Abstract:
A paper feeding device includes a cover, a base, a pickup roller assembly and at least one paper blocking unit. The paper blocking unit is placed beside the pickup roller assembly, has a paper blocking element and a projection projecting from the upper portion of the side wall of the pickup roller assembly. The paper blocking element includes a connecting portion, a paper blocking arm, a pivot rotatablely connecting the cover. A connecting arm extends upwards from the end of the pivot, a blocking portion projects from the outer side of the connecting arm, a passage is formed between the blocking portion and the connecting arm. The projection can be downward against the blocking portion of the paper blocking element or pass through the passage of the paper blocking element to allow the paper to be fed in, so the cooperation is easy, the paper feeding device works smoothly.
Abstract:
A holographic data storage medium and a fabrication method thereof are provided. First, a precursor solution including an ultraviolet curable adhesive composition including a monomer having at least one (meth)acryloyl group in the molecule and an oligomer having at least two (meth)acryloyl groups in the molecule, a photopolymerizable organic compound and a photoinitiator including 2, 4, 6 trimethyl benzoldiphenyl phosphine oxide is provided. Next, a first substrate and a second substrate are attached to one another such that a gap is formed between the first and second glass substrates. Next, the precursor solution is filled into the gap. Next, the precursor solution between the first and second substrates is irradiated with a light in an atmosphere of an inert gas to induce photo-polymerization reaction to form the recording layer.
Abstract:
A USB connector housing includes: a hollow main body; a guiding pin extending from the main body; and an engaging member extending from the main body and including a pair of opposite engaging pins adapted to extend through an engaging hole in a board. Each of the engaging pins has a leg portion extending from the main body, a body portion extending from the leg portion and adapted to abut against a hole defining wall of the engaging hole in the board, a neck portion extending from the body portion, and a head portion enlarged in cross-section from the neck portion. The head portion of each of the engaging pins has an anchor end adapted for anchoring at a periphery of the engaging hole in the board. The anchor end of the head portion has a width greater than those of the neck portion and the body portion.
Abstract:
A holographic storage and reproduction system and method with a servo are provided, wherein a servo mechanism is provided, such that the holographic interferogram is continuiously stored in the holographic recording medium. When a reproduced signal is to be obtained, it can be retrieved quickly and accurately through the servo mechanism. Also, the intensity distribution of the reference light reflected by the holographic recording medium can be monitored and controlled, such that the relative distance and oblique angle between the storage and reproduction system and the holographic recording medium are analyzed and adjusted.
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 double-sided high-density information storage medium uses a laser pickup head with blue light and light of a shorter wavelength to read and save data in order to increase the data storage per unit area on the information storage medium. The invention further uses a double-sided high-density information storage medium and a double-sided recording stack structure to increase the storage capacity, forming a double-sided two-recording-layer and double-sided four-recording-layer information storage media.
Abstract:
A golf club head having a perforated sound plate suspending inside a hollow casing thereof, the perforated sound plate being vibrated to make a sound when the golf club head strikes the ball.