REWRITABLE OPTICAL RECORD CARRIER
    2.
    发明公开
    REWRITABLE OPTICAL RECORD CARRIER 审中-公开
    可重复记录的光学载体

    公开(公告)号:EP1581941A2

    公开(公告)日:2005-10-05

    申请号:EP03778653.0

    申请日:2003-12-18

    IPC分类号: G11B7/24

    摘要: A rewritable optical record carrier comprising a first substrate carrying a first recording stack of layers, which recording stack comprises, a first dielectric layer, a recording layer comprising a phase-change recording material, a second dielectric layer, and a metal mirror layer. In order to achieve a maximum R*M said first dielectric layer has a thickness d 1 in the range of 20 nm to 50 nm, and said second dielectric layer has a thickness d 2 according to the relation 0.0225*d 2 2 -2.6572*d 2 +173.3 (nm) 1 2 2 -2.6572*d 2 +213.3 (nm) when the mirror layer comprises aluminum, or a thickness d 2 according to the relationship 0.0191*d 2 2 -2.0482*d 2 +149.6 (nm) 1 2 2 -2.0482*d 2 +189.6 (nm) when the mirror layer comprises silver.

    摘要翻译: 一种可重写光学记录载体,包括承载第一记录层堆叠的第一衬底,该记录堆叠包括第一介质层,包括相变记录材料的记录层,第二介质层和金属镜层。 为了实现结晶区域和非晶区域的反射之间的最大差异,所述第一介电层具有在20nm至50nm范围内的厚度d1,并且所述第二介电层具有根据所述关系的厚度d2 0.0225×d22-2.6572×d2 + 173.3(nm)

    PROCESSING IMAGES OF AT LEAST ONE LIVING BEING
    4.
    发明公开
    PROCESSING IMAGES OF AT LEAST ONE LIVING BEING 有权
    VERBBEITUNG VON BILDERN MINDESTENS EINES LEBEWESENS

    公开(公告)号:EP2404283A2

    公开(公告)日:2012-01-11

    申请号:EP10708623.3

    申请日:2010-03-01

    IPC分类号: G06T7/20 A61B5/024 G06T7/40

    摘要: A method of processing images of at least one living being, includes obtaining a sequence (19) of digital images taken at consecutive points in time. At least one measurement zone (26) comprising a plurality of image points is selected. For each measurement zone (26), a signal (28,30) representative of at least variations in a time-varying value of a combination of pixel values at at least a number of the image points for use in determining at least one of a presence and a frequency value of at least one peak in a spectrum of the signal (28,30) corresponding to a frequency of a periodic physiological phenomenon is obtained. The step (25) of selecting at least one measurement zone (26) includes analyzing information based on pixel data of a plurality of image parts in at least one of the images (19), each image part including at least one image point, and selecting each measurement zone (26) from contiguous parts determined to have similar characteristics.

    摘要翻译: 一种处理至少一个生物的图像的方法,包括获得在连续的时间点拍摄的数字图像的序列(19)。 选择包括多个图像点的至少一个测量区域(26)。 对于每个测量区域(26),表示至少多个图像点的组合的时间变化值的变化的信号(28,30),用于确定至少一个存在 并且获得与周期性生理现象的频率对应的信号(28,30)的频谱中的至少一个峰值的频率值。 选择至少一个测量区域(26)的步骤(25)包括基于至少一个图像(19)中的多个图像部分的像素数据分析信息,每个图像部分包括至少一个图像点,以及 从被确定为具有相似特征的连续部分中选择每个测量区(26)。

    HYBRID RECORDABLE OPTICAL RECORD CARRIER
    5.
    发明公开
    HYBRID RECORDABLE OPTICAL RECORD CARRIER 审中-公开
    混合可重写光学记录载体

    公开(公告)号:EP1652177A1

    公开(公告)日:2006-05-03

    申请号:EP04744610.9

    申请日:2004-07-19

    IPC分类号: G11B7/007 G11B7/24

    CPC分类号: G11B7/24038 G11B7/007

    摘要: The present invention relates to a recordable optical record carrier which can be used to make a back-up of the full content of a SA-CD disc. The proposed record, carrier comprises: a first transparent substrate layer (1), a first semi-transparent recordable information layer (2) including an organic dye material having a high data storage capacity, a second transparent substrate layer (4), a second recordable information layer (5) including an organic dye material havingl,a lower data storage capacity than said first information layer (2), and a cover layer (6).

    OPTICAL DATA STORAGE MEDIUM AND USE OF SUCH MEDIUM
    6.
    发明公开
    OPTICAL DATA STORAGE MEDIUM AND USE OF SUCH MEDIUM 审中-公开
    光学数据存储介质和这种介质的使用

    公开(公告)号:EP1512142A1

    公开(公告)日:2005-03-09

    申请号:EP03722950.7

    申请日:2003-05-14

    IPC分类号: G11B7/007

    摘要: A multi-stack optical data storage medium (20) for rewritable recording using a focused radiation beam (30), entering through an entrance face (25) is described. The medium (20) has a substrate (1a, 1b) and an L0 recording stack (2) and an L1 recording stack(3) both comprising a phase-change type L0 and L1 recording layer and the recording stacks are separated by a transparent spacer layer (4). The L0 recording stack (2) is present at a position closest to the entrance face (25) and has an optical transmission of TL0a and TL0c when the phase-change layer respectively is in the amorphous phase and in the crystalline phase. The medium (20) contains pre-recorded information modulated in at least one of: an embossed pregroove (21) in the substrate (1a, 1b), embossed pits in the substrate and recorded phase-change marks in at least one of the recording layers L0 and L1 (6, 11). The pre-recorded information contains a flag whether formatting of the L0 recording layer of the L0 recording stack (2) is needed depending on the transmission values TL0a and TL0c of the L0 recording stack (2). In this way it is achieved that the medium (20) has a good playability, recordability and random access behavior even when the L0 recording layer (2) has been partially recorded with information.

    OPTICAL DISC DRIVE AND METHOD FOR PREPROCESSING A DISC READ OUT SIGNAL
    8.
    发明公开
    OPTICAL DISC DRIVE AND METHOD FOR PREPROCESSING A DISC READ OUT SIGNAL 审中-公开
    光盘驱动器和方法进行预处理的板读取信号的

    公开(公告)号:EP2074621A2

    公开(公告)日:2009-07-01

    申请号:EP07826644.2

    申请日:2007-10-04

    IPC分类号: G11B20/10

    摘要: The present invention discloses an optical drive and a method for preprocessing a disc readout signal rk of an optical drive on the basis of a set of low-pass filters. The cutoff frequency fc of the filters wk, more particularly, can be set within the optical bandwidth, which improves the Viterbi detection performance in the case of high speed drive operations. Three types of filters are described, in which a Type I shaping filter performs best given a limited hardware cost for the bit detector. Compared to other more advanced noise- whitening techniques, it is only speed dependent and requires little prior knowledge of the channel and noise, thus cheap and easy to design. The invention can be applied in connection with optical disc drives, in particular when high frequency noises are dominant, for example, in the case of high speed operations.

    APPARATUS AND METHOD FOR REFERENCE LEVEL BASED WRITE STRATEGY OPTIMIZATION
    9.
    发明公开
    APPARATUS AND METHOD FOR REFERENCE LEVEL BASED WRITE STRATEGY OPTIMIZATION 审中-公开
    DEVICE AND METHOD FOR基准指数基于优化写入策略控制

    公开(公告)号:EP1941505A1

    公开(公告)日:2008-07-09

    申请号:EP06809578.5

    申请日:2006-10-12

    发明人: VLUTTERS, Ruud

    IPC分类号: G11B7/125

    CPC分类号: G11B7/00456

    摘要: The invention relates to an optical recording apparatus comprising means for optimizing a write strategy in a recording process. The apparatus comprising a radiation source for emitting a radiation beam in accordance with the write strategy, a read unit so as to provide a read signal, a bit detector for providing modulation bits corresponding to the read signal, a processing unit for grouping the modulation bits into modulation bit sequences and for correlating each modulation bit sequence of the read signal to a reference level, the reference level corresponding to the average amplitude of the read signal for a given modulation bit sequence. Average transition shifts of leading and/or trailing edges are determined based on the position of the reference levels, and at least one of the one or more write parameters in the write strategy is optimized in an optimization process based on the relative values of the reference levels. Optionally, the asymmetry of an optical effect may be determined from the reference levels so that the write strategy is optimized based on the asymmetry.

    A PHASE CHANGE MEDIUM ERASABLE AT LOW SPEED AND RECORDABLE AT HIGH SPEED AND A DRIVING DEVICE FOR SUCH A MEDIUM
    10.
    发明授权
    A PHASE CHANGE MEDIUM ERASABLE AT LOW SPEED AND RECORDABLE AT HIGH SPEED AND A DRIVING DEVICE FOR SUCH A MEDIUM 有权
    相变记录介质,其在低转速和高转速可擦除WRITABLE对于使用此介质的IS和设备

    公开(公告)号:EP1642269B1

    公开(公告)日:2008-06-11

    申请号:EP04737118.2

    申请日:2004-06-22

    IPC分类号: G11B7/006 G11B7/26

    摘要: A phase change medium, a device and a method for driving a phase change medium are proposed that allow writing at high speed and erasing at low speed. The proposed low-speed erasing option must be seen as a formatting option that can be applied to the whole medium (or to part of the medium) so as to put the medium (or part of the medium) back to a virgin state. With the invention, direct overwriting of data is not possible: the data have first to be erased at low speed before new data can be written on the medium at high speed. According to the invention, the medium is rotated at a linear velocity that depends on the selected operating mode, the linear velocity applied in the writing mode being much higher than said maximum crystalline velocity, and the linear velocity applied in said erasing mode being equal to or lower than said maximum crystalline velocity. Application: DVD+R high-speed.