Abstract: An apparatus for holding a contact image sensor of a scanning system includes a supporting shaft and an elastic element. The supporting shaft is set through a holder and contact the contact image sensor. The elastic element contains a spring. The spring is positioned outside the holder and provides a force to the supporting shaft for pushing the contact image sensor upwardly. In this case, the contact image sensor stays close to a document plate to conduct scanning processes. Since the spring is outside the holder, the variation of holder due to manufacturing would not affect the force from the spring. Thus balanced forces are generated by the springs, further avoiding the situation of the contact image sensor jammed during scanning processes.

Abstract: The present invention relates to a method and apparatus for displaying subtitles by a multination language human-machine interface that having small memory space occupation and conveniently for program maintenance. First of all, a character database is been edited, and in accordance with the character size to edit the bitmap file for each individual character. The bitmap file is then transferred to 80c51xa assembly language and stored in the character database. Then, the “string code”, the “string combination code and position shifting code”, and the “string combination code of multination language and position shifting code” of the controlling program are established, and the content of the character database is been called. During a practical usage, the desired string is been called by the controlling program, then carried out the language judgement of the exercising nation.

Abstract: The present invention provides an image data processing system to increase the speed of on-screen display (OSD) image processing. The image data processing system comprises M color code registers for storing a plurality of color codes and a first multiplexer electrically connected to every output port of the M color code registers. The first multiplexer comprises a control port for inputting an N-bit image code, and the first multiplexer chooses one of the outputs of the M color code registers as its output according to the N-bit image code. The image data processing system comprises a processor for storing M color codes in the M color code registers and periodically transmitting a plurality of N-bit image codes to the control port of the first multiplexer so that the first multiplexer periodically chooses one of the color codes stored in the M color code registers as its output according to one of the N-bit image codes.

Abstract: A test image has a black bias on a white background. The black bias is a line set at about 45 degrees to the scan lines of a scanner. Boundary points of the scanned bias are found. A regression line is calculated from the positions of the boundary points. Differences in the positions of adjacent boundary points, together with the slope reciprocal of the regression line, are used to determine error values. The error values are compared with a gate value to determine if there are any occurrences of scan line misalignment.

Abstract: In the method of adjusting scanner photoelectric module, a reference pattern is projected to the charge-coupled device through a lens for generating image signal corresponding to the charge-coupled device. The lens and the charge-coupled device perform adjustment in accordance with the obtained image signal to improve MTF value and the magnification (or zooming) ratio. This invention provides a block at each of the two sides of the scan width of the reference pattern and two sets of line patterns between the scan widths of the reference pattern. The two blocks (such as right triangle blocks) are increasing/decreasing in their width and are symmetrical, and have a side at the vertical scan direction, for determining the margins and the horizontal status of said scanner photoelectric module. The two sets of line patterns are vertical and inclined at the scan direction, respectively, for determining the MTF value of the scanner photoelectric module along the scan direction and the vertical scan direction.

Abstract: A double side scanner module which consists of a U-shaped inversion device and two image information reading devices is provided for reading images on the two sides of an original in a single pass. The U-shaped inversion device has two ends for providing a paper feeding path and a paper output path respectively. The two ends are at the same side for the convenience of operation. At both of the two ends, there is a glass window. Beneath each of the glass windows, there is an image information reading device. When an original is fed into the paper feeding end and conveyed through the first glass window, the first image information reading device starts to read the image on the first side of the original. When the original is conveyed through the U-shaped inversion device, the scanned side will be inverted to the other side.

Abstract: The present invention provides a scanning device. The scanning device comprises a document plate for placing a document, at least a sliding guide placed at one side of the document plate, a scanning module which is in front of the document plate for scanning the document along the direction of the sliding guide, a first light source assembled in the scanning module for providing light to scan documents, and a driving module electrically connected to the scanning module for driving the scanning module to perform scanning procedure to the document.

Abstract: A system relates to the up-to-date of firmware for a computer memory system is disclosed. Firstly, a computer memory will be divided into as four portions using the function of this method according to this present invention. Also, these four portions are employed as the following functions. The first portion is Initial Program, the second portion is Firmware (P1), the third portion is a Backup Firmware (P2), the fourth portion is P1 Firmware Parameter, and finally the fifth portion is P2 firmware, respectively.

Abstract: A scanner has a scanning module for generating image data by way of scanning a document, a motor for driving the scanning module, and a control circuit electrically connected to the scanning module and the motor for controlling operations of the scanner. The scanning module has a light source for illuminating the document and a charge coupled device (CCD) for detecting reflected light from the document so as to generate the image data. The scanner is powered only by a serial bus.

Abstract: An image scanner performing multiple scanning operations for a single scan line is disclosed. The additional scanning operations are performed between two adjacent pixels. For a double scanning mode, the CCD performs one scanning operation for a scan line at a first position. Then, the CCD is moved from the first position to a second position along the X-direction to perform the other scanning operation at the second position. The distance between the first and the second positions is a half of the distance between two adjacent pixels. The scanning data of the two scanning operations are alternatively arranged and converted into final image data. By this way, a low-pixel-density CCD can be used to obtain a high-pixel-density scanning quality.

Abstract: A device and method of correcting a scanned image generated by a scanner for eliminating dark lines. The scanner is driven to scan a calibration paper. Using the scan data, a plurality of base scan data corresponding to various positions of a scanning line are calculated by averaging the scan data at the same position. Further, a plurality of reference scan data corresponding to various positions of the scanning line are calculated in response to the base scan data with a numerical processing procedure, such as the left-/right-reference algorithm or the curve approximation algorithm. The difference between the base scan data and their corresponding reference scan data is compared with a defect level to mark the defect positions. Finally, the output of the scanned image sensed by the image scanner is corrected by using the defect information, thereby eliminating dark lines.

Abstract: A slide securing device, using in a flatbed scanner, includes a frame and a securing cell. The securing cell comprises an aperture, a first securing clip, a second securing clip, a first securing groove, a second securing groove, a picking portion, a first support member and a second support member. The slide securing device utilizes proper clips for holding slides. Thus, the scanner can directly scan the secured slides by predetermined parameters and reset mode, in order to save scanning time. Further, the securing grooves maintains slides at a fixed height to improve the scanning quality.

Abstract: Apparatus for acquiring an image utilizing serial transmission between the analog-to-digital converting means and the processing means (ASIC) is disclosed herein. The image acquiring system according to the preferred embodiment of the present invention includes the following devices. The image sensor converts an image to an electrical signal responding to a trigger signal. An amplifier amplifies the power of the electrical signal mentioned above, and the amplified electrical signal is of the analog format. The A/D converting device converts the amplified electrical signal from the analog format to the digital format responding to a reference voltage, wherein the A/D converting device outputs the digitized electrical signal in series. The processing device stores the digitized electrical signal in a memory, wherein the trigger signal is generated by the processing device responding to the digitized electrical signal.

Abstract: An image-sensor emulating device establishing a link with a host system via the internal bus of the host system. The image-sensor emulating device emulates the functions of image-sensors by programmably generating the relevant image-sensor and timing signals. Alternatively, the timing signals can also be generated from the timing signals outputted by an outside image-sensor. Therefore, the emulating device can generate predetermined image-sensor signals and timing signals such that the debugging process is simplified and the developing efficiency is improved. Moreover, the emulating device according to the present invention can also generate a timing signal serving as a reference timing signal for emulating an image-sensor. The reference timing signal can be used to compare with the actual timing signals of an image-sensor.

Abstract: A transparent document securing device, using in a flatbed scanner, includes a securing frame. The securing frame comprises at least a securing cell, wherein the securing cell further includes a concave, a cover and a clip mechanism. The concave includes at least a first opening and an open slot. The cover includes at least a second opening. The securing device employs the cover to mount a transparent document in a concave. A user is therefore be able to place the securing device along with the transparent document in the document glass of a scanning system. By a predetermined mode, the scanning system is able to directly scan the transparent document; no need to preview the scanned image to adjust the scanning area. Thus, the time for scanning is saved. Further the fixed depth of the concave is utilized to proved a precise focus of the scanning system. The quality of the scanned image is therefore improved.

Abstract: An automatic cooling mechanism is provided for an electrical device having a high-temperature element and a rolling shaft. The mechanism includes a fan mounted within the electrical device and a transmission mechanism connected between the fan and the rolling shaft for transmitting rotational kinetic energy from the rolling shaft to the fan to rotate the fan for reducing the temperature of the high-temperature element.

Abstract: A wide image scanner which can scan the image of a large scale original using only a regular image sensor is provided. The invention includes a sliding shaft, an image reading device, a number of paper width sensors, a paper edge sensor, and a control module. Whenever the paper edge sensor detects the presence of an end edge of the original, it will send a vertical control signal to the control module to control the rotation direction of the rollers. On the other hand, the paper width sensors detect the width of the original and send the horizontal control signals to the control module. From the horizontal control signals, the control module can determine the number of horizontal displacement positions and control the horizontal displacement each time for the image reading device after the paper edge sensor detects the end edge of the original. The procedure continues until the image reading device has been moved to the final displacement position predetermined by the horizontal control signal.

Abstract: The present invention provides an apparatus and method for providing extra bits for post image processing, thereby to increase the image bit depth and compensate the loss of image accuracy. The present invention operates on multiple least insignificant bits of the post-pixel memory device and the pre-pixel memory device to generate compensation bits. The compensation bits can be appended to the rightmost bit positions of the current pixel. With the compensation bits, the image bit depth can be increased. Consequently, the image will be processed more accurately after post processing. Moreover, since the extended bitstream preserves the complete bits of the original pixel, therefore the accuracy of the original image will not be affected by the compensation bits.

Abstract: The focus controlling system of the present invention can include a calibration paper, an image capturing device, an input interface, and a processing and controlling device. The image capturing device is employed for scanning the calibration paper. The image capturing device has a focus point adjusting mechanism. The input interface is utilized for receiving a location data of a scanning point. The processing and controlling device is responsive to the input interface and the image capturing device to control the focus point adjusting mechanism. The focus controlling method of the present invention includes the following steps. First, a scanning point is set or detected and a compensated magnification ratio for the scanning point is then calculated. A focus point of a image capturing device is adjusted and a calibration paper is scanned. The adjusting step and the scanning step are then repeated until a magnification ratio of the calibration paper is about the value of the compensated magnification ratio.

Abstract: The present invention provides a scanning method for performing a low resolution scan by using a high resolution scanning module. The scanning module comprises a plurality of linearly arranged photo sensors, a shift register, and an output unit. The low resolution scanning method is as follows: 1. activating the photo sensors to sense the light transmitted from the document for a first predetermined time period to generate correspondent induced charges, 2. transmitting the induced charges from the photo sensors into corresponding storage units, 3. shifting the induced charges stored in the storage units into the output unit in sequence, 4. after a first predetermined number of the induced charges being accumulated in the output unit, outputting the induced voltage of the output unit and then resetting the output unit to continue receiving the induced charge from the output port, and 5. repeating the previous step until all the induced charges in the storage units are outputted.