Dolby Laboratories Licensing Corporation

International Business Machines Corporation

Otis Elevator Company

Boe Technology Group Co., Ltd.

Ordos Yuansheng Optoelectronics Co., Ltd.

Via Alliance Semiconductor Co., Ltd.

Veritas Technologies LLC

Huawei Technologies Co., Limited

Via Technologies, Inc.

Lenovo (Beijing) Limited

Petrochina Company Limited

Sony Group Corporation

Chinese Academy of Sciences

The University of Akron

China Mobile Communications Corporation

Kai Lin Li

Xuejing Sun

David Gunawan

Glenn N Dickins

Hong Li

Dong Shi

Lei Gao

Siqi Ma

Jin Rong Wang

A Peng Zhang

Yun Shen

Haofeng Hou

Hui Li

Xianbo Zhang

Weibao Wu

Hong Liu

Yezhou Fang

Fengguo Wang

Xinguo Wu

Zhixuan Guo

Liang Tian

Shuangmin Zhang

Feng Li

Zhi Hu Wang

Ning Duan

Shen Huang

Hui Chen

Hannes Muesch

Shenhong Wang

Gary Spittle

Paul Francis Holmberg

Bo Ma

Jiayi Zhuang

Yan Zhao Liu

Feng Deng

Liyun Luo

Hai-feng Wang

Fu Qi

Shengzhao Li

Jing Wang

Peng Liu

Heiko Purnhagen

Xin Zhang

Lei Li

Jin Liu

Zifeng Wang

Yu Zhang

Wei Shan Dong

Wei Song

Dong Hai Yu

Peng Gao

Jing James Xu

Wei Peng Huang

Jing Zhao

Min Liu

Mark Stuart Vinton

Yu Wang

Xiangyang Li

Harald Mundt

Richard James Cartwright

He Huang

Jiang Wang

Jian Mg Cheng

Shuai Zhang

Shiyu Zhang

Si Er Han

Jun Song Wang

Shi Wan Zhao

Jiang Wu

Qian Jin

Zhengkui Wang

Lei Yao

Lei Yan

Yun Yang

Wei Yin

Doh-Suk Kim

Lin Hou

Li Jia

Haigang Wang

Shifeng Peng

Guochu Chen

Rui Wang

Ting Yuan

Lijun Mu

Meng Deng

Chenglong Wang

Jiangbo Wang

Jianguo Yao

Teng Ye

Haidong Wang

Zhen Duo Liu

Wenqiang Tian

Bing Bing Du

Kai Kang

Zhongxing Yu

Chao Yuan

Xin Feng Zhu

Yingchun Liu

Xiong Zhang

Xiaofang Li

A transceiver circuit includes a first interface and a second interface that are connected to an optical transceiver device, a receiver circuit, a transmitter circuit, and a compensation circuit. The receiver circuit includes a differential amplifier, where a first phase input terminal of the differential amplifier is coupled to the first interface, and a second phase input terminal of the differential amplifier is coupled to the second interface. The transmitter circuit includes a first transistor, where a terminal of the first transistor is coupled to the second phase input terminal, and another terminal of the first transistor is coupled to a ground terminal. The compensation circuit is configured to provide a leakage path for the first phase input terminal, or provide a compensation current for the second phase input terminal.

Transceiver circuit, and chip and terminal device that use transceiver circuit

A Bluetooth module in an elevator system in the field of elevator intelligent control technologies. The Bluetooth module according to the present invention is arranged substantially corresponding to a mounting hole of a first physical button/second physical button of the elevator system, such that a Bluetooth signal broadcast by the Bluetooth module can be propagated from at least part of the mounting hole to a landing zone/the interior of an elevator car. The first physical button is a physical button arranged on an elevator call panel assembly in the landing zone of the elevator system. The second physical button is a physical button arranged on an elevator call panel assembly of the elevator car of the elevator system. Embodiments can be easily implemented by transforming the existing elevator system and can achieve good coverage of Bluetooth signals in the landing zone and/or the interior of the elevator car.

Bluetooth module of elevator system

An authorization management and authorization request of an elevator service request pertaining to the technical field of elevator management. The system for authorization management of the elevator service request includes a wireless signal device and an authorization management device, the wireless signal device being used for broadcasting an elevator identifier of a corresponding elevator system; the system for authorization management obtains the elevator identifier broadcasted by the wireless signal device through a personal mobile terminal; the authorization management device is used to receive authorization request information from the personal mobile terminal, the authorization request information containing a terminal identifier of the personal mobile terminal and the elevator identifier of the corresponding elevator system obtained by the personal mobile terminal.

Authorization management and authorization request of elevator service request

The present disclosure relates to split screen methods and apparatuses. One example method includes displaying a first interface of a first application on a display, where the first interface includes a first control. A first operation input by a user is detected. Prompt information is displayed in response to the detected first operation, where the prompt information is used to prompt that the first control supports split screen. A second operation input by the user on the first control is detected. A second interface is displayed in response to the detected second operation, where the second interface includes a first window and a second window. A third interface corresponding to the first interface is displayed in the first window, and a second control corresponding to the first control is displayed in the second window.

Split screen method and apparatus, and electronic device

Provided are a wireless signal apparatus and an elevator service request system and method, which belong to the field of intelligent elevator control technologies. In the elevator service request system of the present invention, a corresponding wireless signal is broadcast by a wireless signal apparatus of an elevator system and the wireless signal is received by a personal mobile terminal. The personal mobile terminal is provided with an elevator service request application component running at an application layer of an operating system thereof. The wireless signal apparatus includes a location notification unit used for broadcasting corresponding location marker data. The elevator service request system includes a wake-up module running at a system layer of the operating system of the personal mobile terminal. The wake-up module is used for waking up the elevator service request application component in response to reception of the location marker data.

Wireless signal device, system and method for elevator service request

A method for transmitting a signal, and an apparatus, a storage medium, and a user terminal are provided. The method includes: determining a plurality of baseband signals of Component Carriers (CC); selecting a plurality of phase rotation factors and recording a number of times of selection by adding one each time of selection; determining a candidate signal and a Peak to Average Power Ratio (PAPR) of the candidate signal, wherein in response to the PAPR being greater than or equal to a preset threshold and the number of times of selections not reaching a preset number of times, reselecting phase rotation factors and re-determining another candidate signal and a PAPR of the another candidate signal, until a PAPR is less than the preset threshold or the number of times of selections reaches the preset number of times; and transmitting the candidate signal.

Signal transmitting method and apparatus, storage medium, and user terminal

The present disclosure relates to a user equipment, a centralized unit device, a wireless communication method and a storage medium. The user equipment of the present disclosure comprises a processing circuit, wherein the processing circuit is configured to receive, from a centralized unit (CU) device, selection information related to a selection made by a distributed unit (DU) device; and determine, according to the selection information, a DU device for providing a service for the user equipment. By using the user equipment, the centralized unit device, the wireless communication method and the storage medium of the present disclosure, the user equipment can quickly and accurately find the most suitable DU device with the help of the CU device.

User equipment, centralized unit device, wireless communication method and storage medium

Provided are a display substrate motherboard and manufacturing method thereof, a display substrate and a display apparatus. The display substrate motherboard includes a substrate, a display substrate area on the substrate, and a mark area on the periphery of the display substrate area. The display substrate motherboard also includes a thin film transistor disposed in the display substrate area, a mark structure disposed in the mark area and a planarization layer disposed on one side of the thin film transistor away from the substrate, and the planarization layer includes a groove which is disposed at the corresponding position of the mark structure and extends along a direction close to the substrate, and an orthographic projection of the groove on the substrate covers an orthographic projection of the mark structure on the substrate.

Display substrate motherboard and manufacturing method thereof, display substrate and display apparatus

Methods and systems for monitoring an elevator communication module fault, and elevator systems. The method for monitoring an elevator communication module fault includes acquiring a feedback result in response to sending requests from one or more client ends to the elevator communication module, the elevator communication module being provided for having near-field wireless communication with a client end; counting the number of request failures in the feedback result within a pre-set duration; judging whether the countered number of request failures is not less than a pre-set threshold, and if yes, determining that the elevator communication module has a fault. The invention can quickly and efficiently detect the elevator communication module that has failed, improve elevator passengers' experience, and ensure that the elevator is in excellent operation condition and has a reliable safety performance.

Method and system for monitoring failure of elevator communication module, and elevator

A method and an apparatus for carrier frequency-offset determination and a storage medium are provided. The method includes the following. A first carrier initial frequency-offset is obtained according to a pilot time interval and a pilot phase difference of a first carrier. A second carrier frequency-offset is obtained according to a carrier frequency-ratio of a second carrier to the first carrier and the first carrier initial frequency-offset. A first carrier frequency-offset is obtained according to the first carrier initial frequency-offset.

Method and apparatus for carrier frequency-offset determination and storage medium

An authorization management and authorization request for an elevator service request, and belongs to the technical field of elevator management. An authorization management system for an elevator service request includes a wireless signal device and an authorization management device; wherein the authorization management system performs the following by a personal mobile terminal entering the coverage of the wireless signal: acquiring an elevator identifier in the wireless signal if the wireless signal is scanned, determining whether to have a corresponding elevator service request authority based on the elevator identifier and the stored authorization configuration information, and if not, providing an input component for the passenger to input an instruction of confirming to make authorization request on the personal mobile terminal, and generating authorization request information based on the instruction input by the passenger; wherein the authorization management device is used for receiving the authorization request information.

Systems and techniques for determining an idle timeout for a cloud computing session are described. An example technique includes determining a first one or more attributes associated with a user of the cloud computing session and determining a second one or more attributes associated with an operation of the cloud computing session. An idle timeout for the cloud computing session is determined, based at least in part on the first one or more attributes and the second one or more attributes. User activity is monitored during the cloud computing session. Upon determining, based on the monitoring, an absence of the activity of the user within a duration of the idle timeout, the cloud computing session is terminated.

Adjusting idle timeout for a session

Communication for an elevator service request in the field of elevator technologies. A wireless signal device for broadcasting a wireless signal according to the present invention is capable of communicating with an elevator controller of an elevator system, establishing a wireless connection with a personal mobile terminal based on the wireless signal, receiving an elevator service request command from the personal mobile terminal, and sending the received elevator service request command to the elevator controller for elevator service control. The wireless signal device comprises: an elevator service request command responding unit configured to generate an elevator service request command data packet that has been responded to according to the elevator service request command that has been received; and a broadcasting unit configured to broadcast the elevator service request command data packet that has been responded to.

Communication for elevator service request

Some disclosed teleconferencing methods may involve detecting a howl state during a teleconference. The teleconference may involve two or more teleconference client locations and a teleconference server. The teleconference server may be configured for providing full-duplex audio connectivity between the teleconference client locations. The howl state may be a state of acoustic feedback involving two or more teleconference devices in a teleconference client location. Detecting the howl state may involve an analysis of both spectral and temporal characteristics of teleconference audio data. Some disclosed teleconferencing methods may involve determining which client location is causing the howl state. Some such methods may involve mitigating the howl state and/or sending a howl state detection message.

Howl detection in conference systems

A Bluetooth communication method and device, and storage medium and terminal are provided. The method includes: generating a frame to be transmitted, wherein the frame to be transmitted comprises at least a Preamble, an Access Code, a Header, an Enhanced Data Rate Payload and a Trailer, wherein a configuration mode of the Preamble is consistent with a configuration mode of a Preamble in an LE frame, a configuration mode of the Header, the Enhanced Data Rate Payload and the Trailer are consistent with configuration modes of corresponding parts in an EDR frame, a configuration mode of the Access Code is consistent with a configuration mode of an Access Code in the LE frame and a configuration mode of an Access Code in the EDR frame; and generating and transmitting the frame to be transmitted by a modulation mode of the EDR frame and a Symbol Rate of the LE frame.

Bluetooth communication method and device, and storage medium and terminal

Growing community of inventors

Beijing, China

Kai Lin Li