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    71.
    发明专利
    未知

    公开(公告)号：DE69417282D1

    公开(公告)日：1999-04-29

    申请号：DE69417282

    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

    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).

    72.
    发明专利
    未知

    公开(公告)号：DE69410865T2

    公开(公告)日：1998-10-08

    申请号：DE69410865

    申请日：1994-02-08

    Applicant: SONY CORP

    Inventor： TAKEZAWA MASAYUKI ,  MAEDA YASUAKI

    IPC: G06F3/06 ,  G11B7/09 ,  G11B11/105 ,  G11B19/00 ,  G11B19/12 ,  G11B20/00 ,  G11B20/10 ,  G11B27/031 ,  G11B27/10 ,  G11B27/11 ,  G11B27/32

    Abstract: A digital recording and/or reproducing apparatus using a recording medium (1), including a first interface circuit (32) for inputting and outputting digital audio data, a second interface circuit (35) for inputting and outputting general digital data excluding the digital audio data, an input connector (31) for inputting the digital audio data and the general digital data, an output connector (34) for outputting the digital audio data and the general digital data, and a recording and/or reproducing device (3,4) for recording and/or reproducing the digital audio data and the general digital data. In recording the digital audio data, the digital audio data input from the input connector (31) is supplied to the first interface circuit (32), and the digital audio data output from the first interface circuit (32) is supplied to the recording and/or reproducing device (3,4) and recorded onto the recording medium (1) by the recording and/or reproducing device (3,4). In reproducing the digital audio data, the digital audio data is reproduced from the recording medium (1) by the recording and/or reproducing device (3,4), and the digital audio data reproduced is supplied to the first interface circuit and output from the output connector (34). In recording the general digital data, the general digital data input from the input connector (31) is supplied to the second interface circuit (35), and the general digital data output from the second interface circuit (35) is supplied to the recording and/or reproducing device and recorded onto the recording medium (1) by the recording and/or reproducing device (3,4). In reproducing the general digital data, the general digital data is reproduced from the recording medium (1) by the recording and/or reproducing device (3,4), and the general digital data reproduced is supplied to the second interface circuit (35) and output from the output connector (34).

    73.
    发明专利
    未知

    公开(公告)号：DE69320748D1

    公开(公告)日：1998-10-08

    申请号：DE69320748

    申请日：1993-10-19

    Applicant: SONY CORP

    Inventor： MAEDA YASUAKI ,  NAGASHIMA HIDEKI

    IPC: G11B7/00 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/125 ,  G11B11/105 ,  G11B19/02 ,  G11B20/10 ,  G11B20/18 ,  G11B23/00 ,  G11B11/10

    Abstract: A recording apparatus for an optical recording medium (1) having a pregroove and address data includes a recording head apparatus (4-7) and a controller (11). The recording head apparatus (4-7) has an optical head device (4) and records data on the optical recording medium (1) along the pregroove. The optical head device (4) radiates a light beam having an intensity which is enough to record the data on the optical recording medium (1). The optical head device (4) includes a detector. The controller (11) controls the recording head apparatus and receives an output signal supplied from the detector. The optical head device (4) is controlled to move a recording start point from the previous recording start point by a predetermined value when the controller (11) detects the occurrence of a recording error according to the output signal from the detector and restarted to record the data from the moved recording start point on the optical recording medium (1).

    76.
    发明专利
    未知

    公开(公告)号：DE69114082T2

    公开(公告)日：1996-04-04

    申请号：DE69114082

    申请日：1991-08-21

    Applicant: SONY CORP

    Inventor： MAEDA YASUAKI ,  FUJIIE KAZUHIKO

    IPC: G11B20/12 ,  G11B20/18 ,  H03M13/27

    Abstract: An error correction encoding apparatus (30), for use for example in an optical disc recording and/or reproducing apparatus, comprises a first delay circuit (32) that applies different amounts of delay to respective data words constituting a data block to convert input data in a first array state into a second array state. A first error correction encoder (33) generates first check words from the data in the second array state. A second delay circuit (34) applies different amounts of delay to the data in the second array state and to the first check words to provide data and check words in a third array state. A second error correction encoder (35) generates second check words from the data and check words in the third array state. The amounts of delay applied by the first and second delay circuits (32, 34) are such that the array state of the data in the third array state is the same as the array state of the data in the first array state.

    77.
    发明专利
    未知

    公开(公告)号：DE69114082D1

    公开(公告)日：1995-11-30

    申请号：DE69114082

    申请日：1991-08-21

    Applicant: SONY CORP

    Inventor： MAEDA YASUAKI ,  FUJIIE KAZUHIKO

    IPC: G11B20/12 ,  G11B20/18 ,  H03M13/27

    Abstract: An error correction encoding apparatus (30), for use for example in an optical disc recording and/or reproducing apparatus, comprises a first delay circuit (32) that applies different amounts of delay to respective data words constituting a data block to convert input data in a first array state into a second array state. A first error correction encoder (33) generates first check words from the data in the second array state. A second delay circuit (34) applies different amounts of delay to the data in the second array state and to the first check words to provide data and check words in a third array state. A second error correction encoder (35) generates second check words from the data and check words in the third array state. The amounts of delay applied by the first and second delay circuits (32, 34) are such that the array state of the data in the third array state is the same as the array state of the data in the first array state.

    Apparatus for information recording and/or reproducing on or from an optical disc
    78.
    发明专利
    Apparatus for information recording and/or reproducing on or from an optical disc 未知

    公开(公告)号：SG30623G

    公开(公告)日：1995-09-01

    申请号：SG1995906582

    申请日：1988-05-24

    Applicant: SONY CORP

    Inventor： MAEDA YASUAKI

    IPC: G11B27/00 ,  G11B7/00 ,  G11B7/0045 ,  G11B7/007 ,  G11B7/013 ,  G11B7/30 ,  G11B11/105 ,  G11B19/02 ,  G11B27/034 ,  G11B27/036 ,  G11B27/10 ,  G11B27/11 ,  G11B27/32

    Abstract: An apparatus for recording and/or reproducing an optical disc having an optical disc (7) having an optical recording medium which permits information signals to be recorded thereon and a recording region divided into a first recording region (data region) for recording information signals and a second recording region (TOC) for recording information signals based on the information signals recorded in the first recording region, an optical pickup (8) for recording information signals on the optical disc (7) and reproducing information signals recorded on the optical disc (7) and a controller (18,15,16,17) for controlling the operation of the optical pickup (8) so as to re-record the information signal written in the second recording region corresponding to the final recording terminating point after an information signal has been recorded or rewritten in the first recording region by the optical pickup (8).

    79.
    发明专利
    未知

    公开(公告)号：PT98136A

    公开(公告)日：1993-10-29

    申请号：PT9813691

    申请日：1991-06-28

    Applicant: SONY CORP

    Inventor： MAEDA YASUAKI ,  ARATAKI JUJI ,  YOSHIDA TADAO

    IPC: G11B7/013 ,  G11B19/04 ,  G11B7/09 ,  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.

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