Abstract: The present application discloses a power line communication method and an electronic system and an external device using the same. The external device using the power line communication method is electrically connected to an electronic device via a transmit line and comprises: a voltage detecting module configured to detect a voltage variance of a signal voltage supplied by the electronic device; a processing module retrieving a message according to the voltage variance and processing the message to generate a message to be transmitted; and a load modulation module having a load and modulating a load value of the load according to the message to be transmitted.

Abstract: A portable Wi-Fi digital video camcorder includes a battery, a wireless network unit, an LCD unit, a video-stream capturing unit and a processing unit. The battery supplies power to the portable Wi-Fi digital video camcorder. The video-stream capturing unit captures a present video stream. The processing unit is electrically connected with the wireless network unit, the LCD unit and the video-stream capturing unit. The processing unit includes an LCD driving module and a video-stream transmitting module. The LCD driving module drives the LCD unit. The video-stream transmitting module utilizes the wireless network unit to transmit the present video stream.

Abstract: A real-time video transmission system includes a wireless video input device, a wireless data transmission interface and a computer. The computer includes a virtual camera module, a data management module and an application module. The data management module repeatedly accesses a register. The virtual camera module writes a received real-time video request into the register. When the data management module obtains the real-time video request from the register during accessing of the same, the wireless video input device is driven to film and send back a real-time video stream. The data to management module writes the received real-time video stream into the register. When the received real-time video stream is obtained from the register during accessing of the same, the virtual camera module transmits the real-time video stream to the application program module.

Abstract: Presented herein is an illuminated keyboard having: a key module having a plurality of keycaps, scissors structures, elastic members, and a membrane circuit board; a keyboard base plate having a plurality of positioning members corresponding to the keycaps and integrally formed on the keyboard base plate for positioning the keyboard module on the keyboard base plate; a light guiding plate disposed beneath the key module and over the keyboard base plate, the light guiding plate having a light incoming surface, a bottom surface intersecting the light incoming surface, a light outgoing surface opposite to the light incoming surface, and provided with light holes corresponding to the positioning members; light sources arranged on one side of the light incoming surface of the light guiding plate, wherein a light emitted from the light sources is transmitted into the light guiding plate from the light incoming surface and transmitted out of the light guiding plate from the outgoing surface; and a reflecting sheet d

Abstract: A video transmitting method with an image quality adjusting function is provided. In the method, a video stream is transmitted to a receiving terminal. A received number of frames of the video stream received by the receiving terminal in a preset period is obtained. An image quality of the video stream is adjusted according to the received number of frames.

Abstract: An electrical device with zooming function includes an image-sensing module, a display unit and a processing unit. The processing unit is electrically connected to the image-sensing module and the display unit respectively. The image-sensing module senses an image. The processing unit includes an image display module, a selecting module and a zooming-control module. The image display module makes the display unit display the sensed image. The selecting module receives a selection signal for selecting a reference point from the image displayed on the display unit. The zooming-control module makes the image-sensing module sense another image, the reference point is in the center of which, by zooming.

Abstract: A keyboard includes: a membrane circuit board comprising a plurality of switches; at least one keycap provided with a plurality of contact portions, each of which corresponding to one of the plurality of switches of the membrane circuit board; and a base plate provided with a plurality of openings each of which being positioned at a location corresponding to one of the plurality of switches of the membrane circuit board and one of the plurality of contact portions of the keycap, a buffering portion being formed at a corner adjoining the base plate and one of the plurality of openings.

Abstract: The present invention discloses a foldable mouse comprising an upper shell, a lower shell, a pivotal mechanism pivotally connecting said upper shell and said lower shell and enabling the horizontal and pivotal rotation of said upper shell with respect to said lower shell, and a cover plate covering on said upper shell.

Abstract: A keycap is disposed on the plate of a keyboard. The keycap comprises a press surface, a hollow zone, a plate connection structure, a jig connection structure. The hollow zone is set on a side of the keycap opposite to the press surface. The plate connection structure is set in the hollow zone and used for connecting to the plate. The jig connection structure is connected to the jig when the keycap in a painting processing. Moreover, a keyboard and a jig for the keycap are also provided herein.

Abstract: A self-illumination circuit board includes a double-layer substrate structure, a circuit layer embedded in the substrate structure and carrying a circuit layout, side-emitting light sources mounted in the substrate structure and electrically connected to the circuit layout for emitting light sideways, and light guide plates embedded in the substrate structure and respectively disposed adjacent to the side-emitting light sources for uniformly distributing light emitted from the side-emitting light sources over respective light exit surfaces thereof. The invention also provides a self-illumination keyboard using the self-illumination circuit board.

Abstract: A system with a wireless network device is provided. The system includes a wireless network device and an electrical device. A storage unit of the electrical device stores a wireless network profile. A second processing unit of the electrical device detects if the wireless network device is connected to the electrical device. When the wireless network device is connected to the electrical device, the second processing unit of the electrical device transmits the wireless network profile to the wireless network device. When the wireless network device obtains the wireless network profile, a first processing unit of the wireless network device drives a first wireless network unit of the wireless network device to transmit data wirelessly according to the wireless network profile. A method for processing a wireless network profile is also disclosed.

Abstract: An electrical device with zooming function includes an image-sensing module, a display unit and a processing unit. The processing unit is electrically connected to the image-sensing module and the display unit respectively. The image-sensing module senses an image. The processing unit includes an image display module, a selecting module and a zooming-control module. The image display module makes the display unit display the sensed image. The selecting module receives a selection signal for selecting a reference point from the image displayed on the display unit. The zooming-control module makes the image-sensing module sense another image, the reference point is in the center of which, by zooming.

Abstract: A digital camera with an upload function includes an image sensing module, a storage unit, a network interface controller (NIC) and a processing unit. The image sensing module senses to generate a raw datum. The NIC builds connection with a network. The processing unit compresses the raw datum into several compressed datums. The processing unit stores the compressed datums into the storage unit to be taken as several stored files. The processing unit selects a file to be transmitted from the stored files, and makes the NIC transmit the file to be transmitted through the network.

Abstract: An illumination keyboard is provided and includes a base plate, at least one tortuous circuit, a plurality of light sources, a light guide plate and a plurality of keys. The tortuous circuit is disposed on the base plate in a nonlinear arrangement. The light sources are coupled to the tortuous circuit for emitting light towards at least one direction. The light guide plate is disposed on the base plate for uniformizing the light emitted by the light sources. The keys are disposed on the light guide plate and located in a keys area of the base plate. Each key has a light pervious region through which the light penetrates through the key. The tortuous circuit is not overlapped with the light pervious regions.

Abstract: A system with storage device includes a storage device and an electrical device. The storage device includes a storage unit, at least one hotkey and a first hot plug interface. The at least one hotkey generates a control instruction corresponding to the at least one hotkey when operated. The control instruction is written to a block for storing instructions of the storage unit. The electrical device includes a second hot plug interface and a processing unit. The storage device builds connection with the electrical device through the first hot plug interface and the second hot plug interface when the first hot plug interface is electrically connected with the second hot plug interface. The processing unit makes the second hot plug interface obtain the control instruction from the block for storing instructions of the storage unit through the first hot plug interface. The processing unit executes the control instruction.

Abstract: A portable Wi-Fi digital video camcorder includes a battery, a wireless network unit, an LCD unit, a video-stream capturing unit and a processing unit. The battery supplies power to the portable Wi-Fi digital video camcorder. The video-stream capturing unit captures a present video stream. The processing unit is electrically connected with the wireless network unit, the LCD unit and the video-stream capturing unit. The processing unit includes an LCD driving module and a video-stream transmitting module. The LCD driving module drives the LCD unit. The video-stream transmitting module utilizes the wireless network unit to transmit the present video stream.

Abstract: A keyboard includes: a membrane circuit board comprising a plurality of switches; at least one keycap provided with a plurality of contact portions, each of which corresponding to one of the plurality of switches of the membrane circuit board; and a base plate provided with a plurality of openings each of which being positioned at a location corresponding to one of the plurality of switches of the membrane circuit board and one of the plurality of contact portions of the keycap, a buffering portion being formed at a corner adjoining the base plate and one of the plurality of openings.

Abstract: An actuation device having a shape memory alloy component containing: a base having a bottom portion, at least one first magnetic component disposed under the bottom portion of base, a carrier having a top portion, at least one second magnetic component which is disposed on the top portion of carrier and which corresponds in location to the first magnetic component, and a shape memory alloy component which is disposed between the base and the carrier. Shape memory alloy component has at least one deformable supporting component, which is disposed at a position corresponding to both positions of the first magnetic component and of the second magnetic component, for supporting the carrier. The supporting component is in a horizontal form between the base and the carrier since there is a magnetic force between the first magnetic component and the second magnetic component.

Abstract: Disclosed herein is an illuminated keyboard comprising: a key module having a plurality of keycaps, scissors structures, elastic members, and a membrane circuit board; a keyboard base plate having a plurality of positioning members corresponding to the keycaps and integrally formed on the keyboard base plate for positioning the keyboard module on the keyboard base plate; a light guiding plate disposed beneath the key module and over the keyboard base plate, the light guiding plate having a light incoming surface, a bottom surface intersecting the light incoming surface, a light outgoing surface opposite to the light incoming surface, and provided with light holes corresponding to the positioning members; light sources arranged on one side of, the light incoming surface of the light guiding plate, wherein a light emitted from the light sources is transmitted into the light guiding plate from the light incoming surface and transmitted out of the light guiding plate from the outgoing surface; and a reflecting sh