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.

Abstract: An electronic or information appliance, for example an LCD projector, air-conditioner or washing machine, which can use a data bus to read and write data at the same time. The electronic or information appliance comprises a data bus for transmitting data, an input device electrically connected with the data bus for providing data, an output device electrically connected with the data bus for receiving data, and a micro-controller electrically connected with the data bus for controlling the input device and output device. When the micro-controller reads a datum from the input device through the data bus, it writes the datum to the output device through the data bus at the same time to increase a data transmission speed between the input device and the output device.

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. One or more calibration papers can be employed in the focus controlling system. 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 by evaluating a resolution index. As an example, the image capturing system can be a flatbed scanning system. One of the focus controlling method of the present invention includes the steps as follows. At first, a scanning point is set or detected and the position of an image capturing device is adjusted to scan a selected calibration paper of two or more calibration papers.

Abstract: An apparatus and a method adapted to be used in manufacturing an image scanning apparatus for calibrating a reflective lens on a carriage are disclosed. A calibrating device has thereon a first set of three projective points from three point light beams and a first set of three calibrating points corresponding to three point light sources. The calibrating device further includes thereon a second set of three projective points and a second set of three calibrating points for matching each of the projective points on the calibrating device with a corresponding one of the calibrating points by adjusting an angle and a position of the reflective lens on the carriage so as to achieve a calibrating function.

Abstract: A method and system is implemented on a host computer for operating upon a window system to update a graphic representation of a selected window item using an image information reading apparatus. The invention mainly includes an image cropping manager for providing a cropped image by cropping an image transmitted from the image capturing manager according to a size requested by a user; and an interface manager for providing a plurality of menu items each associated with at least a dialog box for setting the cropped image as a default image of a selected menu item. The plurality of menu items include Startup Screen, Wall Paper, System LOGO, Icon, Cursor, Screen Saver, Shutdown Screen, Theme, and Restore for updating an associated graphic representation. Eventually, an user can easily establish a personalized windows graphic environment with the assistance of the invention.

Abstract: A scanning system capable of conducting black calibration with a fixed mask has a shell, a conveying module for driving an image capture module to a parallel movement, an image capture module for capturing image therefore transferred to digital signals, and a fixed mask for obstructing the light path in order to conduct the black calibration. The image capture module is driven by the conveying module and moved to a predetermined mask position. At the predetermined mask position, the mask may obstruct the light path. In this case, the scanning device is able to conduct the black calibration, provided a black calibration signal for adjustment purposes.

Abstract: The present invention relates to an apparatus having a light source for a transparent sheet of a scanner that includes a lamp, a reflective plate, a spreading plate and a protective plate. The light rays emitted by the lamp are used to scan a transparent sheet, the reflective plate in the arc shape reflects the light rays onto the scanning platform and there is an aperture on the predetermined position of the reflective plate to decrease the illumination for distributing uniformly the light rays. Besides, the spreading plate has a plurality of perforations to advance the light rays distributed uniformly. The protective plate made of the material pervious to light protects the components of this invention. As those described above, there are many advantages for the present invention, such as the structure is simple, the cost is low, and is much practical and can highly improve the performance of a scanner for a transparent sheet.

Abstract: An automatic document feeding apparatus for feeding a document to a flatbed scanner to conduct the scanning processes. The automatic document feeding apparatus includes an upper body, a lower body, a feeding path and at least a linkage set. The linkage set is able to uphold the upper body separated completely from the lower body. In this case, the spaces left between the upper body and the lower body is relatively wide for users to clear the jammed document. Further, the linkage set comprises plastic pad for providing stopping resistance to maintain said upper body at a certain distance above the lower body.

Abstract: A method is provided for generating a diversified-shaped image frame and fixing a keystone image frame problem. The method includes steps of repeatedly determining a specific pixel frequency of one of the plurality of image signal lines and outputting the one image signal line according to the specific pixel frequency until all of the plurality of image signal lines are outputted. A shape of the image frame is diversified by assigning diversified pixel frequencies to the plurality of image signal lines respectively.

Abstract: A scanner module with a single image information reading device is provided to read both sides of an original. The scanner module mainly comprises: a paper feeding device, and a paper output device for providing an I/O path for the original. The paper feeding device is connected to a scan station. The scan station comprises a glass window and a pinch roller which locates against the glass window. Beneath the glass window, there is an image information reading device. Under the guidance of the pinch roller, an original will be conveyed progressively from the paper feeding device and through the glass window for the image information reading device to read the first side of the original. The original will be inverted while passing through an inversion device. At the mouth of the inversion device, there is a document sensor. When the original leaves the inversion device, the sensor will generate a control signal to the pinch roller and enable the pinch roller to rotate in an opposite direction.

Abstract: A scanner photoelectric module with adjustable lens and charge-coupled device (CCD) module includes a supporting device, a lens module and a charge-coupled device module. The supporting device is arranged on an optical axle and has two planes vertical to the optical axle. The lens module and the charge-coupled device module are arranged on the two planes of the supporting device, respectively. The lens module can be arranged at one side of the supporting device for rotating around the optical axle. The charge-coupled device module can be arranged at the other side of the supporting device for moving horizontally (or rotating around the optical axle).

Abstract: Before assembling a scanning module, the type of the scanning module is predetermined. When the scanning module is predetermined, the shape of MTF-DF curve is therefore fixed. The scanning module includes a glass plate, lens and an image generating means. During the assembly, the image generating means and the glass plate are mounted. A correction document is placed on the glass plate. The position of the lens is adjusted in order to reflect a point at the lowest point of the tolerant range of the depth of scanning field in the MTF-DF curve. The position of the lens is then fixed. An increased depth of scanning field in a scanning device is thusly obtained.