公开(公告)号：DE69114790T2

公开(公告)日：1996-04-18

申请号：DE69114790

申请日：1991-08-16

Applicant: SONY CORP

Inventor： ASHIZAKI KOJI ,  YAMAMOTO MASANOBU ,  MIYAOKA SENRI ,  TAMADA SAKUYA

IPC: G02B5/30 ,  G02B26/10 ,  G02B27/01 ,  G02B27/22 ,  G02B30/25 ,  H04N9/31 ,  H04N13/00 ,  H04N13/04

公开(公告)号：DE69019570T2

公开(公告)日：1995-09-28

申请号：DE69019570

申请日：1990-03-12

Applicant: SONY CORP

Inventor： YAMAMOTO MASANOBU ,  ITOH KAZUMINE

IPC: G02B26/10 ,  B29C35/08 ,  B29C67/00 ,  B29K105/24 ,  G03C9/08 ,  B29C39/42

Abstract: A method of and apparatus (1) for producing a three-dimensional object are provided, in which a beam (18) from beam oscillating means (11) is irradiated on a liquid surface of a liquid photo-curable resin (4) to form a cured resin layer having a pattern corresponding to a shape of an exploded plane which results from exploding a desired three-dimensional object image by a certain direction, a liquid photo-curable resin is placed on the cured resin layer and a beam is again irradiated on a liquid surface of the liquid photo-curable resin layer thereby to sequentially laminated a cured resin layer onto the already-cured resin layer, so as to form a desired three-dimensional object (47). The method and apparatus are characterised by the use of configuration scanning in which a configuration line of the exploded plane is scanned by the beam irradiation based on a vector-scanning system and field scanning in which a whole surface of the exploded plane is scanned according to a raster-scanning system.

公开(公告)号：AU628885B2

公开(公告)日：1992-09-24

申请号：AU4554489

申请日：1989-11-24

Applicant: SONY CORP

Inventor： YAMAMOTO MASANOBU ,  KARSURAMOTO SHINJI ,  OGAWA HIROSHI

IPC: G11B7/0045 ,  G11B7/09 ,  G11B7/125 ,  G11B19/02 ,  H01S3/103 ,  G11B7/095

Abstract: The present invention is concerned with control and detection of a laser beam for an optical disc recording/reproducing apparatus in which the intensity of a return laser beam reflected by an optical recording medium of a recording laser beam used for forming pits (P) and recording data on the recording medium during the recording mode is detected and an error signal including focusing and tracking error signals of the recording laser beam is formed on the basis of a detection output of the intensity of the return laser beam within a predetermined time interval ( tau ) before the pit (P) starts to be formed by the recording laser beam on the recording medium to control the recording laser beam, and in which, when recording data on the optical recording medium having sub-data previously recorded thereon as pre-grooves with wobbling, these sub-data are detected on the basis of the detection output of the return laser beam within said predetermined time interval ( tau ) or within a predetermined time interval other than said predetermined time interval ( tau ).

公开(公告)号：FR2528215B1

公开(公告)日：1987-03-06

申请号：FR8309440

申请日：1983-06-07

Applicant: SONY CORP

Inventor： YAMAMOTO MASANOBU ,  OGAWA HIROSHI

IPC: B41M5/26 ,  G11B7/00 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/013 ,  G11B7/30 ,  G11B20/10 ,  G11B20/14 ,  G11B7/08 ,  G11B7/24

公开(公告)号：CH657707A5

公开(公告)日：1986-09-15

申请号：CH584282

申请日：1982-10-05

Applicant: SONY CORP

Inventor： YAMAMOTO MASANOBU ,  UMEZU NOBUHIKO

IPC: G02F1/11 ,  G02F1/33 ,  G06K15/12 ,  G11B7/00 ,  G11B7/125 ,  G11B7/128

公开(公告)号：GB2110022A

公开(公告)日：1983-06-08

申请号：GB8228558

申请日：1982-10-06

Applicant: SONY CORP

Inventor： YAMAMOTO MASANOBU ,  UMEZU NOBUHIKO

IPC: G02F1/11 ,  G02F1/33 ,  G06K15/12 ,  G11B7/00 ,  G11B7/125 ,  G11B7/128 ,  G02F1/00

Abstract: A light modulating apparatus for use with a recording apparatus for recording an information signal on a recording medium includes a light source and an acousto-optic modulator for modulating light emitted from the light source in response to a first electrical signal and thereby producing a modulated light signal for acting on the recording medium. Additionally, the apparatus includes an information signal source for providing an information signal, a high frequency oscillator for producing a carrier signal, a signal modulator for modulating the carrier signal by the information signal and providing therefrom the first electrical signal, and a photo-detector for detecting the modulated light signal and producing in response thereto a second electrical signal. The apparatus further comprises a peak-holding circuit for holding substantially a peak value of the second electrical signal, a comparator for comparing the peak value of the second electrical system with a reference signal and providing a corresponding error signal, and an amplitude modulator for controlling the amplitude of the carrier signal in accordance with the error signal.

公开(公告)号：DE3237415A1

公开(公告)日：1983-04-21

申请号：DE3237415

申请日：1982-10-08

Applicant: SONY CORP

Inventor： YAMAMOTO MASANOBU ,  UMEZU NOBUHIKO

IPC: G02F1/11 ,  G02F1/33 ,  G06K15/12 ,  G11B7/00 ,  G11B7/125 ,  G11B7/128

Abstract: A light modulating apparatus for use with a recording apparatus for recording an information signal on a recording medium includes a light source and an acousto-optic modulator for modulating light emitted from the light source in response to a first electrical signal and thereby producing a modulated light signal for acting on the recording medium. Additionally, the apparatus includes an information signal source for providing an information signal, a high frequency oscillator for producing a carrier signal, a signal modulator for modulating the carrier signal by the information signal and providing therefrom the first electrical signal, and a photo-detector for detecting the modulated light signal and producing in response thereto a second electrical signal. The apparatus further comprises a peak-holding circuit for holding substantially a peak value of the second electrical signal, a comparator for comparing the peak value of the second electrical system with a reference signal and providing a corresponding error signal, and an amplitude modulator for controlling the amplitude of the carrier signal in accordance with the error signal.

公开(公告)号：CA1130730A

公开(公告)日：1982-08-31

申请号：CA363996

申请日：1980-11-05

Applicant: SONY CORP

Inventor： FURUKWA SHUNSUKE ,  OGAWA HIROSHI ,  OKADA HITOSHI ,  YAMAMOTO MASANOBU

IPC: G01P3/42 ,  G11B19/24 ,  G11B19/28 ,  G11B3/00 ,  G11B25/04

Abstract: In a disc record reproducing apparatus for reproducing a disc on which a PCM (pulse code modulation) signal in the form of an RLLC (run length limited code) is recorded, a reproduced PCM signal therefrom is frequency-divided at a constant frequency dividing ratio, a frequency-divided PCM signal is compared with a reference frequency signal, and then the rotation of the disc record is controlled by a compared output.

公开(公告)号：DE60045204D1

公开(公告)日：2010-12-23

申请号：DE60045204

申请日：2000-06-21

Applicant: SONY DEUTSCHLAND GMBH ,  SONY CORP

Inventor： YAMAMOTO MASANOBU ,  SABI YUICHI ,  YASUDA AKIO

IPC: G11B7/24 ,  G03C1/73 ,  G11B7/00 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/125 ,  G11B7/128 ,  G11B7/135 ,  G11B7/1365 ,  G11B7/1387 ,  G11B7/244 ,  G11B7/25 ,  G11B7/257

公开(公告)号：DE60031364D1

公开(公告)日：2006-11-30

申请号：DE60031364

申请日：2000-07-19

Applicant: SONY CORP

Inventor： ARATANI KATSUHISA ,  KOBAYASHI SEIJI ,  YAMAMOTO MASANOBU

IPC: G11B7/24 ,  G11B7/00 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/007 ,  G11B20/00 ,  G11B23/28

Abstract: An optical recording medium having an information layer with a reflective film on which an information recording portion is formed by physical change of shape at least in one direction of 'thickness and track width, said reflective film having such an structure that additional recording can be performed by thermal recording, and that the reflectance of said reflective film changes in the range of 0.5Ä%Ü where R0 is reflectance of non-recording state and R1 is reflectance of recording state for reproducing beam. Such optical recording medium can be manufactured with low cost and additional recording can be done.