Abstract: A control device and a method for controlling scanning speed of a scanner. The control device includes a decision device and a driving device. The decision device further includes an image buffer, an up-down counter and a comparator. The decision device receives the input image data and utilizes the up-down counter to compute data access volume inside the image buffer. The comparator decides whether to increase or decrease the scanning speed according to the data access volume and also outputs decision data to the driving device.

Abstract: Apparatus for reducing exposing time of an image processing system is disclosed herein. The image processing system including a shift register coupled to a photo-sensing means, the photo-sensing device is used to convert an optical image from a lens to a plurality groups of charge to form an electrical signal. The apparatus includes control device (counter) and a reset gate. The control device generates the first reset signal and the second reset signal depending on whether the image processing system is in a first resolution mode or a second resolution mode. A first number of cells of the photo-sensing device are exposed to the light of the optical image during the first resolution mode, and a second number of cells of the photo-sensing device being exposed to the optical image during the second resolution mode. The first number of cells is greater than the second number of cells.

Abstract: A method for recognizing abnormal image is disclosed. The invention utilizes level comparisons of adjacent image lines to determine if there is any abnormal image amid an image picture and whether the abnormal image belongs to shading or LBB. The method comprises the following steps. First of all, two adjacent image lines having level values Pi and Pi−1 are selected. Then an absolute value of the Pi and the Pi−1 is calculated. Next the absolute value is compared with a value X. When the absolute value is smaller than X, then the image lines are determined as normal. On the contrary, when the absolute value is larger than X, then at least one of the image lines is determined as abnormal. Moreover, another two image lines having level values Pi+1 and Pi−2 separately adjacent the image lines having level values Pi and the Pi−1 are selected.

Abstract: A method for establishing a long-term profile of blood sugar level aiding self-control of the same is provided. The present method includes periodically obtaining a specimen from a patient, and detecting a response of the specimen. Obtaining a blood sugar value of the patient based on the response, and storing the blood sugar values periodically measured. Establishing a long-term profile of blood sugar level from the measured blood sugar values in a form of chart. Furthermore, when the variation of the long-term profile of blood sugar level exceeds a standard, generating a warning signal informing the patient. When the variation of the long-term profile of blood sugar level does not exceed the standard, generating a safety signal informing the patient.

Abstract: The present invention provides a determination method to obtain the optimum image output quality. The method comprising the standard white plate is scanned prior to the scanning document sheet to obtain a first image data. Then, the first image data is calculated to generate the shading curve, noise level, and brightness data, which corresponding to each sensor device. Next, the shading curve or standard values returned to input into the calibration database. Thereafter, the scanning device scanned and exposed the document sheet to obtain a second imaging data that corresponding to each sensor device and to read out the standard curve (shading curve) from the calibration memory simultaneously.

Abstract: A scanning method for detecting documents is provided an optical scanning device. The optical scanning device is capable of scanning an object by a reflective scanning mode or a transmittal scanning mode. Then obtaining an image signal of the object by either the reflective scanning mode or a transmittal scanning mode with the retrieved scanning mod. Comparing the image signal with a pre-determined signal will result in an implementation from one of the reflective scanning mode or the transmittal scanning mode.

Abstract: A method of resolving photoelectron coupling that results from the operation of a staggered charge-coupled device inside a scanner. The staggered charge-coupled device at least includes an optical sensor group comprising of an optical sensor array and a neighboring optical sensor array for scanning pixels. The method includes the step of: recording the quantity of photoelectrons transferred between a first quantity of photoelectrons captured by the optical sensor array and a second quantity of photoelectrons captured by the neighboring optical sensor array during a scanning time interval t. Thereafter, the quantity of transferred photoelectrons is subtracted from the first quantity of photoelectrons captured by the optical sensor array to obtain the correct quantity of photoelectrons captured by the optical sensor array during the scanning time interval t. Using the corrected value, accurate brightness value of the pixels scanned by the optical sensor array is obtained.

Abstract: A method for generating a calibration curve is disclosed. The method comprises the following steps. Calibration data of one image line of previous scan are firstly provided. Reference pixels are selected from the image line. Then a calibration board is scanned and calibration data of the reference pixels are generated. Calibration data of the reference pixels of previous scan are then selected from the calibration data of one image line of previous scan. Ratios of the calibration data of the reference pixels and the calibration data of the reference pixels of previous scan are calculated. Calibration data of all pixels of the image line are finally generated by multiplying the calibration data of the image line of previous scan and the ratios.

Abstract: An apparatus of linear staggered sensors. The scan comprises a first sensor and a second sensor. The first sensor is laterally offset from the second sensor, the sensors comprises a plurality of charge coupled devices, wherein the each of charge coupled device comprises a photosensitive zones and a non-photosensitive zones, the charge coupled devices of the sensors are linear arrangement; and the first sensor is abutting with the second sensor, wherein the first sensor is abutting place with the second sensor is the non-photosensitive zones.

Abstract: A method of increasing the scanning resolution of a scanner through controlling its driving system. By suitably adjusting the timing relationship between motor pulses and exposure pulses, a low-resolution driving system can produce a high-resolution image with no additional production cost incurred.

Abstract: An image processing method for facilitating data transmission is provided. An image compression method is performed to convert X-bits binary digital signals to a binary compressed data in a floating-point form of (1.n)* 2m. Bit m represents the first bit with logic level “1” of the X-bits binary digital signals, and n represents the bits taken from the X-bits binary digital signals after the bit m. The binary compressed data in the floating-point form of (1.n)*2m is outputted with a sequence of binary number representing a set of (m, n). The latter n bits of the sequence of binary numbers are consisted of the n bits of the X-bits digital signal. Therefore, by the present image compression method, the transmission amount of image data is reduced. The transmission time of image data and the volume of a memory for storing the image data are also reduced.

Abstract: A method for selecting a shading correcting line is provided. Scanning a white reference source to obtain several scan lines. Averaging brightness values of pixels from identical columns in the scan lines to obtain a new scan line composed of pixels having median brightness values. Adding one count in shading counting number when an absolute value of a difference of the median brightness values between each pair of adjacent pixels in the new scan line not less than a specification value of shading definition. Selecting the new scan line as a shading correcting line when total shading counting number less than a specification number of shading counts.

Abstract: The present invention discloses the system and method of a scanning module with an incorporated printer head. The method includes using a scanning head of scanner to scan an objects image pattern, using the printer head of scanner to print the object image pattern on a printing paper. Wherein the printer head and the scanning head use the same motor drive and driving component, and uses a control module to adjust the driving mode of the scanning head and the printer head. The system includes a scanning module for scanning an object image pattern, a printing module for printing the object image pattern, wherein the printing module is incorporated in the scanning module, a motor drive for driving the scanning module and the printing module, and a control module for adjusting driving mode of the scanning module and the printing module, thereby showing the object image pattern on a printing paper by using the printing module function.

Abstract: A lamp protection device of an optical image scanner is disclosed. The lamp protection device comprises a chassis having a lamp holder and a lamp therein and buffer means for absorbing shock on lamp. The chassis moves under a transparent sheet of the optical image scanner and scan a document places on the transparent sheet. The buffer means for absorbing shock on lamp contact and provides the lamp with damping when said chassis end scanning and is locked.

Abstract: A key switch signal recognition circuit including a plurality of key switch buttons, a plurality of key switch signal output lines, and a plurality of key switch button contact areas is disclosed. Each of the key switch contact areas includes a first wire set and a second wire set. The first wire set has at least one wire, and each wire of the first wire set has one end connected to a common line and an opposite end forming an open end. The second wire set has at least one wire respectively disposed in parallel to and electrically insulated from the wire of the first wire set. The wire of the second wire set is respectively connected to a key switch signal output line.

Abstract: A method of providing the inputting units of the scanner with a foolproof function. Initially, while a specific inputting unit is activated, such as a push button being pushed, the connection between the operation of the scanner and other inputting units is terminated. This terminated connection is not regained until the specific action, which corresponds to the specific inputting unit, finishes. Moreover, an “activation” message can be directly displayed on the scanner while this specific inputting unit is activated, and while the scanner is processing some specific action, this action can be terminated with the function of the scanner and the connection between all inputting units regained as soon as this specific inputting unit is activated again. For any scanner with the foolproof function, while a specific inputting unit is activated, not only a corresponding specific action is performed but also the connection between the performing specific action and all inputting units is controlled.

Abstract: The present invention provides an optical sensor device for equally receiving light signals. The optical sensor device is composed of several optical sensor elements. The whole object of using the optical sensor elements to equally receive light signals depends on the formation of the optical sensor elements at an inclined plane on both sides of a substrate. Or, to make a central beaming pathway by equally increasing the height on both sides of the substrate.

Abstract: The present invention discloses a scanning method by using a virtual frame holder. The method includes using a computer drive scan program to perform a scanning preview, thereby showing an object image pattern on screen. Next, frame holder specification parameters are used. It is judged whether the frame holder specification parameter data source are used. If the judgement is yes, the frame holder specification is selected from the frame holder specification parameters data source. If the judgement is no, a frame holder specification parameter is created from the frame holder specifications. By using the computer a scan area is dragged and the scan position is calibrated automatically by using the drive scan program. Finally, using a drive scan program the object image is scanned.

Abstract: A multi-direction opening lid structure for scanner includes a lid which has a plurality of novel hooks located at the side rims under the bottom surface thereof. The scanner body has a plurality of troughs formed therein to engage with the hooks for the lid to lay horizontally on the scanner body. Any one side of any two parallel sides of the lid may be lifted and opened for the hooks at the opposite side to turn and engage with the body. From the horizontal position laid on the body, the lid may be lifted and opened at any side desired.

Abstract: A changeable resolution apparatus and method for scanner includes two rotational disks which have respectively a plurality of lenses of different focuses and a plurality of charge-coupled devices (CCD) of different resolutions located therein. A motor is provided to drive a transmission shaft to rotate in a positive or a reverse direction. Two one-way shaft bearings are engaged with the transmission shaft to drive the rotational disks one-way in opposite directions for changing lens and CCD combination to reach different resolutions. The apparatus is located in the scanner for users to adjust scanner resolution based on scanning requirements to get optimum resolution result.