Patents by Inventor Kenji Ichige

Kenji Ichige has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10726283
    Abstract: Provided is a device which performs vein authentication by using a downward irradiation-type thin module and selecting an image of a proper angle by varying the irradiation direction of near-infrared illumination. Realized are a photographing method and control method of a finger vein image suitable for thin devices such as a smartphone. Adopted is a finger vein authentication device comprising an imaging unit, an illumination unit which is disposed on a substantially same plane as the imaging unit, and irradiates a finger to be captured by the imaging unit with light in which an irradiation angle is variable, an image selection unit which selects an image according to the irradiation angle of the illumination unit, and an authentication processing unit which performs authentication processing using the image selected by the image selection unit.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: July 28, 2020
    Assignee: HITACHI, LTD.
    Inventor: Kenji Ichige
  • Publication number: 20180336428
    Abstract: Provided is a device which performs vein authentication by using a downward irradiation-type thin module and selecting an image of a proper angle by varying the irradiation direction of near-infrared illumination. Realized are a photographing method and control method of a finger vein image suitable for thin devices such as a smartphone. Adopted is a finger vein authentication device comprising an imaging unit, an illumination unit which is disposed on a substantially same plane as the imaging unit, and irradiates a finger to be captured by the imaging unit with light in which an irradiation angle is variable, an image selection unit which selects an image according to the irradiation angle of the illumination unit, and an authentication processing unit which performs authentication processing using the image selected by the image selection unit.
    Type: Application
    Filed: October 31, 2016
    Publication date: November 22, 2018
    Applicant: HITACHI, LTD.
    Inventor: Kenji ICHIGE
  • Publication number: 20110242304
    Abstract: A biometric authentication apparatus, for enabling to detect a counterfeit when counterfeited information is inputted, thereby preventing from a mischievous authentication, comprises: a registration unit for register a biometric information pattern; a lighting unit for irradiating a lighting upon a photographing target; an image sensor for photographing the photographing target, upon which the lighting is irradiated by the lighting unit; an authentication process unit for extracting the biometric information pattern from a video signal, being outputted from the image sensor, and thereby comparing it to a biometric information pattern, being registered in the registration unit; and a control unit for controlling a lighting intensity of the lighting irradiated by the lighting unit, wherein the control unit changes the lighting intensity of the lighting irradiated by the lighting unit, and determines on whether the photographing target is a living body or not, with using the change of brightness of the video sig
    Type: Application
    Filed: March 30, 2011
    Publication date: October 6, 2011
    Inventor: Kenji ICHIGE
  • Publication number: 20070122114
    Abstract: In a recording apparatus equipped with a drive apparatus for recording data on a recording medium such as an optical disk, and a function capable of initializing a management information area of the recording medium, a storage unit is further provided. The storage unit stores thereinto initializing data which is used to be recorded on the management information area of the recording medium when the recording medium is initialized. In the case that an initializing operation is instructed, the recording apparatus records the initializing data which has been stored in the storage unit on the management information area of the recording medium from a beginning area thereof. Thus, a user no longer waits to use the recording medium until the initializing operation is accomplished when such a recording medium as a new optical disk is used, resulting in an improvement of user operability.
    Type: Application
    Filed: October 3, 2006
    Publication date: May 31, 2007
    Applicant: Hitachi, Ltd.
    Inventors: Keisuke Kawamoto, Masahiro Fujimoto, Kazunori Uemura, Kenji Ichige, Keiji Nagayama
  • Publication number: 20030002861
    Abstract: The information recording apparatus comprises, a vide/audio input block, a video/audio signal processing block, a recording/reproduction block, a system control block, decision means, a user input block, and a display block. The apparatus is connected to a battery and records/reproduces audio/video information onto/from a detachable recording medium. The decision means decides whether to perform finalization, thereby preventing to perform an undesirable finalization.
    Type: Application
    Filed: April 12, 2002
    Publication date: January 2, 2003
    Applicant: Hitachi, Ltd.
    Inventors: Kenji Ichige, Junji Shiokawa
  • Patent number: 5710590
    Abstract: A picture communication apparatus includes an extracting circuit for extracting video data of at least one portion from video data inputted thereto, an encoder for respectively encoding the extracted video data and the remaining video data, and a multiplexer for multiplexing the encoded video data. When encoding the video data, predetermined amount of codes are allocated to the respective video data. This suppresses deterioration in the picture quality when conducting an image communication via a transmission path having a low transmission rate. The transmitted video is displayed on a contoured display.
    Type: Grant
    Filed: April 7, 1995
    Date of Patent: January 20, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Kenji Ichige, Takuya Imaide, Ryuji Nishimura, Norio Yatsuda, Hiroyuki Kuriyama, Mayuko Oda
  • Patent number: 5636316
    Abstract: A digital processing unit for converting a digital picture signal into data by blocks and for correction encoding a variable-length encoded signal. This digital processing unit includes a digital data compressing section for dividing a picture signal into a plurality of number of blocks, and compressingly outputting digital data of this picture signal based on a processing unit of one or a few blocks, a buffer section for sequentially storing the digital data, and an error correction encoding section for sequentially reading the digital data from this buffer section, and structuring an inner code for each inner block structured by this digital data and structuring an outer code for each predetermined unit of inner blocks, to thereby structure two-dimensional error correction code blocks, to output an error correction code signal.
    Type: Grant
    Filed: August 1, 1994
    Date of Patent: June 3, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Masuo Oku, Yukio Fujii, Masaru Takahashi, Kenji Ichige, Keizo Nishimura, Atsuo Suga, Shigemitsu Higuchi, Tomohide Sorihashi
  • Patent number: 5617312
    Abstract: A computer system replaces an input device, such as a mouse, with a video camera having an image recognizing function and an image extracting function to detect motions of the operator's body directly, and controls a computer apparatus to move a cursor and check on an icon on the basis of the output signals of the video camera. The computer system controls the computer apparatus also on the basis of a signal provided by the video camera upon the detection of light emitted by a particular object. The computer system is capable of making the computer apparatus understand an operator's intention without using any conventional input device, such as a mouse, and of facilitating an operator's input operation.
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: April 1, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Noriyuki Iura, Yoshimichi Kudo, Kenji Ichige, Naoki Yamamoto, Takuya Imaide
  • Patent number: 5585933
    Abstract: A recording and/or reproducing apparatus for recording and/or reproducing image signals compressed according to different compressing methods. This recording and/or reproducing apparatus includes a compressing circuit for compressing first image data according to a first image data compressing method, a selecting circuit supplied with the first image data thus compressed and encoded by the compressing circuit and second image data compressed and encoded according to a second image data compressing method and selecting any one of the first and second compressed image data, and a first error correction encoding circuit for error correction encoding the selected compressed image data.
    Type: Grant
    Filed: December 15, 1994
    Date of Patent: December 17, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Kenji Ichige, Takao Arai, Masuo Oku, Hiroo Okamoto
  • Patent number: 5550640
    Abstract: A digital video signal recording and reproducing apparatus and method wherein a basic block is constituted by a plurality of pixels of video signals. A picture data compressing unit effects data compression of the video signals so that a compression data quantity after data compression becomes a constant with respect to a compression block constituted by a plurality of the basic blocks, and the compressed data o the video signals are recorded on a data recording medium.
    Type: Grant
    Filed: July 12, 1994
    Date of Patent: August 27, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Yukitoshi Tsuboi, Masuo Oku, Masaru Takahashi, Kenji Ichige
  • Patent number: 5231479
    Abstract: A color picture signal processing circuit, a filter circuit and a luminance/carrier chrominance signal separation circuit implemented by employing the filter circuit. The circuit processing signal includes an adaptive-type (C) comb line filter through which the luminance signal is caused to pass. The output of the filter undergoes amplitude limitation in a limiter circuit, the output of which is subtracted from the original luminance signal. The carrier chrominance signal is added to the luminance signal to obtain a composite picture signal.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: July 27, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Hitoaki Owashi, Kooji Minabe, Katsuyuki Watanabe, Koichi Ono, Kenji Ichige, Hiroto Yamauchi