Zte Corporation

Huawei Technologies Co., Limited

Jian Guo

Liang Liang Fan

Bo Yuan

Kun Wang

Xi Yu

Er Nie

Chengxu Zhu

This application provides a data processing method, a device, and a data transmission system. The method includes: A first device determines a first mode from a plurality of error detection and correction modes based on an obtained first status parameter of a data link. Then, the first device may indicate a second device to use the first mode for encoding, the first device may use the first mode for decoding, thereby implementing error detection and correction of transmitted data. In the method provided in this embodiment of this application, the first device and the second device may support a plurality of error detection and correction modes, and the first device may determine a used error detection and correction mode based on a status parameter of the data link.

Data processing method and device, and data transmission system

Provided are a circuit and method for adjusting the frequency band of an antenna, and an electronic device. The circuit includes: an antenna signal main feed-point connected to a radio frequency link; an antenna signal ground feed-point connected to a ground terminal; and a tuning device. The tuning device is electrically connected to the antenna signal main feed-point and/or the antenna signal ground feed-point, and is configured to adjust a resonance of a frequency in a radio frequency signal. The tuning device comprises a switch group and a tuning element.

Circuit and method for adjusting frequency band of antenna, and electronic device

Disclosed is a rotary USB interface device, which includes: a USB module (), a PCB, a rotary shaft () connecting the USB module and the PCB, a conductive layer () connected with the rotary shaft, and an insulation layer () provided between a grounding layer () on the PCB and the conductive layer. The USB module contains a first ground wire, which forms a first grounding path of the USB module, together with the rotary shaft and the conductive layer. The grounding layer on the PCB forms a second grounding path. The first grounding path is separated from the second grounding path by virtue of the insulation layer, i.e. the grounding path of the PCB is separated from the grounding path of the USB module. Thus, an open circuit voltage is formed, the voltage difference is maintained stable, the overall device obtains a stable grounding signal, the grounding performance is enhanced and the transmitting/receiving performance of the device is improved.

Rotary USB interface device with capacitive coupling

A method and apparatus for backing up user information are disclosed. The method includes: establishing a plurality of selection switch protocol groups between a same port of a standby service node and ports of a plurality of main service nodes respectively; the standby service node regularly receiving user information of access users from the ports of the plurality of main service nodes, and storing the user information to a main control unit of the standby service node; keeping a detection relation between the same port of the standby service node and the ports of the plurality of main service nodes; the standby service node sending to an interface unit of the standby service node the user information of the access user of that port stored in the main control unit, and according to the selection switch protocol, switching the same port of the standby service node to be main.

Growing community of inventors

Shenzhen, China

Jian Guo