Alibaba Group Holding Limited

Huawei Technologies Co., Limited

Zte Corporation

Jie Su

Kaili Lv

Zheng Zhang

Zengguang Liu

Jian Deng

Chaofeng Meng

Jun Tang

Bingyang Hua

Ligang Yu

Songlin Zhu

Dan Geng

Wei Xu

Tong Zhu

Chao Feng Meng

Shizhe Li

Jidong Xu

Jing Chang

Jianxin Lu

Jinsong Bei

Chunjian Li

Dong Shi

Zian He

Junqing Luo

Huaibin Yuan

Bing Yang Hua

Huai-Bin Yuan

Fanfan Liu

Senjun Chen

Laibin Qiu

Caicheng Lin

A data access method performed by a processing device is disclosed. The processing device manages a storage device based on a log-structured file system (LFS), where the processing device writes a target file to the storage device based on an out place update (OPU) mechanism; and the processing device writes file attribute information corresponding to the target file in the storage device to out of band (OOB) data of the storage device, to restore, after abnormal power-off, access to the target file by using the file attribute information stored in the OOB data. In this way, when writing the target file to the storage device, the processing device may write a file attribute corresponding to the target file to the OOB data, so that after abnormal power-off, access to the target file may be restored by using the file attribute information.

Data access method and apparatus

A terminal protective case and an audio playback system, the case including a housing, a diaphragm, a piezoelectric sheet, and a drive circuit. The housing has a main body part and a fastening frame part, a side of the fastening frame part is fastened to a periphery of the main body part, the fastening frame part and the main body part jointly enclose an accommodating groove configured to accommodate a terminal. The diaphragm is within the main body part, the piezoelectric sheet is fastened to the diaphragm, a front cavity is on a side of the diaphragm, a sound outlet hole is disposed on the main body part, and the sound outlet hole connects the front cavity to the outside of the main body part. The drive circuit is within the main body part and connected to the piezoelectric sheet, and is configured to drive the piezoelectric sheet.

Terminal protective case and audio playback system

An audio transmission method includes: a second device sends noise energy data on the second device end and transmission efficiency data to a first device; the first device determines a first bit rate based on the noise energy data, and determines a second bit rate based on the transmission efficiency data; the first device encodes an audio stream based on a lower bit rate of the first bit rate and the second bit rate to obtain audio data; the first device sends the audio data obtained by encoding to the second device.

Audio transmission method and electronic device

An electronic device includes a main body, a display disposed on the main body, and a sound-making assembly. The sound-making assembly includes a speaker box and a driving diaphragm located in the speaker box, the speaker box is disposed inside the main body or is formed using the main body and the display, where the main body includes a speaker grille corresponding to the speaker box, the driving diaphragm is fastened inside the speaker box and divides the speaker box into two sub-chambers, the speaker grille is coupled to one of the two sub-chambers, the driving diaphragm vibrates after receiving an audio signal, the driving diaphragm drives, through vibration of the driving diaphragm, air in the two sub-chambers to vibrate to make a sound, and the sound is propagated through the speaker grille.

Vibration and sound-making apparatus and electronic device

A method uses web servers to promulgate information from one server to another, instead of promulgating the information by the user to each server individually. A first server receives a first request for promulgating web-information from a user, locally promulgates the web-information, and sends a second request to at least one second website server to instruct the second website server to locally promulgate the web-information. The selection of the second server is done according to a preset configuration file which includes a relationship mapping between the first website server and the second website server. The relationship mapping may provide the user information related to the second website server based on the user information related to the first website server. The present disclosure further discloses a communication apparatus and a communication system.

Promulgating information on websites using servers

Calculating a value of a website visitor includes initializing a calculation model for calculating the value of the website visitor, the calculation model being a neural network model with visitor information as an input and the visitor's value as an output; training the calculation model by using a data sample and determining the calculation model; and obtaining the visitor information, and calculating the value of the visitor by using the determined calculation model.

Method and system for calculating value of website visitor

The disclosure provides a method and a system for detecting a fiber fault in a Passive Optical Network (PON). The system comprises an optical path detection device, a Wavelength Division Multiplexing (WDM) coupler, a wavelength selection coupler, a branch fiber selector and a wavelength selection router. The detection system is attached to an original PON system, without influencing the operation of the original system while performing the detection. With the disclosure, the problem of being unable to determine whether there is a fault in a branch fiber due to the loss of an optical path detection reflection signal is solved, the branch fiber with a fault can be quickly located and fixed, thus the operational and maintenance costs of an operator are reduced.

Method and system for detecting fiber fault in passive optical network

A method for amplifying and dynamically adjusting an optical signal is provided in the present invention, which includes: a first optical tap splitting out a small part of the optical signal, which is converted into an electric signal via a first optical detector and is then output to a high speed gain control circuit, in proportion from an uplink burst optical signal, and outputting a remainder of the optical signal to an optical amplifier; the high speed gain control circuit dynamically adjusting the control signal loaded on the optical amplifier according to the input electric signal which varies with uplink burst slots; and the optical amplifier dynamically adjusting a gain value according to the loaded control signal to make peak powers of the output uplink optical signals in different burst slots equal, thus achieving output power equalization.

Method and apparatus for amplifying and dynamically adjusting optical signal

A wavelength division multiplexer is provided by the present invention, which implements the wavelength division multiplexing and de-multiplexing of the optical signals in the basic and upgrade bands by reasonably arranging the filters and selecting the spectral properties of the filters, so that the existing time division multiplexing passive optical network (TDM-PON) can transmit the next generation passive optical network (NG-PON) simultaneously and the existing TDM-PON can be smoothly upgraded to the NG-PON, meanwhile, it provides the deployed TDM-PON with the subsequent network compatibility. The wavelength division multiplexer provided in the present invention can meet the high isolation requirement of the optical signals in working band with low cost, and takes both the isolation requirement and the optical network insertion loss requirement into account, thus it has high reliability, is easy to use and for system upgrade.

Wavelength division multiplexer compatible with two types of passive optical networks

The present disclosure introduces a technique for achieving the optimal time to launch or withdraw products on a webpage. In one aspect, a method includes: storing information to be collected from a webpage for one or more items corresponding to a first product; collecting data related to the one or more items in each time section of a plurality of time sections; calculating a respective value score for each time section of the plurality of time sections based on a respective number of occurrences of the one or more items in each time section; determining the optimal time to launch or withdraw the first product based on value scores of the first product for the plurality of time sections; and rendering launch or withdrawal of the first product on the webpage in the optimal time. Implementation of the technique will conveniently allow a merchant's product website to automatically complete a product launch or withdrawal in the optimal time.

System and method of optimal time for product launch an withdraw in e-commerce

A method and a system evaluate a company website's online marketing efficiency on various advertising websites by evaluating both access activities and business activities of users originating from the advertising websites. For each user visiting the company website, the method determines the originating website from which the user enters the company website, and obtains the access activities and the business activities of the user on the company website. The method quantifies the access activities and the business activities of the users who enter the present website from the same originating website to generate evaluation data corresponding to the originating website, and evaluates the company website's online marketing efficiency on the originating website based on the evaluation data of the originating website. Using the disclosed method and system, online marketing efficiency can be evaluated more comprehensively and accurately.

Evaluating online marketing efficiency

Growing community of inventors

Hangzhou, China

Jie Su