Abstract: An original reading apparatus includes an original feeding unit for feeding the front and back sides of two-side originals in succession to a reading position, a reader unit for reading the original in the reading position, a memory unit for storing the image data of the original read by the reader unit, a read-out unit adapted to read the image data from the memory unit in the continuous order of pages, in case of reading a bundle of originals wherein the pages are so arranged that a side of the original bears the images of N-th and first pages and the other side of the original bears the images of (N-1)-th and second pages, and an output unit for successively outputting or transmitting the image data read by the read-out unit.

Abstract: The present invention relates to a method for reproducing images from precessionary art. The method comprises the steps of converting a piece of precessionary art to a multi-bit pixel depth bitmap, defining a first multi-pixel cell having particular dimensional attributes from the bitmap, determining a gray level for the first multi-pixel cell, dividing the first multi-pixel cell into two groups of alternating pixels with a first one of the groups being nominally on and a second one of the groups being nominally off, and deriving a first derivation cell depicting a maximum apparent gray from the first multi-pixel cell having the two equal groups of alternating pixels.

Abstract: A color image forming apparatus having a function for duplicating an image in two desired colors. A color of an image of an original document is read into color elements of a red (R), a green (G), and a blue (B) color, represented by corresponding image signals R, G, and B, respectively. The image processing unit distinguishes between a first case that the read color is a chromatic color and a second case that the read color is an achromatic color. When the color is distinguished as a chromatic color, the image processing unit converts the color into one of two predetermined colors, each defined by color elements C, M, Y, and K corresponding to image signals C, M, Y, and K, respectively. When the color is distinguished as an achromatic color, the image processing unit converts the color into the other one of the two predetermined colors.

Abstract: A method and apparatus including a facsimile server for a local area network (LAN) configured to automatically transmit information including client addresses to facsimile terminals on public telephone networks. The facsimile server includes a memory configured to store an address list, entries in which contain a calling number, a local number, and a user name, each specifying a same information processing apparatus (e.g., client) on the LAN. The facsimile server is configured to respond to a request for sending the address list. When a source facsimile terminal sends image information to a client of the facsimile server without specifying a calling number for the client, the facsimile server detects that the calling number is missed and automatically sends the address list back to the facsimile terminal so that the facsimile terminal can properly retransmit the image information for a second time while identifying the client in the second transmission.

Abstract: An image sensor head having a CCD is rotatably attached to a card body having a computer interface. A DC/DC converter for supplying the image sensor head with electric power is provided so as to be situated outside and external device, such as a computer, when the card body is loaded in the external device. This facilitates the radiation of heat. A shielding case is provided to cover and shield the DC/DC converter. When the card body experiences deformation, the shielding case contacts a metal cover which covers a main board within the card body, thereby preventing excessive bending and assuring electrical safety. Thus, in a card-type image sensor of the type which introduces an image to a computer or the like, the power supply for image sensing purposes radiates heat more effectively and is provided with improved shielding.

Abstract: A multible value image filtering device selectively filters segments making up an image signal. The selection is made according to the segments' characteristics, such as the optical density or amount of change of optical density between adjacent segments. The characteristics are compared to a threshold which can be changed according to various conditions, such as the type of document being scanned.

Abstract: An image forming apparatus for detecting and eliminating avoidable image reading operations includes a scanner for reading an original document, a memory for storing read image data, a printer for forming an image in accordance with the image data read from the memory, a ten-key pad for inputting instructions specifying a total number of sets of copies to be made, various functions to be performed by the apparatus for changing how the copying is performed and a sample set command by which the apparatus enters into a sample set command mode wherein one copy of the original document is output as a sample copy, and a controller for determining whether to use the image previously stored in the memory to output the rest of the total number of sets of copies to be made or performing an operation of reading the original document again depending upon types of functions input via the ten-key pad during the sample set command mode.

Abstract: An image reader, which is capable of reading tone effects of a document precisely and can be miniaturized, includes a document glass, a light source for illuminating the document, an optical system for image formation of a reflected light from the document, an image reading section, a carriage, a driving motor for driving the carriage, a vertical scanning white reference board disposed outside an area, in which the document is mounted, within a range of reading and at least arranged apart from the carriage in a direction toward the document glass, a vertical scanning shading correction arrangement for correction to keep an image signal level at a constant level, and a locating section for locating a position in a horizontal scanning direction of the vertical scanning white reference board, whereby tone effects of the document can be read precisely and the image reader be miniaturized.

Abstract: An apparatus and method for reproducing a color image of an original color image. The apparatus and method produces a saturation range of color light in the original color image and reproduces a saturation range of an output device. The invention then calculates maximum saturation ranges covering the saturation range of the color light and the reproduced saturation range of the output device corresponding to each lightness. According to the maximum saturation range of the color light and the maximum reproduced saturation range of the output device corresponding to each lightness, the apparatus and method calculates a saturation compression rate for analogously compressing the saturation range of the color light into the reproducing saturation range, and performs a saturation compression on the original color image using the calculated saturation compression rate. A reproduced color image is then generated based on the performed saturation compression.

Abstract: In processing an image represented by binary data and an image represented by multivalue data, multivalue picture information is converted into a binary pattern corresponding to a value of the multivalue picture information, and stored in a memory. A binary pattern corresponding to multivalue picture information is detected from binary picture information stored in the memory to recover the original multivalue picture information.

Abstract: An image processing apparatus applied to an image processing system wherein a plurality of image input units and a plurality of image output units are used. A spatial frequency characteristic conversion section receives a spatial frequency characteristic in a preparation process of image data from an image input unit or its driver and a spatial frequency characteristic of a selected image output unit from an output device information storage section. An ideal transfer characteristic of the whole system is previously stored in the spatial frequency characteristic conversion section and a transfer function of the spatial frequency characteristic conversion section itself is set so as to realize the ideal transfer characteristic.

Abstract: A facsimile device of the present invention includes: a memory for storing a source facsimile number corresponding to an information source which has a piece of or a plurality of pieces of information, a plurality of broadcast facsimile numbers corresponding to a plurality of broadcast receivers, and a procedure by which information is extracted from the plurality of pieces of information of the information source; a dialer dialing the source facsimile number corresponding to the information source so as to communicate with the information source; and a controller extracting the information from the plurality of pieces of information of the information source based on the procedure for extracting the information and allowing the information to be stored in the memory, wherein the dialer dials a broadcast facsimile number corresponding to one of the plurality of broadcast receivers after a lapse of a predetermined time so as to communicate with the one of the plurality of broadcast receivers, and the controlle

Abstract: Described herein is a method of scanning an image formed on a color filter array film using a monochrome scanner. The image forming layer of the film is chosen so as to have a maximum density which occupies a small portion of the dynamic density range of the scanner, the excess density range of the scanner being used to decode the colors of the color filter array.

Abstract: A method and apparatus is provided for controlling the function of document processing machines such as copying machines and facsimile machines. Control data is submitted to a controller in a two-dimensional symbology having error correcting capability. The control data is decoded and used to process a plurality of documents without the need of a manual keying of instructions by an operator controlling the document processing machine.

Abstract: An image-scanning apparatus for scanning an original in an image-reading area to output image data, includes, a platen on which the original is placed, a reference plate which has a reference color, and a scanning device for optically scanning the reference plate and the original placed on the platen to provide a first optical image and a second optical image.

Abstract: A simplified transmission mechanism is provided for an image information apparatus. The transmission mechanism mainly includes a first pair of supports for guiding an illuminating unit, a second pair of supports beneath and parallel to the first pair of supports for guiding a photoelectric converting unit, four pulleys each located at the corners and on the same side of a housing, and a conveying device surrounding four pulleys in the shape of a closed loop for driving the illuminating unit to slide along the first pair of supports in a first direction and the photoelectric converting units to slide along the second pair of supports in a second direction at the same time and at the same speed.

Abstract: In recording a received image in an image communication apparatus, there is discriminated whether the received image is to be recorded as a color image or as a monochromatic image, then determined, according to the result of the discrimination, which of plural recording members is to be supplied, also the mutually different plural recording members are selectively supplied according to the determination, and the received image is recorded on thus supplied recording member. In this manner it is rendered possible to preferentially select an optimum recording member for monochromatic image recording and another for color image recording, thereby improving the image quality in case of color image recording and reducing the running cost in case of monochromatic image recording.

Abstract: An image processor determines a binarization threshold value used for binarizing a multi-valued image, and performs binarization processing on the multi-valued image. The multi-valued image is input line-sequentially, the binarization threshold values are determined sequentially in units of predetermined size blocks each including a plurality of pixels, and the multi-valued image data is binarized line-sequentially. The inputting of data, determining the threshold value, and binarization of the multi-value image data is performed by pipeline processing.

Abstract: In a facsimile apparatus having a facsimile modem function for a personal computer to perform communications through the facsimile apparatus, the changeover between a facsimile mode and a facsimile modem mode is automatically made based on whether an AT command is transmitted from the personal computer or not. When an AT command is received while the facsimile apparatus is in the standby state in the facsimile mode, the operation mode is changed to the facsimile modem mode to execute the command. When no AT command is received within a predetermined period of time after the execution of the AT command, the operation mode is returned to the facsimile mode. In changing the mode, the facsimile apparatus is disconnected from the telephone line.

Abstract: A scanning apparatus for scanning and reading a luminescent pattern of a sample in a flat-plate shape, having a placing member for placing the sample as an object for reading; a light condensing member for condensing light emitted from the luminescent pattern of the sample; a movement member for moving the light condensing member relative to the placing member; a light receiving member for dividing the light of the luminescent pattern of the sample condensed by the light condensing member into predetermined segments and receiving the light by scanning the light from the segments in a one-dimensional way; a photoelectrical conversion member for converting optical signals of the light received by the light receiving member into electrical signals; a control member for controlling a scan by the light receiving member in accordance with the electrical signals from the photoelectrical conversion member; and a data processing member for converting the electrical signals from the photoelectrical conversion member in