| Patent Number |
Title Of Patent |
Date Issued |
| RE37378 |
Reader with high-resolution mode and high-speed mode |
September 18, 2001 |
| A reader having a high-resolution mode and a high-speed mode is disclosed. The reader comprises a CCD sensor, a buffer, a first AD convertor, a second AD convertor, a data selector and a control circuit. The input of the buffer is connected to the CCD sensor through a capacitor and a 5 V |
| 7042584 |
Complex image processing apparatus |
May 9, 2006 |
| It is an object of the invention to allow effective use of a memory provided for each function in a complex image processing apparatus including a facsimile apparatus, to increase the reception capacity of a memory reception function when the apparatus works as a facsimile apparatus |
| 6160636 |
Image reading apparatus |
December 12, 2000 |
| An original is moved by a feed motor so as to read the original by the combination of a light source and a CCD. The image information thus read is stored into the memory. The image information stored in the memory is sent out via a modem to the phone line. The amount of data stored in th |
| 5920408 |
Color image reader |
July 6, 1999 |
| A compact color image reader for scanning an image in a short time is disclosed. The color image reader includes three fluorescent lamps 17 of red, green, and blue, a lighting circuit 15 for lighting the three fluorescent lamps sequentially, a CCD 183 for reading an image illuminated |
| 5687003 |
Reader with high-resolution mode and high-speed mode |
November 11, 1997 |
| A reader having a high-resolution mode and a high-speed mode is disclosed. The reader comprises a CCD sensor, a buffer, a first AD convertor, a second AD convertor, a data selector and a control circuit. The input of the buffer is connected to the CCD sensor through a capacitor and a 5 V |
| 5594489 |
Thermal recording apparatus with a thermal head including energizing time controlling |
January 14, 1997 |
| A thermal recording apparatus includes a thermal head. Printing for multi-tone density is performed by changing an energizing time of the thermal head. The apparatus has a controller for controlling the energizing time and an interrupting circuit. The controller controls the energizi |
| 5585834 |
Thermal recording apparatus with controlled energizing time |
December 17, 1996 |
| A thermal recording apparatus includes a thermal head. Printing for multi-tone density is performed by changing an energizing time of the thermal head. The apparatus has a controller for controlling the energizing time and an interrupting circuit. The controller controls the energizi |
| 5483357 |
Image scanning device |
January 9, 1996 |
| An image scanning device has a light source for emitting a beam, a CCD circuit board having a CCD sensor, an optical unit for guiding the emitted beam from the light source to the CCD sensor, a CCD sensor driving circuit connected with the CCD circuit board with a signal cable, a clock |
| 5455412 |
Document scanner employing a test chart to correlate the independent motion of the light source |
October 3, 1995 |
| A scanner is so arranged that a quantity of light reaching a CCD sensor can be kept constant with a change in reading position. In case a light source and a reading optical unit are driven independent of each other, variations in feed amount inevitably occur. To deal with it, a test char |
| 5426291 |
Reader with A/D conversion and high precise and high speed modes |
June 20, 1995 |
| Each of even series outputs of a CCD is clamped by a third capacitor and a fifth transistor in a high precise mode of a reader. Each of odd series outputs of the CCD is clamped by a first capacitor and a second transistor. The clamped odd and even series outputs are converted to digi |
| 5362161 |
Power source compensation for printer |
November 8, 1994 |
| A power source for a printer has a power source unit for supplying power to the printer and lead wires for electrically connecting the power source unit to the printer. The power source unit includes a compensating circuit for compensating a reduction in voltage applied to the printer fr |
| 5168377 |
Self-running scanner for optically reading images |
December 1, 1992 |
| Provided is a self-running type scanner including a movable scanner unit and a running guiding and assisting plate mounting the scanner unit for guiding running of the scanner unit. The movable scanner unit includes an illuminating light source, a step motor for running the scanner unit, |
| 5166811 |
Image data processing apparatus |
November 24, 1992 |
| An image data processing apparatus is provided for crisply reading a dark portion on an original. The image data processing apparatus includes a light source for applying a light ray to an original, a CCD sensor for receiving a light reflected by the original, converting the light into a |
| 5136402 |
Read-out apparatus for solid state imaging device and image scanner using the same |
August 4, 1992 |
| A read-out apparatus for a solid state imaging device having a plurality of photoelectric converter elements which convert image into photoelectric charges and store the photoelectric charges, respectively. The apparatus includes a shift register for shifting charges, transferred from th |
| 5126860 |
Optical reading apparatus |
June 30, 1992 |
| An optical reading apparatus which can read both transparent and reflective originals is disclosed. The apparatus comprises: a transparent plate for supporting on the upper face an original from which information is to be read; a light source disposed below the plate; and optical reading |
| 5122872 |
Picture data memory system for storing both black and white and color picture data with differen |
June 16, 1992 |
| In view of the memory or storage disadvantage inherent in conventional picture data memory systems, a picture data memory system provides a system with simplified memory control which equalizes the amounts of the color and black/white picture element data by reducing the resolution of |
| 5067168 |
Reader for original documents and method |
November 19, 1991 |
| A reader for reading light reflected from or transmitted through an original document includes an adjustment apparatus for detecting the white level of an analog signal from the original document. The detection is performed before reading of the original document. The detection level is |
| 4947086 |
System for lighting fluorescent lamps |
August 7, 1990 |
| A system for lighting fluorescent lamps, includes a plurality of fluorescent lamps, a transformer for generating filament voltage and a starting voltage for the fluorescent lamps, a switching circuit for sequentially and periodically opening and closing a plurality of its contacts an |
| 4926252 |
Color image reading and recording apparatus and its image recording method for recording full co |
May 15, 1990 |
| A color image reading and recording apparatus comprises three light source corresponding to blue, green and red colors disposed at one side opposite to the side of the original to be read. A CCD image sensor is used to obtain signals corresponding to the blue, green and red components of |
| 4910589 |
Method of converting light data to color data with use of matrix coefficients |
March 20, 1990 |
| A color converting method in a color image reading apparatus operable to read image information by optically scanning a color transcript, which method comprises the steps of dividing a color space determined by light data of R, G and B into n areas, at the time light data of R, G and B |
| 4910533 |
Color thermal printer |
March 20, 1990 |
| A color thermal printer of a type which utilizes any one of ink ribbons of different color combination, which comprises a different identifiers provided on and peculiar to each of the different ink ribbons and descriptive of the color combination of the respective ink ribbon; and a d |
| 4845531 |
Image reading apparatus |
July 4, 1989 |
| An image reading apparatus for reading a transparent film has a light source, an exchangeable adjusting board corresponding to the transmission factor of the film, an imaging device for receiving and imaging the light passing through the adjusting board and the film, a comparison functio |
| 4809083 |
Image reading and/or recording apparatus with enlarging and reducing function |
February 28, 1989 |
| A method of enlarging or reducing an image at a desired magnification in an image reading and/or recording apparatus. The feature of the present invention resides in first deciding the integral part a and the decimal part d of a value A corresponding to the desired magnification Z, then |
| 4731661 |
Color document reader with white balance adjuster for determining light emission periods for a p |
March 15, 1988 |
| A color document reader comprises a plurality of different-colored light sources which sequentially illuminate a color document, and a light sensor which receives light reflected from the document. Prior to reading the document, a white balance operation is performed by sequentially |
| 4707706 |
Thermal color recording apparatus |
November 17, 1987 |
| A thermal recording apparatus including a thermal head provided with a plurality of heating elements each having a predetermined value of resolution in a feed direction of a recording paper sheet, and a printer control circuit having first and second feed control members for feeding, |
| 4691228 |
Image reader |
September 1, 1987 |
| In this invention there is disclosed a color image reader being able to read in three modes, a black and white mode, a color mode and a dropped color mode. The reader includesthree fluorescence lamps for illuminating a document to be read, each lamp having their own peaks in red, green a |
| 4687919 |
A lighting control device in manuscript reproduction equipment |
August 18, 1987 |
| A lighting intensity control device that controls light intensity in a manuscript reproduction apparatus includes a back plate which has a manuscript area on which a manuscript can be disposed and a monitor area outside the manuscript area; a source of light which illuminates the man |
| 4670779 |
Color-picture analyzing apparatus with red-purpose and green-purpose filters |
June 2, 1987 |
| A color-picture reading apparatus comprises blue, red-purpose, and green-purpose fluorescent lamps, a red filter in front of the red-purpose lamp for solely passing the red radiation, a green filter in front of the green-purpose lamp for solely passing the green radiation, and a circuit |
| 4663566 |
Fluorescent tube ignitor |
May 5, 1987 |
| The preferred embodiment provides such a fluorescent tube ignitor having a plurality of auxiliary electrodes provided in the periphery of the tube wall of each fluorescent tube, while the potentials of these auxiliary electrodes are set at a specific level equal to or lower than those of |
| 4658303 |
Image reading apparatus |
April 14, 1987 |
| An image reading apparatus comprising a lighting control means, an analog shift means, a transfer control means and a clock pulse control means. According to the controlling operation of a lighting control means for lighting the light source during a given time period, the output of the |
| 4658289 |
Color-picture analyzing apparatus for continuously switching-on green lamp and for alternatively |
April 14, 1987 |
| A color-picture analyzing apparatus includes a blue, green, and red-purpose lamps, preferably, fluorescent lamps; a sharp-cut filter in front of the red-purpose lamp for solely passing the red radiation; an infrared-cut filter interposed between a document having a color-picture to be an |
| 4654723 |
CCD sensor output circuit of image reading apparatus |
March 31, 1987 |
| A CCD sensor output circuit of an image reading apparatus adapted to output a stable reading signal from a CCD sensor even if the light source changes in temperature due to heating. One portion of a region read by the CCD sensor serves as a reference region. In accordance with the output |
| 4642679 |
Color image reading apparatus |
February 10, 1987 |
| A color image reading device for reading an original by an optical scanning device which optically scans across said original line-by-line is disclosed. The color image reading device includes a green fluorescent lamp for generating a green light with an afterglow characteristics, a red |
| 4620236 |
Image picture reading device |
October 28, 1986 |
| In an image picture reading device having a light source to irradiate an original copy, a series of sensors arranged in a line for detecting densities of small areas of the original copy by light reflected from the original copy, a reading circuit for sequentially outputting signals for |
| 4554563 |
Drive system in a multi-pin-electrode electrostatic recording apparatus |
November 19, 1985 |
| A multi-pin-electrode electrostatic recording system includes a recording head having 2048 pin electrodes aligned in a line and 65 pairs of auxiliary electrodes positioned near the pin electrodes. A negative recording pulse is applied to a selected pin electrode when a positive recor |
