Abstract: An expandable Ethernet power supply device includes a network line, a power sourcing equipment (PSE), a DC power inputting terminal and a power outputting terminal. A PoE outputting port is inserted into network equipment. An Ethernet connector is connected to a network data source. A DC power is inputted to the DC power inputting terminal and managed by the PSE, and then providing demanded working voltage of the network equipment and transmitting network data. The power outputting terminal is provided for connecting to the DC power inputting terminal of another Ethernet power supply device and demanded working voltage of more network equipment.

Abstract: A cable television device with high frequency impedance matching includes a housing and a removable collar. The removable collar is disposed on a signal inputting port or a signal outputting port of the housing and a cable wire is connected to the signal inputting port or a signal outputting port. When a high frequency is inputted, the impedance of the removable collar is substantially close to the impedance of the cable wire to reduce the reflected amount of the transmitting signal and the attenuation of the transmitting high frequency signal.

Abstract: An RF directional coupler circuit assembly for matching high frequency cable TV apparatus includes a cover body, and a printed circuit board. The cover body includes a space. The space includes a bottom surface. An RF directional coupler circuit is arranged on the printed circuit board. A 0.01 mm˜2 mm gap is formed between the RF directional coupler circuit and the bottom surface when the printed circuit board is deposited in the space. The distance between the printed circuit board and the cover body is shorten because of the gap, so that the reflections of the high frequency signals and the signal fading are decreasing to achieve matching high frequency impedance characteristics.

Abstract: A baseband Ethernet extender includes a first transmission device and a second transmission device. The first transmission device and the second transmission devices form therein at least one first baseband Ethernet connection unit and at least one second baseband Ethernet connection unit, respectively. The second baseband Ethernet connection unit is electrically connected through at least one twisted pair cable assembly to the first baseband Ethernet connection unit. Each twisted pair cable constituting the twisted pair cable assembly is electrically connected, at least at one end thereof, to a baseband signal compensation unit. Such an arrangement allows an Ethernet baseband signal to be transmitted to a distance exceeding 100 meters.

Abstract: A keyboard includes a casing, a retaining frame, and a keyboard module. The casing is made from a metallic sheet and has upper and lower parts. The lower part is bent from front and rear ends of the upper part so as to define a gap between the upper and lower parts and two opposite side openings. The casing is formed with a central hole extending through the upper part and in spatial communication with the gap and the side openings. The retaining frame is received detachably in the gap of the casing, has a loop-shaped frame body disposed around the central hole of the casing, and is insertable through one of the side openings of the casing into the gap of the casing. The keyboard module is received in the central hole of the casing and engages the frame body of the retaining frame in a tongue-and-groove engaging manner.

Abstract: An apparatus uses at least two coaxial cables to transmit network baseband signals, particularly Ethernet baseband signals. The apparatus includes a first transmission device and a second transmission device. The first transmission device includes a first conversion module that is capable of transmitting and receiving Ethernet baseband signals. The second transmission device includes a second conversion module that is capable of transmitting Ethernet baseband signals to the first conversion module and receiving Ethernet baseband signals from the first conversion module. The first and second conversion modules are connected through at least two coaxial cables for transmission of Ethernet baseband signals. Through transmission of network baseband signals through coaxial cables, the advantages of reducing costs and maintaining high efficiency of transmission can be realized.

Abstract: A liquid crystal display (LCD) including an LCD panel and a back light module is provided. The back light module is disposed below the LCD panel. The back light module includes a planar light source, a reflective polarized light enhancement film, a first prism film and a ?/4 phase retardation film. The planar light source is disposed below the LCD panel, while the reflective polarized light enhancement film is disposed between the LCD panel and the planar light source. The first prism film is disposed between the reflective polarized light enhancement film and the planar light source. Besides, the ?/4 phase retardation film is disposed between the reflective polarized light enhancement film and the first prism film. The back light module has a relatively high light utilization rate, and the LCD has favorable display luminance.

Abstract: The Ethernet extension system contains at least a signal and power conversion device, a conversion device, and a coaxial cable connected in between. The signal and power conversion device receives baseband network signal and electricity in accordance with PoE, and delivers the baseband network signal and electricity to the conversion device through the coaxial cable. The conversion device then provides the baseband network signal to an ordinary Ethernet network device. Baseband network signal and electricity as such could be delivered through a coaxial cable beyond the conventional Ethernet without additional configuration of power supplies or power sources, and without repeatedly modulation and demodulation, coding and decoding, or conversion of communication protocols.

Abstract: A keyboard includes a casing, a retaining frame, and a keyboard module. The casing is made from a metallic sheet and has upper and lower parts. The lower part is bent from front and rear ends of the upper part so as to define a gap between the upper and lower parts and two opposite side openings. The casing is formed with a central hole extending through the upper part and in spatial communication with the gap and the side openings. The retaining frame is received detachably in the gap of the casing, has a loop-shaped frame body disposed around the central hole of the casing, and is insertable through one of the side openings of the casing into the gap of the casing. The keyboard module is received in the central hole of the casing and engages the frame body of the retaining frame in a tongue-and-groove engaging manner.

Abstract: An active matrix substrate is provided. The active matrix substrate includes a substrate, scan lines, data lines, pixel units, and connecting lines. The scan lines, data lines, pixel units, and connecting lines are all disposed over the substrate. The pixel unit includes an active component, a first pixel electrode, a second pixel electrode, and a third pixel electrode. The active components are electrically connected with the scan lines and data lines. The first pixel electrode and the second pixel electrode are disposed at the two opposite sides of the scan line, and electrically connected with the active component. The third pixel electrode is electrically insulated from the active component. In the pixel units arranged in a same column, each of the third pixel electrodes is electrically connected with the second pixel electrode controlled by a previous scan line through the corresponding connecting line.

Abstract: A circuit board assembly includes a printed circuit board having a board substrate, a transmission member having a flexible substrate, and an elastic clamping frame. The elastic clamping frame is in the form of a single piece and includes upper and lower walls and press protrusions protruding from one of the upper and lower walls. A stack of a connecting portion of the flexible substrate and a connecting portion of the board substrate is tightly disposed between the upper and lower walls such that each of the conductive fingers of the transmission member and a corresponding one of the conductive fingers of the printed circuit board are pressed against each other by the pressing action of the press protrusions.

Abstract: A radio tuning device through a cable includes an emitter and receivers. The emitter can be embedded in a wall and includes first tuning units. Each receiver is an advanced TV tuner to replace an original TV tuner; as a digital broadcast TV received by an original TV set through the TV tuner, an analog or digital TV from cables, and even an interactive digital TV are received through cables or wirelessly. Each receiver further contains a second tuning unit which can be combined with various computer interfaces or displayer interfaces, e.g. USB, PCMCIA, DVI, VGA or HDMI. The first and second tuning units are applied to a digital or analog interface, and are very highly compatible. Accordingly, the cable TV can be watched by wireless transmission without cabling in a room, which is pretty, saves time and labor work and allows cable channels to be watched on the computers.

Abstract: A food processor includes a control unit that is operable in accordance with an initial control signal from a switch unit so as to activate a motor unit to operate in a sequence of an initial judgment mode and a food processing mode. The control unit switches operation of the motor unit from the initial judgment mode to the food processing mode upon determining a first target rotary speed in accordance with a motor rotation signal generated by a sensor unit for indicating a rotary speed of the motor unit during operation of the motor unit in the initial judgment mode so as to drive rotation of a cutting blade unit provided in a container to process food items contained in the container. The control unit activates the motor unit to rotate at a second target rotary speed associated with the first target rotary speed during operation of the motor unit in the food processing mode.

Abstract: An auto switch system and method thereof for IP phones and default audio devices. The system may automatically switch voice output of an information apparatus between the IP phone and the audio device according to IP phone usage. Thus, inconvenience caused by the IP phone being set as the default output is overcome. Furthermore, users need not change the settings when using IP phones.

Abstract: A liquid crystal display (LCD) including an LCD panel and a back light module is provided. The back light module is disposed below the LCD panel. The back light module includes a planar light source, a reflective polarized light enhancement film, a first prism film and a ?/4 phase retardation film. The planar light source is disposed below the LCD panel, while the reflective polarized light enhancement film is disposed between the LCD panel and the planar light source. The first prism film is disposed between the reflective polarized light enhancement film and the planar light source. Besides, the ?/4 phase retardation film is disposed between the reflective polarized light enhancement film and the first prism film. The back light module has a relatively high light utilization rate, and the LCD has favorable display luminance.

Abstract: The present invention is a self-seeded laser diode. The laser diode obtains a gain by itself without using expansive erbium-doped fiber amplifiers. Hence, the cost is reduced and the system is simplified.

Abstract: A multi-domain vertical alignment (MVA) liquid crystal display panel including an active device array substrate, an opposite substrate and a liquid crystal layer is provided. The active device array substrate has a plurality of pixel electrodes and a plurality of auxiliary electrodes, wherein each pixel electrodes has at least a slit and each auxiliary electrode is disposed corresponding to the slit. The opposite substrate is disposed above the active device array substrate and the opposite substrate has a common electrode disposed between the active device array substrate and the opposite substrate. The liquid crystal layer is disposed between the active device array substrate and the opposite substrate. The above-mentioned multi-domain vertical alignment liquid crystal display panel has high aperture ratio and rapid response.

Abstract: A method for fast activation and playing of multimedia data with a non-fixed data storage media, such as compact disk, is provided. The storage media, pre-installed with an operating system, is used to activate the computer. Then the media player connected to the computer is detected, and a device driver for the detected media player and a corresponding media playing application in the storage media are executed. The process further includes establishing a RAM disk area in the RAM of the computer for the space required by executing the operating system, device driver for the media player, and the media playing application programs.

Abstract: An active matrix substrate is provided. The active matrix substrate includes a substrate, scan lines, data lines, pixel units, and connecting lines. The scan lines, data lines, pixel units, and connecting lines are all disposed over the substrate. The pixel unit includes an active component, a first pixel electrode, a second pixel electrode, and a third pixel electrode. The active components are electrically connected with the scan lines and data lines. The first pixel electrode and the second pixel electrode are disposed at the two opposite sides of the scan line, and electrically connected with the active component. The third pixel electrode is electrically insulated from the active component. In the pixel units arranged in a same column, each of the third pixel electrodes is electrically connected with the second pixel electrode controlled by a previous scan line through the corresponding connecting line.