Patents by Inventor Toshihiro Ishizaka

Toshihiro Ishizaka 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).

  • Publication number: 20050078939
    Abstract: A reproduction apparatus reproduces view data including several tracks within a range of reproduction processing capacity.
    Type: Application
    Filed: October 2, 2002
    Publication date: April 14, 2005
    Inventors: Fumitaka Kawate, Makoto Yamada, Mitsuhiro Hirabayashi, Toshihiro Ishizaka
  • Patent number: 6871205
    Abstract: A digital recording apparatus using a disc shaped record medium is disclosed, that comprises a means for extracting outlined information of each of a plurality of files recorded on the disc shaped record medium, a means for correlating the extracted outlined information and the plurality of files and generating an index file, and a means for recording the index file to a predetermined position of the disc shaped record medium, wherein when a predetermined operation mode is performed, a plurality of types of data of the plurality of files are output in a predetermined format.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: March 22, 2005
    Assignee: Sony Corporation
    Inventors: Makoto Yamada, Satoshi Tsujii, Toshihiro Ishizaka
  • Publication number: 20050013208
    Abstract: A recording apparatus, a reproduction apparatus, and a file management method are disclosed wherein the operability in management of a large number of files recorded on a recording medium using an index file can be improved significantly further than ever. An index file is formed from a series of entries of extract information from a large number of files. Information indicative of a relationship between the files is set to the index file. The index file is used to manage a large number of files and so forth recorded on a recording medium.
    Type: Application
    Filed: January 19, 2004
    Publication date: January 20, 2005
    Inventors: Mitsuhiro Hirabayashi, Fumitaka Kawate, Toshihiro Ishizaka
  • Publication number: 20040146284
    Abstract: A recording apparatus, a reproduction apparatus and a file management method are disclosed wherein, even if one of files recorded on a recording medium cannot be reproduced regularly, another file selected by the user can be reproduced normally. A file having a hierarchical structure formed from video data and audio data both in the form of compressed data together with information necessary for processing of the video data and audio data is produced and recorded on a predetermined recording medium. Upon production of the file, information regarding decoding of the video data and audio data is disposed collectively on the top side of the file.
    Type: Application
    Filed: January 19, 2004
    Publication date: July 29, 2004
    Inventors: Fumitaka Kawate, Makoto Yamada, Mitsuhiro Hirabayashi, Toshihiro Ishizaka
  • Publication number: 20040076400
    Abstract: The present invention provides an editing apparatus, a reproducing apparatus, and a recording medium for reproducing special effects by full use of the capabilities of the reproducing apparatus. The editing apparatus having original video data and edited data that are a collection of editing codes for performing an editing operation with a desired editing type on a desired portion in the original video data to generate edited video data includes a primary conversion table attaching means for attaching, to the editing video data, a primary conversion table for correlating at least the desired editing type with a standard editing type specified as standard in advance.
    Type: Application
    Filed: November 10, 2003
    Publication date: April 22, 2004
    Inventors: Fumitaka Kawate, Makoto Yamada, Mitsuhiro Hirabayashi, Toshihiro Ishizaka
  • Publication number: 20040047597
    Abstract: An entry property 2 contained in an entry property identifies normal or system. The normal represents an entry of entity data. The system represents an entry which describes a definition of flags. The flags represent attribute information of a file. The flags are defined by an apparatus or a user. An entry property 3 identifies valid or invalid of the entry. An entry property 4 represents whether or not a file registered to the entry references another file. A referred counter represents the number of files referred from another file. When a designated file is referenced from another file, a referring file list represents a file which references the designated file. With these information, a reference relation of files can be described.
    Type: Application
    Filed: April 3, 2003
    Publication date: March 11, 2004
    Inventors: Mitsuhiro Hirabayashi, Kenichiro Aridome, Toshihiro Ishizaka
  • Publication number: 20030138100
    Abstract: A recording apparatus according to the present invention comprises converting means 15, 18, and 19 and recording means 23, 24, 32, and 33. The converting means 15, 18, and 19 convert the data structure of data into a file structure handled by software. The recording means 23, 24, 32, and 33 record data on a record medium. The file structure has a first data unit as entity data, a second data unit as a set of a plurality of first data units, and a data portion describing management information for managing the relation of the plurality of first data units and attributes of entity data of the first data units. The data portion contains security information for protecting intangible property rights of data.
    Type: Application
    Filed: December 6, 2002
    Publication date: July 24, 2003
    Inventors: Toshihiro Ishizaka, Makoto Yamada, Ryuji Ishiguro
  • Publication number: 20030133695
    Abstract: The present invention relates to a recording apparatus and a record medium for recording a data read time, a seek time, a successive reproduction time, a successive record length, and a correlation among data pieces.
    Type: Application
    Filed: September 12, 2002
    Publication date: July 17, 2003
    Inventors: Mitsuhiro Hirabayashi, Toshihiro Ishizaka, Satoshi Tsujii, Makoto Yamada
  • Publication number: 20030093634
    Abstract: The invention relates to a data recording method, a data recording apparatus, and a recording medium, in which even if a fault occurred in a management file for managing time-sequential data, the management file can be generated again.
    Type: Application
    Filed: August 22, 2002
    Publication date: May 15, 2003
    Inventors: Makoto Yamada, Toshihiro Ishizaka, Mitsuhiro Hirabayashi
  • Publication number: 20020064281
    Abstract: MAC values formed with respect to each file belonging to a directory 122A and ICVs (D-ICVc) formed on the basis of the MAC values of all files belonging to the directory 122A are stored into a sequence page 121A. Sequence pages 121A, 121B, . . . formed respectively with respect to all of directories 122A, 122B, . . . on a disk and the ICVs formed on the basis of the D-ICVs stored in all of the sequence pages 121A, 121B, . . . are stored into a sequence block 114. Since the MAC values are closed and managed every directory by the sequence pages 121A, 121B, . . . , a data alteration check can be executed every directory. An alteration check of data recorded on a recording medium can be efficiently performed.
    Type: Application
    Filed: August 31, 2001
    Publication date: May 30, 2002
    Inventor: Toshihiro Ishizaka
  • Patent number: 5610658
    Abstract: An amount-of-movement detection device which is capable of detecting the amount of movement with a high degree of accuracy when the amount of movement of an image is detected by hierarchical block matching method. An amount-of-movement detection device 1 forms image data S2.sub.n and S3.sub.n of plural hierarchies having different resolutions from each other, by input image S1.sub.n input at a first point in time, and forms multiplexed image data S2.sub.n-1 and S3.sub.n-1 of a higher hierarchy of low resolution, based on an input image S1.sub.n-1 input at a second point in time, by selecting pixels overlapping with each other from the image data of the lower hierarchy having higher resolution and reducing them in size, in order to detect a motion vector by block matching at a predetermined block unit for each of the hierarchies corresponding to the hierarchized image data S2.sub.n and S3.sub.n and the multiplexed and hierarchized image data S2.sub.n-1 and S3.sub.n-1.
    Type: Grant
    Filed: January 30, 1995
    Date of Patent: March 11, 1997
    Assignee: Sony Corporation
    Inventors: Masashi Uchida, Tetsujiro Kondo, Hideo Nakaya, Takashi Horishi, Toshihiro Ishizaka