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    • 1. 发明申请
    • PROCESS FOR PRODUCING MULTI-LAYERED INFORMATION RECORDING MEDIUM, SIGNAL TRANSFER SUBSTRATE, AND PROCESS FOR PRODUCING THE SIGNAL TRANSFER SUBSTRATE
    • 用于生产多层信息记录介质,信号传输基板和用于产生信号传输基板的处理方法
    • US20100137506A1
    • 2010-06-03
    • US12530694
    • 2008-03-12
    • Morio TomiyamaHideki AikohYuuko TomekawaKen-ichi ShinotaniHaruki Okumura
    • Morio TomiyamaHideki AikohYuuko TomekawaKen-ichi ShinotaniHaruki Okumura
    • C08L83/06C08G77/20B29C45/14C08J7/04
    • G11B7/263G11B7/2533G11B2007/0013Y02P20/582
    • In a process for producing a multilayered information recording medium of the present invention, a process for forming a second signal substrate (110) serving as a resin layer provided between a first thin film layer (102), which is a first information recording layer, and a second thin film layer (108), which is a second information recording layer, includes the steps of: (I) applying a liquid resin (104) onto the first information recording layer; (II) placing, on the resin (104), a signal transfer substrate (105) having a signal surface with a shape of projections and depressions; (III) curing the resin (104) while the signal transfer substrate (105) is placed on the resin (104); and (IV) separating the signal transfer substrate (105) from the resin (104). The signal transfer substrate (105) is formed of an organic-inorganic hybrid material, such as a cured silicone resin obtained by curing a silicone resin composition containing a silsesquioxane compound, that contains a molecular-size inorganic part having a polyhedral structure constituted by —Si—O— bonds and an organic segment crosslinking a plurality of the inorganic parts with each other.
    • 在本发明的多层信息记录介质的制造方法中,形成作为第一信息记录层的第一薄膜层(102)之间的树脂层的第二信号基板(110)的形成工序, 和作为第二信息记录层的第二薄膜层(108)包括以下步骤:(I)将液体树脂(104)施加到第一信息记录层上; (II)在树脂(104)上放置具有凹凸形状的信号表面的信号转移基板(105); (III)固化树脂(104),同时将信号转移基板(105)放置在树脂(104)上; 和(IV)将信号转移衬底(105)与树脂(104)分离。 信号转移基板(105)由有机 - 无机混合材料形成,例如通过固化含有倍半硅氧烷化合物的硅氧烷树脂组合物而得到的固化的有机硅树脂,其含有具有多面体结构的分子大小的无机部分, Si-O-键和将多个无机部分彼此交联的有机链段。
    • 2. 发明授权
    • Information recording apparatus, information copying system, method for copying information, program and computer readable recording medium
    • 信息记录装置,信息复制系统,复制信息的方法,程序和计算机可读记录介质
    • US08306393B2
    • 2012-11-06
    • US11998260
    • 2007-11-29
    • Fumitomo YamasakiTakao HayashiHideki Aikoh
    • Fumitomo YamasakiTakao HayashiHideki Aikoh
    • H04N9/80H04N5/92H04N5/93H04N5/222H04N5/232H04N7/167H04L9/32H04L29/06G11B5/09
    • H04N1/00347G11B20/00086G11B20/10H04N1/00251H04N1/2307H04N1/2376H04N5/765H04N5/772H04N5/907H04N5/913H04N5/9201H04N2005/91328H04N2201/0084
    • A first information recorder comprises a limited number-of-times of copying information setting unit for setting information on the limited number-of-times of copying electronic data, a first limited number-of-times of copying information updating unit for reading out the electronic data from a first information recording medium containing electronic data set with limited number of times of copying information by the limited number-of-times of copying information setting unit and updating the limited number-of-times of copying information set with respect to the electronic data, and a first transmitter for transmitting electronic data whose limited number-of-times of copying information is updated by the first limited number of times of copying information updating unit. A second information recorder comprises a second receiver for receiving electronic data transmitted from the first transmitter, a second limited number-of-times of copying information updating unit for reading out the electronic data from a second information containing medium recording the electronic data and updating the limited number-of-times of copying information set with respect to the electronic data, and a second transmitter for transmitting electronic data whose limited number-of-times of copying information is updated by the second limited number-of-times of copying information updating unit.
    • 第一信息记录器包括有限数量的复制信息设置单元,用于设置关于复制电子数据的有限次数的信息,第一有限次数的复制信息更新单元,用于读出 来自第一信息记录介质的电子数据,该第一信息记录介质包含复制信息的有限次数的拷贝信息的有限次数的电子数据集,并且更新相对于该复制信息设置单元设置的复制信息的有限次数 电子数据,以及第一发送器,用于发送其复制信息的有限次数被复制信息更新单元的第一有限次数更新的电子数据。 第二信息记录器包括用于接收从第一发送器发送的电子数据的第二接收器,第二有限数量的复制信息更新单元,用于从包含记录电子数据的介质的第二信息读出电子数据,并更新 复制信息复制信息数量有限的复制信息次数有限,第二发送器用于发送复制信息的有限次数被复制信息更新的次数有限的第二发送器 单元。
    • 3. 发明授权
    • Objective lens, optical head and optical disc device
    • 物镜,光头和光盘装置
    • US08233371B2
    • 2012-07-31
    • US12159425
    • 2006-12-27
    • Fumitomo YamasakiKatsuhiko HayashiSadao MizunoHideki Aikoh
    • Fumitomo YamasakiKatsuhiko HayashiSadao MizunoHideki Aikoh
    • G11B7/00
    • G02B9/10G02B3/08G02B13/18G11B7/1275G11B7/1374G11B7/13922G11B2007/0006
    • Provides an objective lens, an optical head and an optical disc apparatus (drive) capable of compensating for various types of aberrations including wavelength changes for a plurality of types of optical discs including high density optical discs, DVDs and CDs with a good wavelength dispersion compensation ability and thus capable of providing good recording or reproduction characteristics.The objective lens according to the present invention includes a first lens and a second lens substantially in close contact with each other such that optical axes thereof match each other, and acts as a convex lens as a whole. Each lens includes a central portion including the optical axis and a peripheral portion located in a periphery of the central portion. The central portion of the first lens acts as a convex lens; and the central portion of the second lens acts as a concave lens. Where the refractive index of the first lens at d line (wavelength: 587.56 nm) is nd1, the Abbe constant of the first lens represented using the refractive indices at d line, F line (wavelength: 486.13 nm) and C line (wavelength: 656.27 nm) is νd1, the refractive index of the second lens at d line is nd2, and the Abbe constant of the second lens represented using the refractive indices at d line, F line and C line is νd2, the objective lens fulfills nd1>nd2 and νd1>νd2.
    • 提供能够补偿包括具有良好的波长色散补偿的高密度光盘,DVD和CD的多种类型的光盘的波长变化的各种像差的物镜,光头和光盘装置(驱动器) 因此能够提供良好的记录或再现特性。 根据本发明的物镜包括基本上彼此紧密接触的第一透镜和第二透镜,使得其光轴彼此匹配,并且作为整体起凸透镜的作用。 每个透镜包括包括光轴的中心部分和位于中心部分的周边的周边部分。 第一透镜的中心部分用作凸透镜; 并且第二透镜的中心部分用作凹透镜。 在d线(波长:587.56nm)处的第一透镜的折射率为nd1的情况下,使用在d线,F线(波长:486.13nm)和C线(波长:48nm)处的折射率表示的第一透镜的阿贝常数 656.27nm)是d1,d线的第二透镜的折射率为nd2,使用d线,F线和C线的折射率表示的第二透镜的阿贝常数为d2,目标 镜头满足nd1> nd2和&ngr; d1>&ngr; d2。
    • 4. 发明授权
    • Optical recording medium and reproducing device
    • 光记录介质和再现装置
    • US08156515B2
    • 2012-04-10
    • US12375648
    • 2007-07-27
    • Takayuki NagataJoji AnzaiHideki Aikoh
    • Takayuki NagataJoji AnzaiHideki Aikoh
    • G11B7/24
    • G11B7/24038
    • An optical recording medium is provided having a plurality of laminated recording layers, wherein the recording layers are formed such that a spacing between each pair of recording layers of all recording layer combinations selected from the plurality of recording layers is different from that of each other pair. Accordingly, a return of lights reflected by other layers to an optical head along the same optical path as reflected light from a readout layer during the reproduction can be avoided. Therefore, use of the optical recording medium, from which a good reproduction signal can be obtained, can suppress a deterioration of a servo signal and a reproduction signal of a reproducing device due to a variation of interference fringes on a light receiving element.
    • 提供具有多个层叠记录层的光记录介质,其中记录层形成为使得从多个记录层中选择的所有记录层组合的每对记录层之间的间隔与彼此对之间的间隔不同 。 因此,可以避免在再现期间由与读出层的反射光沿着相同的光路由其他层反射到光学头的光返回。 因此,由于光接收元件上的干涉条纹的变化,使用能从其获得良好的再现信号的光记录介质可以抑制伺服信号的劣化和再现装置的再现信号。
    • 5. 发明授权
    • Optical head
    • 光头
    • US08068403B2
    • 2011-11-29
    • US12090144
    • 2006-10-13
    • Takayuki NagataJoji AnzaiHideki AikohEishin MoriKousei SanoYoshiaki KommaAkihiro Arai
    • Takayuki NagataJoji AnzaiHideki AikohEishin MoriKousei SanoYoshiaki KommaAkihiro Arai
    • G11B7/00
    • G11B7/133G11B7/0908G11B7/1381G11B2007/0013
    • To provide an optical head to produce good servo and read signals by reducing the influence of interference by light reflected from a non-read layer of a multilayer optical disc.The head includes: a first optical system for converging light from a light source on a first or second storage layer; a second optical system for receiving and transmitting light reflected from the first layer and stray light reflected from the second layer when the light is converged on the first layer; a photodetector; and a calculator. The photosensitive areas of the photodetector output signals representing intensities of the light incident there through the second system. The reflected and stray light incident on the second system interfere with each other, and the first and second groups of areas are arranged so as to be equally affected by a variation in intensity caused by the interference. The calculator calculates the difference between sum of a first group of signals supplied from a first group of areas and that of a second group of signals supplied from a second group of areas, thereby generating a focus error signal.
    • 通过减少由多层光盘的非读取层反射的光的干扰的影响来提供光学头来产生良好的伺服和读取信号。 头部包括:第一光学系统,用于将来自光源的光聚焦在第一或第二存储层上; 第二光学系统,用于当所述光会聚在所述第一层上时,接收和发射从所述第一层反射的光和从所述第二层反射的杂散光; 光检测器; 和一个计算器。 光电检测器的光敏区域输出表示通过第二系统入射到那里的光的强度的信号。 入射在第二系统上的反射和杂散光彼此干涉,并且第一和第二组区域被布置成等同地受到由干涉引起的强度变化的影响。 计算器计算从第一组区域提供的第一组信号和从第二组区域提供的第二组信号的第一组信号的和之间的差,从而产生聚焦误差信号。
    • 7. 发明授权
    • Optical head, control method for optical head, and optical information processing apparatus
    • 光头,光头控制方法,光信息处理装置
    • US07869331B2
    • 2011-01-11
    • US12279061
    • 2007-02-13
    • Eishin MoriAkihiro AraiJoji AnzaiHideki Aikoh
    • Eishin MoriAkihiro AraiJoji AnzaiHideki Aikoh
    • G11B7/135
    • G11B7/131G11B7/0908G11B7/1353G11B2007/0013
    • An optical head includes a hologram which extracts, from a luminous flux of reflected light from an optical disk, at least a first luminous flux branch which does not include the optical axis of the luminous flux; and a photodetector which receives the reflected light from the optical disk and produces signal output, wherein the photodetector has light-receiving areas which receive the first luminous flux branch of reflected light from an optical information recording medium layer targeted for recording or playback out of the plurality of optical information recording medium layers of the optical disk, the light-receiving areas are placed in such a way that the signal output resulting from a light spot formed by the first luminous flux branch of the reflected light from the optical information recording medium layer targeted for recording or playback is practically the same between the first and second photodetection areas, and a boundary line of the light-receiving areas is located in such a position as not to include light spots formed by luminous fluxes of reflected light from the optical information recording medium layers other than the optical information recording medium layer targeted for recording or playback.
    • 光头包括从光盘的反射光的光束提取不包括光束的光轴的至少第一光束分支​​的全息图; 以及光接收器,其接收来自光盘的反射光并产生信号输出,其中光电检测器具有光接收区域,其接收来自用于记录或回放的光信息记录介质层的反射光的第一光束分支 光盘的多个光信息记录介质层,光接收区域被放置成使得由来自光信息记录介质层的反射光的由第一光束分支​​形成的光斑产生的信号输出 在第一和第二光电检测区域之间进行记录或重放的目标实际上相同,并且光接收区域的边界线位于不包括由来自光信息的反射光的光通量形成的光点的位置 记录介质层以外的光信息记录介质层 录音或播放。
    • 9. 发明申请
    • OPTICAL HEAD
    • 光学头
    • US20090257340A1
    • 2009-10-15
    • US12090144
    • 2006-10-13
    • Takayuki NagataJoji AnzaiHideki AikohEishin MoriKousei SanoYoshiaki KommaAkihiro Arai
    • Takayuki NagataJoji AnzaiHideki AikohEishin MoriKousei SanoYoshiaki KommaAkihiro Arai
    • G11B7/00
    • G11B7/133G11B7/0908G11B7/1381G11B2007/0013
    • To provide an optical head to produce good servo and read signals by reducing the influence of interference by light reflected from a non-read layer of a multilayer optical disc.The head includes: a first optical system for converging light from a light source on a first or second storage layer; a second optical system for receiving and transmitting light reflected from the first layer and stray light reflected from the second layer when the light is converged on the first layer; a photodetector; and a calculator. The photosensitive areas of the photodetector output signals representing intensities of the light incident there through the second system. The reflected and stray light incident on the second system interfere with each other, and the first and second groups of areas are arranged so as to be equally affected by a variation in intensity caused by the interference. The calculator calculates the difference between sum of a first group of signals supplied from a first group of areas and that of a second group of signals supplied from a second group of areas, thereby generating a focus error signal.
    • 通过减少由多层光盘的非读取层反射的光的干扰的影响来提供光学头来产生良好的伺服和读取信号。 头部包括:第一光学系统,用于将来自光源的光聚焦在第一或第二存储层上; 第二光学系统,用于当所述光会聚在所述第一层上时,接收和发射从所述第一层反射的光和从所述第二层反射的杂散光; 光检测器; 和一个计算器。 光电检测器的光敏区域输出表示通过第二系统入射到那里的光的强度的信号。 入射在第二系统上的反射和杂散光彼此干涉,并且第一和第二组区域被布置成等同地受到由干涉引起的强度变化的影响。 计算器计算从第一组区域提供的第一组信号和从第二组区域提供的第二组信号的第一组信号的和之间的差,从而产生聚焦误差信号。