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公开(公告)号：AT343203T
公开(公告)日：2006-11-15
申请号：AT00946419
申请日：2000-07-19
Applicant: SONY CORP
Inventor： ARATANI KATSUHISA , KOBAYASHI SEIJI , YAMAMOTO MASANOBU
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.
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公开(公告)号：DE60119423D1
公开(公告)日：2006-06-14
申请号：DE60119423
申请日：2001-03-22
Applicant: SONY CORP
Inventor： SABI YUICHI , WATANABE HIDETOSHI , YAMAMOTO MASANOBU
IPC: G11B7/24 , G11B7/0045 , G11B7/005 , G11B7/244 , G11B7/247
Abstract: To provide a high density optical recording medium, capable of realizing the complete compatibility with a phase change recording medium with respect to an optical pickup or a drive device, using a short wavelength light for achieving a high recording density. The present invention provides an optical recording medium configuration for directly reading out the change of the reflectance without using the phase modulation method. An optical recording medium according to the present invention is an optical recording medium having a recording film of a single layer or multiple layer structure on a substrate (1), wherein the recording film is mainly made of an organic substance material layer (2) for absorbing and decomposing a laser beam, and generating the refractive index change as well as the reflectance of the optical recording medium with respect to a reproduction laser beam of a 380 nm to 450 nm wavelength is 15% to 25% before the decomposition, and 0% to 10% after the decomposition.
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公开(公告)号：AT293831T
公开(公告)日：2005-05-15
申请号：AT00955043
申请日：2000-08-25
Applicant: SONY CORP
Inventor： SAKO YOICHIRO , YAMAMOTO MASANOBU , IHASHI TAKAO , INOKUCHI TATSUYA , KIJIMA KAORU
IPC: G06F17/30 , G06F21/00 , G06F21/10 , G06F21/16 , G06F21/44 , G06F21/62 , G06Q50/00 , G09B5/00 , G09C5/00 , G11B19/04 , G11B19/12 , G11B20/00 , G11B20/12 , G11B27/034 , G11B27/10 , G11B27/11 , G11B27/32 , H04N5/85 , H04N5/913 , H04N7/173 , G11B20/10 , G11B27/00 , G06F3/06 , G06F15/00 , G06F17/60
Abstract: An information transmitting method comprising the steps of: transmitting identification information of a recording medium from at least one terminal section for reproducing a duplicate recording medium duplicated from the recording medium having recorded thereon first digital data related to an encrypted work and second digital data including at least identification information proper to the medium, to a host section via a communication channel; authenticating the transmitted identification information by the host section; requesting the terminal section for accounting; and transmitting data related to a key for decrypting the encryption of the first digital data to the terminal section when the accounting is carried out.
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公开(公告)号：DE69532615D1
公开(公告)日：2004-04-01
申请号：DE69532615
申请日：1995-11-10
Applicant: SONY CORP
Inventor： OHOSHI TOSHIO , YAMAMOTO MASANOBU , KIYOMIYA TADASHI
Abstract: A light emitting device comprises: a first substrate (24) provided with luminescent materials; a second substrate (26) and spacers (10) for holding said first and second substrates opposite to each other at a predetermined space therebetween; wherein said spacers (10) are respectively formed on non-emission portions without said luminescent materials and each comprises a base layer (8) and a spacer body (9) formed thereon.
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公开(公告)号：AU771404B2
公开(公告)日：2004-03-18
申请号：AU5106900
申请日：2000-06-08
Applicant: SONY CORP
Inventor： SAKO YOICHIRO , IHASHI TAKAO , INOKUCHI TATSUYA , OGAWA HIROSHI , YAMAMOTO MASANOBU
Abstract: The present invention relates to an optical disc having a protection layer for protecting a recording layer located farther from a substrate, of a first recording layer and a second recording layer provided as being stacked on one side of the substrate, wherein the reflectance of one of the first and second recording layer is made higher than the reflectance of the other recording layer, and a reproducing device which uses this optical disc. The reproducing device casts a light beam emitted from a single light source onto the first recording layer or the second recording layer via a single objective lens, discriminates which of the first recording layer and the second recording layer the light beam emitted from the light source is cast on, on the basis of the result of detection of a reflected beam from the first recording layer or the second recording layer, moves the objective lens in a direction parallel to the optical axis ofthe objective lens on the basis of the result of discrimination, and condenses the light beam on the first recording layer or the second recording layer so as to carry out reproduction of information.
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Patent Agency Ranking116.发明专利
公开(公告)号：AU2003220791A1
公开(公告)日：2003-09-16
申请号：AU2003220791
申请日：2003-02-14
Applicant: SONY CORP , MITSUI CHEMICALS INC
Inventor： TAMADA SAKUYA , IWAMURA TAKASHI , SABI YUICHI , OYAMADA MITSUAKI , YAMAMOTO MASANOBU , KOIKE TADASHI , MISAWA TATSUMI , OGISO AKIRA , MARA RYOUSUKE , TOKUHIRO JUN , TSUKAHARA HISASHI
IPC: G11B7/0045 , G11B7/244 , G11B7/248 , G11B7/249 , B41M5/26 , G11B7/004 , G11B7/0055 , G11B7/24
Abstract: A rewritable optical information recording medium including a recording layer composed of an organic dye film is provided, in which recording and erasing information can be performed reversibly by laser light irradiation. A rewritable optical information recording medium including at least one organic dye film which is substantially made of only at least one kind of organic dye compounds as a recording film is provided. The recording and erasure of information are performed by a reversible physical change of the organic dye film substance caused by laser light irradiation. Specifically, data recording is performed by a physical change locally caused by the irradiation of recording laser light, data reproduction is performed by detecting change in intensity of returned light of reproducing laser light having less power than the recording laser light, and data erasure is performed by applying at least once continuous light or pulse light having laser power more than the reproducing laser light and less than the recording laser light. The physical change is a change in shape.
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公开(公告)号：AU6021300A
公开(公告)日：2001-02-13
申请号：AU6021300
申请日：2000-07-19
Applicant: SONY CORP
Inventor： ARATANI KATSUHISA , KOBAYASHI SEIJI , YAMAMOTO MASANOBU
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.
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公开(公告)号：AU5106900A
公开(公告)日：2001-01-02
申请号：AU5106900
申请日：2000-06-08
Applicant: SONY CORP
Inventor： SAKO YOICHIRO , IHASHI TAKAO , INOKUCHI TATSUYA , OGAWA HIROSHI , YAMAMOTO MASANOBU
Abstract: The present invention relates to an optical disc having a protection layer for protecting a recording layer located farther from a substrate, of a first recording layer and a second recording layer provided as being stacked on one side of the substrate, wherein the reflectance of one of the first and second recording layer is made higher than the reflectance of the other recording layer, and a reproducing device which uses this optical disc. The reproducing device casts a light beam emitted from a single light source onto the first recording layer or the second recording layer via a single objective lens, discriminates which of the first recording layer and the second recording layer the light beam emitted from the light source is cast on, on the basis of the result of detection of a reflected beam from the first recording layer or the second recording layer, moves the objective lens in a direction parallel to the optical axis ofthe objective lens on the basis of the result of discrimination, and condenses the light beam on the first recording layer or the second recording layer so as to carry out reproduction of information.
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119.发明专利
公开(公告)号：CA2312124A1
公开(公告)日：2000-12-23
申请号：CA2312124
申请日：2000-06-22
Applicant: SONY INT EUROPE GMBH , SONY CORP
Inventor： YASUDA AKIO , YAMAMOTO MASANOBU , SABI YUICHI
IPC: G03C1/73 , G11B7/00 , G11B7/004 , G11B7/0045 , G11B7/125 , G11B7/128 , G11B7/135 , G11B7/1365 , G11B7/1387 , G11B7/24 , G11B7/244 , G11B7/25 , G11B7/257
Abstract: An optical recording medium is capable of linear recording in a photon mode. An organic material changed in molecular orientation on light illumination to exhibit birefringence is used as a recording material. For example, a recording layer having, as a recording material, an organic material changed in molecular orientation caused by trans-cis rearrangement, is changed in birefringence with changes in the molecular orientation of the organic material. The recording system which utilizes the changes in the molecular orientation of the organic material has linear characteristics and gives outputs different depending on e.g., the degree or the angle of orientation, thus enabling multi-valued recording.
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公开(公告)号：CA2319423A1
公开(公告)日：2000-06-15
申请号：CA2319423
申请日：1999-12-07
Applicant: SONY CORP
Inventor： SAKO YOICHIRO , YAMAMOTO MASANOBU
IPC: G11B20/10 , G11B7/004 , G11B7/0045 , G11B7/005 , G11B7/007 , G11B7/013 , G11B7/09 , G11B7/26 , G11B20/00 , G11B7/24
Abstract: Twenty-bit audio data is separated into first data of high-order 16 bits and second data of low-order 4 bits. EFM-modulated data is created from the first data. A laser beam is turned on/off according to the logical level of channel data that is created by NRZI-modulating a serial data string. Consequently, the first data is recorded in the same way as in a compact disk. According to the second data, each pit is controlled to have displacement in a horizontal direction with respect to the track center, allowing a displaced pit to be formed. When data is thus recorded depending on the pit displacement, the high frequency component of a tracking error signal is changed during reproduction. Thus the second data can be extracted from the tracking error signal.
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