Patents by Inventor Hideharu Tajima

Hideharu Tajima 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: 8233375
    Abstract: A super-resolution medium (1) has a medium identification information for specifying a type of medium recorded in a medium information area (3) by use of pre-pits having a length not shorter than a length of a resolution limit of an optical system in a reproducing device (10).
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: July 31, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hideharu Tajima, Masaki Yamamoto, Go Mori, Nobuyuki Takamori
  • Publication number: 20120183277
    Abstract: Where 3D conversion complementary information for 3D conversion of a TV program is pre-recorded on a first information recording area of an optical disc, a content recording area is set to an area on which the TV program relating to the 3D conversion complementary information is recordable. Where the 2D video content is pre-recorded on the first information recording area, download information, etc for recording the 3D conversion complementary information on a 3D conversion complementary information recording space is pre-recorded on a third information recording area so that 2D video content can be reproduced as 3D video. This allows recording and viewing 3D video by easily converting 2D video content, without changing standards and communication formats of generally available 2D video contents and while suppressing an increase in distributed information amount caused by conversion to 3D video.
    Type: Application
    Filed: September 28, 2010
    Publication date: July 19, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hideharu Tajima, Shigemi Maeda
  • Publication number: 20120182408
    Abstract: A display control device (2) disclosed includes (i) a display/non-display video image determining section (70) that determines, on the basis of (i) video image information about a video image displayed by a display device (400) and (ii) viewing mode information indicative of a viewer's desired mode of viewing a video image, whether the video image displayed by the display device (400) is a display video image or a non-display video image and (ii) a shutter operation control section (80) that closes a right-eye shutter and a left-eye shutter of a liquid crystal shutter (500) when a video image determined as a non-display video image, which is unnecessary for the viewing mode and which is thus not to be displayed to the viewer, is displayed by the display device (400). The display control device (2) thus closes the right-eye shutter and the left-eye shutter of the liquid crystal shutter (500) when a non-display video image is displayed by the display device (400).
    Type: Application
    Filed: November 1, 2010
    Publication date: July 19, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Teruhisa Kotani, Hideharu Tajima, Shigemi Maeda, Yasuhiro Harada, Atsushi Etoh
  • Patent number: 8223620
    Abstract: A super-resolution optical recording medium (10) of the present invention includes: a medium information region (1) on which medium identification information is recorded; a content region (3) on which content information is recorded; and a blank region (2) provided between the medium information region (1) and the content region (3) and in which at least two tracks are provided so as to connect a train of prepits in the medium information region (1) and a train of prepits in the content region (3). No information is recorded on the blank region (2). With this arrangement, the present invention provides a super-resolution optical recording medium in which a region on which medium identification information is recorded and a region on which content information is recorded are different in track pitch and in which a reproduction error hardly occurs when reproduction shifts from the region on which the medium identification information is recorded to the region on which the content information is recorded.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: July 17, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshihiko Sakai, Hirohisa Yamada, Masaki Yamamoto, Yasuhiro Harada, Go Mori, Hideharu Tajima, Nobuyuki Takamori
  • Patent number: 8194513
    Abstract: An optical data recording medium, in which irradiation of a light beam is used for recording and/or reproducing data includes (i) a substrate having an a rise and/or a recess which are a light-incident surface, (ii) a reflective layer, provided on the light-incident surface of the substrate, for reflecting the light beam, (iii) a light absorption layer for converting, to heat, a light of the light beam to heat on the surface of the reflective layer, (iv) a reproducing layer, provided on the surface of the heat-light converting layer, having a transmittance that changes in accordance with a light intensity distribution of the light beam. The optical data recording medium is excellent in super-resolution property, and enables reproduction of a shorter mark length.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: June 5, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hideharu Tajima, Nobuyuki Takamori, Go Mori, Masaki Yamamoto
  • Patent number: 8194525
    Abstract: There are provided at least a first information storage area 20A and a second information storage area 40A. The first information storage area 20A contains, in advance, an OS or mpeg data. The second information storage area 40A is either write-once or rewriteable and available for writing OS update information or movie correction information. The configuration enables easy backup and restoration of software, content, and various information including update information for use by the software and content with reduced user time and workload.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: June 5, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasuhiro Harada, Shigemi Maeda, Hideharu Tajima, Tetsuya Hayashi, Atsushi Etoh
  • Patent number: 8189444
    Abstract: This invention allows super-resolution reproduction with which a better bER value is attainable, when information is recorded by a random pattern including a mark length not longer than a resolution limit, by use of a highly versatile signal decoding method. Information is recorded as marks and spaces coded by RLL(1, 7) modulation, which each of the marks and spaces have one of a plurality of lengths, and 2T marks and 2T spaces of the marks and spaces being formed are shorter than 0.12 ?m. An information recording layer (20) includes a reproduction film (21) and a reflective film (22) which are provided in this order from a side from which reproducing light is incident, which reproduction film is made of (i) zinc oxide, (ii) strontium titanate, (iii) titanium oxide, (iv) cerium oxide, or (v) a material including at least one of the (i) through (iv), and which reflective film is made of tantalum or titanium.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: May 29, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Go Mori, Hirohisa Yamada, Masaki Yamamoto, Yasuhiro Harada, Hideharu Tajima, Shigemi Maeda, Yoshiteru Murakami
  • Publication number: 20120105445
    Abstract: A three-dimensional image output device of the present invention includes a display control section for, in a case where a plurality of three-dimensional effects are set for initial sub-image data for displaying a three-dimensional image to be displayed in the sub-window, supplying, to the display device, a plurality of sub-image data, which are the initial sub-image data for which the respective plurality of three-dimensional effects are set, so that a plurality of three-dimensional images which use the respective plurality of sub-image data are displayed on the display screen.
    Type: Application
    Filed: October 24, 2011
    Publication date: May 3, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Toshihiko Sakai, Takayuki Naka, Tetsuya Hayashi, Noboru Iwata, Takashi Arimoto, Hideharu Tajima
  • Patent number: 8134909
    Abstract: A super resolution medium (1) is provided with an information signal region (11) where a content, such as a video or audio content, is recorded and a test read region (12) where reproduction setting value adjustment information is recorded for adjusting a setting value for reproduction. A shortest mark length on a first prepit row formed in the information signal region (11) is shorter than a length of an optical system resolution limit of a playback apparatus. The types of mark lengths, recorded in the test read region (12), on the second prepit row for adjusting the setting value are the same as part or all types of mark lengths on the first prepit row. Further, the second prepit row includes a prepit having a mark length shorter than the length of the optical system resolution limit of the payback apparatus. Still further, each of the first and second prepit rows has at least three types of mark lengths.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: March 13, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masaki Yamamoto, Hirohisa Yamada, Toshihiko Sakai, Yasuhiro Harada, Go Mori, Hideharu Tajima, Nobuyuki Takamori
  • Publication number: 20120050272
    Abstract: An image processing device includes: an image region specifying section for specifying a first image region and/or a second image region; and a pixel value changing section for changing a pixel value of the first image region and/or the second image region specified by the image region specifying section to a pixel value indicative of a predetermined pattern. The first image region (i) includes an object that exists in the image for the left eye and does not exist in the image for the right eye and (ii) is defined based on a left side of the image for the left eye. The second image region (a) includes an object that exists in the image for the right eye and does not exist in the image for the left eye and (b) is defined based on a right side of the image for the right eye.
    Type: Application
    Filed: August 18, 2011
    Publication date: March 1, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Noboru Iwata, Hideharu Tajima
  • Patent number: 8125881
    Abstract: An optical information recording medium of the present invention, a reproduction method using the optical information recording medium, and an optical information processing device using the optical information recording medium, each of which optically reproduces recorded information by irradiating a light beam, include: a substrate on which a bumpy pit and/or groove corresponding to the recorded information or a recording layer is formed; and a temperature responsive layer whose optical property (transmissivity) in a wavelength of the light beam varies in response to temperature rise caused by irradiation of the light beam. The optical information recording medium can surely reproduce information, which has been recorded in a high density manner, with high accuracy.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: February 28, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Go Mori, Masaki Yamamoto, Hideharu Tajima, Nobuyuki Takamori
  • Patent number: 8107343
    Abstract: An optical information storage medium includes a light transmitting layer, a first information storage layer, an intermediate layer mainly made of resin, a second information storage layer, and a substrate. The light transmitting layer, the first information storage layer, the intermediate layer, the second information storage layer, and the substrate are layered in this order from a reproduction light incident side. Each of the first information storage layer and the second information storage layer includes: a light absorbing film that absorbs reproduction light to generate heat; and a reproduction film that is heated by the heat generated by the light absorbing film so as to reproduce a signal shorter in mark length than a resolution limit of an optical system of a reproducing apparatus.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: January 31, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hideharu Tajima, Masaki Yamamoto, Go Mori, Nobuyuki Takamori
  • Patent number: 8094544
    Abstract: An optical information recording medium reproducing device (1) reproduces information from a super-resolution optical information recording medium (100a) having the information stored therein by positioning, according to a random pattern system, a plurality of recording marks including a recording mark shorter than a resolution limit of an optical system. This reproducing device (1) performs test readings for measuring indexes each relating to a reproduction quality of the super-resolution optical information recording medium (100a) by emitting laser light onto a storage surface of the super-resolution optical information recording medium (100a), while changing a reproduction laser power from a predetermined initial value, and based on the indexes measured, sets a reproduction laser power for reproducing the information.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: January 10, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hirohisa Yamada, Masaki Yamamoto, Yasuhiro Harada, Go Mori, Hideharu Tajima
  • Publication number: 20120002514
    Abstract: An invention disclosed includes a layer number obtaining section (222) for determining which information storage layer (L1) has been accessed and a layer type identifying section (223) for identifying a type of the information storage layer (L1) determined by the layer number obtaining section (222). With the configuration, even in a case where an information recording and reproducing apparatus accesses an information storage layer different from an intended information storage layer by false operation or the like, it is still possible to dissolve mismatching between a recording or reproduction control scheme being set up and a recording or reproduction control scheme suitable for the information storage layer thus accessed.
    Type: Application
    Filed: February 22, 2010
    Publication date: January 5, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Atsushi Etoh, Tetsuya Okumura, Hideharu Tajima, Shigemi Maeda, Yoshihisa Adachi, Tetsuya Hayashi, Yasuhiro Harada, Takashi Arimoto, Ikuo Nakarno, Masaki Yamamoto, Hirohisa Yamada
  • Publication number: 20110285829
    Abstract: An image watching glasses identification device 10 (or 20 or 30) is an image watching glasses identification device 10 (or 20 or 30) for identifying a pair of shutter glasses 400 through which to watch an image displayed on a display device 100, the image watching glasses identification device 10 (or 20 or 30) including: an identification information obtaining section 15 for obtaining an identification information item for identifying the pair of shutter glasses 400 and; a display control section 12 for causing the display device 100 to display an identification result associated with the identification information item obtained by the identification information obtaining section 15. This makes it possible to provide an image watching glasses identification device that is capable of causing, when a viewer watches through the pair of image watching glasses 400 the image displayed on the display device 100, the display device 100 to display the identification result.
    Type: Application
    Filed: March 9, 2011
    Publication date: November 24, 2011
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Go Mori, Teruhisa Kotani, Hideharu Tajima, Shigemi Maeda, Tetsuya Okumura, Takashi Arimoto, Toshihiko Sakai, Takanobu Sato
  • Publication number: 20110273970
    Abstract: An optical information recording medium (1) includes, on a substrate (50), a ROM layer (20), a RE layer (40), an intermediate layer (30) separating the ROM layer (20) and the RE layer (40), and a cover layer (10) provided in a position farthest from the substrate (50). The RE layer (40) is an information recording layer provided in a position farthest from the light transmitting layer and also is a recording layer of disc type identification information and an individual identification number recorded in a format allowing easier determination as compared to an information recording format used in the layer allowing only readout of information by use of light irradiation. Therefore, it becomes easy to check a disc type in a recording/reproducing device and one recording/reproducing device can be shared with other types of optical disks. Further, disk production becomes easy.
    Type: Application
    Filed: January 18, 2010
    Publication date: November 10, 2011
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hideharu Tajima, Shigemi Maeda, Yoshihisa Adachi, Tetsuya Hayashi, Atsushi Etoh, Tetsuya Okumura, Ikuo Nakano, Takashi Arimoto, Noboru Iwata
  • Publication number: 20110205876
    Abstract: The present invention provides an optical information recording medium (2) capable of shortening a time from acquiring identification information to starting a program etc. recorded on an ROM layer. The optical information recording medium (2) includes two or more information recording layers, information of each of the two or more information recording layers is readable by emitting reproducing light thereto, at least one of said two or more information recording layers is an RE/R layer (4), at least another one of said two or more information recording layers is an ROM layer (5), and the RE/R layer (4) includes an identification information recording region (41), and an interlayer-movement Flag is recorded on the identification information recording region (41).
    Type: Application
    Filed: October 1, 2009
    Publication date: August 25, 2011
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yoshihisa Adachi, Shigemi Maeda, Hideharu Tajima, Ikuo Nakano, Tetsuya Okumura, Takashi Arimoto, Noboru Iwata, Tetsuya Hayashi, Atsushi Etoh
  • Patent number: 7907497
    Abstract: There is provided a storage layer (13) between storage layers (11), (15). The storage layer (13) produces a relatively large spherical aberration for a protection layer thickness error. Information is written to or read from the storage layer (13) with a beam of light having a second wavelength. Information is written to or read from the storage layers (11), (15) with a beam of light having a first wavelength (longer than the second wavelength). Accordingly, a multi-format optical storage medium is realized on which information can be recorded or reproduced with a single objective lens. Also, an optical pickup is realized which is capable of recording or reproducing information on the multi-format optical storage medium.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: March 15, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Ikuo Nakano, Hideharu Tajima, Go Mori, Masaki Yamamoto, Nobuyuki Takamori, Michinobu Mieda, Masanori Shimo, Toshihiko Sakai
  • Publication number: 20110058460
    Abstract: In an optical information storage medium reproduction apparatus (10) for reproducing an optical information storage medium including a plurality of information recording layers each including a recording mark having a length shorter than an optical system resolution limit, reproduction laser power for reading an information recording layer closest to a reproduction-laser-incident surface of the optical information storage medium is set to be lower than reproduction laser power for reading an information recording layer farthest from the reproduction-laser-incident surface but not lower than minimum reproduction laser power that satisfies a reproduction signal characteristic that the optical information storage medium reproduction apparatus (10) requires.
    Type: Application
    Filed: June 11, 2010
    Publication date: March 10, 2011
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Masaki Yamamoto, Hirohisa Yamada, Yasuhiro Harada, Go Mori, Hideharu Tajima, Shigemi Maeda, Yoshiteru Murakami
  • Publication number: 20110044148
    Abstract: An optical data recording medium, in which irradiation of a light beam is used for recording and/or reproducing data includes (i) a substrate having an a rise and/or a recess which are a light-incident surface, (ii) a reflective layer, provided on the light-incident surface of the substrate, for reflecting the light beam, (iii) a light absorption layer for converting, to heat, a light of the light beam to heat on the surface of the reflective layer, (iv) a reproducing layer, provided on the surface of the heat-light converting layer, having a transmittance that changes in accordance with a light intensity distribution of the light beam. The optical data recording medium is excellent in super-resolution property, and enables reproduction of a shorter mark length.
    Type: Application
    Filed: June 11, 2010
    Publication date: February 24, 2011
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hideharu Tajima, Nobuyuki Takamori, Go Mori, Masaki Yamamoto