Shanghai National Engineering Research Center of Digital Television Co., Ltd.

Other

Micronas Semiconductors, Inc.

Shanghai Jiaotong University

Qualcomm Incorporated

Zte Corporation

Tongji University

Hangzhou Sunstone Technology Co., Ltd.

Shanghai Lanke Environmental Technology Co., Ltd.

Shanghai National Engineering Research Center of Digital Teievision Co., Ltd.

Wenjun Zhang

Yunfeng Guan

Dazhi He

Ge Huang

Hongliang Xu

Guanbin Xing

Xufeng Guo

Richard W Citta

Jingsong Xia

Scott M LoPresto

Jun Sun

Yiling Xu

Yijun Shi

Ning Liu

Yin Xu

Hao Chen

Yao Wang

Yanfeng Wang

Bo Li

Hangbin Song

Ming Li

Wei Huang

Ping Wu

Lei Li

Ying Hu

Guoqiang Shang

Zhao Wu

Wenjie Zhu

Hongchun Yu

Lei Shi

Teng Li

Yanli Ma

Weijian Dai

Yang Dai

Shan Feng

Zhiqian Jiang

Hongxi Ma

Lanjun Mao

Xiangli Meng

Guohui Sun

Shichong Wang

Xuguo Tang

Lianghui Zhang

Chengzhi Wang

Honglu Chen

Chi Huang

Weiqiang Liang

Ning Zhuang

Ning Zhunag

A multiple clip applier including a fixing handle, a conveying handle, a clamping handle, a pushing mechanism, a clip tube, a clip head and a closure clip assembly is provided. The clip head is arranged at one end of the clip tube, the clip tube is provided with a loading groove. The closure clip assembly is detachably arranged in the loading groove, and the clip tube includes an outer and an inner clip tube; the conveying handle and the clamping handle are both hinged with the fixing handle; and the clamping handle is linked with the outer clip tube to control opening or closing of the clip head. The closure clip assembly includes a plurality of closure clips; and the conveying handle is linked with the pushing mechanism to move along the length direction of the inner clip tube, thereby driving the closure clips to move towards the clip head.

Multiple clip applier

An instrument and a method for simultaneously testing a molecular weight distribution and an organic nitrogen level of a water sample are provided. The instrument comprises: a tail-end injection valve, a chromatographic column, a pressure relief valve, an acid-adding injection valve, an oxygen-adding injection valve, a helical tube for an acid-oxygen reaction, a COremover, a UV digester, a second gas-water separator membrane, a buffer solution injection valve, a helical tube for a buffer solution reaction, a cadmium column, a chromogenic agent injection valve, a helical tube for a chromogenic agent reaction, and a UV detector, sequentially connected via a pipeline. The tail-end injection valve is for receiving a fluid phase and a sample. The second gas-water separator membrane is connected to an electrical conductivity-based CO2 detector. The UV detector and the electrical conductivity-based COdetector are connected to a data processing computer.

Instrument and method for simultaneously testing molecular weight distribution and organic nitrogen level of water sample

Provided are a preamble symbol receiving method and device, characterizing in that the method comprises the following steps: processing a received signal; judging whether the processed signal obtained contains the preamble symbol desired to be received; and if a judgement result is yes, determining the position of the preamble symbol and resolving signalling information carried by the preamble symbol, wherein the received preamble symbol comprises at least one time-domain symbol generated by a transmitting end using a free combination of any number of first three-segment structures and/or second three-segment structures according to a predefined generation rule, the first three-segment structure containing: a time-domain main body signal, a prefix generated based on the entirety or a portion of the time-domain main body signal, and a postfix generated based on the entirety or a portion of a partial time-domain main body signal, and the second three segment structure containing: the time domain main body signal, a prefix generated based on the entirety or a portion of the time domain main body signal, and a hyper prefix generated based on the entirety or a portion of the partial time domain main body signal.

Preamble symbol receiving method and device

Provided are a signaling coding and modulation method and a demodulation and decoding method and device, characterized in that the method comprises the steps of: extending signaling which has been subjected to first predetermined processing according to an extension pattern table to obtain an extended codeword, and conducting predetermined coding on the extended codeword to obtain a encoded codeword; conducting parity bit permutation on a parity bit portion in the encoded codeword and then splicing the permutated parity bits to the end of information bits in the encoded codeword, to obtain a permutated encoded codeword; according to the length of the signaling, punching the permutated encoded codeword according to a predetermined punching rule to obtain a punched encoded codeword; and conducting second predetermined processing on the punched encoded codeword to obtain a tuple sequence, which is used for mapping, and then mapping the tuple sequence.

Signalling coding and modulation method and demodulation and decoding method and device

An efficient ammonia desulphurization and oxidation apparatus includes a desulphurization tower, where spray layers in multiple stages and a tower reactor are sequentially arranged in the desulphurization tower; a first gas-liquid distribution plate, a second gas-liquid distribution plate, and a third gas-liquid distribution plate are sequentially arranged in the tower reactor; an ammonia distribution zone is formed between the first and second gas-liquid distribution plates, and an ammonia water distributor is further arranged between the first gas-liquid distribution plate and the second gas-liquid distribution plate in the ammonia distribution zone; an absorption zone is formed between the second and third gas-liquid distribution plates; an oxidation zone is formed between the third gas-liquid distribution plate and a bottom of the tower; in the oxidation zone, oxidizing air distributors in multiple stages are arranged at a lower side of the third gas-liquid plate.

Ammonia desulphurization and oxidation apparatus and method

A media content-based adaptive method, device and system for Forward Error Correction (FEC) coding and decoding of a systematic code, and a medium are provided. The method includes: dividing, according to the importance of media content, source data into N types of source data packets according to priorities; generating N types of intermediate codes according to the N types of source data packets and the priorities thereof; setting, according to the N types of intermediate codes, recovery data of N types of source data according to a channel condition, and generating coded symbols of N types of systematic codes; receiving the coded symbols, and arranging and sorting the coded symbols according to decoding requirements; and decoding, according to the number of received coded symbols, intermediate codewords according to different situations, and recovering the corresponding source data packets according to the intermediate codewords.

Media content-based adaptive method, device and system for forward error correction (FEC) coding and decoding of systematic code, and medium

An interleaving and mapping method and a deinterleaving and demapping method for an LDPC codeword are provided. The interleaving and mapping method comprises: performing first bit interleaving on a parity bits part of the LDPC codeword to obtain interleaved parity bits; splicing an information bit part of the codeword and the interleaved parity bits into a codeword after the first bit interleaving; dividing the codeword after the first bit interleaving into multiple consecutive bit subblocks in a predetermined length, and changing the order of the bit subblocks according to a corresponding permutation order (bit-swapping pattern) to form a codeword after second bit interleaving; dividing the codeword after the second bit interleaving into two parts, and writing the two parts into storage space in a column order respectively and reading the two parts from the storage space in a row order respectively to obtain a codeword after third bit interleaving.

Interleaving and mapping method and deinterleaving and demapping method for LDPC codeword

Signaling coding and modulation method and demodulation and decoding method and device

The present disclosure discloses a method for synchronously pushing a multimedia resource based on a heterogeneous network. The method includes: step 1: obtaining, by a server, end-to-end broadband network delay information or broadband network delay and available bandwidth information of different users; step 2: after receiving a client request, calculating, by the server according to the end-to-end broadband network delay information or the broadband network delay and available bandwidth information of the different users, a moment at which the multimedia resource can be synchronously presented; and step 3: sending, by the server, the multimedia resource after the moment at which the multimedia resource can be synchronously presented, and synchronously playing, by a client, content according to a start presentation time of the multimedia resource, so that broadband content of the different users can be synchronously presented.

Multimedia resource synchronous pushing method based on heterogeneous network

The present disclosure provides a method and a system for personalized presentation of a multimedia content assembly, including: presenting, on a server, by using a presentation mode in which one or more presentation layers superimpose, a media content component, and sending signaling information for describing a presentation layer layout to a client; presenting, on the client, a multimedia content assembly in a personalized manner according to the signaling information of the presentation layer. In the present disclosure, a content provider can instruct a user to perform combination presentation on multi-channel content at a client device vendor, and adjust a layout by a reduced update instruction. In addition, the present disclosure provides a media service applicable to a case in which terminal devices are different and user needs are different.

Method and system for personalized presentation of multimedia content assembly

Provided are a preamble symbol generation method and receiving method, and a relevant frequency-domain symbol generation method and a relevant device, characterized in that the method comprises: generating a cyclic prefix according to a partial time-domain main body signal truncated from a time-domain main body signal; generating a modulation signal based on a portion or the entirety of the partial time-domain main body signal; and generating time-domain symbols based on at least one of the cyclic prefix, the time-domain main body signal and the modulation signal, wherein the preamble symbol contains at least one of the time-domain symbols. Therefore, using the entirety or a portion of a certain length of a time-domain main body signal as a prefix, it is possible to implement coherent detection, which solves the issues of performance degradation with non-coherent detection and differential decoding failure under complex frequency selective fading channels; and generating a modulation signal as a postfix based on the entirety or a portion of the above truncated time-domain main body signal enables the generated preamble symbol to have sound fractional frequency offset estimation performance and timing synchronization performance.

Preamble symbol generation and receiving method, and frequency-domain symbol generation method and device

Provided are a preamble symbol generation method and receiving method, and a relevant frequency-domain symbol generation method and relevant device. The generated preamble symbol contains: a time-domain symbol with a first three-segment structure; or a time-domain symbol with a second three-segment structure; or a free combination of several time-domain symbols with the first three-segment structure and/or several time-domain symbols with the second three-segment structure arranged in any order. Using the entirety or a portion of a certain length of a time-domain main body signal as a prefix, it is possible to perform coherent detection, which solves the issues of performance degradation with non-coherent detection and differential decoding failure under complex frequency selective fading channels, and generating a postfix or hyper prefix based on the truncation of the entirety or a portion of the time-domain main body signal would enable the generated preamble symbol to have sound fractional frequency offset estimation performance and timing synchronization performance.

Growing community of inventors

Shanghai, China

Wenjun Zhang