Patents Examined by Thomas L. Stoll
  • Patent number: 5717843
    Abstract: An image recording apparatus including a document size detection sensor for recognizing a size of an image to be recorded, an image input section for reading and storing therein the image to be recorded, a paper feeder for feeding recording paper having a specified size, an image forming section for forming an image on recording paper fed from the paper feeder, a control means for calculating a number of sheets of recording paper to be recorded from said total number of pages, an image processing section for executing image processing for displacing a central position of each image so that an edge section of each image will be aligned to an edge of a binding space of each discrete sheet of recording paper, and an image output section for outputting an image processed by the image processing section 108.
    Type: Grant
    Filed: September 21, 1995
    Date of Patent: February 10, 1998
    Assignee: Ricoh Company, Ltd.
    Inventors: Yasuhiro Tabata, Koji Hikawa, Yoshimasa Honda, Soukichi Araki, Hiroshi Hosaka, Yuichi Deguchi, Naoko Kudo, Takakazu Nomura, Eiji Sawamura
  • Patent number: 5710640
    Abstract: A white-level correction circuit for an analog-to-digital converter which converts an analog image signal of a pixel, which is input from an external source, to digital image data based on white-level reference voltage and black-level reference voltage inputs. The white-level correction circuit stores white-level reference data for the pixel in a memory and reads the data from the memory in synchronization with the input of the analog image signal. A digital-to-analog converter converts the read white-level reference data to an analog signal comprising the white-level reference voltage. The digital image data is decoded and white-level reference voltage correction data is generated by correcting the read white-level reference data, based on the decoded digital image data, and the white-level correction data is stored in the memory.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 20, 1998
    Assignee: Fujitsu Limited
    Inventor: Akio Suzuki
  • Patent number: 5710638
    Abstract: An image processing system with a buffer memory for use in a facsimile device. An image processing apparatus comprising an image read unit for operating continuously to read an image on an original document, a buffer memory for temporarily storing image data of the image on the original that is read by the image read unit, a compressing unit for compressing the image data stored in the buffer memory into code data, and a buffer memory controller for controlling the operation of writing the image data into the buffer memory and the operation of reading the image data from the buffer memory. The image data processing device with buffer memory, which can continuously operate an image input terminal and/or an image output terminal, using a buffer memory which has a less number of the memory elements than a page memory.
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: January 20, 1998
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Susumu Yamamoto, Toshio Nakada, Toshifumi Nakamura, Gen Okabe
  • Patent number: 5706103
    Abstract: An image processing device comprises an encoder for encoding inputted image data in the form of fixed length compression. The encoded data encoded in the form of the fixed length compression by the encoder is stored in a hard disk through an encoded data buffer which is a toggle buffer. Accordingly, the image data can be stored in the hard disk at a constant speed, and a capacity of the encoded data buffer can be minimized since the data amount after data compression is decided. As a result, it is not necessary to provide a semiconductor memory corresponding to storage of one screen, so that a low cost image processing device is obtained.
    Type: Grant
    Filed: March 28, 1995
    Date of Patent: January 6, 1998
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Narihiro Matoba, Masaru Onishi
  • Patent number: 5703696
    Abstract: An image memory apparatus includes a unit for storing input image information, a unit for designating a storing capacity of the storing unit for the input image information, and a control unit for performing storing control of the storing unit for the input image information in accordance with an instruction from the designating unit.
    Type: Grant
    Filed: August 10, 1994
    Date of Patent: December 30, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masanori Sakai, Toshihiro Kadowaki, Naoto Arakawa, Tetsuya Ohnishi
  • Patent number: 5699132
    Abstract: A cathode-ray-tube display device has a cathode-ray tube enclosed in a front cabinet and back cabinet. The cathode-ray tube has peripheral lugs with holes. The front cabinet has front bosses with elongate members that extend backward through the holes in the lugs. The back cabinet has back bosses that extend forward and terminate in ends with front cavities, which receive the ends of the elongate members. The front cabinet is fastened to the back cabinet by screws that are driven through holes in the back bosses and into tapped holes in the elongate members. The lugs are held between the front and back bosses, thereby securing the cathode-ray tube to the front and back cabinets.
    Type: Grant
    Filed: December 27, 1994
    Date of Patent: December 16, 1997
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Ryoto Adachi, Christopher James Reith
  • Patent number: 5696626
    Abstract: A photosensitive chip, such as used in a scanner or facsimile, defines a linear array of photosites, each photosite being covered with a filter formed from a cured translucent liquid. At the critical ends of the chip, between the end photosite in the array and the edge of the chip, there is provided a ridge which protrudes over the thickness of the filter. This ridge maintains the physical integrity of the filter.
    Type: Grant
    Filed: October 12, 1995
    Date of Patent: December 9, 1997
    Assignee: Xerox Corporation
    Inventors: Paul A. Hosier, Jagdish C. Tandon, Josef E. Jedlicka, Brian T. Ormond
  • Patent number: 5682254
    Abstract: An image combining printer, capable of producing a highly intelligible image combination print having explicit colors and shapes, includes: a scanner for reading colors of an original image from a negative film; a color identifier for estimating positive colors on a finished print from the color data of the scanner; a color area determining element for determining the size of a color area to be exposed a multiple number of times in accordance with a scale of enlargement; a vertical position detector for detecting a vertical position data which represents the upward and downward positioning of the original image in the negative film; a vertical position determining element for determining the vertical position of the original image from the vertical position data of the vertical position detector; an exposure element for exposing a photosensitive material to the original image projected from the negative film; a multiple exposure condition determining element for determining the location, orientation, and colo
    Type: Grant
    Filed: July 28, 1995
    Date of Patent: October 28, 1997
    Assignee: Noritsu Koki Co., Ltd.
    Inventor: Tohru Tanibata
  • Patent number: 5673120
    Abstract: An image output device includes a tone pattern generator 33 of an image processing portion 3 which, on the basis of image data representing border positions of a plurality of regions of an image divided according to density values thereof, generates a tone dot pattern corresponding to the density value of the region, a closed region assigning circuit 32 for assigning a closed region on an image memory corresponding to the resolution d of the respective closed region of the image, and a filling out processing circuit 34 writes the tone dot pattern in the assigned closed region as image data having the resolution d.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: September 30, 1997
    Assignee: NEC Corporation
    Inventor: Shuji Fujii
  • Patent number: 5668612
    Abstract: A pivotable protective screen structure which is height-adjustable and forward/backward shiftable. The protective screen structure includes a base body, a protective screen body and two support racks. The base body is formed with a slot passing through the entire base body and two pairs of slide channels disposed on two sides of the slot. In each pair of the slide channels are disposed opposite engaging teeth. The protective screen body includes a protective screen and a frame body framing the protective screen. Two shaft rods are disposed on two sides of the frame body. The support rack has two horizontal support levers defining a clearance therebetween and formed with upper and lower engaging teeth for engaging with the engaging teeth of the slide channels of the base body. The support rack further has a vertical rectangular hanging frame connected to front ends of the support levers and communicated with the clearance thereof.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: September 16, 1997
    Inventor: Wang-Ho Hung
  • Patent number: 5661575
    Abstract: The gradation correction device includes a luminance signal convertor to generate a luminance signal from the input R, G, B signals, a correction coefficient calculator which calculates the ratio to the luminance signal of the luminance signal after gamma correction to the predetermined gradation characteristics, and a multipliers to multiply the output from the correction coefficient calculator by each of the R, G, and B input signals. When the gradation correction is applied, effective brightness adjustment can be applied with no change in hue and saturation and without exceeding the dynamic range of a device.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: August 26, 1997
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Haruo Yamashita, Hideshi Ishihara, Yasuki Matsumoto
  • Patent number: 5661567
    Abstract: A complex recording apparatus includes a housing. A platen glass is provided at an upper portion of the housing, and an exposure lamp which reads a first original put on the platen glass is provided within the housing. Furthermore, above the housing, a platen cover which holds the first original put on the platen glass and a reading head which reads a second original supplied from an outside are independently provided.
    Type: Grant
    Filed: September 16, 1994
    Date of Patent: August 26, 1997
    Assignee: Sanyo Electric., Ltd.
    Inventors: Yukiya Maeda, Shuuji Watanabe, Koji Tokura, Naoyuki Kikuchi, Shigeru Tanabe
  • Patent number: 5661569
    Abstract: A facsimile adapter unit which is coupled to a host system and a line and used for communicating between the host system and a station coupled to the line. The facsimile adapter unit includes a decoder for decoding image data which is transmitted from the station via the line and for outputting decoded image data, an error detection unit for detecting an error in the decoded image data, and a processing unit for sending the host system the decoded image data when the error detection unit does not detect the error in the decoded image data and, when the error is detected, for sending the host system information representing that an error is generated in the decoded image data instead of the decoded image data in which the the error is detected.
    Type: Grant
    Filed: March 4, 1991
    Date of Patent: August 26, 1997
    Assignee: Ricoh Company, Ltd.
    Inventor: Kazunobu Yamanaka
  • Patent number: 5659407
    Abstract: To reduce rendering time for an image to be generated, an image to be generated, such as a page of a document, is divided into non-overlapping regions. Within each region, a determination is made whether all of the data contained therein is achromatic. If so, achromatic data is rendered for a single component of a multi-component color space. Pixel values are stored in one section of a frame buffer that relates to the single component. The other components of the color space use multiple references to the pixel data stored in this one section, rather than being separately rendered.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: August 19, 1997
    Assignee: Apple Computer, Inc.
    Inventors: Kevin W. Andresen, Robert C. Fishman, Ted W. Walker
  • Patent number: 5638185
    Abstract: In a mobile facsimile machine capable of sending and receiving messages through a transmitter and receiver, respectively, a first memory is provided for memorizing the identification of a sender when receiving signals. A second memory is provided for memorizing the position of the last signal received should communication be disconnected or disrupted during reception. A calling device automatically calls the sender using the identification in the first memory and sends the position of the signal at disruption from the second memory so the sender can retransmit from the point of disruption.
    Type: Grant
    Filed: June 7, 1996
    Date of Patent: June 10, 1997
    Assignees: Aisin Seiki Kabushiki Kaisha, Kabushiki Kaisha Shinsangyokaihatsu
    Inventors: Hideharu Kato, Yoshihiro Naruse
  • Patent number: 5629780
    Abstract: A method for performing color or grayscale image compression that eliminates redundant and invisible image components. The image compression uses a Discrete Cosine Transform (DCT) and each DCT coefficient yielded by the transform is quantized by an entry in a quantization matrix which determines the perceived image quality and the bit rate of the image being compressed. The present invention adapts or customizes the quantization matrix to the image being compressed. The quantization matrix comprises visual masking by luminance and contrast techniques and by an error pooling technique all resulting in a minimum perceptual error for any given bit rate, or minimum bit rate for a given perceptual error.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: May 13, 1997
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: Andrew B. Watson
  • Patent number: 5619343
    Abstract: A method and apparatus in which images on the front and back sides of a double-sided original are serially connected on one scanning line, subjected to image processing and converted into binary image data, and immediately separated into the front and back side images again. One of the front and back side images is compressed and transferred to a SCSI bus, and the other is temporarily stored in a graphic video RAM and can be displayed or printed. After the former image is completely compressed and transferred, the latter is read from the video RAM, compressed by the compression circuit and then transferred to the SCSI bus.
    Type: Grant
    Filed: November 15, 1994
    Date of Patent: April 8, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masami Amemiya
  • Patent number: 5608540
    Abstract: In a preferential recording system provided in a transmission unit and a reception unit of a facsimile apparatus, the preferential recording system includes: a priority/time setting unit provided in the transmission unit for setting priority of recording desired time of recording at the reception side into the telegram message to be transmitted from the transmission unit of the transmission side to the reception unit of the reception side; a priority/time decision unit provided in the reception unit for determining the priority of the recording and/or the desired time of the recording set into the telegram message; a priority/time memory also provided in the reception unit for storing the priority of the recording and the actual time of the recording for every telegram message; and a time counting unit also provided in the reception unit for imparting present time and a setting time of recording to the priority/time decision unit.
    Type: Grant
    Filed: September 9, 1994
    Date of Patent: March 4, 1997
    Assignee: Fujitsu Limited
    Inventor: Satoshi Ogawa
  • Patent number: 5608545
    Abstract: The facsimile device, which can be used with a portable telephone working on a built-in battery, has a voltage detecting section for detecting voltage of a battery of the portable telephone and a control section providing controls to inhibit facsimile communication depending on the voltage detected by the voltage detecting section when facsimile communication is executed with the portable telephone, and the control section determines that life of the battery has been terminated when voltage of the battery in the telephone portable is below a prespecified value and inhibits facsimile communication.
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: March 4, 1997
    Assignee: Ricoh Company, Ltd.
    Inventor: Tetsuya Kagawa
  • Patent number: 5608537
    Abstract: An image treatment apparatus includes a first optical device for projecting an image of a film, a second optical device for projecting an image of an original, a display for displaying the image projected by the first optical device, a reader for reading the images projected by the first and second optical devices and for emitting an image signal, and a switch for selectively directing the image of the film or the image of the original to the reader.
    Type: Grant
    Filed: August 23, 1993
    Date of Patent: March 4, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoki Manabe, Toshio Iwaya, Yoshitaka Masuda