Patents by Inventor Masahiro Kageyama

Masahiro Kageyama 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: 7437301
    Abstract: On an information registering equipment, content of interest rendered by media, such as a video image of interest distributed by TV broadcasting is captured and displayed. Position/area on the image are defined with a mouse or the like to obtain the target position/area. Information to identify the content is obtained from the TV tuner. Reference information is obtained through input means or by retrieval from the server for reference information. The obtained information specifics are transmitted to an information search equipment that in turn stores then into its database. An information viewing equipment obtains the target position/area and information to identify the content of interest and transmits the thus obtained data to the information search equipment. The information search equipment matches that data with each data record in the database and transmits reference information to the information viewing equipment on which the reference information is displayed.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: October 14, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Masahiro Kageyama, Tomokazu Murakami, Hisao Tanabe
  • Publication number: 20080170159
    Abstract: For achieving a video display of high picture quality, a video signal processing method comprises the following steps of: a step for produce a sub-field light-ON pattern signal for controlling light-ON or -OFF at a pixel, during said plural number of sub-field periods, depending a pixel value of the pixel in the input video; and a signal correcting step for correcting said sub-field light-ON pattern signal, with using a motion vector obtained through a motion vector search, which is conducted on a first frame in said input video and a second frame, time-sequentially prior to said first frame, wherein said sub-field light-ON pattern signal has light-ON pattern signal for each pixel during each of the sub-field periods between said second frame and said first frame, and said signal correcting step determines the light-ON pattern information of one pixel during one sub-field period, with using a motion vector passing said one pixel within said sub-field among said motion vectors, while determining light-ON patte
    Type: Application
    Filed: October 19, 2007
    Publication date: July 17, 2008
    Inventors: Yasuhiro Akiyama, Koichi Hamada, Hideharu Hattori, Masahiro Kageyama
  • Publication number: 20080074537
    Abstract: For providing a technology for preferably achieving high resolution of video signals of a video signal or moving video, with a small number of frames thereof, a video signal processing apparatus comprise an input unit to be inputted a plural number of video frames, a resolution converter unit, having resolution converting characteristics differing from each other, depending on a direction thereof, by composing 2 pieces of the video frames from the inputted video frames, thereby increasing a number of pixels making up the video frames, and a mixer unit for obtaining the output video frame by mixing output results of the resolution converter unit.
    Type: Application
    Filed: August 31, 2007
    Publication date: March 27, 2008
    Inventors: Masahiro Kageyama, Koichi Hamada, Shigeki Nagaya
  • Publication number: 20080018786
    Abstract: A video signal processing apparatus, for achieving high resolution of a video signal, in particular, the video signal of moving pictures, preferably, comprises a motion estimation portion (101) for estimating a sampling phase difference with using video data on an input video frame as a reference and each video data on other input video frame, a motion compensation/up-rate portion (115) for compensating motion of the video data of the each input video frame with using information of said sampling phase difference, as well as, to increase the number of pixels to n times, a phase shift portion (116) for shifting the video data of each of the video frames, the pixel number of which is increased, by a predetermined amount, a coefficient determining portion, which is configured to determine a coefficient with using information of said sampling phase difference; and an aliasing component removal portion (117) for removing (n?1) pieces of aliasing components, by adding each of video data in front and back of said ph
    Type: Application
    Filed: April 13, 2007
    Publication date: January 24, 2008
    Inventors: Masahiro Kageyama, Koichi Hamada, Shigeki Nagaya
  • Patent number: 7320012
    Abstract: File management method having first and second processing modes for storing file type information for discrimination between first and second processing modes in recording medium as file management information associated with file for file management. In first processing mode, when data in the form of file is written on a recording medium and a write error occurs, replacement processing to another write area is performed to write the data in another area. In second processing mode, when write error occurs, the replacement processing to other write area is not performed to write the data. Method includes reading file type information associated with a file to be processed from recording medium, converting the file type from file type indicative of first processing mode to file type indicative of second processing mode, and writing the file type after conversion in recording medium as file management information associated with the file to be processed.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: January 15, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Masahiro Kageyama, Hisao Tanabe, Tomokazu Murakami
  • Patent number: 7302166
    Abstract: A computer-readable storage medium storing thereon a procedure for controlling a computer to play back a storage medium storing one or more still pictures and still picture group management information for managing one or more still pictures as a still picture group. The procedure including reading out the still picture management information from the still picture group management information in said storage medium. The still picture group management information is classified into a first type of still picture management information, a second type of still picture management information a third type of still picture management information on a still picture with only a post-recorded audio added to the still picture already recorded, or a fourth type of still picture management information. The still picture management information has a data size designated by the type.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: November 27, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Akira Date, Masahiro Kageyama, Tamotsu Ito
  • Patent number: 7302165
    Abstract: A playback apparatus for playing back picture information from a storage medium storing one or more still pictures and still picture group management information for managing one or more still pictures as a still picture group. The apparatus includes a device for reading out the still picture group management information from the storage medium; and a memory for storing the still picture group management information read out from the storage medium. The still picture group management information is classified into a first type of still picture management information, a second type of still picture management information, a third type of still picture management information, or a fourth type of still picture management information. The still picture group management information includes still picture management information having a data size designated by the type.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: November 27, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Akira Date, Masahiro Kageyama, Tamotsu Ito
  • Publication number: 20070248331
    Abstract: A video signal recording and reproducing apparatus is provided that is capable of reducing the encoding amount required for video recording thereby to record a longer video signal while suppressing deterioration of image quality when the video is displayed. An apparatus is also provided that is similarly capable of efficiently transmitting the video signal with a smaller transmission capacity during transmission of the video signal. A structure constituting the present invention comprises: a decoding unit which decodes an inputted video signal into video frames; a decimation unit which decimates the number of video frames decoded by the decimation unit; an encoding unit which encodes the video frames decimated by the decimation unit into encoded video signals; and a storage device which stores the video signals encoded by the encoding unit, wherein the decimation unit performs decimation for each video signal.
    Type: Application
    Filed: April 24, 2007
    Publication date: October 25, 2007
    Inventors: Koichi Hamada, Muneaki Yamaguchi, Masahiro Kageyama
  • Publication number: 20070250893
    Abstract: Disclosed herein is a digital broadcasting receiving apparatus that can offer high-definition images with appropriate image quality correction by setting the quantity of image quality correction with reference to encoding information and image information in pixel blocks. The apparatus includes an image processing unit for performing image processing on decoded image signals. This image processing unit has a noise detection unit for detecting noise information for each pixel block based on encoding information of images included in digital broadcasting signals, a setting unit for setting the quantity of image quality correction based on noise information detected by the noise detection unit and image information for each pixel block of the decoded image signals, and a unit for performing image quality correction on each pixel block of the decoded image signals with the quantity of image quality correction set by the image quality setting unit.
    Type: Application
    Filed: January 8, 2007
    Publication date: October 25, 2007
    Inventors: Yasuhiro AKIYAMA, Koichi Hamada, Muneaki Yamaguchi, Takashi Maruyama, Kouji Kamogawa, Masahiro Kageyama
  • Publication number: 20070242080
    Abstract: An object of the present invention is to provide a technique of appropriately compensating for loss of even an entire image frame due to data error such as a transmission error to allow display of a high quality image. An image display apparatus of the present invention comprises: a decoding unit which decodes an encoded bit stream into an image signal; an interpolation image generating unit which generates an interpolation frame based on frames of the decoded image signal; and a control unit which detects an error in the encoded bit stream and controls the interpolation image generating unit; wherein when a frame of the encoded bit stream is lost (that is, it has not been able to be decoded) due to an uncorrectable error, the above interpolation frame is displayed instead of the lost frame.
    Type: Application
    Filed: February 8, 2007
    Publication date: October 18, 2007
    Inventors: Koichi HAMADA, Masahiro Kageyama, Muneaki Yamaguchi
  • Patent number: 7260313
    Abstract: A recording apparatus for recording one or more still pictures and still picture group management information for managing the one or more still pictures as a still picture group onto a storage medium and a storage medium therefor. A memory is provided which stores the still picture group management information. Apparatus is provided which records the still picture group management information stored in the memory to the storage. When the still picture is recorded, apparatus is provided which selects first still picture management information or selects second still picture management information in accordance with audio, and apparatus which records the first or second still picture management information in the still picture group management information in the same order of recording corresponding still pictures.
    Type: Grant
    Filed: January 17, 2002
    Date of Patent: August 21, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Akira Date, Masahiro Kageyama, Tamotsu Ito
  • Patent number: 7228055
    Abstract: To connect two divided and multiplexed streams seamlessly, a gap between video and audio playback times has to be adjusted. And, to make this adjustment, every conventional method has been required to process mass data by extracting and re-encoding the elementary streams and re-arranging the data, so that the data cannot be handled by any video cameras. However, the present invention has successfully solved the above conventional problems as follows. An audio packet disposed at the start of a following stream to be connected is replaced with a null packet if its playback start time precedes that of the video packet. Then, soundless audio packets are added at the end of the preceding stream, thereby eliminating the gap between video and audio playback times in both of the streams to realize the required seamless connection.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: June 5, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Tomokazu Murakami, Masahiro Kageyama, Nobuhiro Sekimoto, Hisao Tanabe
  • Publication number: 20070065108
    Abstract: Data management information includes: recording time zone information (REC_TM_ZONE) at a time of recording data, first data recording time information indicating a recording time of data first recorded on the data group; second data recording time information indicating a recording time of data last recorded on the data group; and a flag indicating whether the recording time zone information (REC_TM_ZONE) at the time of recording the data specifies a time difference from the world standard time (Greenwich Mean Time) at the data recording time; specifying unit specifies the time difference from the world standard time (Greenwich Mean Time) in the location where the data has been recorded, at only a case where the flag indicates that the recording time zone information (REC_TM_ZONE) at the data recording time specifies the time difference from the world standard time (Greenwich Mean Time) in the location where the data has been recorded.
    Type: Application
    Filed: November 16, 2006
    Publication date: March 22, 2007
    Inventors: Masahiro Kageyama, Tomokazu Murakami, Susumu Yoshida
  • Publication number: 20070058942
    Abstract: Total management information includes time zone information (TM_ZONE) indicating a time difference between a world standard time (Greenwich Mean Time) and a standard time in a predetermined location, wherein the data management information includes recording time zone information (REC_TM_ZONE) at a time of recoding the data, indicating a time difference between the world standard time (Greenwich Mean Time) and a standard time in a location where the data has been recorded; and data recording time information (REC_TM) indicating a recording time when the data has been recorded, and wherein the reproduction apparatus further includes a unit for specifying a local time in a location where the data recording time has been recorded, while the data is reproduced, in accordance with the data recording time information (REC_TM), the time zone information (TM_ZONE), and the recording time zone information (REC_TM_ZONE) at the data recording time.
    Type: Application
    Filed: November 16, 2006
    Publication date: March 15, 2007
    Inventors: Masahiro Kageyama, Tomokazu Murakami, Susumu Yoshida
  • Publication number: 20070058938
    Abstract: Data management information includes: recording time zone information (REC_TM_ZONE) at a time of recording data, indicating a time difference between the world standard time (Greenwich Mean Time) and a standard time in a location where the data of the group data for managing the data management information; first data recording time information indicating a recording time of data first recorded on the data group; and second data recording time information indicating a recording time of data last recorded on the data group, and wherein the reproduction apparatus further includes a unit for specifying respective local recording times in locations where the first recorded data and the last recorded data has been recorded, respectively, while the data is reproduced, in accordance with the first and second data recording time information, the time zone information (TM_ZONE), and the recording time zone information (REC_TM_ZONE) at the data recording time.
    Type: Application
    Filed: November 16, 2006
    Publication date: March 15, 2007
    Inventors: Masahiro Kageyama, Tomokazu Murakami, Susumu Yoshida
  • Publication number: 20070058941
    Abstract: Data management information includes recording time zone information (REC_TM_ZONE) at a time of recoding the data, indicating a time difference between the world standard time (Greenwich Mean Time) and a standard time in a location where the data has been recorded; and data recording time information (REC_TM) indicating a recording time when the data has been recorded, in accordance with the standard time indicated by the time zone information (TM_ZONE) wherein the reproduction apparatus includes means for reproducing the data; and specifying means for specifying a local recording time in a location where the data has been recorded, and wherein the specifying means calculates the local recording time in the location where the data has been recorded, by (REC_TM)?(TM_ZONE)+(REC_TM_ZONE) where (REC_TM) is the data recording time information, (TM_ZONE) is the time zone information, and (REC_TM_ZONE) is the recording time zone information.
    Type: Application
    Filed: November 16, 2006
    Publication date: March 15, 2007
    Inventors: Masahiro Kageyama, Tomokazu Murakami, Susumu Yoshida
  • Publication number: 20070058940
    Abstract: Arrangements including a specifying unit for specifying a local recording time in a location where the data has been recorded, in accordance with in accordance with the data recording time information (REC_TM), the time zone information (TM_ZONE), and the recording time zone information (REC_TM_ZONE) at the data recording time, and wherein the specifying means specifies the local recording time in the location where the data has been recorded, at only a case where the flag indicates that the recording time zone information (REC_TM_ZONE) at the data recording time specifies the time difference from the world standard time (Greenwich Mean Time) in the location where the data has been recorded.
    Type: Application
    Filed: November 16, 2006
    Publication date: March 15, 2007
    Inventors: Masahiro Kageyama, Tomokazu Murakami, Susumu Yoshida
  • Publication number: 20070058939
    Abstract: A reproduction apparatus includes a specifying unit for specifying a local recording time in a location where the data first or last recorded on the data group has been recorded while the data is reproduced, and wherein the specifying means calculates, by (REC_TM)?(TM_ZONE)+(REC_TM_ZONE), a recording time at the local time of the data first recorded on the data group in accordance with the first data recording time information (REC_TM), the time zone information (TM_ZONE) and the recording time zone information (REC_TM_ZONE) at the data recording time; and a recording time at the local time of the data last recorded on the data group in accordance with the second data recording time information (REC_TM), the time zone information (TM_ZONE) and the recording time zone information (REC_TM_ZONE) at the data recording time, respectively.
    Type: Application
    Filed: November 16, 2006
    Publication date: March 15, 2007
    Inventors: Masahiro Kageyama, Tomokazu Murakami, Susumu Yoshida
  • Publication number: 20070036521
    Abstract: A method of recording data of one or more still pictures and still picture group management information for managing said one or more still pictures as a still picture group onto a storage medium, wherein said still picture group management information includes a first recording time at which the still picture data in said still picture group was recorded first and a last recording time at which the still picture data in said still picture group was recorded last, and when new still picture data is recorded in said storage medium, said first recording time in said still picture group management information is replaced by a recording time of the new still picture data.
    Type: Application
    Filed: October 18, 2006
    Publication date: February 15, 2007
    Inventors: Akira Date, Masahiro Kageyama, Tamotsu Ito
  • Patent number: 7146093
    Abstract: A recording apparatus for recording, on an optical disk recording medium which is computer readable, N (N is an integer) pieces of data, data management information for managing the N pieces of data, and total managagement information for managing the N pieces of data. Time zone information (TM_ZONE) indicating a time difference between a world standard time and a standard time and a standard time in a predetermined location is recorded on the total management information. Further, on the data management information is recorded, recording time difference between (REC_TM_ZONE) at a time of recording data indicating a time difference between the world standard time and a standard time in a location where the data have been recorded, and data recording time information (REC_TM) indicating a time at recorded the data in accordance with the standard time indicated by the time zone information (TM_ZONE).
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: December 5, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Masahiro Kageyama, Tomokazu Murakami, Susumu Yoshida