Patents Examined by Kim Yen Vu
  • Patent number: 5926562
    Abstract: A film image, which is taken into the developed photographic film, is picked up, and a reference maximum value and a reference minimum value of an image signal are determined by the image signal which is obtained when the image is picked up. The reference maximum value and the reference minimum value are used in the signal processing for adjusting the tone of the image, etc. Moreover, the exposure state of the film image is determined based on at least one of the reference maximum value, the reference minimum value, and the average value. If the exposure state is determined to be underexposured, the gamma in the gamma correction is smaller than the gamma during the standard exposure, so that the middle tone can be prevented from being dark. On the other hand, if the exposure state is determined to be overexposured, the gamma in the gamma correction is larger than the gamma during the standard exposure, so that the middle tone can be prevented from being too bright.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: July 20, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Manabu Hyodo, Hiroshi Tanaka
  • Patent number: 5926287
    Abstract: An imaging device according to the present invention has: a photometric circuit that detects a brightness of a photographic subject based on a light flux from the photographic subject that passes through a photographic lens; an exposure calculation circuit that calculates an aperture value and a shutter speed based on the detected brightness of the photographic subject; an imaging element that converts the light flux from the photographic subject received on each photo-electric element to an electric signal and outputs the electric signal, the imaging element having a plurality of the photo-electric elements and a micro-lens in which each of micro-lens elements is arranged facing to each of the photo-electric elements in order to converge the light flux from the photographic subject to a light receiving surface of each of the photo-electric elements; and a correction circuit that corrects the aperture value calculated by the exposure calculation circuit so that a signal level of the electric signal of the lig
    Type: Grant
    Filed: August 17, 1995
    Date of Patent: July 20, 1999
    Assignee: Nikon Corporation
    Inventors: Masahiro Suzuki, Tadashi Ohta, Koichiro Kawamura
  • Patent number: 5923447
    Abstract: During a black-and-white image reading mode, for each picture element, outputs from at least two of the light receiving elements of the R, G, and B light receiving elements are added together into color sum data. Whether the picture element presents black or white is determined based on the sum data.
    Type: Grant
    Filed: December 9, 1996
    Date of Patent: July 13, 1999
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Makoto Yamada
  • Patent number: 5917939
    Abstract: A color image processing apparatus is rendered capable, in case of output of a color image, displayed for example on a color display, by an output device such as a hard copying device, of judging the color reproduction range of each output device with a limited memory capacity, by defining the color reproduction range of each output device by the interior of a hexahedron on a uniform color space (L*, a*, b*) and judging whether the input image signal Q is present inside the hexahedron by the product of the input image signal with an internal point P with respect to each plane (i) constituting the hexahedron.
    Type: Grant
    Filed: February 16, 1996
    Date of Patent: June 29, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenichi Ohta, Manabu Ohga, Takashi Yabe
  • Patent number: 5917993
    Abstract: Disclosed is a color image processing apparatus, for converting source data into bit map data of each primary color, used for a color image outputting mechanism for expressing secondary colors by superposing a plurality of primary colors. This color image processing apparatus includes bit map memory having a plurality of planes, provided corresponding to the plurality of primary colors, for storing bit map data of the respective primary colors. A write control circuit is formed with a control area, within an address, for designating the plane on which source data should be written. A data converting circuit for writing the source data is provided in the plane of the bit map memory that is designated by data of this address control area. The write plane is designated within the address, and hence the writing on the plurality of planes can be performed at one time, thereby attaining a high-speed writing process.
    Type: Grant
    Filed: July 11, 1996
    Date of Patent: June 29, 1999
    Assignee: Fujitsu Limited
    Inventors: Seiji Inuyama, Hiroshi Onoue, Masanori Hiraoka
  • Patent number: 5917938
    Abstract: An image processing apparatus of the present invention inputs image data representing an image, discriminates whether the image represented by the input image data is a first predetermined image, and discriminates whether the image represented by the input image data is a second predetermined image different from the first predetermined image, the above-mentioned two discrimination performing discriminating operation parallelly.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: June 29, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahiro Funada, Ken-ichi Ohta, Yoichi Takaragi, Eiji Ohta
  • Patent number: 5917621
    Abstract: There is disclosed an image pickup device comprising plural picture elements, each including plural pixels arranged in the longitudinal direction of the image sensor, wherein the picture elements are so arranged that the separating area between the picture elements has a width larger than the distance between the centers of the pixels mutually adjacent within the picture element. Such arrangement enables high-quality image taking without generation of colored moiree fringes or false colors.
    Type: Grant
    Filed: July 9, 1998
    Date of Patent: June 29, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventor: Akihiko Yushiya
  • Patent number: 5917956
    Abstract: An image processing apparatus comprising binarization means for converting a multi-level color signal into binary form, removal means for removing edge component from the multi-level color signal, based on a binary color signal from said binarization means, and encoder means for encoding the binary color signal from said binarization means and the multi-level color signal having edge component removed with said removal means.
    Type: Grant
    Filed: August 7, 1997
    Date of Patent: June 29, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hidefumi Ohsawa, Yasuji Hirabayashi, Tadashi Yoshida
  • Patent number: 5915036
    Abstract: A method is described for estimating the bone quality of a vertebrate on the basis of two-dimensional image data comprising information relating to the trabecular structure of at least part of a bone of the vertebrate, the image data being data obtained by exposing at least the part of the bone to electromagnetic radiation, the method comprising subjecting the image data to a statistical analysis comprising deriving features from a parametric estimate of a power spectrum and/or deriving features from a transform similar to a distance transform--but in a number of directions.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: June 22, 1999
    Assignee: Eskofot A/S
    Inventors: Michael Grunkin, Knud Erik Fredfeldt, Lars Hyldstrup, Knut Conradsen
  • Patent number: 5912745
    Abstract: An apparatus for dithering an input image to produce an output array for representation on an output device is described. The apparatus includes an input device to store input image pixels having a first plurality of chrominance or luminance levels; a dithering system including a dither template including an M by N matrix of integer threshold values, the uniform distribution of threshold values throughout the dither template possessing homogeneous attributes. The apparatus further includes a normalizer unit for normalizing the threshold values of the dither template for storage in a dither matrix according to the first plurality of chrominance or luminance levels of the input image pixels and a second plurality of chrominance or luminance levels of the output array and a summation unit to add the input image pixel chrominance or luminance values to the normalized threshold values of the dither matrix.
    Type: Grant
    Filed: April 8, 1997
    Date of Patent: June 15, 1999
    Assignee: Digital Equipment Corporation
    Inventor: Robert Alan Ulichney
  • Patent number: 5912743
    Abstract: An order-taking terminal device enables a customer to order food, but can respond rapidly to changes and additions to the menu. When this terminal device starts up, it receives an operating program and image data from main management equipment. The order-taking terminal device stores the thus received operating program and image data and displays a menu screen on a display screen on the basis of the thus stored operating program and image data.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: June 15, 1999
    Assignee: Seiko Epson Corporation
    Inventors: Tadashi Kinebuchi, Hiroyuki Baba, Masanori Konishi, Akihiro Gomi
  • Patent number: 5910848
    Abstract: A facsimile apparatus having a printer interface and a recorder unit usable as a printer, includes an image memory for storing facsimile image data received during an operation as the printer, a key switch for switching an operation mode between a facsimile mode and a printer mode by a switching operation, and a controller for automatically causing the recorder unit to perform an output operation such that the image data stored in the image memory in the printer mode is read out to print received image information by the switching operation of the key switch to the facsimile mode when the facsimile image data is received in the printer mode.
    Type: Grant
    Filed: October 11, 1995
    Date of Patent: June 8, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takeshi Ono
  • Patent number: 5911037
    Abstract: A facsimile apparatus for outputting multiple copies of a received image comprises a receiver for receiving image data and a protocol signal, a detector for detecting the indication of multiple copy output from the protocol signal received by the receiver, a memory for storing the image data received by the receiver, a recorder for recording the received image data stored in the memory and a control circuit for causing the memory to store the received image data in response to the detection by the detector of the indication of the multiple copy output of the image data and, after the reception, causing the recorder to repetitively record the received image data stored in the memory, in a number of copies equal to that designated by the protocol signal.
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: June 8, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takehiro Yoshida
  • Patent number: 5909290
    Abstract: An original-reading device has a first mode of reading an original mounted on an original-mount while moving a scanning unit for scanning the original, and a second reading mode of reading an original being moved while stopping the scanning unit at a predetermined position. The size of the device can be reduced by making the position where the scanning unit stops in the second reading mode within the moving range of the scanning unit in the first reading mode.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: June 1, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventor: Norio Kajiwara
  • Patent number: 5907669
    Abstract: An image forming system has a plurality of image forming apparatuses that are operatively connected so as to communicate image information with each other. Some of the image forming apparatuses carry out image processing in a distributed manner with respect to image information that has been inputted to one of the image forming apparatuses and corresponds to a plurality of pages. Such some image forming apparatuses carry out the image processing for every predetermined pages of the image information in parallel and within processing capacity levels of such some image forming apparatuses. The processing capacity levels fall within a permissible range. Such an arrangement causes (1) to shorten the time required for processing to be carried out within the image forming system and (2) for the image-processed image information to be substantially the same level over the entire pages.
    Type: Grant
    Filed: February 4, 1997
    Date of Patent: May 25, 1999
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Syoichiro Yoshiura, Hidetomo Nishiyama, Yasuhiro Nakai
  • Patent number: 5907411
    Abstract: An optical, multi-resolution scanning apparatus for scanning transparent or opaque objects including a high resolution lens, a low resolution lens, a flip mirror switch which alternates between high resolution mode and low resolution mode of scanning, a flip mirror switch which alternates between transmissive mode and reflective mode of scanning whereby high and low resolution scanning of opaque and/or transparent objects may be accomplished through movement of flip mirror switches, without transverse movement of the lens assembly.
    Type: Grant
    Filed: July 17, 1996
    Date of Patent: May 25, 1999
    Assignee: Microtek International, Inc.
    Inventor: Loi Han
  • Patent number: 5907632
    Abstract: An image information communication apparatus notifies a remote terminal that an optical character reading process is applicable to image data to be transmitted. The optical character reading process is applied to convert raster image data corresponding to characters into predetermined character code data. Image data obtained by raster scanning an original document is transmitted to the remote terminal through a communication network. Notification information indicating that the optical character reading process is applicable to the image data to be transmitted is sent to the remote terminal prior to the transmission of the image data.
    Type: Grant
    Filed: June 12, 1996
    Date of Patent: May 25, 1999
    Assignee: Ricoh Company, Ltd.
    Inventor: Hironobu Suzuki
  • Patent number: 5905578
    Abstract: A coding apparatus has a quantizer selected from a quantizer group and being used for coding inputted data, a first code amount calculation circuit for calculating a code amount of codes of the inputted data quantized by the quantizer, a prediction circuit for predicting a quantizer among the quantizer group capable of obtaining a target code amount, in accordance with the code amount calculated by the first code amount calculation circuit, the quantizer predicted by the prediction circuit for quantizing the inputted data, a second code amount calculation circuit for calculating a code amount of codes of the inputted data quantized by the predicted quantizer, and a comparator circuit for comparing the code amount calculated by the second code amount calculation circuit with the target code amount.
    Type: Grant
    Filed: December 20, 1995
    Date of Patent: May 18, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akio Fujii, Yoshiki Ishii
  • Patent number: 5903362
    Abstract: A facsimile apparatus equipped with multiple recording sheet feeding devices is provided with a memory for storing information designating the size of a recording sheet to be used for recording a received image. There is a control device for selecting a sheet feeding device from among the multiple sheet feeding devices for recording the received image in accordance with the information stored in the memory and based on the length and width of the received image. The received image is recorded on a sheet of such size as desired and prescribed by a user by a printing mechanism.
    Type: Grant
    Filed: October 2, 1995
    Date of Patent: May 11, 1999
    Assignee: Ricoh Company, Ltd.
    Inventor: Masanori Tanaka
  • Patent number: 5903360
    Abstract: An image processing apparatus and method in which plural gradation-information storage units are provided, and at least one of those units is selected to store a given body of gradation information based on command information, such as resolution information. The different units store gradation information in different forms, e.g., compressed and uncompressed.
    Type: Grant
    Filed: August 1, 1996
    Date of Patent: May 11, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koichi Honma, Hisashi Ishikawa, Hiroshi Atobe