)号：US11444758B2
公开(公告)日：2022-09-13
申请号：US16868789
申请日：2020-05-07
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhengyu Li , Changzheng Su , Yang Zou , Yongjing Cai
IPC: H04L9/08 , G02B27/28 , H03M1/12 , H04B10/556 , H04B10/64
Abstract: A key generation method includes modulating a first key to a first light source signal, to obtain a modulated optical signal, splitting the modulated optical signal, to obtain a first sub modulated optical signal and a second sub modulated optical signal, attenuating the first sub modulated optical signal such that a quantity of photons included in each period of the first sub modulated optical signal is less than a preset value, and sending an attenuated first sub modulated optical signal to a receive-end device, and obtaining a second key carried in the second sub modulated optical signal, and storing the second key.
-
公开(公告)号：US10574364B2
公开(公告)日：2020-02-25
申请号：US16139307
申请日：2018-09-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Changzheng Su , Yang Zou
Abstract: Embodiments of this application disclose a quantum signal detection method and a quantum signal detection apparatus. The method includes: splitting a received optical pulse sequence into a first pulse sequence and a second pulse sequence that are in orthogonal polarization, where the signal pulses are quantum signal pulses; obtaining information about the reference pulses; generating local oscillator light; splitting the local oscillator light into first local oscillator light and second local oscillator light whose intensities are the same and that are in orthogonal polarization; performing homodyne detection on the first pulse sequence and the first local oscillator light, and performing homodyne detection on the second pulse sequence and the second local oscillator light, to obtain homodyne detection results; and obtaining regular components of the signal pulses in the optical pulse sequence according to the homodyne detection results and the information about the reference pulses.
-
Patent Agency Ranking
公开(公告)号：US11875223B2
公开(公告)日：2024-01-16
申请号：US17243072
申请日：2021-04-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhengyu Li , Changzheng Su , Yang Zou , Yongjing Cai
Abstract: A quantum bit control apparatus, including a control signal generator, optoelectronic detectors, a quantum chip, and a shielding apparatus, the optoelectronic detectors are disposed in the shielding apparatus, and an inner part of the shielding apparatus is in a vacuum state. The control signal generator is disposed in a first temperature area, and is configured to generate optical control signals and send the N optical control signals to the optoelectronic detectors. The optoelectronic detectors are disposed in a second temperature area having a temperature lower than of the first temperature area. The N optoelectronic detectors are configured to convert the received optical control signals into electronically controlled signals and send the electronically controlled signals to the quantum chip. The quantum chip is disposed in the second temperature area, and controls a quantum bit in the quantum chip based on the electronically controlled signals.
-
公开(公告)号：US10817097B2
公开(公告)日：2020-10-27
申请号：US15562536
申请日：2015-08-25
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chingyi Wang , Xiaoyan Yu , Junyong Zhang , Yang Zou , Ren Lv , Jianpeng Li , Hang Li
IPC: G06F3/041 , G02F1/1333 , G06F3/044
Abstract: A terminal includes a cover, a display module, and a metal middle frame. The display module is located between the cover and the metal middle frame, and the metal middle frame is grounded. The terminal further includes a conducting layer, where the conducting layer is attached to a lower surface of the display module, and at least one gap exists between the conducting layer and the metal middle frame. The conducting layer, the metal middle frame, and the at least one gap form at least one capacitor, where a capacitance change of the at least one capacitor reflects a magnitude of at least one pressure acted on the cover.
-
公开(公告)号：US20220137729A1
公开(公告)日：2022-05-05
申请号：US17431391
申请日：2020-02-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yang Zou , Junyong Zhang
IPC: G06F3/0354 , G06F3/038 , G06F3/041 , G06F3/044 , H04W4/80
Abstract: An active stylus calibration method includes establishing, by an electronic device having a touchscreen, a network connection to an active stylus, detecting a function signal from the active stylus, determining a distance between the active stylus and the touchscreen based on a parameter value, obtained through detection, corresponding to the function signal, where a smaller parameter value indicates a larger distance, and when a timing is started when the distance is at a first threshold, the timing duration reaches a specified duration and the distance is at a second threshold, sending, through a network, a force calibration instruction to the active stylus to calibrate a force sensor based on the force calibration instruction.
-
公开(公告)号：US20200266978A1
公开(公告)日：2020-08-20
申请号：US16868789
申请日：2020-05-07
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhengyu Li , Changzheng Su , Yang Zou , Yongjing Cai
IPC: H04L9/08 , H04B10/64 , H04B10/556 , H03M1/12 , G02B27/28
Abstract: A key generation method includes modulating a first key to a first light source signal, to obtain a modulated optical signal, splitting the modulated optical signal, to obtain a first sub modulated optical signal and a second sub modulated optical signal, attenuating the first sub modulated optical signal such that a quantity of photons included in each period of the first sub modulated optical signal is less than a preset value, and sending an attenuated first sub modulated optical signal to a receive-end device, and obtaining a second key carried in the second sub modulated optical signal, and storing the second key.
-
公开(公告)号：US20180113554A1
公开(公告)日：2018-04-26
申请号：US15562536
申请日：2015-08-25
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chingyi Wang , Xiaoyan Yu , Junyong Zhang , Yang Zou , Ren Lv , Jianpeng Li , Hang Li
Abstract: A terminal includes a cover, a display module, and a metal middle frame. The display module is located between the cover and the metal middle frame, and the metal middle frame is grounded. The terminal further includes a conducting layer, where the conducting layer is attached to a lower surface of the display module, and at least one gap exists between the conducting layer and the metal middle frame. The conducting layer, the metal middle frame, and the at least one gap form at least one capacitor, where a capacitance change of the at least one capacitor reflects a magnitude of at least one pressure acted on the cover.
-
-
-
-
-
-
-
-
-
Search Results
11
records
(took 0.017 seconds)
