Abstract: A membrane switch device includes first and second membrane layers, a spacing layer between the membrane layers, and a flexible printed circuit board. The first membrane layer includes a first surface and first conductive wires on the first surface and extending to a first wire area to form first contact pads. The second membrane layer includes a second surface and second conductive wires on the second surface and extending to a second wire area to form second contact pads. A wire-connecting end of the flexible printed circuit board is between the first membrane layer and the second membrane layer. A first protection layer of the flexible printed circuit board and the first contact pads are not overlapped with each other, and a second protection layer of the flexible printed circuit board and the second contact pads are not overlapped with each other.

Abstract: An optical membrane switch device includes a first membrane layer, a second membrane layer, and a spacer layer. The first membrane layer includes a first surface and light input lines. The light input lines are disposed on the first surface. Each light input line is slantingly extended with first branch lines. The second membrane layer includes a second surface and light output lines. The light output lines are disposed on the second surface. Each light output line is slantingly extended with second branch lines. The second branch lines respectively extend to the corresponding first branch lines to form contact regions. The spacer layer is clamped between the first membrane layer and the second membrane layer and includes through holes respectively corresponding to the contact regions. The first and second branch lines corresponding to the through holes at least partially overlap each other and keep a preset interval from each other.

Abstract: A heating-cooling module is disposed on an electronic component and includes a heat-dissipation element, a first thermal conductive layer, a heater, and a second thermal conductive layer. The heat-dissipation element is arranged over the electronic component. The first thermal conductive layer is arranged between the electronic component and the heat-dissipation element. The heater is arranged over the electronic component, in which the heater and the heat-dissipation element are located above the same side of the electronic component, and the heater and the heat-dissipation element are separated from each other. The second thermal conductive layer is arranged between the electronic component and the heater and is separated from the first thermal conductive layer.

Abstract: A doorbell conversion device includes a power input terminal, a power output terminal, two doorbell trigger terminals, a power conversion unit, and a trigger signal unit. The power conversion unit is coupled between the power input terminal and the power output terminal for generating a sensing signal in response to an electric potential of the power output terminal. While the electric potential of the power output terminal is grounded, the power input terminal and the power output terminal are disconnected. In contrast, the power input terminal and the power output terminal are connected. The trigger signal unit is coupled between the power conversion unit and the two doorbell trigger terminals for controlling the two doorbell trigger terminals to be opened or shorted based upon the sensing signal. While the electric potential of the power output terminal is grounded, the two doorbell trigger terminals are shorted. In contrast, they are opened.

Abstract: An image capturing device having a power reset function includes a fixed base and a camera. The fixed base has a first assembly portion, and the first assembly portion is provided with a first magnetic member. The camera includes a housing, a circuit board, and a magnetic reset switch electrically connected to the circuit board. The housing has a second assembly portion, and the second assembly portion is provided with a second magnetic member. The second magnetic member and the first magnetic member are configured to be magnetically attracted to each other such that the second assembly portion is correspondingly assembled and disposed on the first assembly portion. The circuit board is disposed inside the housing. The magnetic reset switch is disposed inside the housing and is distant from the second assembly portion.

Abstract: A composite speaker module includes a vibration damper sheet, a first sound guide assembly, a first speaker driver, a second sound guide assembly, and a second speaker driver. The vibration damper sheet includes a first surface and a second surface opposite to the first surface. The first sound guide assembly includes a first sound guide and a first bracket. The first sound guide disposed on the first surface. The first bracket is connected to the first sound guide and extends away from the vibration damper sheet. The first speaker driver is disposed on the first bracket. The second sound guide assembly includes a second sound guide and a second bracket. The second sound guide disposed on the second surface. The second bracket is connected to the second sound guide and extends along a direction away from the vibration damper sheet. The second speaker driver is disposed on the second bracket.

Abstract: A key device includes a substrate having an assembling area, a keycap, and a restoring member. A pivot coupling member and an elastic arm are provided in the assembling area. The pivot coupling member has a pivot axis, and the elastic arm is extending in a direction parallel to the pivot axis. The elastic arm includes a limiting member protruding out of the substrate. The keycap is disposed above the assembling area. A connection arm is extending from the keycap and includes a pivot portion pivoted with the pivot coupling member, so that the keycap is swingable relative to the substrate. The keycap further includes a limiting groove for detachably fitted with the limiting member. The restoring member is disposed between the substrate and the keycap. The restoring member is adapted to provide a restoring force for swinging the keycap relative to the substrate.

Abstract: A keyboard includes a base plate, a keycap, and at least one balance assembly. The base plate has a plurality of connecting structures. The keycap is above the base plate. The balance assembly includes a balance bar and two silencing members. The balance bar is between the base plate and the keycap and is engaged with the keycap. The silencing members are connected to the balance bar and engaged with the connecting structures. The balance assembly is configured to guide the keycap to move relative to the base plate. Hardnesses of the base plate and the balance bar are greater than a hardness of the silencing members.

Abstract: A sound receiving device and a noise signal generating method thereof are disclosed. A linear voltage regulator module of the sound receiving device receives a power signal for converting into a first current signal. A microphone is used to receive an external audio signal. A digital modulation module receives the first current signal so as to process the external audio signal to become a digital audio signal. After the linear voltage regulator module receives a control signal, the first current signal is stopped, and the power signal is transmitted through a current limiting resistor to generate a second current signal to the digital modulation module, so that the digital modulation module generates and output a noise signal, wherein an amperage of the second current signal is less than an amperage of the first current signal and is not enough to normally drive the digital modulation module.

Abstract: A cursor generation system includes a digital pen and a computer device. The digital pen includes recognition information, a first wireless communication module, and a displacement sensor. The first wireless communication module is for transmitting a mating request signal, the recognition information, and the displacement information. The computer device includes a cursor application, a processer, a second wireless communication module, and a display. The second wireless communication module mates with the first wireless communication module to receive the recognition information and the displacement information. The processer executes the cursor application corresponding to the recognition information to register a vendor-defined usage page associated with the digital pen.

Abstract: A wireless communication device and an antenna control method thereof are disclosed. The wireless communication device has a plurality of antennas, a received signal strength indicator detecting module and a control module. The wireless communication device signally communicates with an AP-router via the plurality of antennas. The received signal strength indicator detecting module individually detects a received signal strength indicator of each antenna and the AP-router. The control module assigns the antenna with the strongest received signal strength indicator among the plurality of antennas to be the main data transmission antenna and switches off at least one of the others of the plurality of antennas.

Abstract: A keyswitch device includes a circuit board, a fixing bracket, a micro switch, a keycap, and a connecting assembly. The circuit board has a first surface and a second surface opposite to the first surface. The fixing bracket includes a main body and a first hook. The main body abuts against the first surface. The first hook is connected to the main body and fixed to the circuit board. The micro switch passes through the main body, and is disposed on the circuit board and configured to generate a pressing signal to the circuit board while being pressed. The keycap is supported on the micro switch and configured to press the micro switch toward the circuit board. The connecting assembly is connected between the fixing bracket and the keycap and configured to guide the keycap to move upward and downward relative to the circuit board.

Abstract: An around-view camera device includes a camera body, two around-view lenses, and a counterweight piece. The camera body includes two openings, a casing, and a circuit board, where the two openings are respectively provided on two opposite sides of the casing, and the circuit board is disposed within the casing. The two around-view lenses are respectively accommodated within the two openings of the camera body and are separately electrically connected to the circuit board. The counterweight piece is disposed on a side, different from sides of the two around-view lenses, of the casing or the circuit board far away from a center of gravity of the camera body.

Abstract: A keyswitch device includes a base plate, a membrane circuit board, a light source, and a keyswitch assembly. The membrane circuit board is disposed on the base plate and includes a reflective film layer, a transmissive film layer, and a light guide spacer. The reflective film layer is located on the base plate. The transmissive film layer is located over the reflective film layer. The light guide spacer has an accommodating space. The reflective film layer and the transmissive film layer are respectively located at opposite sides of the light guide spacer. The light source is disposed between the reflective film layer and the transmissive film layer and located in the accommodating space. The keyswitch assembly is disposed on the membrane circuit board.

Abstract: An electronic device and a transmission method thereof are disclosed. The transmission method includes the following steps: establishing a virtual private network (VPN) and establishing an initial routing table corresponding to the virtual private network; receiving a packet and obtaining a network destination of the packet; determining whether the network destination is directed to a host located in an internal network; and transmitting the packet directly according to a first process or revising the initial routing table to generate an updated routing table and then transmitting the packet according to the updated routing table if it is determined that the network destination is not directed to the host located in the internal network. Thus, the electronic device is allowed to automatically select the suitable routing path depending on operating situations.

Abstract: A protective case includes a housing, a base, and a connecting piece. A supporting groove is openly formed on one surface of the base for engaging a lateral edge of the housing. The connecting piece is soft and flexible. The connecting piece has two opposite end portions and a middle section disposed between the two end portions. The two end portions are connected to the housing and the base respectively, and the middle section is disposed in a removably detachable manner. Therefore, the supporting groove supports the housing to stand on the base, and the connecting piece can fix the housing to prevent toppling.

Abstract: A keyswitch device includes a bottom plate, a membrane circuit board, a keyswitch assembly, and at least one spacer structure. The membrane circuit board is located over the bottom plate and has a trigger zone. The membrane circuit board is configured to generate a trigger signal when the trigger zone is pressed. The keyswitch assembly is disposed over the membrane circuit board and configured to press the trigger zone. The spacer structure is disposed between the bottom plate and the membrane circuit board and substantially aligned with the peripheral edge of the trigger zone. The spacer structure is configured to separate the bottom plate and the membrane circuit board by a distance.

Abstract: A key device includes a bottom plate, a light guiding membrane switch, and a keycap. The light guiding membrane switch is disposed on the bottom plate and includes a lower membrane layer, an upper membrane layer, a light guiding spacing layer, a reflective layer, and an adhering layer. The upper membrane layer is disposed above the lower membrane layer and farther from the bottom plate than the lower membrane layer. The light guiding spacing layer is disposed between the lower membrane layer and the upper membrane layer and includes opposite upper and lower surfaces. The reflective layer is securely fastened on the upper surface. The adhering layer is adhered between the reflective layer and the upper membrane layer, and a position and a shape of the adhering layer correspond to a position and a shape of the reflective layer.

Abstract: A flexible printed circuit board of a light guide module and a cut-out structure thereof. The flexible printed circuit board is made by cutting an FPC material and is formed after folding and unfolding. The flexible printed circuit board includes two light emitting plates and an extension strip. The two light emitting plates each has a connection portion. The extension strip is integrally connected between the two connection portions. Two ends of the two light emitting plates and the extension strip have two fold lines respectively, so that the extension strip is disposed between the two light emitting plates along an extension direction to separate the two light emitting plates away from each other.

Abstract: A keyboard lifting structure includes a base, a cover frame covering the base and providing multiple openings, key caps coupled to the base by respective linking mechanisms, driving devices disposed in the base at one side relative to the respective key caps with respective slides thereof respectively abutted against the linking mechanisms of the key caps, and a lifting mechanism disposed between the cover frame and the base for lifting or lowering the cover frame relative to the base and simultaneously causing the driving devices to move the key caps upwardly out of the cover frame or downwardly into the inside of the respective openings of the cover frame.