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    11.
    发明专利
    未知

    公开(公告)号：DE60013218D1

    公开(公告)日：2004-09-30

    申请号：DE60013218

    申请日：2000-09-29

    Applicant: SONY CORP

    Inventor： SAKO YOICHIRO ,  KAWASHIMA TETSUJI ,  SHISHIDO YUKIO ,  TSUKATANI SHIGEKI ,  TOYAMA KATSUMI ,  INOKUCHI TATSUYA

    IPC: G11B27/32 ,  G11B20/12 ,  G11B27/10 ,  G11B27/30 ,  G11B15/087

    Abstract: A data record medium on which a digital signal has been recorded is disclosed, the digital signal being composed of main data and a sub code, the sub code having time information representing reproduction elapsed time, the sub code being recorded in association with the main data, wherein information that represents the reproduction elapsed time of the sub code is represented with a binary coded decimal number and address information in synchronization with the time information of the main data is represented with a binary number, the address information being contained in the main data.

    Optical disc and optical disc apparatus
    12.
    发明专利
    Optical disc and optical disc apparatus 未知

    公开(公告)号：AU777070B2

    公开(公告)日：2004-09-30

    申请号：AU7215300

    申请日：2000-12-11

    Applicant: SONY CORP

    Inventor： SHISHIDO YUKIO ,  KAWASHIMA TETSUJI

    IPC: G11B19/12 ,  G11B7/004 ,  G11B7/007 ,  G11B27/19 ,  G11B27/24 ,  G11B27/30

    Abstract: The present invention facilitates identification of whether or not an optical disc is a optical disc of which recording capacity is enlarged. A synchronization pattern of ATIP information embedded into guide grooves irradiated with a light spot is made to be different between a high density optical disc and a standard density optical disc of which recording capacity is not enlarged. Specifically, while the synchronization pattern of the standard density optical disc is preferably made into "3T+1T+1T+3T" (where "T" represents a minimum channel bit of a signal obtained by reading a positional information), the synchronization pattern of the high density optical disc is preferably made into "3T+3T+1T+1T" for example. By reading the ATIP information and recognizing the synchronization pattern thereof, it can be easily and quickly identified whether the optical disc has a standard density or a high density.

    15.
    发明专利
    未知

    公开(公告)号：ID27983A

    公开(公告)日：2001-05-03

    申请号：ID20000840

    申请日：2000-09-28

    Applicant: SONY CORP

    Inventor： SAKO YOICHIRO ,  KAWASHIMA TETSUJI ,  SHISHIDO YUKIO ,  TSUKATANI SHIGEKI ,  TOYAMA KAYSUMI ,  INOKUCHI TATSUYA

    IPC: G11B27/32 ,  G11B20/12 ,  G11B27/10 ,  G11B27/30

    Abstract: A data record medium on which a digital signal has been recorded is disclosed, the digital signal being composed of main data and a sub code, the sub code having time information representing reproduction elapsed time, the sub code being recorded in association with the main data, wherein information that represents the reproduction elapsed time of the sub code is represented with a binary coded decimal number and address information in synchronization with the time information of the main data is represented with a binary number, the address information being contained in the main data.

    16.
    发明专利
    未知

    公开(公告)号：NO20006248D0

    公开(公告)日：2000-12-08

    申请号：NO20006248

    申请日：2000-12-08

    Applicant: SONY CORP

    Inventor： SHISHIDO YUKIO ,  KAWASHIMA TETSUJI

    IPC: G11B19/12 ,  G11B7/004 ,  G11B7/007 ,  G11B27/19 ,  G11B27/24 ,  G11B27/30 ,  G11B

    Abstract: The present invention facilitates identification of whether or not an optical disc is a optical disc of which recording capacity is enlarged. A synchronization pattern of ATIP information embedded into guide grooves irradiated with a light spot is made to be different between a high density optical disc and a standard density optical disc of which recording capacity is not enlarged. Specifically, while the synchronization pattern of the standard density optical disc is preferably made into "3T+1T+1T+3T" (where "T" represents a minimum channel bit of a signal obtained by reading a positional information), the synchronization pattern of the high density optical disc is preferably made into "3T+3T+1T+1T" for example. By reading the ATIP information and recognizing the synchronization pattern thereof, it can be easily and quickly identified whether the optical disc has a standard density or a high density.

    18.
    发明专利
    未知

    公开(公告)号：DE68926252D1

    公开(公告)日：1996-05-15

    申请号：DE68926252

    申请日：1989-06-19

    Applicant: SONY CORP

    Inventor： WATANABE TETSU ,  KAWASHIMA TETSUJI ,  FUGITA GORO

    IPC: G11B11/10 ,  G11B11/105 ,  G11B19/14 ,  G11B33/14

    Abstract: In a magneto-optical recording apparatus, light spots are successively formed on a magneto-optical disc (2) at a timing of a predetermined reference clock signal (SCK), and record data are magnetically recorded onto the disc (2) by applying a predetermined modulation magnetic field (HM) of which the polarity is inverted depending on the record data in synchronism with the reference clock signal (SCK). At least one of the timing of irradiating a light beam (LA1) forming the light spots, the light volume of the beam or the irradiation time is controlled depending upon the temperature of the disc (2) and/or the scanning position of the light spot, in order to form a pit (P) at a correct position relative to the timing of the reference clock signal (SCK).

    SYSTEM AND METHOD FOR TRANSMITTING COMPRESSED DATA OR PRE-COMPRESSED DATA BASED ON A PRESET COMPRESSION RATIO
    19.
    发明专利
    SYSTEM AND METHOD FOR TRANSMITTING COMPRESSED DATA OR PRE-COMPRESSED DATA BASED ON A PRESET COMPRESSION RATIO 未知

    公开(公告)号：CA2163556A1

    公开(公告)日：1995-11-02

    申请号：CA2163556

    申请日：1995-04-21

    Applicant: SONY CORP

    Inventor： KAWASHIMA TETSUJI ,  INOKUCHI TATSUYA

    IPC: H03M7/30 ,  H03M7/48 ,  H04B1/66 ,  G11B20/10

    Abstract: A difference/compression ratio calculating means 76 in a data processing means 71 of a data transmitting apparatus according to the present invention calculates an actual difference and an actual compression ratio based on the data length of pre-compression data received from a data source 2 through pre-compression data receiving means 74 and the data length of compressed data outputted from a data compression circuit 67. If the actual difference is equal to or greater than a preset difference .alpha. and the actual compression ratio is equal to and greater than a preset compression ratio .beta., then the compressed data is transmitted to a data destination 3 through a transfer request data output means 79. Otherwise, the pre-compression data is transmitted to the data destination 3. With this arrangement, it is possible to prevent a phenomenon in which the size of compressed data which occupies a storage area in the data destination 3 is substantially the same as the size of uncompressed data which occupies the storage area, and also to avoid wasteful data expansion in the data destination 3.

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