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    • 3. 发明授权
    • Hologram recording/reproducing system
    • 全息记录/再现系统
    • US07079469B2
    • 2006-07-18
    • US10516692
    • 2003-05-16
    • Yoshihisa ItohSatoru TanakaAkihiro TachibanaYoshihisa KubotaKazuo KurodaSatoshi Sugiura
    • Yoshihisa ItohSatoru TanakaAkihiro TachibanaYoshihisa KubotaKazuo KurodaSatoshi Sugiura
    • G11B7/00
    • G03H1/265G03H1/16G03H1/26G03H2260/54G11B7/0065
    • A hologram recording and reproducing system having compatibility has: a supporting unit for freely attachably supporting a recording medium including a photosensitive material; a signal light-generating unit for projecting a coherent light beam modulated according to a predetermined data into a recording medium and generating a diffraction grating by providing a three-dimensional light interference pattern in the recording medium; a detector unit for detecting and photoelectrically converting a diffracted light from the diffraction grating; and a demodulating unit for demodulating a predetermined data from an output from the detector unit. The detector unit has an intermediate data-generating unit for generating an intermediate data, and the demodulating unit has a conversion table in which the intermediate data and the predetermined data are uniquely associated, and demodulates the predetermined data by performing a computation based on a correlation in the conversion table.
    • 具有兼容性的全息图记录和再现系统具有:用于可自由连接地支撑包括感光材料的记录介质的支撑单元; 信号光产生单元,用于将根据预定数据调制的相干光束投射到记录介质中,并通过在记录介质中提供三维光干涉图案来产生衍射光栅; 用于检测和光电转换衍射光栅的衍射光的检测器单元; 以及解调单元,用于从检测器单元的输出解调预定数据。 检测器单元具有用于产生中间数据的中间数据生成单元,并且解调单元具有其中中间数据和预定数据唯一相关联的转换表,并且通过基于相关性执行计算来解调预定数据 在转换表中。
    • 6. 发明申请
    • Hologram system
    • 全息图系统
    • US20060164705A1
    • 2006-07-27
    • US10522679
    • 2003-05-16
    • Yoshihisa ItohSatoru TanakaAkihiro TachibanaYoshihisa KubotaKazuo KurodaSatoshi Sugiura
    • Yoshihisa ItohSatoru TanakaAkihiro TachibanaYoshihisa KubotaKazuo KurodaSatoshi Sugiura
    • G02B5/32
    • G06K7/10663G11B7/0065
    • A compatible hologram system has a supporting part for loadably supporting a recording medium made of a photosensitive material, a signal generating part for allowing a coherent beam modulated in response to predetermined data to enter the recording medium and providing a three-dimensional light interference pattern therewithin to produce a diffraction grating, and a data processing part for detecting reproduced data by diffracted light from the diffraction grating and demodulating the data to the predetermined data. The recording medium has a reference data area in which a reference diffraction grating corresponding to a three-dimensional light interference pattern of a coherent light beam modulated in response to reference data has been stored in advance, a sector data area in which sector data is recorded, and a user data area in which user data is recorded. The hologram system corrects the reproduced data in response to the reference data reproduced from the reference diffraction grating stored in the reference data area, the sector data reproduced from the sector area, and reference data provided within a reference memory of the data processing part, and demodulates the data to the predetermined data.
    • 兼容的全息图系统具有用于负载地支撑由感光材料制成的记录介质的支撑部件,用于允许响应于预定数据调制的相干光束进入记录介质并在其中提供三维光干涉图案的信号产生部件 以产生衍射光栅,以及数据处理部分,用于通过来自衍射光栅的衍射光检测再现数据,并将数据解调为预定数据。 记录介质具有参考数据区域,其中预先存储了对应于响应于参考数据调制的相干光束的三维光干涉图案的参考衍射光栅,其中记录了扇区数据的扇区数据区域 以及记录用户数据的用户数据区域。 全息图系统响应于从存储在参考数据区域中的参考衍射光栅再现的参考数据,从扇区区域再现的扇区数据和提供在数据处理部分的参考存储器内的参考数据,校正再现数据,以及 将数据解调为预定数据。