Abstract: A cost effective and easily assemblable image scanning device with a relatively stable and satisfactory scanning effect is disclosed. The present image scanning device is used in an image scanner having a light source and a focusing reflector device. The image scanner device includes a brightness reflection device for generating a brightness reflection signal in response to a light signal from the light source; an image sense device for respectively generating an image sense signal and a reference brightness signal in response to an object reflection signal from the object to be scanned and the brightness reflection signal; and a brightness-controlling device electrically connected to the image sense device for compensating the image sense signal in response to the reference brightness signal.

Abstract: A simplified transmission mechanism is provided for an image information apparatus. The transmission mechanism mainly includes a first pair of supports for guiding an illuminating unit, a second pair of supports beneath and parallel to the first pair of supports for guiding a photoelectric converting unit, four pulleys each located at the corners and on the same side of a housing, and a conveying device surrounding four pulleys in the shape of a closed loop for driving the illuminating unit to slide along the first pair of supports in a first direction and the photoelectric converting units to slide along the second pair of supports in a second direction at the same time and at the same speed.

Abstract: A scanner interface device of video system used with a scanner scanning a scanned object to obtain a scanned signal includes a scanner interface receiving the scanned signal outputted by the scanner and transforming the scanned signal into a preliminary video signal, a converter electrically connected to the scanner interface for transforming the preliminary video signal into a secondary video signal complying with a specific video system format, and a control unit electrically connected to the scanner interface and the converter for controlling the scanner interface device. The present invention is easy to operate and appropriate for use in families, can be used more diversely, and stores more data with less expense.

Abstract: A method and apparatus for calibrating an image system is disclosed. The method according to the present invention includes inputting data by scanning a plurality of lines into a computer, and analyzing the input data for generating intensity of the scanned lines. The inputting step is repeated when the intensity is less than a low threshold value or the intensity is higher than a high threshold value. Next, any scanned line that includes at least a special point is filtered out. After averaging the corresponding points of the scanned lines not filtered out in order to generate a calibration line, a predetermined number of points of the calibration line are averaged to generate a reference point, wherein the predetermined number of points of the calibration line are brighter than other points of the calibrated line. Finally, the calibration data are obtained by taking ratio of the reference point to each of the points of the calibration line.

Abstract: The present invention discloses a multi-power control system for scanners. The method of the present invention has a mode of warm up time, which is controlled by a software that is embeded in a computer. Users can choose a mode of warm up time to control the warm up duration when a cathode ray tube needs. After scanning, users can determine whether the scanner is to operate or in standby status. When the user chooses the latter, the luminosity of the cathode ray tube is according to the user's pre-set. This multi-power control system not only can reduce the warm up time but also can be in harmony with the concept of enviromental protection.

Abstract: The device includes a lens set inputting therein one of a plurality of input photic images of various sizes and outputting an output photic image through one of a plurality of various photic paths; and a reflection device cooperating with the lens set, and outputting the output photic image to be focused on the photoelectric transducing element through a reflection.

Abstract: A method and apparatus is used on a flatbed scanner for calibrating the horizontal starting point of a document which is to be scanned by the flatbed scanner. The flatbed scanner is of the type having a light-sensing device as a CCD or CIS device consisting of a linear array of light-sensing cells and a movable scan head. In the method and apparatus, two reflective marks are fixed at a predetermined calibrating position to the front edge of the document. During the calibration process, the movable scan head is moved to the calibrating position where it senses the two reflective marks to thereby determine the distance in pixels between the first light-sensing cell on the linear array and the first reflective mark, and also the distance in pixel between the two reflective marks. The distance in pixel between the first reflective mark and the horizontal starting point of the document can then be determined.

Abstract: An apparatus for sheet feed-out control is provided on an automatic sheet feeder used in conjunction with scanners, fax machines, printers, copiers, and the like. The apparatus comprises a feed-in roller set for feeding the sheet into a scanning position where a scanning process is performed and a feed-out roller set for pulling the sheet away from the scanning position and delivering the sheet onto a receiving tray. A pivotal pressing member is pivotally affixed proximate to the feed-out rollers. The pivotal pressing member is pivotally turned by the sheet as the sheet is being fed out of the feed-out rollers. As the sheet is entirely fed out of the feed-out roller set, the pivotal pressing member presses down against the tail edge of the sheet, thus flipping the sheet off the feed-out roller set. Since the sheet can be placed flat on the receiving tray right after it is entirely fed out of the feed-out roller set, a stack of sheets after being scanned can be piled up neatly on the receiving tray.

Abstract: The invention discloses a compact scanner with an internal document tray which can be integrated with a computer and adapted to the location of the floppy diskette driver of the computer. The invention has a very simple structure driving device which allows a document I/O device to locate between illuminating device and photoelectric converting unit. When scanning, an illuminating unit provides light source for the reflective sheet placed on the internal document I/O device. The reflection is then guided to photoelectric converting unit to be converted into electric signals for the computer to read.

Abstract: The present invention is an apparatus for scanner system having an infrared ray source, and this scanner system can be utilized in a region where there is lack of visible light. The present invention includes an infrared ray source, a mirror, a lens set, a filter, a charge couple device (CCD), a pro-processing means, an analogue to digital converter, and a post-processing means.

Abstract: The present invention is related to a compensation method for a series of synthesized image signals generated by a double-side readout type of CCD which includes the steps of: a) comparing the first two of the series of synthesized image signals with a reference signal to obtain a first and a second compensating signals, respectively; b) serially comparing each signal of the series of synthesized image signals with the reference signal to obtain a series of difference signals; and c) compensating the series of synthesized image signals according to the first and the second compensating signals and the difference signals, to make every two of the resulting series of synthesized image signals bearing consecutive ordinal numbers substantially equal to each other in potential level. The present invention also relates to a compensation apparatus for implementing the present compensation method.

Abstract: The invention disclosed a scanner with the function of providing transmitted light source and reflective light source which can be adapted to the location of a floppy diskette driver of a computer. The invention mainly includes a double-function carriage loaded with a transmitted light source and a reflective light source and a gap therebetween for allowing a transparent document tray to pass through. When scanning, a driving device moves the double-function carriage in longitudinal direction along the sheet to complete the exposure of the entire sheet.

Abstract: The present invention is related to a scanning apparatus which includes a scanning device emitting a light to a scanned target and receiving a reflected light from the scanned target for scanning the scanned target, and a light-adjusting device electrically connected to the scanning means and adjusting the light emitted from the light source in accordance with the reflected light. The scanning apparatus according to the present invention uses the light-adjusting device to make the scanning device capable of scanning objects having various background colors, i.e. various transmission/reflection ratios, so that a high efficiency and a high resolution image can be obtained.

Abstract: The present invention provides a scanning optical set used with an optical-electronic converter for providing an optical image to said optical-electronic converter to generate an electronic signal, which includes a reflective mirror set receiving said optical image for outputting, through different optical paths, a plurality of output images and a lens set, through which, said output images are focused onto said optical-electronic converter. Such scanning optical set can be used for obtaining optical resolution and scanning width for different documents.

Abstract: A reflection type scanner to transparence type scanner converter, comprising: (a) a casing, having a flat upper surface installed with a scanning window; (b) a light source, fixed to the casing; (c) a power supply, to provide electricity required by the light source; (d) a light transmitter layer affixed to the scanning window of the casing, the light transmitter layer being made of a superior light conducting material and capable of minimizing light scattering so as to evenly distribute the light emitted by the light source in the form of a planar light source; and (e) a protective layer made of an abrasion resistant material covering the top of the light transmitter, and used to protect the light transmitter layer from abrasion.

Abstract: A tapered-shaped rotatable frame with at least three filter windows, with at least three filters installed on it, a lens stand which includes a supporting means to rotatably support the frame. The angle between the supporting means and the frame's surface is supplementary to the angle between the supporting means and the frontal surface of the lens.

Abstract: A reflection-transparence scanner comprises a reflection type scanner and a scanner converter which converts reflection type scanner as transparence type scanner, the scanner converter comprises: a casing, having a flat upper surface equipped with a scanning window; a light source, fixed to the casing; a power supply, to provide the electricity to the light source; and a light transmitter, fixed to the scanning window of the casing, and used to evenly distribute over a plane the light emitted by the light source.