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    DISC RECORDING AND REPRODUCING APPARATUS
    51.
    发明专利
    DISC RECORDING AND REPRODUCING APPARATUS 未知

    公开(公告)号：HU212062B

    公开(公告)日：1996-01-29

    申请号：HU219791

    申请日：1991-06-28

    Applicant: SONY CORP

    Inventor： MAEDA YASUAKI ,  ARATAKI YUJI ,  YOSHIDA TADAO

    IPC: G11B7/013 ,  G11B7/09 ,  G11B19/04 ,  G11B20/10 ,  G11B20/22 ,  G11B27/00 ,  G11B27/30 ,  G11B27/32 ,  G11B27/34 ,  G11B27/36

    Abstract: During recording inputted data are sequentially written into a memory (14) at one transfer rate and are read out at a second, higher transfer rate for recording on a record medium (2). The reading of the memory (14) is such that data in a preset first amount are successively read from the memory (14) to always ensure a write space in the memory (14) which has a capacity which is higher than a predetermined second amount when the amount of the inputted data stored in the memory (14) exceeds the first amount. During playback, the recorded data are reproduced at a second transfer rate, which is higher than a first transfer rate required for outputting the reproduced data, and are written in a memory (22). The thus written data are successively read out of the memory (22) as reproduced output data at the first transfer rate. The writing of the reproduced data to the memory (22) is controlled so that a second amount of the reproduced data is written into the memory (22) and an amount of reproduced data, not less than a first amount, is always stored in the memory (22) when the amount of the reproduced data stored in the memory (22) becomes not higher than the first given amount.

    55.
    发明专利
    未知

    公开(公告)号：BR9102734A

    公开(公告)日：1992-02-04

    申请号：BR9102734

    申请日：1991-06-28

    Applicant: SONY CORP

    Inventor： MAEDA YASUAKI ,  ARATAKI YUJI ,  YOSHIDA TADAO

    IPC: G11B7/09 ,  G11B7/013 ,  G11B19/04 ,  G11B20/10 ,  G11B20/22 ,  G11B27/00 ,  G11B27/30 ,  G11B27/32 ,  G11B27/34 ,  G11B27/36 ,  G11B7/00

    Abstract: During recording inputted data are sequentially written into a memory (14) at one transfer rate and are read out at a second, higher transfer rate for recording on a record medium (2). The reading of the memory (14) is such that data in a preset first amount are successively read from the memory (14) to always ensure a write space in the memory (14) which has a capacity which is higher than a predetermined second amount when the amount of the inputted data stored in the memory (14) exceeds the first amount. During playback, the recorded data are reproduced at a second transfer rate, which is higher than a first transfer rate required for outputting the reproduced data, and are written in a memory (22). The thus written data are successively read out of the memory (22) as reproduced output data at the first transfer rate. The writing of the reproduced data to the memory (22) is controlled so that a second amount of the reproduced data is written into the memory (22) and an amount of reproduced data, not less than a first amount, is always stored in the memory (22) when the amount of the reproduced data stored in the memory (22) becomes not higher than the first given amount.

    56.
    发明专利
    未知

    公开(公告)号：NO912546L

    公开(公告)日：1991-12-30

    申请号：NO912546

    申请日：1991-06-28

    Applicant: SONY CORP

    Inventor： MAEDA YASUAKI ,  ARATAKI YUJI ,  YOSHIDA TADAO

    IPC: G11B7/013 ,  G11B7/09 ,  G11B19/04 ,  G11B20/10 ,  G11B20/22 ,  G11B27/00 ,  G11B27/30 ,  G11B27/32 ,  G11B27/34 ,  G11B27/36 ,  G11B20/18

    Abstract: During recording inputted data are sequentially written into a memory (14) at one transfer rate and are read out at a second, higher transfer rate for recording on a record medium (2). The reading of the memory (14) is such that data in a preset first amount are successively read from the memory (14) to always ensure a write space in the memory (14) which has a capacity which is higher than a predetermined second amount when the amount of the inputted data stored in the memory (14) exceeds the first amount. During playback, the recorded data are reproduced at a second transfer rate, which is higher than a first transfer rate required for outputting the reproduced data, and are written in a memory (22). The thus written data are successively read out of the memory (22) as reproduced output data at the first transfer rate. The writing of the reproduced data to the memory (22) is controlled so that a second amount of the reproduced data is written into the memory (22) and an amount of reproduced data, not less than a first amount, is always stored in the memory (22) when the amount of the reproduced data stored in the memory (22) becomes not higher than the first given amount.

    DISC RECORDING/REPRODUCING APPARATUS
    58.
    发明专利
    DISC RECORDING/REPRODUCING APPARATUS 未知

    公开(公告)号：CA2045052A1

    公开(公告)日：1991-12-30

    申请号：CA2045052

    申请日：1991-06-20

    Applicant: SONY CORP

    Inventor： MAEDA YASUAKI ,  ARATAKI YUJI ,  YOSHIDA TADAO

    IPC: G11B7/00 ,  G11B7/013 ,  G11B19/04 ,  G11B20/10 ,  G11B27/00 ,  G11B27/10 ,  G11B27/30 ,  G11B27/32 ,  G11B27/34 ,  G11B27/36

    Abstract: During recording the inputted data are sequentially written into a memory at one transfer rate and are read out at a second, higher transfer rate for recording on a record medium. The reading of the memory is such that data in a preset first amount are successively read from the memory to always ensure a write space in the memory which has a capacity which is higher than a predetermined second amount when the amount of the inputted data stored in the memory exceeds the first amount. During playback, the recorded data are reproduced at a second transfer rate, which is higher than a first transfer rate required for outputting the reproduced data, and are written in the memory. The thus written data are successively read out of the memory as reproduced output data at the first transfer rate. The writing of the reproduced data to the memory is controlled so that a second amount of the reproduced data is written into the memory and an amount of reproduced data, not less than a first amount, is always stored in the memory when the amount of the reproduced data stored in the memory becomes not higher than the first given amount.

    READ- ONLY OPTICAL RECORDING MEDIUM AND DISC CARTRIDGE
    59.
    发明专利
    READ- ONLY OPTICAL RECORDING MEDIUM AND DISC CARTRIDGE 未知

    公开(公告)号：MY138037A

    公开(公告)日：2009-04-30

    申请号：MYPI20051614

    申请日：2000-05-31

    Applicant: SONY CORP

    Inventor： NETSU NAOHIRO ,  AOKI YOSHITAKA ,  WATANABE TETSU ,  FUJIIE KAZUHIKO ,  MAEDA YASUAKI ,  KAERIYAMA TAKUYA

    IPC: G11B7/007 ,  G11B7/013 ,  G11B7/24 ,  G11B7/26 ,  G11B11/105 ,  G11B23/00 ,  G11B23/03

    Abstract: AN OPTICAL RECORDING MEDIUM IS PROVIDED WHICH HAS A SUBSTRATE (2) AND A SIGNAL RECORDING LAYER (21) PROVIDED ON THE SUBSTRATE (2) AND IN WHICH AN INFORMATION SIGNAL IS RECORDED IN THE FORM OF MICROSCOPIC PITS . A LIGHT BEAM IS FOCUSED ON THE SIGNAL RECORDING LAYER (21) AND SOME CHANGE OF THE LIGHT BEAM CARRIED BY A RETURN LIGHT FROM THE SIGNAL RECORDING LAYER (21) IS DETECTED TO READ THE INFORMATION SIGNAL RECORDED ON THE SIGNAL RECORDING LAYER. THE OPTICAL RECORDING MEDIUM HAS A DIAMETER OF 65 MM OR LESS AND A THICKNESS OF 0.4 TO 0.70 MM . AN INFORMATION SIGNAL RECORDING AREA EXTENDS OUTWARDLY FROM A RADIAL POSITION OF 12.5 MM OR LESS FROM THE CENTER OF THE MEDIUM . THE RATIO IN AREA BETWEEN THE INFORMATION SIGNAL RECORDING AREA AND NON-SIGNAL RECORDING AREA IS 3.4 OR MORE . THE STORAGE CAPACITY OF THIS MEDIUM IS 2 GIGABYTES OR MORE . THE OPTICAL RECORDING MEDIUM HAS FORMED AT THE CENTER THEREOF A CENTER HOLE (3) AROUND WHICH AN ANNULAR TABLE-ABUTMENT (4) CONVEXING TO ONE SIDE OF THE MEDIUM IS FORMED . A MAGNETIC-CLAMPING HUB (5) IS INSTALLED IN THE CENTER HOLE (3) AND THUS THE MEDIUM IS MAGNETICALLY CLAMPED TO A ROTATION DRIVING MECHANISM (11) OF AN OPTICAL RECORDING AND/OR REPRODUCING APPARATUS . THE COMPACTNESS AND HIGH DENSITY OF RECORDING OF THE OPTICAL RECORDING MEDIUM WILL CONTRIBUTE GREATLY TO A FURTHER COMPACT STRUCTURE OF A RECORDING AND/OR REPRODUCING APPARATUS IN WHICH THE MEDIUM IS TO BE USED .

    60.
    发明专利
    未知

    公开(公告)号：DE69433389T2

    公开(公告)日：2004-10-07

    申请号：DE69433389

    申请日：1994-04-21

    Applicant: SONY CORP

    Inventor： MAEDA YASUAKI

    IPC: G06F3/06 ,  G06F3/08 ,  G11B11/105 ,  G11B20/00 ,  G11B20/10 ,  G11B27/034 ,  G11B27/11 ,  G11B27/30 ,  G11B27/32 ,  C07D233/60

    Abstract: In a memory control device (12) for controlling write-in/read-out operation for memory means (13), a sector data storing area and an additive area are set in each of sector-based data storing areas in the memory means. A prescribed datum is stored in the additive area associated with the sector-based data stored in the sector data storing area. The access addresses for the additive area are generated on the basis of the sector count value when the sector data write-in or read-out is carried out in the memory means (13). The access addresses are calculated by the memory control device (12).

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