Abstract:
An optical imaging device and an optical sensor thereof are described. The optical sensor is used for sensing a signal light. The optical sensor includes a plurality of photosensitive pixels and at least one absorption wall. The absorption wall is disposed between the photosensitive pixels, and a top of the absorption wall is higher than photosensitive surfaces of the photosensitive pixels. Herein, the photosensitive pixels are used for receiving an incident signal light, and the absorption wall is used for absorbing non-parallel light components in the signal light.
Abstract:
A three-dimensional video composite signal demodulating method and system capable of inhibiting pseudo-color noises. The system has a two-dimensional luminance and chroma signal separator, a three-dimensional luminance and chroma signal separator, a luminance weighting device, a chroma weighting device and a band pass filter. The method applies the two-dimensional luminance and chroma signal separator to obtain a two-dimensional luminance and chroma signal of a pixel, next the three-dimensional luminance and chroma signal separator to determine the pixel still or not according to a two-dimensional luminance and chroma signal change between a current frame and its previous and following frames with respect to the pixel, and gives appropriate weights to luminance and chroma signals generated by the two-dimensional and the three-dimensional luminance and chroma signal separators respectively, thereby respectively adding and obtaining separated luminance and chroma signals of the pixel.
Abstract:
A holographic recording and reproduction system includes a servo optical path, which is used to provide a servo mechanism, so that holographic interference fringes can be stored continuously into a holographic recording medium, and when the reproduction signals are desired, they can be fetched and obtained swiftly and accurately by making use of the servo mechanism. In addition, the servo light spot of the servo optical path is located on the optical axis of an object lens, thus reducing the image aberrations produced and raising the quality of the signals read for the servo track searching. Moreover, the light intensity distribution of the reference beams reflected by the holographic recording medium is monitored and controlled, as such realizing the analysis and adjustment of the relative distance and inclination angle between the holographic recording and reproduction system and the holographic recording medium.
Abstract:
A sheet-handling apparatus includes a base, a second motor and a sheet-fetching assembly driven by the second motor. The sheet-fetching assembly has a passive gear and a floating gear. When the passive gear rotates, the floating gear revolves around the passive gear. A plurality of driving rollers are driven by a first motor. A plurality of driven rollers are driven by driving rollers, respectively. A prop assembly includes a brace arranged in the base, a prop axel engaged in the brace, a twist arm fixed at the prop axel and having a plurality of teeth for contacting with the floating gear, a swimming arm sleeved and firmly engaged with the swimming arm and a spring component installed on a support board of the swimming arm. The passive gear drives the floating gear descending and ascending. There are two motors provided in the sheet-handling apparatus in order to simplify the structure of the sheet-handling apparatus.
Abstract:
A flat bed scanner having a transparent platform and a scanning mechanism is provided in the present invention. The transparent platform is used to support the objects that wait for scanning. The scanning mechanism is movably placed under the transparent platform along the length direction of the transparent platform. The scanning mechanism includes a plurality of LEDs, a camera lens and a CCD. The LEDs are arranged in a line along the width direction of the transparent platform. The scanning mechanism further includes a diffuser that is placed over the LEDs and has the same width with the transparent platform, and the diffuser diffuses the light beams radiated from the LEDs and then projects the light beams being diffused over the objects that wait for scanning.
Abstract:
A pipeline processor for scaling and converting RGB color input images to CMYK at a magnification specifiable in 1 percent increments up to 400% includes a scaler having predefined main scale factors including one at maximum scale. An interim scale factor is selected from the main scale factors as one nearest the specified magnification toward the high end of the range. A pixel transformation is made at the interim scale factor between a subset of the source pixels and a corresponding subset of intermediate pixels using hardware circuits. The intermediate pixels are then interpolated to produce a scaled image by dropping an evenly spaced subset of the intermediate pixels when the magnification is less than the interim scale factor. A set of enhanced pixels is derived from the scaled image by proportionally weighting center pixels against average values of diagonally neighboring pixels. Color conversion is done by multiplex addressing of a lookup table using high-order portions of RGB values and incremented values to obtain sets of neighboring CMYK values. Conversion is completed by interpolating between the neighboring values using low-order portions of the RGB values. Halftone output data is obtained from comparisons of 8-bit pixel values with halftone pattern values from another lookup table that is addressed by pixel and line counters. Also disclosed is a method for scaling an image defined by an array of source pixels to produce an array of output pixels according to a received scale factor.
Abstract:
A digital broadcasting signal processing method for processing a multimedia stream by a set-top box is disclosed. A USB request command set is pre-defined in a digital signal receiving unit to support the set-top box. The digital signal receiving unit transmits data with the set-top box and controls the signal quality of the data transmission according to the USB request commands transmitted by the set-top box while the digital signal receiving unit connected with the set-top box via USB.
Abstract:
In an electrical connector, a housing includes opposite front and rear end walls, and an insertion slot that is formed between opposite upper and lower inner wall surfaces extending in a front-rear direction and that opens at the front end wall. A terminal has a movable arm and a stationary arm that are disposed respectively on two sides of the insertion slot. The movable arm has a front barb-like contact portion proximate to the front end wall. The stationary arm is tapered forwardly, and has a front end distal from the front end wall, and an inclined contact face that is inclined rearwardly and gradually toward the insertion slot from its front end. The electrical connector has a miniaturized construction and reduces an insertion force for inserting a printed circuit board.
Abstract:
Disclosed herein is a solar cell, which includes a substrate, a photoactive member and a two dimensional photonic crystal. The photoactive member is disposed on a surface of the substrate. The two dimensional photonic crystal is disposed on the surface of the substrate and adjacent to the photoactive member such that a light propagated from the photoactive member is reflected back to the photoactive member.
Abstract:
A double-sided copper foil substrate, which comprises: a polymer layer; a first copper foil; an adhesive layer formed on the polymer layer such that the polymer layer is sandwiched between the adhesive layer and the first copper layer; and a second copper foil causing the adhesive layer to be sandwiched between the second copper foil and the polymer layer, wherein the polymer layer and the adhesive layer have a total thickness of from 12 to 25 μm. The present invention further provides a flexible printed circuit board structure utilizing the composite double-sided copper foil substrate of the present invention, wherein the second double-sided copper foil substrate has a trench for exposing a portion of the adhesive layer. The double-sided copper foil substrate of the present invention are lower in rebound and satisfying the demand for the greater number of bending and sliding cycles under a lower R angle, and particularly is suitable for thin and flexible electronic products.