Huawei Technologies Co., Limited

Zte Corporation

Cisco Systems Inc.

Bgi Shenzhen

Shenzhen Topway Video Communication Co., Ltd.

Academy of Broadcasting Planning, Sarft

Topvision Technologies Co., Ltd.

Jiangshan Xu

John T Chapman

Guangsheng Wu

Mingyue Wang

Liang Wu

Zhifan Sheng

Lili Sun

Biduo Chen

Shijie Ouyang

Zhenwei Li

Chuanyu Liu

Yanlong Qin

Yue Yuan

Longqi Liu

Yanming Ren

Zhouchun Shang

A method for constructing a library of cell-free DNAs in body fluids, comprising directly acting a transposase or an endonuclease on a body fluid sample, fragmenting the cell-free DNAs within, and performing amplification to obtain a library. Also provided is a test kit using the present method for prenatal diagnosis or early detection of cancer.

Method for constructing library of cell-free DNAs in body fluids and application thereof

The present invention provides a cable TV broadband access system with distributed deployment and centralized control, which comprises: a system terminal end, configured to receive and transmit uplink and downlink service data, and receive and respond to access control data and management control data; a system access end, configured to implement data format transformation and data forwarding or processing for said uplink and downlink service data, said access control data and said management control data of said system terminal end, and transmit, receive and respond to management control data of said system access end; a system head end, configured to implement management control and access control for said system access end and said system terminal end, and process, converge and forward said uplink and downlink service data. Said system uses a system architecture with three-stage distributed deployment and centralized control comprising a system terminal end, a system access end and a system head end, and it can not only realize the end-to-end control management and QoS priority assurance of the broadband data service, but can also realize easy network deployment, low comprehensive cost and high management efficiency.

Cable TV network broadband access system with distributed deployment and centralized control

Growing community of inventors

Shenzhen, China

Jiangshan Xu