Patents by Inventor Yoshihisa Fukushima

Yoshihisa Fukushima 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: 7076623
    Abstract: The present invention provides an information update count managing method, including: a write step of writing pieces of information in a predetermined order in an information storage area including at least one WORD of a non-volatile memory, wherein information can be written to the non-volatile memory in a unit of WORDs, each WORD including a plurality of bits, and information can be erased from the non-volatile memory in a unit of sectors, each sector including a plurality of WORDS; and a read step of reading out the last piece of information which has been written in the information storage area within a predetermined permitted update count.
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: July 11, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Motoshi Ito, Yoshihisa Fukushima, Shinji Sasaki
  • Patent number: 7072256
    Abstract: An information recording medium comprises a user area, and a spare area including a replacement area, wherein the replacement area may be used instead of a defective area in the user area. The user area and the spare area include a plurality of sectors. Each of the plurality of sectors includes a user data area for recording user data, and an attribute data area for recording defect replacement allowance attribute data. The defect replacement allowance attribute data indicates whether recording of the user data has been executed in a state that the execution of a defect replacement process is allowed. In the defect replacement process, the defective area in the user area is replaced with the replacement area in the spare area.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: July 4, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroshi Ueda, Motoshi Ito, Kenji Takauchi, Yoshihisa Fukushima, Shinji Sasaki
  • Patent number: 7061850
    Abstract: A main information area 31 capable of recording an information signal and a subsidiary information area 32 for recording subsidiary information that is different from the information signal are divided in one principal plane direction of a substrate, and an information layer for recording the information signal in the main information area 31 is provided also in the subsidiary information area 32, and medium identification information for distinguishing the medium optically is recorded in the information layer of the subsidiary information area 32 without changing the shape of the information layer. As a result, the medium identification information can be recorded in an optical recording medium 1 stably. In particular, the initialization of a phase change type optical recording medium and the recording of the medium identification information can be performed at the same time, so that the production process can be simplified, and the production costs can be reduced.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: June 13, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroaki Irie, Keiichiro Horai, Kenichi Nishiuchi, Yoshihisa Fukushima, Mitsuaki Oshima
  • Patent number: 7062626
    Abstract: According to a recording method for a conventional rewritable disc, the latest data is recorded by rewriting data in an identical area. In the case of a disc of which the number of times of data rewrite is limited, this causes a problem that a defect block is easily generated. The present invention has an objective of providing an information recording medium, an information recording and reproduction method, and an information recording and reproduction system apparatus, by which data is recorded sequentially from an unallocated area after an entry sector number, and data recording is sequentially repeated from an inner portion to an outer portion.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: June 13, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Miyuki Sasaki, Yoshiho Gotoh, Yoshihisa Fukushima
  • Publication number: 20060114810
    Abstract: An information recording medium including a plurality of sectors of the present invention includes: a first spare area including a spare sector for replacing a defective sector among the plurality of sectors; a defect management information area for managing the replacement of the defective sector by the spare sector; and a volume space in which user data can be recorded. The volume space is configured so that a second spare area including a spare sector for replacing a defective sector among the plurality of sectors can be additionally allocated. Location information indicating a location of the second spare area is recorded in the defect management information area.
    Type: Application
    Filed: January 12, 2006
    Publication date: June 1, 2006
    Inventors: Yoshiho Gotoh, Motoshi Ito, Hiroshi Ueda, Yoshihisa Fukushima
  • Patent number: 7050701
    Abstract: In the case of a conventional data structure of a disk on which data is recorded by a CD-R multisession method, a dedicated command is needed to read the latest file structure recorded during the last session by reading chainedly the first address of the subsequent session recorded in the read-in area of a session, and it is necessary to close the session so as to read data by means of a reproduction-only device. According to the invention, a set of information on management of unrecorded areas and a set of information on management of file structure/file information are recorded as chain-type information (111, 115, . . . ) and are read chainedly in a volume space so as to acquire the latest management information. Open maintenance information (105, 125) is recorded at the start of recording and close maintenance information (107, 126) is recorded at the end of the recording. The information is read chainedly, and thus information on volume is acquired.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: May 23, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Miyuki Sasaki, Yoshiho Goto, Yoshihisa Fukushima
  • Publication number: 20060101219
    Abstract: A recording method is provided for recording data into an information recording medium, in which the number of data rewrites into the same area is limited. The recording method comprises the steps of (a) performing a search for unallocated areas in an information recording area and retaining, in a memory, unallocated area identifying information for identifying at least one unallocated area found by the search, (b) determining whether or not an unallocated area satisfying a record request is present among the at least one unallocated areas identified by the unallocated area identifying information, and (c) when an unallocated area satisfying a record request is present among the at least one unallocated areas identified by the unallocated area identifying information, allocating the unallocated area as an area for recording data and recording data into the allocated area.
    Type: Application
    Filed: October 28, 2003
    Publication date: May 11, 2006
    Inventors: Hideaki Mita, Yoshiho Gotoh, Yoshihisa Fukushima, Tatushi Bannai
  • Publication number: 20060093336
    Abstract: The present invention relates to a method for recording an AV file using an information recording disk in which data is recorded/reproduced by sectors. The recording method includes the steps of determining whether or not input data is AV data; detecting a defective sector existing in an assigned data recording area; when the input data is AV data while a defective sector is detected in the data recording area, allocating a defective extent including the defective sector; recording AV data in continuous sectors while skipping the defective extent; and allocating an area of continuous sectors where on the AV data is recorded as one AV extent.
    Type: Application
    Filed: December 12, 2005
    Publication date: May 4, 2006
    Inventors: Yoshiho Gotoh, Hiroshi Ueda, Yoshihisa Fukushima
  • Patent number: 7039297
    Abstract: The present invention relates to a method for recording an AV file using an information recording disk in which data is recorded/reproduced by sectors. The recording method includes the steps of: determining whether or not input data is AV data; detecting a defective sector existing in an assigned data recording area; when the input data is AV data while a defective sector is detected in the data recording area, allocating a defective extent including the defective sector; recording AV data in continuous sectors while skipping the defective extent; and allocating an area of continuous sectors where only the AV data is recorded as one AV extent.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: May 2, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshiho Gotoh, Hiroshi Ueda, Yoshihisa Fukushima
  • Patent number: 7027373
    Abstract: An information recording medium comprises a user area, and a spare area including a replacement area, wherein the replacement area may be used instead of a defective area in the user area. The user area and the spare area include a plurality of sectors. Each of the plurality of sectors includes a user data area for recording user data, and an attribute data area for recording defect replacement allowance attribute data. The defect replacement allowance attribute data indicates whether recording of the user data has been executed in a state that the execution of a defect replacement process is allowed. In the defect replacement process, the defective area in the user area is replaced with the replacement area in the spare area.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: April 11, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroshi Ueda, Motoshi Ito, Kenji Takauchi, Yoshihisa Fukushima, Shinji Sasaki
  • Patent number: 7024103
    Abstract: An information recording medium for recording a real-time file containing real-time data in such a manner that the real-time data is continuously reproducible by a playback reference model, the real-time data including at least one of video data and audio data. The playback reference model includes: a pickup for reading the real-time data from the information recording medium; a buffer memory for temporarily storing the real-time data read by the pickup; and a decoder module for reading the real-time data from the buffer memory for processing. The information recording medium includes a volume space for at least recording in sectors a file containing data and file management information for managing the file. The real-time data is recorded in at least two real-time extents each of which is allocated in logically contiguous sectors within the volume space. An (i+1)th real-time extent among the at least two real-time extents is positioned at a position satisfying a real-time reproduction condition.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: April 4, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshiho Gotoh, Hiroshi Ueda, Miyuki Sasaki, Yoshihisa Fukushima
  • Patent number: 7024534
    Abstract: According to a recording method for a conventional rewritable disc, the latest data is recorded by rewriting data in an identical area. In the case of a disc of which the number of times of data rewrite is limited, this causes a problem that a defect block is easily generated. The present invention has an objective of providing an information recording medium, an information recording and reproduction method, and an information recording and reproduction system apparatus, by which data is recorded sequentially from an unallocated area after an entry sector number, and data recording is sequentially repeated from an inner portion to an outer portion.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: April 4, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Miyuki Sasaki, Yoshiho Gotoh, Yoshihisa Fukushima
  • Patent number: 7016597
    Abstract: An information recording medium for recording a real-time file containing real-time data in such a manner that the real-time data is continuously reproducible by a playback reference model, the real-time data including at least one of video data and audio data. The playback reference model includes: a pickup for reading the real-time data from the information recording medium; a buffer memory for temporarily storing the real-time data read by the pickup; and a decoder module for reading the real-time data from the buffer memory for processing. The information recording medium includes a volume space for at least recording in sectors a file containing data and file management information for managing the file. The real-time data is recorded in at least two real-time extents each of which is allocated in logically contiguous sectors within the volume space. An (i+1)th real-time extent among the at least two real-time extents is positioned at a position satisfying a real-time reproduction condition.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: March 21, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshiho Gotoh, Hiroshi Ueda, Miyuki Sasaki, Yoshihisa Fukushima
  • Patent number: 7016276
    Abstract: An information recording medium including a plurality of sectors of the present invention includes: a first spare area including a spare sector for replacing a defective sector among the plurality of sectors; a defect management information area for managing the replacement of the defective sector by the spare sector; and a volume space in which user data can be recorded. The volume space is configured so that a second spare area including a spare sector for replacing a defective sector among the plurality of sectors can be additionally allocated. Location information indicating a location of the second spare area is recorded in the defect management information area.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: March 21, 2006
    Assignee: Matsushita Electric Industrial Co., Inc.
    Inventors: Yoshiho Gotoh, Motoshi Ito, Hiroshi Ueda, Yoshihisa Fukushima
  • Patent number: 6990289
    Abstract: The present invention relates to a method for recording an AV file using an information recording disk in which data is recorded/reproduced by sectors. The recording method includes the steps of: determining whether or not input data is AV data; detecting a defective sector existing in an assigned data recording area; when the input data is AV data while a defective sector is detected in the data recording area, allocating a defective extent including the defective sector; recording AV data in continuous sectors while skipping the defective extent; and allocating an area of continuous sectors where only the AV data is recorded as one AV extent.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: January 24, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshiho Gotoh, Hiroshi Ueda, Yoshihisa Fukushima
  • Patent number: 6985427
    Abstract: A multi-layered optical disk comprising a plurality of recording layers accumulated in the thickness direction wherein a light beam is focused on one of tracks of one of the layers thereby to record and reproduce data, the optical disk being characterized in that recording layers each have an identification section storing an address of the recording layer which the identification section belongs to.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: January 10, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Isao Satoh, Yoshihisa Fukushima, Yuji Takagi, Yasushi Azumatani, Hiroshi Hamasaka
  • Patent number: 6978084
    Abstract: The present invention relates to a method for recording an AV file using an information recording disk in which data is recorded/reproduced by sectors. The recording method includes the steps of: determining whether or not input data is AV data; detecting a defective sector existing in an assigned data recording area; when the input data is AV data while a defective sector is detected in the data recording area, allocating a defective extent including the defective sector; recording AV data in continuous sectors while skipping the defective extent; and allocating an area of continuous sectors where only the AV data is recorded as one AV extent.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: December 20, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshiho Gotoh, Hiroshi Ueda, Yoshihisa Fukushima
  • Publication number: 20050238333
    Abstract: An information recording disc has a burst cutting area (BCA) for recording control information for a reproducing apparatus by removing a reflective layer of the disc in a striped shape and a data recording area for recording user data. The burst cutting area includes at least one BCA control information area. The BCA control information area has an application identifier area for identifying applications of control data, a data length area for indicating data length of the control data, and an application specific data area for recording the control data. Also, an information reproducing drive reproduces data from the information recording disc.
    Type: Application
    Filed: June 20, 2005
    Publication date: October 27, 2005
    Inventors: Hiroshi Ueda, Yoshihisa Fukushima, Motoshi Ito, Shinji Sasaki
  • Patent number: 6958971
    Abstract: A multi-layered optical disk comprising a plurality of recording layers accumulated in the thickness direction wherein a light bean is focused on one of tracks of one of the layers thereby to record and reproduce data, the optical disk being characterized in that recording layers each have an identification section storing an address of the recording layer which the identification section belongs to.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: October 25, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Isao Satoh, Yoshihisa Fukushima, Yuji Takagi, Yasushi Azumatani, Hiroshi Hamasaka
  • Patent number: RE39163
    Abstract: In a recording and reproducing apparatus for a disc-shaped recording medium, and a defect substitution method for a disc-shaped recording medium (8), whether reproduction of recorded data is good is determined by sector unit and not by product code unit, defective sector discrimination is performed by sector unit, and only sectors determined defective are alternately recorded, when using a recording format in which data that is error detection and correction coded with a product code is segmented and recorded to a plurality of sectors.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: July 11, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yuji Takagi, Takahiro Nagai, Yoshihisa Fukushima, Shunji Ohara, Isao Satoh