Patents Assigned to Hitachi Maxell, Ltd.
  • Patent number: 9906808
    Abstract: High-quality video is provided using a small amount of coded bits. The moving picture decoding method performs inter-frame prediction processing. With the aforementioned inter-frame prediction processing, blocks with similar motion vectors from among the motion vectors in multiple blocks that have already been decoded are combined and a combined area is computed. A predicted vector for a target block to be decoded is computed using the motion vector of the aforementioned combined area, and a motion vector for the aforementioned target block is computed based on the aforementioned predicted vector and a difference vector which is included in a coded stream that is input. A predicted image is generated using the aforementioned motion vector, and a difference image which is included in the aforementioned coded stream and the aforementioned predicted image are added to generate a decoded image.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: February 27, 2018
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Masashi Takahashi, Muneaki Yamaguchi, Hiroaki Ito, Takehiro Fujita
  • Patent number: 9904152
    Abstract: A solid-state light source device, enabling to build up with using solid-state elements, and having the structure suitable to be applied as a light source for a projection-type display apparatus, comprises a solid-state light source unit 10 for emitting excitation light therefrom, a reflection mirror (or reflector) 130 made of a parabolic surface, for condensing the excitation light from the solid-state light source to be point-like, and a disc-like (or wheel) member 140, repeating reflection/scattering or transmission/scattering of the excitation light and conversion of the excitation light, alternately, in vicinity of a focus point of the excitation light, which is condensed to be point-like by the reflection mirror (or reflector), wherein the excitation light (B-color) reflected/or scattered by that disc-like (or wheel) member and fluorescence light (Y-color), wavelength of which is converted, is taken on a same optical path, by means of the reflection mirror (or reflector) 130 or a second reflection mirro
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: February 27, 2018
    Assignee: HITACHI MAXELL, LTD.
    Inventors: Koji Hirata, Hidehiro Ikeda, Nobuyuki Kimura
  • Patent number: 9900569
    Abstract: This projection-type image display device is provided with: a lamp drive unit that drives a lamp; a lamp voltage detection unit that detects a lamp interelectrode voltage (hereinafter referred to as a lamp voltage); an image correction unit that corrects image qualities of image signals to be supplied to an image display element; and a control unit that controls a correction quantity of the image correction unit on the basis of the lamp voltage detected by means of the lamp voltage detection unit. Consequently, deterioration of visibility of a projection image can be suitably suppressed.
    Type: Grant
    Filed: July 4, 2014
    Date of Patent: February 20, 2018
    Assignee: HITACHI MAXELL, LTD.
    Inventors: Eriko Nagata, Shinji Onodera, Satomi Morishita, Naoya Oka, Masaaki Iwanaga
  • Patent number: 9891508
    Abstract: A optical system including a projection lens system 102 for emitting light image to be enlarging-projected is accommodated inside a frame 1 configured with a lower case 2 and an upper case 3, a reflecting mirror 32 which enlarging-projects the image light emitted from the optical system toward a screen S or a top surface of a table T as a display plane is openably attached to a portion of the upper case of the frame, the device can be installed by a bottom surface of the lower case or one side surface thereof, a stand leg 5 is accommodated integrally with the case and extractably in the one side surface of the lower case, and the stand leg has a form (an inclination angle, a ratchet mechanism, a locking mechanism, and the like) satisfying an installation condition for vertically erected arrangement in the extracted state.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: February 13, 2018
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Masayuki Fukui, Kazuomi Kaneko
  • Patent number: 9892713
    Abstract: In a display device provided with a frame memory developing an auxiliary line image as a display image and a means of reading out and displaying the image data developed in the aforementioned frame memory, the aforementioned auxiliary line image is constituted by background pixels and dashed auxiliary lines constituted by pixels which have luminance or color that is different from that of the background color and pixels with have nearly identical luminance or color to that of the background color; and by carrying out the display of the dashes so as to move, at fixed time intervals or arbitrary time intervals, the dash display areas of the aforementioned auxiliary lines on the trajectory of the figure described by the aforementioned auxiliary lines, the system is devised to display the auxiliary lines while controlling that an identical pixel of the display device is not displayed continually.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: February 13, 2018
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Shinji Onodera, Koichi Atsuta, Yusuke Mukai, Kenichi Iwahara
  • Patent number: 9894310
    Abstract: A video transmitting apparatus including: a first register that is set when receiving a CEC (Consumer Electronics Control) message which is transmitted by a video signal source and is reset in response to a leading edge of a predetermined voltage that is supplied from said video signal source; and a second register which reads an EDID (Extended Display Identification Data) of a video displaying apparatus, is set when a decision is made that said video displaying apparatus is a predetermined video displaying apparatus, and is reset when a state where an HPD (Hot Plug Detect) is in a state of low has continued for a predetermined period of time or longer, wherein when both of said first and second registers have been set, a determination is made that said video signal source, said video transmitting apparatus, and said video displaying apparatus have been connected.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: February 13, 2018
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Nobuaki Kabuto, Yasutaka Tsuru, Yuya Ogi
  • Patent number: 9884439
    Abstract: A method for producing a foamed molded product includes: using a molding apparatus including a plasticizing cylinder having a high pressure kneading zone and a pressure reduction zone; and a screw; controlling a pressure of the pressure reduction zone to be a first pressure in a state that communication between the high pressure kneading zone and the pressure reduction zone is shut off, the first pressure being not less than an atmospheric pressure and not more than a maximum pressure of the high pressure kneading zone which is reached in a case that a molten resin is brought in contact and kneaded with a physical foaming agent; controlling back pressure of the screw to be a second pressure which is not less than the first pressure; and measuring a predetermined amount of the molten resin from which the gasified physical foaming agent has been separated.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: February 6, 2018
    Assignee: HITACHI MAXELL, LTD.
    Inventors: Satoshi Yamamoto, Atsushi Yusa, Hironori Ota, Tetsuya Ano, Hideto Goto
  • Patent number: 9883225
    Abstract: A portable terminal includes a receiving unit which receives content information, an external device communication unit which conducts communication with an external information device, a display unit which displays the content information received by the receiving unit, an acquiring unit which acquires identification information identifying the content information displayed by the display unit, an operation unit which receives an operation indication from a user, and a control unit which conducts control such that if a transmission indication of the identification information is received by the operation unit while the content information is being displayed, the identification information acquired by the acquiring unit is transmitted to the external information device and the display of the content information by the display unit is terminated.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: January 30, 2018
    Assignee: HITACHI MAXELL, LTD.
    Inventors: Takashi Matsubara, Mayumi Nakade, Masahiro Yamazaki, Hiroyuki Higaki
  • Patent number: 9877026
    Abstract: The image transmission system, which transmits image data from a transmission side and performs image processing at a reception side, is provided with: an image transmission device that encodes an input image and outputs and a bitstream; an image reception device that receives and decodes the bitstream and performs image processing; a bit precision information generation unit that generates bit precision information for each region in the image; a quantization control unit that controls the quantization step width in a quantization process performed in the image transmission device in accordance with the bit precision information generated by the bit precision information generation unit; and an image processing unit that performs image processing using the decoded image that has been decoded by the image reception device. The bit precision information generation unit switches the method for generating bit precision information in accordance with the processing mode of the image processing unit.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: January 23, 2018
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Kyohei Unno, Mitsuhiro Okada, Hironori Komi
  • Publication number: 20180011687
    Abstract: Operability of head-mounted display systems is enhanced by incorporating the following: a microphone which receives an utterance input by a person and outputs voice information; a character string generation unit which generates an uttered character string by converting the voice information into a character string; a specific utterance information storage unit which stores specific utterance information that associates at least one program to be started or stopped and/or at least one operating mode to be started or stopped, with specific utterances for starting or stopping each of the programs and/or operating modes; a specific utterance extraction unit which extracts a specific utterance included in the uttered character string with reference to the specific utterance information, and generates an extracted specific utterance signal indicating the extraction result; and a control unit which starts or stops a program or an operating mode with reference to the extracted specific utterance signal.
    Type: Application
    Filed: December 25, 2014
    Publication date: January 11, 2018
    Applicant: HITACHI MAXELL, LTD.
    Inventor: Seiji IMAGAWA
  • Publication number: 20180013179
    Abstract: A method for charging a lithium ion secondary battery of the present invention includes a first step and a second step. In the first step, A, B, and C satisfy the relationship A>B and B<C, where A represents an average charging current value in the range where a charge rate of the lithium ion secondary battery is 0% or more and less than 40%, B represents an average charging current value in the range where the charge rate is 40% or more and 60% or less, and C represents an average charging current value in the range where the charge rate is more than 60%. In the first step, the ratio of CMAX to CMIN (CMAX/CMIN) is 1.01 to 3.00, where CMAX represents the maximum value of the charging current value and CMIN represents the minimum value of the charging current value.
    Type: Application
    Filed: December 10, 2015
    Publication date: January 11, 2018
    Applicant: HITACHI MAXELL, LTD.
    Inventors: Hirokazu NOMURA, Kunihiko KOYAMA
  • Patent number: 9858888
    Abstract: A display apparatus transmits a picture acquisition request for getting picture information to an external image apparatus connected through a predetermined interface to the display apparatus from the external image apparatus at predetermined intervals and gets a plurality of pieces of picture information from the external image apparatus to be displayed. The plurality of pictures may be switched at predetermined intervals, for example, to be displayed, so that the plurality of pictures may be displayed in a so-called slide show manner. A plurality of pictures for thumbnail may be produced from the plurality of pieces of picture information and be arranged together to be displayed in one picture screen of a display device.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: January 2, 2018
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Toshiyuki Kurita, Hitoaki Owashi
  • Patent number: 9857669
    Abstract: A projection type image display device to be used with a mobile terminal has a housing with an upper side case having a reflective mirror attached thereto and an openable mirror cover formed thereon and a lower side case having a plurality of air exhausting openings provided on a side wall surface thereof. A light source is provided for shining image light that has been magnified and projected onto the reflective mirror; and an image is magnified and projected on the basis of the light from the light source. An optical system is disposed within the lower side case parallel to the bottom surface of the case along a central axis of the device, and also an image processing unit, which includes the light source, and a power supply unit are disposed within the lower case symmetrically with the optical system as the center.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: January 2, 2018
    Assignee: HITACHI MAXELL, LTD.
    Inventors: Koji Hirata, Takafumi Ishizu, Takatsugu Kawabata
  • Patent number: 9854265
    Abstract: Provided is a video encoding/decoding technique for improving the compression efficiency by reducing the motion vector code amount. In a video decoding process, the prediction vector calculation method is switched from one to another in accordance with a difference between predetermined motion vectors among a plurality of motion vectors of a peripheral block of a block to be decoded and already decoded. The calculated prediction vector is added to a difference vector decoded from an encoded stream so as to calculate a motion vector. By using the calculated motion vector, the inter-image prediction process is executed.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: December 26, 2017
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Masashi Takahashi, Muneaki Yamaguchi
  • Publication number: 20170366975
    Abstract: An image display system includes a first terminal device and with a second terminal device whose usable function range is smaller than a usable function range of the first terminal device. The image display system includes a display projection unit, a communication unit that establishes wireless connection with the first and second terminal devices, a control unit that manages the wireless connection, and a connection control image generating unit. The control unit and the connection control image generating unit generate a terminal connection image including information for connecting the second terminal device with the image display system, based on terminal connection permission information that assigns the second terminal device whose wireless connection with the display system is permitted, the terminal connection permission information being transmitted from the first terminal device. The display projection unit displays the terminal connection image.
    Type: Application
    Filed: January 23, 2015
    Publication date: December 21, 2017
    Applicant: HITACHI MAXELL, LTD.
    Inventor: Junji KAMIMURA
  • Patent number: 9846354
    Abstract: A projection video display device, which enlarges and projects an image from an image-displaying means, has a housing and a raisable/lowerable mirror and a power supply, a light source, and a lens unit inside the housing. The raisable/lowerable mirror covers a projection-light opening formed in the top surface of the housing and able to rotate with respect to the housing, and has a convex mirror on the inside surface thereof. The raisable/lowerable mirror covering the top surface of the housing forms a smoothly connected, smooth, convexly curved surface with no height difference between the edge of the raisable/lowerable mirror and the front edge of the opening, and a half-bowl-shaped concavity is formed on at least one side of the raisable/lowerable mirror in the direction of the axis of rotation thereof.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: December 19, 2017
    Assignee: HITACHI MAXELL, LTD.
    Inventors: Kosuke Matoba, Atsushi Ishibashi, Toshiyuki Moriya, Takafumi Ishizu, Kazuomi Kaneko, Koji Hirata
  • Patent number: 9848185
    Abstract: A video display system includes a source device for reproducing and outputting contents; and a display device for displaying contents which is output from the source device. Upon receiving a message for requesting display of a 3D video from the source device in a state of unreadiness to display the 3D video, the display device transmits a message for stopping reproduction of 3D contents to the source device. Upon receiving the message for stopping reproduction of 3D contents, the source device stops reproduction of the 3D contents. Upon completing preparations for displaying the 3D video, the display device transmits a message for reproducing the 3D contents to the source device. Upon receiving the message for reproducing the 3D contents, the source device reproduces and outputs the 3D contents.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: December 19, 2017
    Assignee: HITACHI MAXELL, LTD.
    Inventor: Nobuaki Kabuto
  • Publication number: 20170358791
    Abstract: A nonaqueous electrolyte primary battery with improved storage properties at high temperatures and excellent reliability, and a method for producing the battery are provided. The nonaqueous electrolyte primary battery includes a negative electrode containing metallic lithium or a lithium alloy, a positive electrode, a separator, and a nonaqueous electrolyte solution. The nonaqueous electrolyte solution contains at least LiClO4 as an electrolyte and 0.1 to 5% by mass of LiB(C2O4)2.
    Type: Application
    Filed: June 3, 2016
    Publication date: December 14, 2017
    Applicant: HITACHI MAXELL, LTD.
    Inventor: Yu Sugioka
  • Patent number: D805574
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: December 19, 2017
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Hideki Nohechi, Hiroyuki Inoue, Takeshi Katayama
  • Patent number: D806777
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: January 2, 2018
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Hideki Nohechi, Hiroyuki Inoue, Takeshi Katayama