Patents by Inventor Hiroaki Shimazaki

Hiroaki Shimazaki 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: 8184951
    Abstract: A recording and reproducing apparatus prevents, when a format instruction is given via an on-screen menu in an image format of one of HDTV and SDTV standards and the content item to be erased is in the other standard, erroneous erasure of a content item on a recording medium having mixed content items recorded using these standards. The recording and reproducing apparatus includes a controlling unit that instructs, upon a user instruction to format via an inputting unit, an image generating unit to generate an on-screen warning, the image generating unit that generates, following the instruction from the controlling unit, the on-screen warning, a display unit that displays the on-screen warning generated by the image generating unit, and a searching unit that searches a disc for a directory recorded using a standard other than used for recording a CONTENTS directory.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: May 22, 2012
    Assignee: Panasonic Corporation
    Inventor: Hiroaki Shimazaki
  • Publication number: 20120120207
    Abstract: An image playback device includes a playback portion which plays back content data to make a video stereoscopically viewed by means of video data including first and second images for first and second view points, respectively; a setting portion which sets a playback speed for playing back the content data; and an adjuster which adjusts parallax information about parallax between the first and second images in response to the playback speed set by the setting portion.
    Type: Application
    Filed: December 6, 2010
    Publication date: May 17, 2012
    Inventors: Hiroaki Shimazaki, Kenjiro Tsuda, Tatsuro Juri, Hiromichi Ono
  • Patent number: 8019198
    Abstract: To provide a recording and reproducing apparatus that recovers contents having approximately the same quality as the original contents in a short time and requiring only light processing load, at the time of (a) moving the contents from the first recording medium to the second recording medium, (b) rewriting the contents in order to disable reproduction of the contents, (c) reconstructing the original contents by recovering the contents from the second recording medium to the first recording medium. The recording and reproducing apparatus includes a move processing unit 72a and a recovery processing unit 73a. The former records reconstruction information on the second recording medium in association with the second contents, the reconstruction information being used in reconstructing one or more parts of the contents that have been rewritten in order to disable reproduction of the contents at the time of moving the contents.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: September 13, 2011
    Assignee: Panasonic Corporation
    Inventors: Hiroaki Shimazaki, Katsuo Saigo, Hideyuki Ohgose, Kenjiro Tsuda
  • Patent number: 8018502
    Abstract: An image recording device includes: a reference clock generation generating a reference clock; a first compression unit generating first compressed image data by compressing a first picture that is included in pictures in the captured image and that is equivalent to image captured at the first frame rate; a second compression unit generating second compressed image data by compressing a second picture that is included in the pictures in the captured image except the first picture; a first timestamp generation unit generating a first timestamp indicating a time for presentation of the first picture with reference to the reference clock; a second timestamp generation unit generating a second timestamp indicating a time for presentation of the second picture with reference to the reference clock; a first assignment unit assigning the first timestamp to the first compressed image data; a second assignment unit assigning the second timestamp to the second compressed image data; and a recording unit recording, to t
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: September 13, 2011
    Assignee: Panasonic Corporation
    Inventors: Hiroaki Shimazaki, Kenjiro Tsuda, Tatsuro Juri, Katsuo Saigo, Takashi Masuno, Yuki Kobayashi, Takuma Chiba, Yukinaga Seki
  • Publication number: 20110116722
    Abstract: Reproduction of a plurality of coded streams is switched smoothly without a large processing capability. A coded stream reproduction device (100) which reproduces one of a plurality of coded streams includes: an output selecting unit (109) which selects one of the coded streams; a data reading unit (102) which reads a first coded stream selected and a second coded stream not selected; a decoding unit (104) which decodes a first coded picture included in the first coded stream; and a corresponding data detecting unit (103) which detects a second coded picture from the second coded stream based on time information indicating a display time of the first decoded picture, the second coded picture being used for temporally-smooth switching of a display from the first coded stream to the second coded stream. The decoding unit (104) further decodes at least one of (i) the detected second coded picture, and (ii) a third coded picture to be referred to when decoding the second coded picture.
    Type: Application
    Filed: July 2, 2009
    Publication date: May 19, 2011
    Inventors: Yukinaga Seki, Kenjiro Tsuda, Tatsuro Juri, Yuki Kobayashi, Takashi Masuno, Katsuo Saigo, Hiroaki Shimazaki, Takuma Chiba
  • Patent number: 7941029
    Abstract: A shooting device includes a frame-rate setting section, a shooting section, and a recording section. The frame-rate setting section sets a frame rate at the shooting and a frame rate at the reproducing arbitrarily and independently. The shooting section shoots moving images at the shooting frame rate, and the recording section records video signals of the shot moving images together with information about the shooting frame rate and information about the reproducing frame rate, where both of the information are linked with the video signals.
    Type: Grant
    Filed: October 19, 2005
    Date of Patent: May 10, 2011
    Assignee: Panasonic Corporation
    Inventors: Seiji Horita, Hideaki Mita, Hiroaki Shimazaki, Hiroshi Yahata
  • Patent number: 7917000
    Abstract: A video recording apparatus provides a slow motion effect or a quick motion effect by digitally converting the frame-rate instead of by changing the playback speed of the film, and using few recording media without requiring any special device at playing. A picture encoding part encodes only valid frames by changing a rate-controlling method so that a predetermined playing frame-rate is obtained at a standard data-rate at playing. And a TS multiplexing part multiplexes by converting a frequency of a standard STC clock by only a ratio of valid frame-rate and playing frame-rate, and generating values for PCR, PTS, and DTS.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: March 29, 2011
    Assignee: Panasonic Corporation
    Inventors: Hiroaki Shimazaki, Hideaki Mita, Hiroshi Saito
  • Publication number: 20110052138
    Abstract: An image recording device (100) which records an input image includes an image generating unit (120) which generates the input image based on input electric signal, an image transforming unit (130) which generates a group of first frames which can be independently reproduced, by extracting frames at a predetermined time interval from frames included in the input image generated by the image generating unit (120) and by arranging, in chronological order, the extracted frames, and to generate a group of second frames using frames that are not in the group of first frames but are in the frames included in the input image, an image coding unit (140) which (i) codes the group of first frames generated by the image transforming unit (130) and outputs a first stream, and (ii) codes the group of second frames generated by the image transforming unit (130) and outputs a second stream, and a recording unit (150) which records the first stream and the second stream coded by the image coding unit (140) on a recording med
    Type: Application
    Filed: December 26, 2008
    Publication date: March 3, 2011
    Inventors: Takuma Chiba, Yukinaga Seki, Kenjiro Tsuda, Hiroaki Shimazaki, Yuki Kobayashi, Tatsuro Juri, Katsuo Saigo, Takashi Masuno
  • Publication number: 20110055296
    Abstract: A link information generation apparatus records a link information file on a recording medium on which a first folder holding a still picture file that includes still picture data and still picture imaging time information and a second folder holding one or more moving picture files each of which includes moving picture data are recorded at positions that are not in a containment relationship with each other.
    Type: Application
    Filed: May 8, 2009
    Publication date: March 3, 2011
    Inventors: Hiroaki Shimazaki, Kenjiro Tsuda, Tatsuro Juri, Katsuo Saigo, Takashi Masuno, Yuki Kobayashi, Takuma Chiba, Yukinaga Seki
  • Publication number: 20110032988
    Abstract: A transcoder reducing processing amount when a coded stream to which at least intra prediction is applied is transcoded into a coded stream to which intra prediction and inter prediction are applied. The transcoder (100) converts a first coded stream to at least part of which intra prediction is applied, into a second coded stream to which intra prediction and inter prediction are applied. The transcoder (100) includes: a decoding unit (200) that decodes the first coded stream to generate decoded image data; a prediction mode obtaining unit (101) that obtains a prediction mode of intra prediction applied in decoding; a coding unit (300) that codes the decoded image data by applying the intra prediction or inter prediction to generate the second coded stream; and a control unit (103) that controls a coding unit (300) so that the coding unit (300) uses the prediction mode obtained by the prediction mode obtaining unit (101) when the coding unit (300) applies intra prediction.
    Type: Application
    Filed: December 11, 2009
    Publication date: February 10, 2011
    Inventors: Takuma Chiba, Kenjiro Tsuda, Tatsuro Juri, Yuki Kobayashi, Takashi Masuno, Katsuo Saigo, Yukinaga Seki, Hiroaki Shimazaki
  • Publication number: 20110032989
    Abstract: Provided is a moving picture coding device which makes it possible to suppress deterioration in coding efficiency caused by flickers occurring at a time of high-speed capturing under fluorescent lamp lighting or the like. A moving picture coding device (100) which codes a plurality of pictures obtained by capturing an object, the moving picture coding device including: a luminance information acquisition unit (121) which acquires luminance information which indicates a luminance level of light in an environment where the object is captured; and a coding unit (106) which codes the pictures, using a prediction coding method in which a picture type is applied in the coding of the pictures according to a flicker state of the light obtained from the luminance information.
    Type: Application
    Filed: May 12, 2009
    Publication date: February 10, 2011
    Inventors: Yukinaga Seki, Kenjiro Tsuda, Tatsuro Juri, Yuki Kobayashi, Takashi Masuno, Katsuo Saigo, Hiroaki Shimazaki, Takuma Chiba
  • Patent number: 7860160
    Abstract: The present invention provides a video encoding device in which a capacity of a binary data storing unit is small, a size of the video encoding device is small, a video signal can be processed in real time, and reduction in quality of images generated from the eventually obtained data can be prevented. The video encoding device according to the present invention includes: a video encoding unit which encodes a video signal; a binarization unit which binarizes an encoded value obtained from the video encoding unit; and an entropy encoding unit which subjects entropy encoding to binary data obtained from the binarization unit.
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: December 28, 2010
    Assignee: Panasonic Corporation
    Inventors: Hiroaki Shimazaki, Takashi Masuno, Takuma Chiba, Kei Tasaka, Kenjiro Tsuda, Tatsuro Juri, Katsuo Saigo
  • Publication number: 20100277613
    Abstract: An image recording device (100), which can suppress, without causing significant image degradation, image transfer speed from an imaging device, coding speed, and image recording speed that are necessary for high-speed image capturing, includes: an image signal processing unit (102) which sequentially reads, at a frame rate for high-speed image capturing, images generated through image capturing by an imaging unit (101), and outputs, from among the images sequentially read, images read at a frame rate for normal image capturing at high resolution and other images at low resolution; an image coding unit (103) which generates a high resolution coded stream by coding an image sequence made up of the high resolution images outputted by the image signal processing unit (102); a low-resolution image coding unit (104) which generates a low resolution coded stream by coding an image sequence made up of the other low resolution images outputted by the image signal processing unit (102); and a recording processing unit
    Type: Application
    Filed: December 26, 2008
    Publication date: November 4, 2010
    Inventors: Yukinaga Seki, Yuki Kobayashi, Takuma Chiba, Kenjiro Tsuda, Hiroaki Shimazaki, Tatsuro Juri, Katsuo Saigo, Takashi Masuno
  • Patent number: 7817864
    Abstract: The coding apparatus according to the present invention is a coding apparatus which codes data regarding a moving picture, and includes: a DCT coefficient advanced-coding unit which performs advanced-coding on multivalued data representing a quantized DCT coefficient or a motion vector, so as to reduce the bit length of binary data obtained by binarizing the multivalued data; an advanced-coded coefficient/binary coefficient conversion unit which converts the advanced-coded data obtained by the DCT coefficient advanced-coding unit into the binary data; and an arithmetic coding unit which performs arithmetic coding on the binary data obtained by the advanced-coded coefficient/binary coefficient conversion unit.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: October 19, 2010
    Assignee: Panasonic Corporation
    Inventors: Takuma Chiba, Hiroaki Shimazaki, Takashi Masuno, Kei Tasaka, Kenjiro Tsuda, Tatsuro Juri, Katsuo Saigo, Keiichi Ishida
  • Publication number: 20100254682
    Abstract: An image coder with a pre-record function includes a coding unit (11) which codes a motion-picture signal to generate closed GOPs or open GOPs, a buffer unit (14) in which at least one of the GOPs generated by the coding unit (11) is stored in a first-in first-out manner, a user I/F unit (12a) which receives instructions to start or stop capturing a moving picture, and a recording control unit (12b) which, before the user I/F unit (12a) receives an instruction to start capturing a moving picture, establishes a non-recording status and causes the coding unit (11) to start and continue coding the motion-picture signal so as to generate a GOP sequence including a closed GOP, and when the user I/F unit (12a) receives the instruction, switches from the non-recording status to a non-recording status and causes the coding unit (11) to generate a GOP sequence including only open GOPs.
    Type: Application
    Filed: December 3, 2008
    Publication date: October 7, 2010
    Inventors: Takashi Masuno, Tatsuro Juri, Kenjiro Tsuda, Hiroaki Shimazaki, Katsuo Saigo, Yuki Kobayashi, Takuma Chiba, Yukinaga Seki
  • Publication number: 20100232763
    Abstract: This invention includes: a menu data recording unit (131) that records a menu file onto a recording medium, the menu file for displaying a menu of contents recorded on the recording medium that is portable; a standard form menu file generation unit (129) that generates the menu file in a standard form; a simple form menu file generation unit (130) that generates the menu file in a simple form that takes shorter time than the generation in the standard form; and a menu file selection unit (128) that selects either the standard form menu file generation unit (129) or the simple form menu file generation unit (130) in order to generate the menu file either in the standard form or in the simple form.
    Type: Application
    Filed: March 12, 2007
    Publication date: September 16, 2010
    Applicant: PANASONIC CORPORATION
    Inventors: Hiroaki Shimazaki, Syouzou Fujii, Masafumi Sato
  • Publication number: 20100119214
    Abstract: A video recording apparatus provides a slow motion effect or a quick motion effect by digitally converting the frame-rate instead of by changing the playback speed of the film, and using few recording media without requiring any special device at playing. A picture encoding part encodes only valid frames by changing a rate-controlling method so that a predetermined playing frame-rate is obtained at a standard data-rate at playing. And a TS multiplexing part multiplexes by converting a frequency of a standard STC clock by only a ratio of valid frame-rate and playing frame-rate, and generating values for PCR, PTS, and DTS.
    Type: Application
    Filed: October 13, 2009
    Publication date: May 13, 2010
    Applicant: Panasonic Corporation
    Inventors: Hiroaki SHIMAZAKI, Hideaki Mita, Hiroshi Saito
  • Publication number: 20090279844
    Abstract: It is an object of the present invention to provide a recording apparatus which reduces the compression distortion generated on the menu screen included in menu data when recording compression-coded menu data, and generates the compression-coded menu data including a menu screen with a good image quality.
    Type: Application
    Filed: September 18, 2007
    Publication date: November 12, 2009
    Inventor: Hiroaki Shimazaki
  • Publication number: 20090263105
    Abstract: The present invention provides a recording apparatus that generates a transport stream so that a boundary between recording units (aligned units) and a file division point (i.e., a boundary between GOPs) always coincide with each other without obtaining information on the file size or the like. When generating a transport stream by time-division multiplexing transport packets, n or more transport packets (e.g., null packets N) other than a video packet are inserted between a video packet group generated from a single encoding unit (GOP) and a video packet group subsequent to the video packet group. When d indicates the data length of the transport packet, h indicates the data length of a fixed-length header added to each of the transport packets before being recorded on a data recording medium, and L indicates a recording unit length to the data recording medium, L?(n+1)×(d+h) is satisfied.
    Type: Application
    Filed: October 24, 2006
    Publication date: October 22, 2009
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Masafumi Sato, Hiroaki Shimazaki, Masanori Itoh
  • Patent number: 7573532
    Abstract: An image processing device is comprised of a parameter storing unit (i) storing a plurality of inverse gamma correction parameters, color conversion parameters, gamma correction parameters and the like, and (ii) selecting one parameter from each of a plurality of such parameters according to an inputted image signal. Further, the image processing device includes an image signal processing unit performing image signal processes such as inverse gamma correction, color conversion, gamma correction and the like, on the basis of the parameters selected by the parameter storing unit.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: August 11, 2009
    Assignee: Panasonic Corporation
    Inventors: Hiroaki Shimazaki, Kenjirou Tsuda, Kunihiko Sakoda