Hon Hai Precision Industry Co., Ltd.

Hong-Fu Jin Precision Industry (Shenzhen) Co., Ltd.

Huawei Technologies Co., Limited

Bin Du

Wen-Rong Chen

Hui Li

Cong Huang

Jun Ding

Dahe Kou

A speaker includes a frame, a magnet, a diaphragm, a first coil, and a second coil assembly. The second coil assembly includes at least one second coil group, and each second coil group includes two second coils. The magnet and the diaphragm are mounted on the frame. The first coil and each second coil are coupled to the diaphragm. The first coil is configured to drive the diaphragm to vibrate. The second coil assembly is configured to, when the diaphragm vibrates and a difference between vibration displacements of two vibration regions in the diaphragm that are correspondingly coupled to two second coils in any second coil group exceeds a preset threshold, drive at least one of the two vibration regions to move to reduce the difference between the vibration displacements of the two vibration regions.

Speaker unit, speaker, terminal, and speaker control method

A portable electronic device includes a main body, a flip cover, and a hinge assembly. The flip cover is rotatably fixed on the main body via the hinge assembly. The hinge assembly includes a sensing module, a hinge mechanism, and a microcontroller. The sensing module is configured to detect control signals. The hinge mechanism is configured to control an angle between the flip cover and the main body. The microcontroller is electrically connected to the sensing module. The microcontroller receives the control signals from the sensing module, and controls the hinge mechanism to rotate to a specified angle according to the control signals. The angle between the flip cover and the main body is automatically adjusted correspondingly.

Flip-type portable electronic device with automatic open angle adjusting function

A support stand includes a first support assembly, a second support assembly, a first connecting assembly connecting one end of the first support assembly and the second support assembly. A second connecting assembly connects the other ends of the first support assembly and the second support assembly. The first support assembly includes two first support mechanisms, each first support mechanism includes a main body, and a first support rod hinged on the main body in a first direction. When the first support rods rotate around the first direction to a back side of the support stand, the first connecting assembly and the second connecting assembly are tilted by the first support rods and the second support assembly.

Support stand for electronic device

A support stand includes a base; two support rods rotatably mounted to the base; a positioning rod retained on the base, the positioning rod can remain in a bent state after being bent by itself; and a support board removably positioned above the base by the corporation of the support rods and the positioning rod.

Support stand for supporting electronic device

Supporter for portable electronic device

A method and apparatus for reducing crosstalk between digital subscriber lines includes: firstly, determining a parameter of VDSL (Very-high-bit-rate Digital Subscriber Line); secondly, determining frequency range of signal to be transmitted in the line and transmitting signal in the corresponding line according to the determined frequency range. This mainly means reducing or turning off the transmitting of the signal at a high frequency band and only using low frequency band for data transmitting in the case that the line parameter exceeds the predetermined threshold, so that crosstalk to neighboring lines is reduced. The present invention can effectively overcome the crosstalk against neighboring lines during the channel discovery phase of digital subscriber line and the transfer performance of the digital subscriber line in operation can be guaranteed. The present invention is realized based on the established standard, so the present invention is simple and easy to implement.

Growing community of inventors

Shenzhen, China

Bin Du