Abstract: A media stream sharing method and terminal, where the method includes, after a first terminal receives a start instruction triggered by a user to start a service of sharing audio and video, searching for, according to the start instruction, a terminal capable of implementing sharing of a media stream with the first terminal, and displaying the found terminal or terminal list; when the first terminal determines that a terminal selected by a user according to the displayed terminal or terminal list is a second terminal, obtaining a playing attribute of the second terminal; and synchronizing, by the first terminal according to the playing attribute, a media stream currently played to the second terminal, causing the second terminal to decode and play the media stream. The method solves problems of audio and video asynchronization, operational complexity, and high costs during media stream sharing in the prior art.

Abstract: A housing of an electronic device includes a bottom cover and a front panel detachably secured to the bottom cover. The bottom cover includes at least one first sidewall and a locking portion perpendicularly set on the at least one first sidewall. The front panel includes a fixing portion and a blocking portion adjacent to the fixing portion and spaced from the locking portion. The fixing portion defines a through hole for receiving the locking portion. The fixing portion and the blocking portion abut opposite sides of the at least one first sidewall for preventing the at least one first sidewall from leaving a gap between the at least one first wall and the locking portion.

Abstract: A printed circuit board structure comprises a base layer, an insulation layer, and a signal layer sandwiched between the base layer and the insulation layer. The insulation layer includes a plurality of conductive regions. The conductive regions are used for providing a current reflowing path. Each of the conductive regions comprises a plurality of empty regions which are spaced from each other. A space inside the empty region is substantially hollow, and spaces between adjacent empty region are filled with cooper.

Abstract: A user behavior analysis (UBA) method, and a related device and system are provided. The method is applied to a UBA system including at least one UBA cloud server. The method includes: receiving, by a UBA cloud server, a network content identifier reported by a first UBA subnode, where the network content identifier cannot be identified by the first UBA subnode; acquiring network content corresponding to the network content identifier; extracting a keyword from the network content; updating a behavior knowledge base by using the extracted keyword; and delivering, by the UBA cloud server, the updated behavior knowledge base or updated content of the behavior knowledge base to a UBA subnode set, where the UBA subnode set at least includes the first UBA subnode and a second UBA subnode. The UBA cloud server and the UBA subnodes are associated with a telecommunication network.

Abstract: A cable electrical connector assembly includes an electrical connector, a cable soldered with the electrical connector, and an insulative body. The electrical connector includes a printed circuit board having a number of conductive pads, two of the conductive pads forming a differential signal pair for differential signal transmission. The cable has a number of core wires soldered with the conductive pads. The insulative body encloses a soldering area of the conductive pads and the cable core wires. The insulative body has a slot between the two conductive pads of the differential signal pair, the slot running through the insulative body along an up-to-down direction. The slot improves impedance in the soldering area of the core wires and the conductive pads.

Abstract: A printed circuit board (PCB) includes an edge-component welded to the edge, which includes a plurality of pins. The PCB includes a base board and at least one slot set at edges of the base board. The pins are plugged into the base board through the at least one slot, the at least one slot is set right below the pins, and the position of the at least one slot is designed without copper pouring. In production, copper foil in the at least one slot is cut off, preventing the pins from touching the copper foil on the base board.

Abstract: An electronic device includes a casing with plurality of openings, a printed circuit board (PCB), a heat radiation member, and a conductive member. The PCB with at least one heating element and a plurality of connectors is received in the casing. The heat radiation member is mounted on the PCB and received in the casing. The conductive member is connected with the connectors and the heat radiation member. The connectors correspond to the openings in a one-to-one relationship. Each of the connectors is partly inserted into the corresponding openings. The heat radiation member conducts the heat generated by the heating element to the connectors for dissipating the heat to the outside of the electronic device through the corresponding openings.

Abstract: An infrared emitting diode driving circuit includes a first resistor includes a first terminal and a second terminal, a second resistor, and a transistor with the emitter grounded via the second resistor. The circuit further includes an infrared emitting diode with the anode connected to a power source and the cathode connected to the collector of the transistor. A control chip of the circuit turns the transistor on and off. The control chip is connected to a first terminal of the first resistor. The circuit further includes a voltage clamping unit to clamp voltage at the base of the transistor to a fixed value. One end of the voltage clamping unit is connected to the second terminal of the first resistor and the base of the transistor, and another end of the voltage clamping unit is grounded.

Abstract: An infrared control method is configured to remotely control a plurality of terminals via a remote control of an electronic device. The electronic device includes a first communication unit, a second communication unit, a storage unit storing an ID code of each terminal. The method includes the following steps. Obtaining a remote signal from the remote control received via the first communication unit and decoding the obtained remote signal. In addition, an ID code of a currently controlled terminal is obtained from the storage unit and then a control signal recognizable by the currently controlled terminal according to the decoded remote signal and the ID code of the currently controlled terminal is generated. Then, the generated control signal is sent to the currently controlled terminal via the second communication unit to direct the determined terminal to take an action.

Abstract: A printed circuit board structure comprises a base layer, an insulation layer, and a signal layer sandwiched between the base layer and the insulation layer. The insulation layer includes a plurality of conductive regions. The conductive regions are used for providing a current reflowing path. Each of the conductive regions comprises a plurality of empty regions which are spaced from each other. A space inside the empty region is substantially hollow, and spaces between adjacent empty region are filled with cooper.

Abstract: An exemplary electronic device includes a housing, a display unit, a fixing assembly, and a battery. The fixing assembly is arranged in the housing and defines an opening. The fixing assembly further includes a main body and a resisting member. The display unit is arranged on the main body. The resisting member protrudes from a side of the opening and extends toward the opening. The base of the resisting member is flush with the main body. The battery is fixed below the fixing assembly and opposite to the opening. The resisting member and the display unit via the opening resist the battery.

Abstract: An electronic device comprises a control unit, a power supply, a switch unit, a driving unit, and an illumination unit. The control unit generates a pulse width modulation (PWM) signal with a first level signal and a second level signal. The switch unit establishes a connection between the power supply and the driving unit or cuts off the connection in response to the PWM signal. The driving unit generates a variable driving voltage. The illumination unit emits light when the variable driving voltage is more than a first predetermine value, and the brightness of the illumination unit is gradually changed in response to the variable driving voltage.

Abstract: A printed circuit board module includes a first printed circuit board defining a plurality of front conductive pads formed on a top surface thereof and arranged along a transversal direction, and a second printed circuit board located on and welded to the first printed circuit board, the second printed board defining a plurality of first contacts formed on a top surface thereof for mating with a complementary connector.

Abstract: An electronic device connected to a power supply comprises a load, an protection module, and an indicating circuit. The protection module is connected between the power supply and the load, and is capable of establishing a connection between the power supply and the load or cutting off the connection. The indicating circuit connected to the power supply and the protection module is capable of outputting different indicating information based on different states of the protection module. When the protection module establishes the connection between the power supply and the load, the indicating circuit outputs first indicating information. When the protection module cuts off the connection between the power supply and the load, the indicating circuit outputs second indicating information.

Abstract: A terminal comprises an upper arm having a top surface for a mating area; a lower arm paralleled with the upper arm and having a bottom surface soldering area; and a connecting arm connected with the upper arm and the lower arm.

Abstract: A locking structure includes a hook disposed on a first object and engagable with a locking member disposed on a second object. The locking member includes a main body rotatable about an axis thereof and a number of locking portions radially protruding from the main body. When the main body rotates about the axis, the locking portions rotate together with the main body to engage with and disengage from the hook to lock the first object to and unlock the first object from the second object.

Abstract: A card edge connector for receiving a card which is rotatably assembled includes an insulative housing, a plurality of terminals and a pair of metal pieces. The insulative housing has a inserted slot for receiving the card and a key within the inserted slot for anti-mismating of the card. The terminals are arranged in a single row and located at one side of the inserted slot. Each terminal includes a solder portion extending out of the insulative housing and a contacting portion projecting into the inserted slot. The metal pieces locate at the other side of the inserted slot, each of which includes a mounting portion and an abutting portion projecting into the inserted slot. The terminals are arranged in a single row for reducing the height of the card edge connector.

Abstract: A data mining method, apparatus, and system are provided.

Abstract: A measuring device for measuring the torque of a torsion spring, includes a base, an electronic scale secured to the base, a supporting plate fixed to the base, and a holding mechanism slidably secured to the supporting plate. The holding mechanism includes a screw slidably secured to the supporting plate, two nuts engaging with the screw and arranged at opposite sides of the screw, and a holding portion for holding the torsion spring. The nuts are operated to adjust the height of the screw relative to the supporting plate, to drive the torsion spring to depress the electronic scale. The electronic scale displays a weight value for calculating the torque of the torsion spring when depressed by the torsion spring.

Abstract: An exemplary portable electronic device includes a bottom cover, a top cover, an electronic module, and elastic washers. The top cover engages with the bottom cover to define a space therebetween. The electronic module is received in the space. Poles protrude up from the bottom cover. The elastic washers are fixed on the electronic module. A through hole is defined in each of the washers. The poles respectively extend through the through holes of the washers, and opposite ends of each of the washers respectively elastically abut the top cover and the bottom cover.