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    Information recording method for optical disk and information recording device for the optical disk
    51.
    发明专利
    Information recording method for optical disk and information recording device for the optical disk 有权

    公开(公告)号：JP2004054971A

    公开(公告)日：2004-02-19

    申请号：JP2002207270

    申请日：2002-07-16

    Applicant: Sony Corp ,  ソニー株式会社

    Inventor： MUNEKATA KAZUMI ,  OWA HIDEO ,  OGIWARA KOICHIRO

    IPC: G11B7/0045 ,  G11B7/085

    Abstract: PROBLEM TO BE SOLVED: To attain reduction of recording time by eliminating the useless recording operation of the information in an optical disk device having a plurality of beams.
    SOLUTION: The user information 54A, in which pointers are set by the execution of a pointer set program 58 according to a CPU 50, is separated by the pointers PF set for every phase and supplied to an encoder 38. In the encoder 38, the encode process based on the format of the optical disk is carried out for every block unit of the input information. Data after the process are separated by referring to the beam allocation pointers PB0, PB1, PB2 which are set for every beam. Encode data for every beam are inputted to a recording circuit 40 in parallel. When the recording signal is outputted for every beam in accordance with the inputted encode data, a laser array is emitted and the user information 54A is recorded on the disk.
    COPYRIGHT: (C)2004,JPO

    OPTICAL DISK RECORDING DEVICE AND METHOD THEREFOR
    52.
    发明专利
    OPTICAL DISK RECORDING DEVICE AND METHOD THEREFOR 失效

    公开(公告)号：JP2000020958A

    公开(公告)日：2000-01-21

    申请号：JP19059998

    申请日：1998-07-06

    Applicant: SONY CORP

    Inventor： HIDA MINORU ,  OWA HIDEO

    IPC: G11B7/00 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/125

    Abstract: PROBLEM TO BE SOLVED: To control laser power to be more optimal in real time. SOLUTION: A detection circuit 18 detects an asymmetric value of an RF signal and supplies this detection result to a semiconductor laser control circuit 19. Based on the detection result, the semiconductor laser control circuit 19 varies the recording power of semiconductor laser of an optical head 11 so that the asymmetric value is eliminated. The optical head 11 records the following block supplied via an MPEG encoder/decoder 14 and a recording circuit 17 on an optical disk 30, based on a setup of a laser beam by the semiconductor laser control circuit 19.

    OPTICAL DISK DEVICE
    53.
    发明专利
    OPTICAL DISK DEVICE 失效

    公开(公告)号：JPH10320827A

    公开(公告)日：1998-12-04

    申请号：JP15441498

    申请日：1998-06-03

    Applicant: SONY CORP

    Inventor： OWA HIDEO ,  KOBAYASHI SHOEI ,  CHIAKI SUSUMU ,  KATSURAMOTO SHINJI ,  WATANABE TOSHIO ,  MORI HIDENORI ,  YAMAMOTO MASANOBU ,  SAITO MAKI

    IPC: G11B7/24 ,  G11B7/00 ,  G11B7/004 ,  G11B7/135

    Abstract: PROBLEM TO BE SOLVED: To effectively utilize the peculiar functions of an optical disk device and to secure the storage capacity, in which operability that is comparable to a video tape recorder is obtained, by recording the desired user data by irradiating the laser beams having a wavelength less than a specific value by the optical system having the working distance less than a specific value and the numerical aperture more than a specific value. SOLUTION: Each focal distance and each interval are set so that the numerical aperture of an objective lens 17, which consists of a first lens 17A and a second lens 17B, becomes more than 0.7. An optical head secures an approximately 8 GB storage capacity by irradiating an optical disk 12 with the laser beams having the wavelength of less than 680 mm through the optical system having the numerical aperture of more than 0.7. At that time, a working distance WD is set to less than 560 μm and the mass-production of the heads are made possible. Thus, the video recording time and the operability comparable to a video tape recorder are obtained and the editing, which effectively uses the random access function of the optical disk device, is made possible.

    INFORMATION RECORDING MEDIUM AND ITS PRODUCTION
    54.
    发明专利
    INFORMATION RECORDING MEDIUM AND ITS PRODUCTION 失效

    公开(公告)号：JPH09198719A

    公开(公告)日：1997-07-31

    申请号：JP2600596

    申请日：1996-01-19

    Applicant: SONY CORP

    Inventor： MATSUDE MASATAKA ,  OWA HIDEO

    IPC: G11B23/50 ,  G11B7/24 ,  G11B7/26

    Abstract: PROBLEM TO BE SOLVED: To decrease the amt. of defective articles and to obtain a recording medium having high reliability by packing a water-soluble material into the second pits of the recording medium. SOLUTION: The many pits 2 transferred by the projecting parts of a stamper are formed on the recording surface of a substrate 1. Only the defective part 3 parts previously detected are exposed on this substrate 1. The surface exclusive of the defect pits 3 is shut off by a mask 5. The size of the holes 5a of the mask 5 is set smaller than the apertures of the pits 3. The sizes of the holes 5a are made smaller than the aperture of the pits 3. Next, the water-soluble transparent resin 6 is packed into the defect pits 3 if the water-soluble resin 6 is applied on the mask 5 over the entire part thereof from above.

    OPTICAL RECORDING MEDIUM AND RECORDING METHOD
    55.
    发明专利
    OPTICAL RECORDING MEDIUM AND RECORDING METHOD 失效

    公开(公告)号：JPH0883440A

    公开(公告)日：1996-03-26

    申请号：JP21854394

    申请日：1994-09-13

    Applicant: SONY CORP

    Inventor： OWA HIDEO ,  KOBAYASHI SEIJI

    IPC: G11B7/24 ,  G11B7/00 ,  G11B7/0045 ,  G11B7/0065 ,  G11B7/26 ,  G11B20/00 ,  G11B23/28 ,  G11B23/40

    Abstract: PURPOSE: To make it difficult for producing an imitation by copying a genuine optical recording medium by recording holograms for identifying the recording media in a region exclusive of an information recording region where information signals are recorded. CONSTITUTION: The holograms for identifying the contents of the recorded information and the recording medium indicating a person forming this information, etc., are recorded in the information recording region 14 of a compact disk 11. More specifically, the holograms 11 , 12 , 13 ... are recorded therein as shown by b. At this time, the holograms 11 , 12 , 13 are discontinuously recorded at, for example, intervals of 5mm in such a manner that tracking is not taken. As a result, the function of preventing copying is enhanced.

    RECORDABLE OPTICAL DISK RECORDING AND REPRODUCING DEVICE
    56.
    发明专利
    RECORDABLE OPTICAL DISK RECORDING AND REPRODUCING DEVICE 失效

    公开(公告)号：JPH02284589A

    公开(公告)日：1990-11-21

    申请号：JP10456189

    申请日：1989-04-26

    Applicant: SONY CORP

    Inventor： OWA HIDEO

    IPC: H04N5/93 ,  G11B7/00 ,  G11B7/005 ,  G11B20/06

    Abstract: PURPOSE:To obtain a reproduced output free from picture disturbance from the first by adding a DC component to the demodulation output of an FM demodulator of a reproducing system in an unrecorded area at the time of reproducing. CONSTITUTION:When an unrecorded area of an optical disk is irradiated with a laser beam at the time of reproducing, a switch 29 is closed because an RF signal is not obtained, and the FM carrier frequency which is outputted from an FM modulator 16 and is non-modulated or modulated only by a synchronizing signal is supplied to an FM demodulator 22. When the laser beam reaches a recorded area of the optical disk at a time t0 to obtain a reproduced RF signal, the switch 29 is turned off, and the reproduced RF signal inputted to the FM demodulator 22 is outputted as a demodulated video signal Sv. At such a time, a reproduced picture is immediately obtained because muting is released. This reproduced picture and a demodulation output SDC outputted before this picture are continuous.

    OPTICAL DISK RECORDER
    57.
    发明专利
    OPTICAL DISK RECORDER 失效

    公开(公告)号：JPH0294028A

    公开(公告)日：1990-04-04

    申请号：JP24425688

    申请日：1988-09-30

    Applicant: SONY CORP

    Inventor： OWA HIDEO

    IPC: G11B7/00 ,  G11B7/0045 ,  G11B7/125

    Abstract: PURPOSE:To reduce the effect of secondary distortion caused in the reproducing time by controlling the carrier frequency to be high at the time of moving an optical head to the outer circumferential side of a recording type optical disk. CONSTITUTION:The position of the optical head 20 is detected, and the frequency modulation carrier frequency fc is changed by this position information. That is, when an FM modulated video signal is recorded on the inner circumferential side of the optical disk D, its carrier frequency fc1 is specified as capable of making a video signal band reproducible enough. Then, when the FM modulated video signal is recorded on the outer circumferential side of the optical disk, its carrier frequency fc2 is controlled by a system controller 32 to be higher than the carrier frequency fc1. By this method, beat noise can be reduced at the time of reproducing and demodulating a track on the outer circumferential side.

    Traverse count method and apparatus of optical pickup
    60.
    发明专利
    Traverse count method and apparatus of optical pickup 审中-公开
    光学拾取的计数方法和装置

    公开(公告)号：JP2003346354A

    公开(公告)日：2003-12-05

    申请号：JP2002151509

    申请日：2002-05-24

    Applicant: Sony Corp ,  ソニー株式会社

    Inventor： MUNEKATA KAZUMI ,  OWA HIDEO ,  OGIWARA KOICHIRO

    IPC: G11B21/08 ,  G11B7/085 ,  G11B7/14

    Abstract: PROBLEM TO BE SOLVED: To increase write/read speed of information by performing traverse counting successfully for not only dark defects or finger print but also for bright defects or a wide range of defects.
    SOLUTION: Binarized signals are obtained from respective traverse signals of a plurality of beams, and at the same time, a logical sum of these binarized signals is calculated. Thereby, the effect due to the dark defects and the finger print are excluded. Furthermore, a cycle of the binarized signal is measured, and a history of measured signal cycle is stored. Then, the history of the stored signal cycle and a measured cycle are compared, and a traverse count value is modified. Consequently, the effect due to the bright defects and the wide range of defects are excluded.
    COPYRIGHT: (C)2004,JPO

    Abstract translation: 要解决的问题：通过不仅对暗缺陷或指纹进行遍历计数，而且对于明亮缺陷或大范围的缺陷进行遍历计数，以提高信息的写入/读取速度。 解决方案：从多个波束的相应横越信号中获得二值化信号，并且同时计算这些二值化信号的逻辑和。 因此，排除由于暗缺陷和指纹引起的影响。 此外，测量二值化信号的周期，并存储测量信号周期的历史。 然后，比较存储的信号周期的历史和测量周期，并修改横越计数值。 因此，排除了由于明亮缺陷和宽范围的缺陷引起的影响。 版权所有（C）2004，JPO

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