Abstract: Embodiments related to an undervoltage detector are described and depicted. An undervoltage detector is formed to detect a low input bias voltage with a voltage divider network including first and second series circuits of semiconductor devices coupled to terminals of the input bias voltage source, and a resistor voltage divider including first and second voltage divider resistors coupled in series with the first and second series circuits. A ratio representing the numbers of semiconductor devices in the series circuits is substantially equal to a ratio of resistances in the resistor voltage divider. The equality of the ratios may be corrected by the presence of other resistances in the undervoltage detector. The semiconductor devices are each coupled in a diode configuration. The first series circuit is coupled to a current mirror to provide a bias current for a comparator that produces an output signal for the undervoltage detector.

Abstract: A light strip includes a conductive plate including at least two first conductive strips, at least one column second conductive strips; first electric conductors including light sources soldered at said distance between said second conductive strips, second electric conductors soldered between said first conductive strips and said second conductive strips the light strip of the present invention not only has simple structures, but also has good stability.

Abstract: The present invention provides a display panel and a display apparatus using the same. The display panel comprises a first substrate, a second substrate, a liquid crystal layer, a first polarizer, a second polarizer, a half (½) wave plate and a quarter (¼) wave plate. The liquid crystal layer is formed between the first substrate and the second substrate. The first polarizer is disposed at an outer side of the first substrate. The second polarizer is disposed at an outer side of the second substrate. The half wave plate is disposed on the first polarizer. The quarter wave plate is disposed on the half wave plate. The invention can improve a chromatic dispersion problem of a 3D display.

Abstract: A Universal Serial Bus (USB) testing apparatus includes a Central Processing Unit (CPU); a Southbridge; a Baseboard Management Controller (BMC), connected with the Southbridge via USB. The BMC determines if a test starts or finishes, generates a first instruction of creating a virtual control computer when determining the test starts, creates a control module and a comparing module in a memory unit which are running to become the virtual control computer, and connects the memory unit with the BMC according to the first instruction. The control module sends control data to the CPU. The comparing module obtains feedback data from the CPU and compares the control data with the obtained data to determine if the control data is consistent with the obtained data, thereby determining whether the USB is working normally.

Abstract: A method of maintaining the integrity of software stored in memory, the method comprising: storing an indicator associated with the memory; calculating a reference value from the stored indicator; storing the reference value; modifying the indicator when the software in the memory is modified; storing the modified indicator; recalculating the reference value from the modified indicator; storing the recalculated reference value; and verifying the integrity of the software by: retrieving the modified indicator; calculating an expected value from the modified indicator; and comparing the expected value with the recalculated reference value. Preferably the integrity of the software is verified without calculating an expected value from the software. The reference and expected values are typically calculated in accordance with a secret key.

Abstract: A coated article is described. The coated article includes a substrate, a bonding layer formed on the substrate, a plurality of nickel-chromium-nitrogen layers and a plurality of silver-cerium alloy layers formed on the bonding layer. The bonding layer is a nickel-chromium layer. Each nickel-chromium-nitrogen layer interleaves with one silver-cerium alloy layer. One of the nickel-chromium-nitrogen layers is directly formed on the bonding layer. A method for making the coated article is also described.

Abstract: A coated article includes a substrate, and a coating deposited on the substrate by magnetron sputtering. The coating includes micropores, and each micropore is sealed by a sealing element.

Abstract: A retention device includes a first holder and a second holder. Two locking members downwardly extend from front and rear ends of the first holder. Each of the locking members and the first holder defines a guideway. An engaging portion extends from a side of the first holder. The second holder includes a handle to lock the engaging portion of the first holder. A number of latch portions extend from two ends of the second holder. The second holder can be arranged under the first holder via the latch portions of the second holder received in the guideway of the first holder, or the second holder can be juxtaposed with the first holder via the handle of the second holder locking the engaging portion of first holder.

Abstract: A magnetically-sensitive switch includes a housing, a metal block, a sling block, a rigid link, a first plate and an electrical switch. The housing includes a top wall, a bottom wall and two opposite sidewalls. A pair of sliding grooves is defined in the opposite sidewalls. The metal block is placed on the bottom wall. The sliding block is slidably connected to the sliding grooves. The rigid link is pivotally interconnected between the metal block and the sliding block. The first plate is attached to the housing. When the metal block is attracted by a magnetic force generated by a magnet placed adjacent to the top wall. The metal block is movable adjacent to the top wall, thereby driving the rigid link to drive the sliding block to slide towards the side opening along the sliding grooves until the sliding block triggers the electrical switch to generate a switching signal.

Abstract: A desktop computer includes a host portion, a network interface card and a first interface. The network interface card includes a first pin, a second pin, and a third pin. The first interface includes a fourth pin connected to both the second and third pins of the network interface card, and a fifth pin connected to the first pin. The screen includes a second interface connected to the first interface, a first LED, and a second LED. The second interface includes a sixth pin connected to the fourth pin, and a seventh pin connected to the fifth pin. The seventh pin is connected to a power supply through the first LED. The sixth pin is connected to the power supply through the second LED. When there is communication through a network connection, the first LED and the fourth LED to flash synchronously.

Abstract: A backlight module and a liquid crystal display device having the same, it comprises a LED light bar, a heat dissipating piece and a back plate. By using fixing elements, the LED light bar is fixed on the heat dissipating piece, and the heat dissipating piece is fixed on the back plate. It further comprises a stopping piece, and the LED light bar is fixed on the heat dissipating piece by the fixing elements going through the stopping piece.

Abstract: A light tube holder includes a base and two connectors for receiving either a light-emitting diode (LED) tube or a fluorescent tube. The connector includes a rotary member rotatably received in a through hole defined in a retainer, and three conductive elastic pieces positioned in the retainer around the through hole. One elastic piece is electrically connected to an LED tube drive circuit board, and the other two elastic piece are electrically connected to a fluorescent tube drive circuit board. The rotary member can be rotated to first and second positions, wherein at the first position, the LED tube can be activated, and at the second position the fluorescent tube can be activated.

Abstract: A test bench includes a supporting member, a hollow and columnar first surrounding wall, and a second surrounding wall surrounding the first surrounding wall. The first surrounding wall is lower than the second surrounding wall, and defines an annular groove in a top surface. The supporting member includes a round main portion and an annular extension portion mounted to a circumference of the main portion. A clearance communicating with the groove is defined between a circumference of the extension portion and the second surrounding wall.

Abstract: A test platform includes an annular rail, a supporting member rotatably mounted upon the rail, a number of wheel members mounted on a bottom of the supporting member, and a number of cleaning members mounted on the bottom of the supporting member. Each wheel member includes a wheel capable of rolling along the rail. Each cleaning member includes a cleaning portion rested on the rail. The wheels roll along the rail to rotate the supporting member and the cleaning member. The cleaning portions slide relative to and clean the rail.

Abstract: Noise reduction method and system for a touch detection device are disclosed. The noise reduction method includes: step A, performing a synchronous sampling on the touch detection nodes in one same group and storing the sampling data; step B, comparing each sampling data against a corresponding reference data to calculate a differential data which, as a detection data, replaces a corresponding original sampling data; step C, calculating statistics of the replacing detection data to screen out valid data to calculate a DC offset component indicative of a noise ingredient; and step D, obtaining noise-filtered detection data by subtracting the DC offset component from each detection data.

Abstract: A pixel driving circuit is provided, including first, second, third, fourth, and fifth switching devices and first and second capacitors. The first switching device has a first terminal coupled to a first power source voltage, and a control terminal coupled to a first scan signal line. The second switching device has a first terminal coupled to a second terminal of the first switching device, a second terminal coupled to a first node and an emitting device, and a control terminal coupled to a second node. The third switching device has a first terminal coupled between the first terminal of the second switching device and a second terminal of the first switching device, a second terminal coupled to the second node, and a control terminal coupled to a second scan signal line.

Abstract: Techniques are provided herein for the offline static analysis of a stable code base in order to build a compiler and tools specialised to that code base. This allows global code base knowledge to be applied earlier in the compilation process giving better opportunities for optimisation. The offline static analysis produces specialized compiler components that are then used to rebuild the compiler. This results, over time, in a compiler specialized to the code base with improved optimization after every compiler release cycle.

Abstract: A control circuit for a motherboard with a power supply unit arranged thereon includes a processing unit. To save consumption of electrical energy, the processing unit controls a switch unit to discontinue regulating a first power to a second power in a condition where a state of the motherboard is changed from state S0 to state S5.

Abstract: Disclosed are a pixel structure and a corresponding liquid crystal display device. The pixel structure comprises a plurality of pixel electrodes, a plurality of data lines, a plurality of scan lines, and a plurality of common electrodes. The common electrodes are disposed in a plurality of first metal trunk areas corresponding to a plurality of pixel electrode vertical trunk areas of trunk electrodes and/or gap areas between two adjacent pixel areas of a first metal layer. The pixel structure and the corresponding liquid crystal display device of the present invention are capable of increasing an aperture ratio of the pixel structure.