公开(公告)号：JP2005050409A

公开(公告)日：2005-02-24

申请号：JP2003203977

申请日：2003-07-30

Applicant: Yamaha Corp ,  ヤマハ株式会社

Inventor： MORISHIMA MORIHITO

IPC: G11B23/38 ,  G11B7/0045 ,  G11B23/40

Abstract: PROBLEM TO BE SOLVED: To form an image to an optical disk with a simple configuration in a relatively short time.
SOLUTION: The optical disk system 100 records or reproduces data by irradiating the recording surface of a rotating optical disk 200 with a laser beam by an optical pickup 120. The optical disk system 100 is further equipped with an irradiation unit 170 which irradiates a heat sensitive layer disposed on the label surface on the side opposite of the recording surface of the optical disk 200 with appropriately parallel beams modulated by image data for regulating the density of the image to be formed, a stepping motor 178 for moving the irradiation unit 170 in the radial direction of the optical disk 200 and a power control circuit 164 which controls the intensity of the appropriately parallel beams by the irradiation unit 170 so as to be made approximately constant with respect to the linear velocity at the irradiation point.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：在相对短的时间内以简单的配置在光盘上形成图像。 解决方案：光盘系统100通过用光学拾取器120用激光束照射旋转光盘200的记录表面来记录或再现数据。光盘系统100还配备有照射单元170 热敏层，其设置在与光盘200的记录面相反侧的标签面上，具有用于调节要形成图像的浓度的图像数据调制的适当的平行光束;步进电机178，用于使照射单元 170，以及功率控制电路164，其通过照射单元170控制适当平行光束的强度，使其相对于照射点的线速度大致恒定。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2004326958A

公开(公告)日：2004-11-18

申请号：JP2003122086

申请日：2003-04-25

Applicant: Yamaha Corp ,  ヤマハ株式会社

Inventor： NAKASHIRO YUKIHISA ,  MORISHIMA MORIHITO

IPC: G11B7/0045 ,  G11B7/007 ,  G11B7/125 ,  G11B23/40

CPC classification number: G11B7/24094 ,  G11B7/0045 ,  G11B23/40

Abstract: PROBLEM TO BE SOLVED: To provide an optical disk recorder for preventing the data read errors or the formation of an illegal mark in the case of representing an image by making the reflectance different according to the mark shape. SOLUTION: This optical disk recorder is provided with a strategy circuit 26 for using either a first or second conversion rule for forming a different mark to convert the record data into a pulse string signal for regulating the emitting timing of a laser beam, a control part 20 for changing a conversion rule to be used for the strategy circuit 26 after the timing for forming the contour of an image has been passed and when timing arrives at which a synchronous pattern is attached to EFM data, at the time of forming the image on an optical disk 80, and a current selecting part 28 for selecting current according to the pulse string signal converted by the strategy circuit 26 to supply the current to a semiconductor laser 60. COPYRIGHT: (C)2005,JPO&NCIPI

公开(公告)号：JP2004234820A

公开(公告)日：2004-08-19

申请号：JP2004000445

申请日：2004-01-05

Applicant: Mitsubishi Chemicals Corp ,  Yamaha Corp ,  ヤマハ株式会社 ,  三菱化学株式会社

Inventor： MATSUISHI FUJIO ,  SHIMIZU KANJI ,  MORISHIMA MORIHITO

IPC: G11B7/24

Abstract: PROBLEM TO BE SOLVED: To provide an optical information recording medium on the label surface of which visible information can be recorded by irradiation of a low output laser beam using a laser device for recording/reproducing electronic information without exerting a thermal influence and the like to the electronic information recorded on the medium. SOLUTION: In the optical information recording medium 100 which has a structure wherein a substrate 101, an electronic information recording layer 102, a reflection layer 103, a protective layer 104, a visible information recording layer 105, and an over coat layer forming an outermost layer are successively layered, and wherein the surface roughness of the outermost layer on the label surface side is 1/2 as rough as the wavelength (λ) of the laser beam 108 or less, focusing of the low output laser beam is satisfactorily performed, and visible information is satisfactorily recorded in the visible information recording layer. COPYRIGHT: (C)2004,JPO&NCIPI

公开(公告)号：JP2004213852A

公开(公告)日：2004-07-29

申请号：JP2003122059

申请日：2003-04-25

Applicant: Yamaha Corp ,  ヤマハ株式会社

Inventor： MORISHIMA MORIHITO ,  USUI AKIRA ,  KONAGAI YUSUKE

IPC: G11B7/24 ,  G11B7/0045 ,  G11B7/007 ,  G11B23/40

CPC classification number: G11B7/24094 ,  G11B23/40

Abstract: PROBLEM TO BE SOLVED: To quickly form a visible image on an optical disk without making a circuit scale larger and wiring more complicated. SOLUTION: An optical disk recorder emits a laser beam to the optical disk to form a pit of a length designated by first record data (EFM modulation data, etc.,) to form visible images on the optical disk. Dummy data whose data format is the same as that of the first data is prepared in advance, and a portion of the dummy data is substituted for data for forming a visible image to generate second record data. The data for forming the visible image in the second record data are extracted, and a pit of a length designated by the extracted data for forming the visible image is formed to thereby prepare the visible image. COPYRIGHT: (C)2004,JPO&NCIPI

公开(公告)号：JP2004213811A

公开(公告)日：2004-07-29

申请号：JP2003001560

申请日：2003-01-07

Applicant: Mitsubishi Chemicals Corp ,  Yamaha Corp ,  ヤマハ株式会社 ,  三菱化学株式会社

Inventor： MATSUISHI FUJIO ,  SHIMIZU KANJI ,  MORISHIMA MORIHITO

IPC: G11B7/24

Abstract: PROBLEM TO BE SOLVED: To provide an optical information recording medium with which a laser device for recording/reproducing electronic information is used to be able to record visible information on a label face with laser irradiation of a low output without having thermal influence, etc., on electronic information recorded on a medium. SOLUTION: This optical information recording medium 100 has a structure where a substrate 101, and an electronic information recording layer 102, a first reflective layer 103 provided adjacently to a side opposite from a side on which a laser beam 107 of the electronic information recording layer 102 is made incident, a protective layer 104, a second reflective layer 111, a visible information recording layer 105 and an overcoat layer 106 forming an outer-most layer which are formed in order on the substrate 101 are sequentially laminated. COPYRIGHT: (C)2004,JPO&NCIPI

公开(公告)号：JP2004206845A

公开(公告)日：2004-07-22

申请号：JP2002377879

申请日：2002-12-26

Applicant: Yamaha Corp ,  ヤマハ株式会社

Inventor： MORISHIMA MORIHITO

IPC: G11B7/24 ,  B29D11/00 ,  G11B7/00 ,  G11B7/0037 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/007 ,  G11B7/085 ,  G11B7/125 ,  G11B7/26 ,  G11B19/12

CPC classification number: G11B19/12 ,  G11B7/0037 ,  G11B7/0908

Abstract: PROBLEM TO BE SOLVED: To directly detect whether the label surface of an optical disk 200 faces a pickup or not. SOLUTION: When a regular S curve appears in the waveform of a focal error signal Fe, which appears when an objective lens 114 swing up and down, an S curve discriminating part 164 discriminates that a recording surface faces a pickup 100 and, on the other hand, when the waveform Fe of the focal error signal Fe is distorted and also two large and small curves appear in the waveform Fe, the part 164 discriminates that the label surface faces the pickup 100. A signal indicating this discriminated result is supplied to a control part which controls respective parts of an optical disk device. COPYRIGHT: (C)2004,JPO&NCIPI

Abstract translation: 要解决的问题：直接检测光盘200的标签表面是否面向拾取。 解决方案：当物镜114上下摆动时出现的焦点误差信号Fe的波形中出现常规S曲线时，S曲线识别部分164鉴别记录表面面向拾取器100， 另一方面，当焦点误差信号Fe的波形Fe失真并且在波形Fe中出现两条大的和小的曲线时，部分164区分标签表面面向拾取器100.表示该辨别结果的信号是 提供给控制光盘装置的各部分的控制部。 版权所有（C）2004，JPO＆NCIPI

公开(公告)号：JP2004171605A

公开(公告)日：2004-06-17

申请号：JP2002332686

申请日：2002-11-15

Applicant: Yamaha Corp ,  ヤマハ株式会社

Inventor： MORISHIMA MORIHITO

IPC: G03H1/02 ,  G11B7/0045 ,  G11B7/0065 ,  G11B7/007 ,  G11B7/24

CPC classification number: G11B7/24094

Abstract: PROBLEM TO BE SOLVED: To easily perform an image drawing having high designing characteristics (having a hologram vision effect) to an optical disk. SOLUTION: Laser information showing an irradiation interval and an irradiation level of a laser beam with which an optical disk is to be irradiated is previously prepared. When a pit forming interval is designated and instruction for image drawing is given, the laser beam is controlled so as to have the irradiation interval and the irradiation level corresponding to the pit forming interval and shown by the laser information to form a pit in the optical disk. COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2004063030A

公开(公告)日：2004-02-26

申请号：JP2002222074

申请日：2002-07-30

Applicant: Yamaha Corp ,  ヤマハ株式会社

Inventor： MORISHIMA MORIHITO

IPC: G11B7/24 ,  G11B7/007

CPC classification number: G11B7/00736

Abstract: PROBLEM TO BE SOLVED: To prevent a focus servo control from being obstructed by an optical disk device when reading bar codes. SOLUTION: Bar codes 30 are provided within a movable range of an optical pickup out of planes of an optical disk, that is, a range in which laser irradiation can be performed by an optical disk device. Further, such coding is used that arranging bars continuously is prohibited as coding of data recorded as the bar code 30. COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2004039019A

公开(公告)日：2004-02-05

申请号：JP2002190829

申请日：2002-06-28

Applicant: Yamaha Corp ,  ヤマハ株式会社

Inventor： TSURUMI TERUHIKO ,  MORISHIMA MORIHITO

IPC: G11B7/0045 ,  G11B7/007

CPC classification number: G11B7/24094 ,  G11B7/0045

Abstract: PROBLEM TO BE SOLVED: To provide an optical disk recorder in which a visual image is formed regardless of the condition of data recording. SOLUTION: An optical pickup is provided to either record the data recording by illuminating an optical disk, on which a guiding groove having a thermal interference (thermal dicoloration) characteristic is formed in a spiral with a laser light beam along the groove and forming pits to express a data length, or to form a visible image by discoloring a portion of the disk. The illuminating position of the laser light beams is controlled so that the data recording is conducted from the inner peripheral side of the disk and the visual image forming is conducted from the outer peripheral side of the disk. COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2004039012A

公开(公告)日：2004-02-05

申请号：JP2002190634

申请日：2002-06-28

Applicant: Yamaha Corp ,  ヤマハ株式会社

Inventor： MORISHIMA MORIHITO

IPC: G11B7/0045 ,  G11B7/00 ,  G11B7/0037 ,  G11B7/09 ,  G11B23/30

CPC classification number: G11B7/0037

Abstract: PROBLEM TO BE SOLVED: To provide an optical disk recorder by which the image having the uniform density almost over the whole area of the optical disk is formed even in the state that the revolving speed of a stepping motor and a laser power are controlled to be constant.
SOLUTION: When the image having the uniform density almost over the whole area of the optical disk 200 is formed, the revolving speed of a spindle motor 130 is controlled to be constant by a servo circuit 138, meanwhile, the current value of a driving signal Li is controlled by an ALPC circuit 162 so that the laser power becomes constant. In such a case, the moving amount of an optical pickup 100 is made large at the inner peripheral side where the line width of the image is widened, by a main control part 170, while the moving amount of the optical pickup 100 is made smaller at the outer peripheral side where the line width is narrowed. Then, the instruction to move the optical pickup 100 in the moving amount decided based on the setting is given to a motor driver 142 by the main control part 170.
COPYRIGHT: (C)2004,JPO