Patents Assigned to Mustek Systems Inc.
  • Patent number: 6879412
    Abstract: The present invention provides a method and an apparatus for fast finding the best resolution of an optical scanning device during assembling steps. The present invention improves the graphics of the calibration device. Accompanying with calculation of an adjustment device, the present invention generates a referencing parameters. The parameters represent the resolution of the optical scanning device; and further is able to show the balance of horizontal resolution and the balance of vertical resolution. In this case, technicians can optimize the best position of the lens in order to build an optical scanning with precision and narrow the misalignment during assembly.
    Type: Grant
    Filed: August 10, 2000
    Date of Patent: April 12, 2005
    Assignee: Mustek Systems Inc.
    Inventors: Jenn-Tsair Tsai, June-Num Chen
  • Patent number: 6856347
    Abstract: The present invention relates to a photic image processing method which includes steps of (1) processing a photic image unit to generate a photic image signal having a plurality of basic image signals, (2) performing a first regulating compensation to each of the basic image signals of the photic image to generate a first compensated basic image signals in order to equilibrate the basic image signals of the photic image signal, (3) multiplexing the first compensated basic image signals in a period of time to generate a multiplexed photic image signal having the compensated basic image signals in series in the period of time, wherein the period is equal to a time of processing a photic image unit, and (4) performing a second regulating compensation for the multiplexed photic image signal to generate a second compensated multiplexed photic image signal. The photic image processing method disclosed in this disclosure is capable of producing a photic image having high resolution and quality.
    Type: Grant
    Filed: February 8, 2000
    Date of Patent: February 15, 2005
    Assignee: Mustek Systems, Inc.
    Inventor: Peen-Pau Cheng
  • Patent number: 6850344
    Abstract: A transparent scanning apparatus is mounted on a cover of a flatbed scanner for scanning a transparent document by reflective scanning or transparent scanning. The apparatus comprises a transparency adapter secured to the cover, a plurality of frames for fixing article, an opaque box for receiving the frames, and a fastening means for releasable securing the transparency adapter to the box and entirely covering the window of the transparency adapter when the box is secured to the transparency adapter.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: February 1, 2005
    Assignee: Mustek Systems Inc.
    Inventor: Chun-Ying Chang
  • Publication number: 20050015727
    Abstract: A system with driving a peripheral device for downloading information over a communication network is installed into an electrical device, which includes a processing unit, an input unit, a display unit and a communication unit. The system has a driving and information-downloading module and a user interface module. Under the operation of the driving and information-downloading module, the electrical device can retrieve and download the information from a predetermined destination and drive a peripheral device, such as a scanner to scan under the command of the user at the same time.
    Type: Application
    Filed: June 28, 2004
    Publication date: January 20, 2005
    Applicant: Mustek Systems Inc.
    Inventor: Tiffany Chen
  • Patent number: 6842269
    Abstract: The image reading device includes a scanning module and a light interference module. The user may use the light interference module to interfere the light path to trigger the scanning processes from a standby mode. When the light path is interfered, the image sensor would generate different image signal output. In this case, by detecting the difference of image signal output pattern, the image reading device would be triggered to load specific scanning control parameters to perform the scanning, such as starting the scanning programs and driving the scanning module to an initial position for completing the scanning.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: January 11, 2005
    Assignee: Mustek Systems Inc.
    Inventors: Hsi-Min Chen, Te-Chih Chang, Dai-Li Chang
  • Patent number: 6816612
    Abstract: This specification discloses a multi-mode image processing method and the corresponding system. Multiple modes, including line art, gray level, and colors, are used to capture and store image information. An image capture device is used to capture a preliminary color image. An image analyzing device divides the preliminary color image into line art image areas, gray-level image areas, and color image areas. The image capture device captures an advanced line art image, an advanced gray-level image, and an advanced color image. Users can select the line art image areas, the gray-level image areas, and the color image areas in order to obtain the advanced line art image, the advanced gray-level image, and the advanced color image, respectively. An image storage device stores the multi-mode image information into a multi-mode image file.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: November 9, 2004
    Assignee: Mustek Systems Inc.
    Inventors: Jewel Tsai, Nora Wen
  • Patent number: 6809842
    Abstract: The present invention provides an image scanning device having an upper housing and a lower housing. The upper hosing includes at least a scanning module for outputting digitalized image signals. Thus, a user can place a document facing up on a document plate and therefore be able to examine the wrinkles, alignment and inclination.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: October 26, 2004
    Assignee: Mustek Systems Inc.
    Inventors: Jenn-Tsair Tsai, Jone-Nun Chen, I-Chang Lu
  • Patent number: 6771401
    Abstract: A light source module arranged in an image scanning device having a scanning platform and an image-pickup module for scanning a transparent object is disclosed, The light source module includes a cover, a light source mounted in the cover for emitting light to the scanning platform for scanning a transparent object, a RGB filter mounted between the light source and the scanning platform for filtering off the light into RGB lights, a switching mechanism connected to the RGB filter for being controlled to alternately allow one of RGB lights to be transmitted to the scanning platform, and a transmission mechanism for carrying the light source, the RGB filter, and the switching mechanism to move with the image-pickup module for accomplishing the scanning operation to the transparent object.
    Type: Grant
    Filed: January 3, 2001
    Date of Patent: August 3, 2004
    Assignee: Mustek Systems Inc.
    Inventor: Emily Chen
  • Patent number: 6762864
    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.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: July 13, 2004
    Assignee: Mustek Systems Inc.
    Inventor: Will Kao
  • Patent number: 6757023
    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.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: June 29, 2004
    Assignee: Mustek Systems Inc.
    Inventors: Cheng-Pang Chien, Kun-Shan Tsai, Tian-Quey Lee
  • Patent number: 6747637
    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.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: June 8, 2004
    Assignee: Mustek Systems Inc.
    Inventors: Kuei-Hsiang Chen, Cheng-Pang Chien, Tian-Quey Lee
  • Patent number: 6734998
    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.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: May 11, 2004
    Assignee: Mustek Systems Inc.
    Inventors: Yu-Fen Tsai, Te-Chih Chang
  • Patent number: 6728011
    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.
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: April 27, 2004
    Assignee: Mustek Systems Inc.
    Inventor: Jenn-Tsair Tsai
  • Patent number: 6721074
    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.
    Type: Grant
    Filed: May 13, 1999
    Date of Patent: April 13, 2004
    Assignee: Mustek Systems Inc.
    Inventor: Will Kao
  • Patent number: 6721072
    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.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: April 13, 2004
    Assignee: Mustek Systems Inc.
    Inventors: Jenn-Tsair Tsai, Albert Lu, Emmet Chen
  • Publication number: 20040068334
    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.
    Type: Application
    Filed: September 9, 2003
    Publication date: April 8, 2004
    Applicant: Mustek Systems Inc.
    Inventors: Michael Tsai, Roger Huang
  • Patent number: 6710899
    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.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: March 23, 2004
    Assignee: Mustek Systems Inc.
    Inventors: Ching-Fu Chung, Yu-Wen Lee
  • Patent number: 6707583
    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.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: March 16, 2004
    Assignee: Mustek Systems Inc.
    Inventors: Jenn-Tsair Tsai, Jone-Nun Chen, I-Chang Lu
  • Patent number: 6694062
    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.
    Type: Grant
    Filed: August 5, 1999
    Date of Patent: February 17, 2004
    Assignee: Mustek Systems, Inc.
    Inventor: Shu-Fen Yang
  • Publication number: 20040015875
    Abstract: A command conversion interface between an image provider and an image requestor is disclosed. When the command conversion interface detects and determines the activation of a specific hard key of the image provider, digital image information from the image provider is provided for the image requestor through the command conversion interface to execute a designated task. In the command conversion interface, the designated task is interpreted by a destination command script, and the destination command script is processed by a compiler along with the digital image information, then transmitted to the image requestor to execute the task. The relationship between the specific hard key and the designated task refers to a correlation table of the command conversion interface.
    Type: Application
    Filed: May 21, 2001
    Publication date: January 22, 2004
    Applicant: MUSTEK SYSTEMS INC.
    Inventors: Jack Chen, Jewel Tsai, Nora Wen