Abstract: An impedance sensor and an electronic apparatus using the same are provided. The impedance sensor includes an impedance-bridge circuit, a compensation circuit, and a signal processing circuit. The impedance-bridge circuit has an input side and an output side, and configured to generate a first impedance variation in response to a physical pressure. The compensation circuit is coupled to the input side of the impedance-bridge circuit in parallel, and configured to generate a second impedance variation in response to an environment temperature. The signal processing circuit respectively detects the first and the second impedance variations, and accordingly generates a first sensing signal indicating the first impedance variation and a second sensing signal indicating the second impedance variation, so as to compensate a temperature shift part of the first sensing signal by the second sensing signal and accordingly generate a pressure detection signal.

Abstract: A measuring device includes a first body, a second body slidably combined with the first body, a first pressure sensing component, and a control unit. The first body is for supporting a cup receiving liquid. The first pressure sensing component is disposed between the first body and the second body for sensing weight of the cup and the liquid and generating a signal corresponding to the weight. The control unit is electrically connected to the first pressure sensing component. The control unit determines a volume variation of the liquid according to a weight variation of the cup and the liquid calculated based on a difference between signals transmitted from the first pressure sensing component at different time points.

Abstract: A method of cleaning post-etch residues on a copper line includes providing a copper line which is divided into a first region and a second region. A dielectric layer is formed on the copper line. After that, the dielectric layer is etched to form openings in the dielectric layer. A number of openings within the first region is more than a number of openings in the second region. During the etching process, a potential difference is formed between the first region and the second region of the copper line. Finally, the dielectric layer and the copper line are cleaned by a solution with a PH value. The PH value has a special relation with the potential difference.

Abstract: A system for actively detecting an alternating current (AC) load includes a first power interface, a second power interface, a switch unit, and a control unit. The first power interface is coupled to an AC source to receive and provide an AC voltage. The second power interface is configured to be coupled to an electronic equipment to provide the AC source to the electronic equipment and provide a connection signal according to whether the electronic equipment is coupled to the second power interface. The switch unit is coupled between the first power interface and the second power interface and receives a switch signal to determine whether the AC voltage is transmitted to the second power interface. The control unit is coupled to the second power interface and the switch unit to provide the switch signal according to the connection signal.

Abstract: An omnidirectional LED lamp includes a heat sink installed at the top of a lampholder, a first photoelectric unit installed at the bottom of the lampholder, a second photoelectric unit installed at the top of the lampholder, and a power supply module mounted on the lampholder and electrically coupled to the first photoelectric unit and the second photoelectric unit, and the power supply module converts an external power into a rated direct current for turning on the first and second photoelectric units. With the light irradiation of the first and second photoelectric units, an omnidirectional lighting effect that projects light upwardly and downwardly from the lampholder is achieved.

Abstract: A protective case is configured to receive and protect an electronic device with an audio interface. The protective case includes an audio jack aligning with the audio interface of the electronic device, an earphone connected to an earphone wire, a circuit board, a plurality of contacts set in the audio jack and connected to the earphone wire via the circuit board, and an audio connector. The audio connector includes a base and a connection-peg. The base includes a plurality of metal contacts, and each metal contact corresponds to one contact. The connection-peg is electrically connected to the plurality of metal contacts. When the connection-peg is inserted into the audio interface of the electronic device via the audio jack, the plurality of the contacts are correspondingly and electrically connected to the plurality of the metal contacts, and the electronic device is electrically connected to the earphone.

Abstract: A computing device includes a base member, an input device attached to the base member and a display member connected to the base member. A sensor is attached to the base member and a controller adjusts input sensitivity of the input device when the sensor detects an object close to the display member.

Abstract: An impedance sensor and an electronic apparatus using the same are provided. The impedance sensor includes an impedance-bridge circuit, a compensation circuit, and a signal processing circuit. The impedance-bridge circuit has an input side and an output side, and configured to generate a first impedance variation in response to a physical pressure. The compensation circuit is coupled to the input side of the impedance-bridge circuit in parallel, and configured to generate a second impedance variation in response to an environment temperature. The signal processing circuit respectively detects the first and the second impedance variations, and accordingly generates a first sensing signal indicating the first impedance variation and a second sensing signal indicating the second impedance variation, so as to compensate a temperature shift part of the first sensing signal by the second sensing signal and accordingly generate a pressure detection signal.

Abstract: A keyboard device includes a flexible layer, electrical traces on the flexible layer and a lattice substrate to support the flexible layer. The keyboard device further includes a key actuatable to contact the flexible layer and to stretch at least a portion of the flexible layer into an opening in the lattice substrate and a sensor to detect a change of capacitance of the electrical traces in response to actuation of the key by a conductive object.

Abstract: A support device includes a main body and two supporting arms. The main body is configured to support an electronic device. The main body defines a slot. The slot is configured to allow lights to pass through when a camera of the electronic device captures an image. Two supporting arms are coupled to the main body. The two supporting arms are configured to form a first predetermined angle with the main body and are positioned at the first predetermined angle. The two supporting arms are configured to contact a surface to form three supporting points when the two supporting arms are arranged on the surface, solely supporting the main body and the electronic device above the surface. The three supporting points on the surface is distributed in a shape of a surface.

Abstract: A winder includes a case including a base, a winding device positioned on the base for winding or releasing the wire, a braking device located between the winding device and the base, and a loading board positioned on the winding device. The braking device includes a ratchet and a pawl positioned aside the ratchet. The winding device, the ratchet and the loading board can rotate together relative to the base. When the pawl is coupled to the ratchet, rotation of the winding device drives the ratchet and the loading board to rotate along a first direction, for releasing the wire from the winding device. When the pawl is detached from the ratchet, the winding device rotates along a second direction counter to the first direction and drives the ratchet and the loading board to rotate along the second direction, for winding the wire to the winding device.

Abstract: An assistance device includes a main body, a first permanent magnet, a second permanent magnet, a coil, and a supporting arm. The main body can be configured to support an electronic device. The main body defines a receiving space. The first permanent magnet and the second permanent magnet are fixed in the receiving space. The second permanent magnet and the first permanent magnet cooperatively form a magnetic field. The coil is rotatably received in the receiving space. The supporting arm is fixed to the coil and rotatably coupled to the main body. The supporting arm is steady with respect to the surface when the main body is rotated with respect to the surface. The first permanent magnet and the second permanent magnet rotate with respect to the coil. The coil generates power for the electronic device at the coil goes through the magnetic field.

Abstract: A loudspeaker which is capable of attaching to an accessory of an electronic device. The loudspeaker includes a first panel; a second panel; a third panel; a fourth panel; a fifth panel; a sixth panel, wherein the first panel, the second panel, the third panel, the fourth panel, the fifth panel, and the sixth panel are each made of paper material and portray graphics in virtual three-dimensional. A first horn is attached on the inner side of the first panel and a second horn is attached on the inner side of the second panel.

Abstract: Disclosed is the use of fluorinated cyclic dinucleotides and pharmaceutically acceptable salts thereof as an adjuvant for the preparation of an oral vaccine. Further disclosed is the use of fluorinated cyclic dinucleotides and pharmaceutically acceptable salts thereof for enhancing the immune response to an orally administered vaccine.

Abstract: A protective case for an electronic device includes a PCB and other components and devices. The other components and devices arranged on the case are connected to the PCB, the devices include a battery, a socket configured to accommodate a wireless communication device, a data connector, a wireless communication module, and a control module. The control module controls the battery to charge the electronic device and activates the wireless communication module to connect to the electronic device through the data connector, if the data connector is in use. The wireless communication module is controlled to communicate with the wireless communication device if the wireless communication device is removed from the socket and the battery is controlled to supply power to the wireless communication device if the wireless communication device is inserted into the socket.

Abstract: Examples disclosed herein provide a portable computing device with a kickstand, The portable computing device can have a display housing including a display surface and a back surface opposite the display surface. The portable computing device can have the kickstand rotatably connected to the display housing on two sidewalls of the display housing. The kickstand can support the display housing in a plurality of viewing angles.

Abstract: A protection case for protecting an electronic device includes a cover body shaped to receive and hold to the electronic device. A cable winding apparatus is arranged adjacent the cover body and includes a wheel rotatably arranged adjacent the cover body, and a pivot protruding from a center of the wheel and configured to wind a cable of an earphone. A through hole is arranged on a side wall of the pivot and configured to permit a first end of the earphone, which connects to a jack, to pass through.

Abstract: A protective case for an electronic device includes a PCB and other components and devices. The other components and devices arranged on the case are connected to the PCB, the devices include a battery, a socket configured to accommodate a wireless communication device, a data connector, a wireless communication module, and a control module. The control module controls the battery to charge the electronic device and activates the wireless communication module to connect to the electronic device through the data connector, if the data connector is in use. The wireless communication module is controlled to communicate with the wireless communication device if the wireless communication device is removed from the socket and the battery is controlled to supply power to the wireless communication device if the wireless communication device is inserted into the socket.