Abstract: A circuit comparing method includes the following operations: detecting several connection relationships between all starting points and all ending points corresponding to all starting points of a first circuit diagram; detecting several connection relationships between all starting points and all ending points corresponding to all starting points of a second circuit diagram; determining at least one difference between several connection relationships of the first circuit diagram and several connection relationships of the second circuit diagram; and outputting the at least one difference.

Abstract: A dual band antenna module including a first radiator, a second radiator, a first filter and a second filter is provided. The first radiator resonates to generate a first frequency band and includes a first feeding end and a first ground end. The second radiator resonates to generate a second frequency band and includes a second feeding end and a second ground end. The first filter is extended from the first feeding end in a direction away from the first radiator and used for filtering the second frequency band. The second filter is extended from the second feeding end in a direction away from the second radiator and used for filtering the first frequency band.

Abstract: A control method of a portable electronic device (PED) includes following steps. A trigger event is received. Next, an accelerator detects a first behavior of the PED and produces a first signal. If the first signal satisfies a first preset condition, the accelerator detects a second behavior of the PED and produces a second signal. If the second signal satisfies a second preset condition, the PED performs an action.

Abstract: A power over Ethernet device is provided. The power over Ethernet device includes a first Ethernet connector, an Ethernet transformer circuit, and a detection circuit. The first Ethernet connector is coupled to a second Ethernet connector of a network device via an Ethernet cable and has a first reserve pin and a second reserve pin. The Ethernet transformer circuit is coupled to the first Ethernet connector to provide a supply voltage to the Ethernet cable to transfer the supply voltage to the network device. The detection circuit receives the supply voltage and is coupled to the Ethernet transformer circuit, the first reserve pin, and the second reserve pin to provide a reference voltage to the first reserve pin and receives an identification voltage from the second reserve pin to determine whether the network device is a powered device.

Abstract: The application discloses a data analysis system and a data analysis method. The data analysis system includes a data provider host and a data analysis host. The data provider host is configured to perform a stream cipher algorithm based on raw data to obtain first data. The data analysis host is configured to perform a data analysis based on the first data to obtain an analysis result. The data provider host or the data analysis host is further configured to perform a block cipher algorithm based on the analysis result to obtain second data, and send the second data to an external device. The data provider host is further configured to calculate an attribute-value correspondence between the raw data and the second data, and send the attribute-value correspondence to the external device.

Abstract: The present disclosure provides a modem and a communication method. The modem includes a processor. The processor scans a first network channel of a plurality of network channels provided by the modem. The processor enters an idle scan time period and performs a packet forwarding operation during the idle scan period upon completion of scanning the first network channel. The processor scans a second network channel of the plurality of the network channels after the scanning idle period.

Abstract: The present disclosure provides a cable modem and an operating method thereof. This method includes steps as follows. After receiving a boot command, it is checked whether a boot data of a main storage area of a flash memory is complete. When the boot data of the main storage area of the flash memory is not complete, a backup data is copied from a backup storage area to overwrite the boot data of the main storage area. Then, the boot data in the main storage area is used to continue the boot process.

Abstract: A control key assembly including a button cover and a weight member is provided. The button cover has a first top surface, a bottom surface and a first assembling structure, wherein the first assembling structure is located on the bottom surface. The weight member has an arc surface and a second assembling structure, the arc surface and the second assembling structure are located on opposite sides of the weight member, wherein the second assembling structure is assembled with the first assembling structure, and the weight of the weight member is greater than the weight of the button cover.

Abstract: An antenna structure includes a first antenna, a second antenna, a third antenna, and a first grounding portion. The first antenna and the second antenna operate at a first frequency. The first antenna is disposed side by side with the second antenna, and the first antenna and the second antenna are orthogonally polarized. The third antenna operates at a second frequency, and the second frequency is lower than the first frequency. The first grounding portion includes a first side edge and a second side edge opposite to each other. The first antenna and the second antenna are connected to the first side edge and the third antenna is connected to the second side edge. An electronic device includes the said antenna structure.

Abstract: A docking station is provided, including a base, a pair of support frames, two pairs of antennas, a pair of first connecting ports, and a communication chip. The support frames, the first connecting ports, and the communication chip are all disposed on the base. The support frames can rotate relative to the base, the antennas are disposed in the support frames to receive a wireless signal, and the pair of first connecting ports is individually movably disposed on both opposite sides of the base and far away from or close to each other along a length direction of the base. The communication chip is disposed on the base, is coupled to the antennas, and is configured to process the wireless signal.

Abstract: A connector includes a base, a transmission interface, a shielding cover and a shielding layer. The base includes a slot. The transmission interface includes a clamping portion and a plugboard. The clamping portion is clamped in the slot and a portion of the plugboard protrudes out of the base. The shielding cover has an accommodation space and a shielding layer. The accommodation space is disposed to accommodate the base and the transmission interface, and the shielding layer is electroplated on an inner side surface of the shielding cover. The shielding cover covers the base and the transmission interface and is disposed to block electromagnetic waves generated by the transmission interface.

Abstract: An optical fiber connector configured for engaging with an external optical fiber connector includes a fiber core, a connector body, a coupling tube, and at least one coupling holder. The connector body has a first end portion and a second end portion, and the first end portion connects and fixes the fiber core. The second end portion is depressed inwardly to define a coupling space, and the external optical fiber connector is detachably plugged into the coupling space and coupled with the fiber core. The coupling tube is disposed in the connector body, and a portion of the coupling tube is located in the coupling space. One end portion of the fiber core is inserted in the coupling tube. The coupling holder is disposed in the coupling space, and corresponding to the coupling tube.

Abstract: A circuit board module for being assembled to a case is provided. The circuit board module includes an electronic connector and a circuit board. The electronic connector is fixed to the circuit board. The circuit board has at least one first slot. The at least one first slot is configured for a fixing element to pass through and for the circuit board to be assembled to a case. The size of the at least one first slot allows the fixing element to move in a direction parallel to a surface of the circuit board in the at least one first slot. An electronic device having the circuit board module is also provided.

Abstract: A control method of a portable electronic device (PED) includes following steps. A trigger event is received. Next, an accelerator detects a first behavior of the PED and produces a first signal. If the first signal satisfies a first preset condition, the accelerator detects a second behavior of the PED and produces a second signal. If the second signal satisfies a second preset condition, the PED performs an action.

Abstract: A knob device includes a lower cover assembly, an upper cover assembly, a limiting member and an annular member. The lower cover assembly includes a first stopping portion. The upper cover assembly is rotatably stacked on the lower cover assembly along an axis. The upper cover assembly has multiple fixing holes. The limiting member is located between the upper cover assembly and the lower cover assembly and fixed to the lower cover assembly. The limiting member includes a body and a second stopping portion extending from the body. The second stopping portion and first stopping portion are arranged up and down along the axis. The annular member is arranged around the body, and the annular member is rotatably arranged between the first stopping portion of the lower cover assembly and the second stopping portion. The first stopping portion and the second stopping portion limit the annular member on the axis. The annular member includes multiple pogo pins retractably protruding from an outer surface.

Abstract: A printed circuit board and a power copper surface configuration method are provided. The method includes the following steps: configuring a first power supply component, a second power supply component, a power sink component, a convergence copper surface portion, a first grounding copper surface portion and a second grounding copper surface portion; determining whether currents of the first and second power supply components flow to the power sink component through the convergence copper surface portion; when the currents of the first and second power supply components flow to the power sink component through the convergence copper surface portion, determining whether the convergence copper surface portion conforms to a current balancing design of the printed circuit board according to at least one of first and second tolerable difference values and an average current. When the convergence copper surface portion conforms to the current balancing design, the method is ended.

Abstract: A dual-band circularly polarized antenna structure includes a microstrip line, an antenna unit and a ground. The antenna unit includes a first radiator and a second radiator. The first radiator has a feed-in portion and a first spiral pattern. The first spiral pattern spirals outwardly from a starting point close to the feed-in portion. The second radiator has a first grounding portion and a second spiral pattern. The second spiral pattern spirals outwardly from a starting point close to the first grounding portion in a manner non-overlapping with the first spiral pattern. One of the first and the second radiators has a second grounding portion. The microstrip line and the antenna unit are arranged apart. The feed-in portion of the first radiator of the antenna unit is coupled to the microstrip line. The first and the second grounding portions are coupled to the ground.

Abstract: The present disclosure discloses a wall mount device adapted to be fixed to a wall surface and carry an electronic device with connecting wires. The wall mount device comprises a wall mount, a first and a second wire arrangement component. The wall mount has an upper and a lower surface. The upper surface faces the wall surface and the lower surface faces the electronic device. The first wire arrangement component is positioned on the lower surface and adjacent to a first side of the wall mount. The second wire arrangement component is positioned on the lower surface and adjacent to a second side vertical to the first side of the wall mount. The connecting wires are sequentially and detachably accommodated in the first and the second wire arrangement component from the electronic device to fix the connecting wires to corresponding positions on the wall mount.

Abstract: An electronic device includes a housing and a corner structure. The housing is provided with a corner portion and two side edges adjacent to the corner portion. The housing includes an outer surface, an inner surface parallel to the outer surface, and a side surface located at the corner portion and respectively connected to the outer surface and the inner surface, wherein the side surface is a hierarchical curved surface. The corner structure is embedded in the corner portion. The corner structure is provided with an arc-shaped side edge that is aligned with the adjacent two side edges, one side of the corner structure, which is opposite to the arc-shaped side edge, is fitted to the side surface of the housing, and the corner structure is a reinforced material structure.

Abstract: The present disclosure provides a torsion adjustment device, including a torsion receiving element, a force transmission module and an elastic force module. The torsion receiving element includes a transmission shaft coupled to a torsion mechanism. The transmission shaft is driven by a torsion applied by the torsion mechanism to rotate. The force transmission module includes a gear set and a gear turntable meshing with the gear set, and the transmission shaft is coupled to the gear set to drive the gear set to rotate by the torsion. The elastic force module includes an elastic element and a plurality of force-bearing balls. The elastic element is configured to generate an elastic force. The force-bearing balls abut between the elastic element and the gear turntable and mesh with the gear turntable. When the torsion is greater than the elastic force, the gear turntable is disengaged from the force-bearing balls and rotated.