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: 8189992
    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: Grant
    Filed: November 16, 2006
    Date of Patent: May 29, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Masahiro Kageyama, Tomokazu Murakami, Susumu Yoshida
  • Patent number: 8189991
    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: Grant
    Filed: November 16, 2006
    Date of Patent: May 29, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Masahiro Kageyama, Tomokazu Murakami, Susumu Yoshida
  • Patent number: 8184950
    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: Grant
    Filed: November 16, 2006
    Date of Patent: May 22, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Masahiro Kageyama, Tomokazu Murakami, Susumu Yoshida
  • Patent number: 8184949
    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: Grant
    Filed: November 16, 2006
    Date of Patent: May 22, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Masahiro Kageyama, Tomokazu Murakami, Susumu Yoshida
  • Patent number: 8184948
    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: Grant
    Filed: November 16, 2006
    Date of Patent: May 22, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Masahiro Kageyama, Tomokazu Murakami, Susumu Yoshida
  • Patent number: 8089557
    Abstract: A video signal processing apparatus, for achieving high resolution, with using a small number of frames, as an input videos signal, comprises: an input unit, into which a video frame is inputted; and a resolution converter unit for obtaining an output video frame by increasing a number of pixels building up the input video frame, wherein the resolution converter unit has a same-brightness direction estimation unit, which is configured to produce a sampling phase difference for each video data, by estimating a same-brightness direction for each video data on the input video frame, and the resolution converter unit conducts a high resolution process of video with using the sampling phase difference, which is produced by the same-brightness direction estimation unit.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: January 3, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Masahiro Kageyama, Koichi Hamada, Kenichi Yoneji
  • Patent number: 7830369
    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: Grant
    Filed: April 13, 2007
    Date of Patent: November 9, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Masahiro Kageyama, Koichi Hamada, Shigeki Nagaya
  • Patent number: 7751693
    Abstract: In an image recording/reproduction method for recording image information on a recording medium by using a computer, a verify mode is set into the OFF state when recording image information on said recording medium. In addition, use as a write or read region a specified region of the recording medium which is greater than or equal to a unitary data size being handled during error correction processing to be performed when writing or reading image information on or out of said recording medium. Additionally, upon reading of image information from the recording medium, any image information that has experienced read errors will never be read again.
    Type: Grant
    Filed: October 3, 2005
    Date of Patent: July 6, 2010
    Assignee: Hitachi Kokusai Electric, Inc.
    Inventors: Tomomi Takada, Hirotada Ueda, Seiichi Hirai, Masahiro Kageyama, Hisao Tanabe
  • Patent number: 7733373
    Abstract: In a cellular phone terminal, a bit error rate measurement section measures a bit error rate of broadcast data received by a broadcast reception section for receiving a digital broadcast to output broadcast data while a transmission operation of a communication transmission section for wirelessly communicating with a broadcasting communication network is performed. When the measured bit error rate is equal to or higher than a predetermined threshold, stopping of the transmission operation of the communication transmission section is instructed. Thus, a failure such as interruption of television broadcasting reproduction can preliminarily be prevented by avoiding error occurrence in reception of the 1 segment broadcasting service due to an influence of a transmission electric wave in data communication. As a result, stable reception of the 1 segment broadcasting service can be executed.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: June 8, 2010
    Assignee: Casio Hitachi Mobile Communications Co., Ltd.
    Inventors: Yasuhiro Akiyama, Koichi Hamada, Masahiro Kageyama, Osamu Hasegawa
  • Publication number: 20100074536
    Abstract: To perform an image processing for high resolution more suitably on even an image signal having images with different resolutions mixed therein. An image signal processing method of the present invention includes the steps of: performing a spatial low pass filter processing on a first image signal that is an input image; generating a second image signal by performing an image processing for high resolution on an image after the low pass filter processing; comparing corresponding regions in the first image signal and the second image signal; and selecting either of the first image signal and the second image signal with respect to the region based on this comparison result.
    Type: Application
    Filed: May 29, 2009
    Publication date: March 25, 2010
    Inventors: Koichi Hamada, Masahiro Kageyama, Kenichi Yoneji
  • Publication number: 20100020240
    Abstract: The present invention relates to a technology of appropriately improving image resolution. According to an image signal processing method of the present invention, an input video signal contains an image signal whose pixel size is converted at a specified magnification scale. The input image signal is used to calculate sampling frequencies for image signals before and after the pixel size conversion. A ratio of sampling frequencies before and after the pixel size conversion is used to determine the specified magnification scale. A sampling phase for the image signal before the pixel size conversion is calculated from the input image signal after the pixel size conversion. A sampling carrier for the image signal before the pixel size conversion is generated from the sampling frequency and the sampling phase both before the pixel size conversion.
    Type: Application
    Filed: June 19, 2009
    Publication date: January 28, 2010
    Inventors: Masahiro Kageyama, Koichi Hamada, Kenichi Yoneji
  • Patent number: 7639706
    Abstract: A data synchronized playback apparatus comprises a buffer which stores streaming data, a buffer fill quantity measurement unit which measures the amount of streaming data stored in the buffer, a decoder which decodes the streaming data and sends decoded data to a D/A converter, a D/A converter which converts the decoded data to an analog signal, a clock generator which generates a clock signal with a frequency that changes according to the measured data quantity, and the digital/analog converter operates based on the clock signal generated by the clock generator.
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: December 29, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Koichi Hamada, Muneaki Yamaguchi, Toru Yokoyama, Yasuhiro Akiyama, Masahiro Kageyama
  • Patent number: 7535348
    Abstract: A surveillance system having surveillance terminals and a surveillance center is configured to perform effective hazard alert signaling, depending on the hazard type. The surveillance system comprises a plurality of surveillance terminals, which are connected to the surveillance center by a network, carries out hazard and alert signaling. One surveillance terminal detects a hazard and sends a hazard information signal reporting what hazard has just been detected to the surveillance center. The surveillance center receives the hazard information signal, identifies what type of hazard source and the surveillance terminal that sent the hazard information signal, selects surveillance terminals to be alerted to the hazard from among the plurality of surveillance terminals, depending on the identified type of the hazard source and its locality, and sends a hazard alert signal to the selected surveillance terminals.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: May 19, 2009
    Assignees: Hitachi, Ltd., Panasonic Corporation
    Inventors: Keisuke Inata, Taku Nakamura, Masahiro Kageyama, Hiroyasu Ohtsubo, Takuya Imaide, Teruki Niki, Masaomi Ueda, Hiroaki Yoshio
  • Publication number: 20090091653
    Abstract: A video signal processing apparatus, for achieving high resolution, with using a small number of frames, as an input videos signal, comprises: an input unit, into which a video frame is inputted; and a resolution converter unit for obtaining an output video frame by increasing a number of pixels building up the input video frame, wherein the resolution converter unit has a same-brightness direction estimation unit, which is configured to produce a sampling phase difference for each video data, by estimating a same-brightness direction for each video data on the input video frame, and the resolution converter unit conducts a high resolution process of video with using the sampling phase difference, which is produced by the same-brightness direction estimation unit.
    Type: Application
    Filed: October 3, 2008
    Publication date: April 9, 2009
    Inventors: Masahiro KAGEYAMA, Koichi Hamada, Kenichi Yoneji
  • Publication number: 20090080804
    Abstract: A technique is provided for reducing the size of each of images included in an image signal and generating a high-resolution image with minimized degradation in the image quality from the reduced images. Alias components and motion information that are included in the image signal having the reduced images are used for conversion of the images included in the image signal into a high-resolution image. Low pass filtering is performed on a frequency component in the direction of a motion included in the image signal and a frequency component in a direction other than the direction of the motion. The cut-off frequency of the low pass filter in the direction other than the direction of the motion is lower than the cut-off frequency of the low pass filter in the direction of the motion.
    Type: Application
    Filed: August 28, 2008
    Publication date: March 26, 2009
    Inventors: Koichi HAMADA, Masahiro KAGEYAMA, Shigeki NAGAYA
  • Publication number: 20090060365
    Abstract: To provide a processing method for reducing motion blur while increasing resolution. By performing a super-resolution process, a resolution-increased image is obtained from an input image in multiple frames. By performing an enlargement process, an enlarged image is obtained from the input image in one frame. A high-frequency image is obtained by subtracting the enlarged image from the resolution-increased image. A high spatial frequency-emphasized image is obtained by adding the high-frequency image to the resolution-increased image. The enlarged image and high spatial frequency-emphasized image are displayed alternately every half frame.
    Type: Application
    Filed: July 28, 2008
    Publication date: March 5, 2009
    Inventors: Koji NAGATA, Naruhiko KASAI, Yasuyuki KUDO, Junichi MARUYAMA, Masahiro KAGEYAMA, Shigeki NAGAYA
  • Publication number: 20090034941
    Abstract: A recording/reproducing apparatus for outputting a video achieving high resolution thereupon, while suppressing an amount of data to be recorded onto a recording medium, comprises an input unit for inputting a video signal therein, a recording medium for recording the video signal inputted, a recording/reproducing processor unit for conducting signal processing for reproducing the video signal from the recording medium and an operation control of that recording medium, an exchanger for providing an output with switching between the video signal from the input unit and the signal from the recording/reproducing processor unit, and a resolution conversion unit for producing the video signal with increasing the pixel number of the video from the exchanger.
    Type: Application
    Filed: July 30, 2008
    Publication date: February 5, 2009
    Inventors: Masahiro KAGEYAMA, Eiji Moro
  • Publication number: 20090034938
    Abstract: A recording/reproducing apparatus for outputting a video achieving high resolution thereupon, while suppressing an amount of data to be recorded onto a recording medium, comprises an input unit for inputting a video signal therein, a first recording medium for recording the video signal inputted, a resolution conversion unit for producing the video signal, with increasing the pixel number of the video from the first recording medium, and a second recording medium for recording the video signal produced by the resolution conversion unit thereon.
    Type: Application
    Filed: July 30, 2008
    Publication date: February 5, 2009
    Inventors: Masahiro KAGEYAMA, Eiji Moro
  • Publication number: 20090009660
    Abstract: The present invention provides a technology for achieving high resolution of video signals, preferably, with a small number of frames of a video signal or a motion picture. The video signal processing apparatus comprises an input unit, into which a plural number of video frames, and a resolution converter unit, having characteristics for resolution conversion differing depending on the direction, in which an object to be photographed moves on that input video frame, by composing the plural number of video frames inputted, and for obtaining an output video frame by increasing a number of pixels building up the video frame, whereby obtaining high-resolution video with using an output result of that resolution converter unit.
    Type: Application
    Filed: July 3, 2008
    Publication date: January 8, 2009
    Inventors: Masahiro KAGEYAMA, Koichi Hamada, Shigeki Nagaya, Takehiro Fujita
  • Patent number: 7457521
    Abstract: A first video file managed by a first directory having a DVD standard and a second video file which has High-resolution are recorded on optical disc. Reference information in order to refer to said second video data is recorded in said first video file. This makes it possible to store video data by a different compression method on the standard DVD disc as well as standard DVD video data.
    Type: Grant
    Filed: January 2, 2004
    Date of Patent: November 25, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Osamu Komoda, Tamotsu Ito, Masahiro Kageyama