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71. 发明申请

WO2004036743A1 MEANS FOR LIMITING AN OUTPUT SIGNAL OF AN AMPLIFIER STAGE 审中-公开
标题翻译：限制放大器级输出信号的方法
公开(公告)号：WO2004036743A1
公开(公告)日：2004-04-29
申请号：PCT/IB2003/004237
申请日：2003-09-19
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , DE JONG, Gerben, W. , BREKELMANS, Johannes, H., A. , BERGERVOET, Jozef, R., M.
发明人： DE JONG, Gerben, W. , BREKELMANS, Johannes, H., A. , BERGERVOET, Jozef, R., M.
IPC分类号： H03G7/06
CPC分类号： H03F1/32 , G11B7/0053 , G11B7/1263 , G11B7/13 , H03F1/3211 , H03G7/06
摘要： An electronic circuit is provided which can autonomously handle an input current (I i ) having a relatively wide dynamic range without being overdriven. The electronic circuit comprises an amplifier stage (AMPST) having an input (IP) for receiving the input current (I i ) and an output (OP) for supplying an output current (I o ), such that, during operation, the strength of the output current (I o ) increases in response to an increasing strength of the input current (I i ) as long as the strength of the input current (I i ) has not exceeded an input reference level. The strength of the output current (I o ) is kept approximately constant when the strength of the input current (I i ) has exceeded the input reference level but has not exceeded a further input reference level. The strength of the output current (I o ) decreases in response to an increasing strength of the input current (I i ) when the strength of the input current (I i ) has exceeded the further input reference level. The amplifier stage (AMPST) may comprise a current mirror (CM) having an input which forms the input (IP), an output which forms the output (OP), and a common node (cn). The amplifier stage (AMPST) further comprises first control means (FCM) having an input connected to the input (EP), and an output connected to the common node (cn). First control means (FCM) controls a current (I 2 ) to the common node (cn) and a voltage (V cn ) at the common node (cn). The first control means (FCM) comprises limiting means (LMT) for limiting the current (I 2 ) when the value of the input current (I i ) has exceeded the input reference level. Then both the input and the output currents (I i and I o ) are limited. In order to avoid a saturation situation of a current source (I s ) which supplies a current (I) to the input (EP), the amplifier stage (AMPST) may comprise second control means (SCM) for supplying a compensation current (I CMP ) to the input (IP) when the input signal (I i ) has exceeded the input reference level. The current mirror (CM) comprises first (CP 1 ) and second (CP 2 ) current paths which form the core of the current mirror (CM), as is generally known. The decrease in response to an increasing strength of the input current (I i ) when the strength of the input current (I i ) has exceeded the further input reference level is implemented by a third current path (CP 3 ) which takes away current from the second current path (CP 2 ). Optionally, to avoid that the value of the output current (I o ) can become too low, a fourth current path (CP 4 ) may be implemented which applies current to the second current path (CP 2 ). The inventive electronic circuit may be advantageously applied in all electronic systems (like CD-apparatus) which need means to limit a maximum output signal.
摘要翻译：提供一种电子电路，其可以自主地处理具有相对宽的动态范围的输入电流（Ii）而不被过载驱动。电子电路包括具有用于接收输入电流（Ii）的输入（IP）和用于提供输出电流（Io）的输出（OP））的放大器级（AMPST），使得在操作期间输出的强度只要输入电流（Ii）的强度没有超过输入参考电平，电流（Io）响应于输入电流（Ii）的增加的强度而增加。当输入电流（Ii）的强度已经超过输入参考电平但没有超过另外的输入参考电平时，输出电流（Io）的强度保持近似恒定。当输入电流（Ii）的强度已经超过另外的输入参考电平时，输出电流（Io）的强度随着输入电流（Ii）的强度增加而减小。放大器级（AMPST）可以包括具有形成输入（IP）的输入，形成输出（OP）的输出和公共节点（cn））的电流镜（CM）。放大器级（AMPST）还包括具有连接到输入（EP）的输入的第一控制装置（FCM）和连接到公共节点（cn）的输出。第一控制装置（FCM）控制公共节点（cn）的电流（I2）和公共节点（cn）处的电压（Vcn）。当输入电流（Ii）的值超过输入参考电平时，第一控制装置（FCM）包括用于限制电流（I2）的限制装置（LMT）。那么输入和输出电流（Ii和Io）都受到限制。为了避免向输入（EP）提供电流（I）的电流源（Is）的饱和状态，放大器级（AMPST）可以包括用于提供补偿电流（ICMP）的第二控制装置（SCM）当输入信号（Ii）已经超过输入参考电平时，输入到输入（IP）。电流镜（CM）包括形成电流镜（CM）的核心的第一（CP1）和第二（CP2）电流路径，如众所周知的那样。当输入电流（Ii）的强度已经超过另外的输入参考电平时，对输入电流（Ii）的强度增加的响应的减小由通过从第二电流消除电流的第三电流路径（CP3）来实现路径（CP2）。可选地，为了避免输出电流（Io）的值变得太低，可以实现向第二电流路径（CP2）施加电流的第四电流路径（CP4）。本发明的电子电路可以有利地应用于需要限制最大输出信号的手段的所有电子系统（如CD装置）中。

72. 发明申请

WO2004025627A2 APPARATUS AND METHOD FOR SCANNING AN INFORMATION TRACK AND RECORD CARRIER 审中-公开
标题翻译：扫描信息跟踪和记录载体的装置和方法
公开(公告)号：WO2004025627A2
公开(公告)日：2004-03-25
申请号：PCT/IB2003/003761
申请日：2003-08-21
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , MARTENS, Hubert, C., F. , TIEKE, Benno , SPRUIT, Johannes, H., M.
发明人： MARTENS, Hubert, C., F. , TIEKE, Benno , SPRUIT, Johannes, H., M.
IPC分类号： G11B
CPC分类号： G11B7/1263 , G11B7/00456 , G11B7/00736 , G11B7/24038 , G11B19/02 , G11B19/12 , G11B19/127
摘要： In order to follow an information track (1) on an information carrier (2), a push-pull signal (PP) is generated. The polarity of the push-pull signal (PP) is different for different types of information carriers (2). Tracking means (8) should react differently to a push-pull signal (PP) with a positive polarity than to a push-pull signal (PP) with a negative polarity. The invention described is a method for scanning an information track (1) by determining the polarity of the push-pull signal (PP) first and putting the tracking means (8) in a first or second mode dependent on the polarity of the push-pull signal (PP). In the first mode the tracking means (8) react differently to the push-pull signal than in the second mode. The determination of the polarity of the push-pull signal (PP) can be done in several ways. The polarity can be stored on the information carrier (2), and the polarity determining means (9) read the polarity from the information carrier (2). Alternatively, the polarity determining means (9) can determine the polarity by directing the tracking means (8) to operate in the first and second mode subsequently, and check in which mode the scanning-location (6) was on-track.
摘要翻译：为了跟踪信息载体（2）上的信息轨道（1），产生推挽信号（PP）。对于不同类型的信息载体（2），推挽信号（PP）的极性是不同的。对于具有负极性的推挽信号（PP），跟踪装置（8）的反应与具有正极性的推挽信号（PP）的反应不同。所描述的本发明是一种通过首先确定推挽信号（PP）的极性并且将跟踪装置（8）置于第一或第二模式中来依赖于推挽信号的极性来扫描信息轨迹（1）拉信号（PP）。在第一模式中，追踪装置（8）对于推挽信号的反应与第二模式不同。推挽信号（PP）的极性的确定可以以几种方式完成。极性可以存储在信息载体（2）上，极性确定装置（9）从信息载体（2）读取极性。或者，极性确定装置（9）可以通过指示跟踪装置（8）随后以第一和第二模式操作来确定极性，并且检查扫描位置（6）在哪个模式中是轨道上的。

73. 发明申请

WO2004023461A1 光学的記憶装置及び光学的記録媒体の読出し方法审中-公开
标题翻译：光存储器件以及读取光记录介质的方法
公开(公告)号：WO2004023461A1
公开(公告)日：2004-03-18
申请号：PCT/JP2002/008775
申请日：2002-08-30
申请人：富士通株式会社 , 山下哲
发明人：山下哲
IPC分类号： G11B7/005
CPC分类号： G11B7/005 , G11B7/0079 , G11B7/1263 , G11B7/131 , G11B7/135 , G11B7/24079 , G11B11/10584 , G11B11/10597 , G11B20/22 , G11B20/24
摘要： An optical storage device comprises signal detection units (29 and 30) which detect as a ROM signal the light intensity modulated by a phase pit from a return light from an optical recording medium capable of simultaneously reproducing ROM-RAM and detect a RAM signal modulated by a recording film, a feedback circuit (31) which feeds back the ROM signal to a laser element drive current to reduce the crosstalk from the phase pit to the RAM signal, and a circuit (52) for performing adjustment so as to realize a predetermined crosstalk suppression effect irrespective of temperature changes of a laser element. Since feedback gain for reducing the crosstalk from the phase pit is changed by the laser temperature change, it is possible to set an RF feedback gain in which an MO signal is not degraded by the laser temperature change.
摘要翻译：光存储装置包括信号检测单元（29和30），该信号检测单元检测作为ROM信号的来自能够同时再现ROM-RAM的光记录介质的返回光由相位凹坑调制的光强度，并且检测由记录膜，将ROM信号反馈到激光元件驱动电流的反馈电路（31），以减少从相位凹坑到RAM信号的串扰;以及电路（52），用于执行调整以实现预定的串扰抑制效果与激光元件的温度变化无关。由于通过激光器温度变化来改变用于减小相位凹坑的串扰的反馈增益，因此可以设置其中MO信号不被激光温度变化降低的RF反馈增益。

74. 发明申请

WO2003065357A2 RECORD CARRIER, DEVICE AND METHOD FOR SCANNING THE RECORD CARRIER 审中-公开
标题翻译：记录载体，用于扫描记录载体的装置和方法
公开(公告)号：WO2003065357A2
公开(公告)日：2003-08-07
申请号：PCT/IB2003/000195
申请日：2003-01-24
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , SPRUIT, Johannes, H., M.
发明人： SPRUIT, Johannes, H., M.
IPC分类号： G11B7/00
CPC分类号： G11B7/1267 , G11B7/0045 , G11B7/00736 , G11B7/1263
摘要： A record carrier and a device for recording and/or reading the record carrier are described. The record carrier has a track for recording information represented by marks (8). The device has an optical head with a laser for generating a beam via a scanning spot on the track to a detector for detecting a read signal. A sensor (33) detects a sense signal (32) from the beam (24) and a control unit controls the laser power to a desired value. The device has a correction unit for generating a correction signal. This signal depends on local optical properties of the record carrier derived from the sense signal measured on at least one part of the track near the scanning spot (23). The device corrects the power control or other detected signals while using the correction signal. Furthermore, the record carrier can have prerecorded control parameters for setting the correction unit.
摘要翻译：描述用于记录和/或读取记录载体的记录载体和装置。记录载体具有用于记录由标记（8）表示的信息的轨道。该装置具有带有激光器的光学头，用于通过轨道上的扫描点产生光束到用于检测读取信号的检测器。传感器（33）从光束（24）检测感测信号（32），并且控制单元将激光功率控制到期望值。该装置具有用于产生校正信号的校正单元。该信号取决于从在扫描点（23）附近的轨道的至少一部分上测量的感测信号导出的记录载体的局部光学特性。该装置在使用校正信号时校正功率控制或其他检测信号。此外，记录载体可以具有用于设置校正单元的预先记录的控制参数。

75. 发明申请

WO02056307A1 RECORDING ON A MULTILAYER RECORD CARRIER USING FEED FORWARD POWER CONTROL 审中-公开
标题翻译：使用进给功率控制对多层记录载体进行记录
公开(公告)号：WO02056307A1
公开(公告)日：2002-07-18
申请号：PCT/IB2001/002536
申请日：2001-12-12
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/007 , G11B7/125 , G11B7/24 , G11B7/24038
CPC分类号： G11B7/24038 , G11B7/0045 , G11B7/007 , G11B7/126 , G11B7/1263 , G11B7/1267 , G11B2007/0013
摘要： The present invention relates to a multilayer record carrier, a recording apparatus and a method of recording on such a multilayer record carrier, wherein a difference in a transmission property of an upper information layer (6) is detected, and a corrected power value is used for recording on a lower information layer (8) at positions where the difference has been detected. The corrected power value is determined on the basis of the detected difference or a specification provided on the multilayer record carrier. Thereby, the recording power level or margin can thus be maintained during the recording on the lower information layer (8), that is, even in cases where the recording is effected through header areas (H) or gap portions (RO, RI) in the upper information layer (6).
摘要翻译：本发明涉及一种多层记录载体，记录装置和在这种多层记录载体上进行记录的方法，其中检测到上信息层（6）的传输特性的差异，并且使用校正的功率值用于在已经检测到差异的位置处在较低信息层（8）上记录。基于检测到的差异或设置在多层记录载体上的规格来确定校正后的功率值。因此，在下信息层（8）的记录期间，即使在记录是通过头部区域（H）或间隙部分（RO，RI）进行记录的情况下也可以保持记录功率电平或余量上层信息层（6）。

76. 发明申请

WO0239439A2 DEVICE AND METHOD FOR READING MULTILAYER OPTICAL DISK 审中-公开
标题翻译：用于读取多层光盘的装置和方法
公开(公告)号：WO0239439A2
公开(公告)日：2002-05-16
申请号：PCT/EP0112498
申请日：2001-10-29
申请人： THOMSON LICENSING SA , HOFMANN HOLGER , RICHTER HARTMUT
发明人： HOFMANN HOLGER , RICHTER HARTMUT
IPC分类号： G11B20/10 , G11B7/00 , G11B7/005 , G11B7/007 , G11B7/013 , G11B7/09 , G11B7/125 , G11B7/13 , G11B7/24 , G11B7/24038 , G11B7/24085 , G11B7/24088 , G11B20/00 , G11B23/28
CPC分类号： G11B7/1263 , G11B7/0052 , G11B7/00718 , G11B7/00736 , G11B7/00745 , G11B7/0903 , G11B7/13 , G11B7/24038 , G11B7/24085 , G11B7/24088 , G11B20/00086 , G11B20/00586 , G11B23/281 , G11B2007/0013
摘要： The invention refers to a device and a method for scanning an optical data carrier (1) by means of a main scanning beam (3) being reflected by the data carrier (1) and being detected by means of a photodetector (10), the data carrier (1) having first and second layers (11,12) to be scanned, the second layer (12) being scanned through the first layer (11), light passing the first layer (11) being shaded dependent on local properties of the first layer (11).An object of the invention is to propose a device having increased performance even for use with multi layer disks (1) having a layer (11) causing light fluctuations on a layer (12) to be scanned, as well as a respective method.According to the invention such device is provided with means (2,7,17) for keeping an output signal (D) of the photodetector (10) independent of variations of shading.
摘要翻译：本发明涉及一种借助被数据载体（1）反射并通过光检测器（10）检测的主扫描光束（3）来扫描光学数据载体（1）的设备和方法，数据载体（1）具有要被扫描的第一和第二层（11,12），第二层（12）被扫描穿过第一层（11），通过第一层（11）的光依赖于第一层（11）。本发明的目的是提出一种甚至用于多层盘（1）的性能提高的装置，所述多层盘具有使层（12）上的光波动被扫描的层（11）以及作为相应的方法。根据本发明，这种设备配备有用于保持光电探测器（10）的输出信号（D）独立于阴影变化的装置（2,7,17）。

77. 发明申请

WO01059777A1 LASER CONTROL DEVICE 审中-公开
标题翻译：激光控制装置
公开(公告)号：WO01059777A1
公开(公告)日：2001-08-16
申请号：PCT/JP2001/000920
申请日：2001-02-09
IPC分类号： G11B7/006 , G11B7/125
CPC分类号： G11B7/1263 , G11B7/0062
摘要： A laser control device capable of resolving a problem that a peak power and a bias power necessary for controlling a laser power cannot be accurately detected when a higher laser modulation speed is encountered, wherein a bias power current Ib is controlled by a computed value of an arithmetic circuit (3) based on a reproduction power current Ir control value of a servo amplifier (5) at a reproducing time immediately before recording, an erase power Pe has its power detected by a sample hold circuit (4) because of its comparatively long duration to control an erase power current Ie by the arithmetic circuit (3), and a peak power Pp is controlled by a computed value of the arithmetic circuit (3) based on the above erase power current Ie, whereby a bottom hold circuit and a peak hold circuit are eliminated and a laser control device not requiring a high-speed performance for a photodiode and a monitor circuit is implemented.
摘要翻译：一种激光控制装置，其能够解决当遇到更高的激光调制速度时不能精确地检测到用于控制激光功率所需的峰值功率和偏置功率的问题，其中偏置功率电流Ib由算术电路（3）基于紧接在记录之前的再现时刻的伺服放大器（5）的再现功率电流Ir控制值，擦除功率Pe由于其较长的长度而由采样保持电路（4）检测到其功率由运算电路（3）控制擦除功率电流Ie的持续时间，并且基于上述擦除功率电流Ie由运算电路（3）的计算值来控制峰值功率Pp，由此将底部保持电路和峰值保持电路被消除，并且实现了不需要光电二极管和监视器电路的高速性能的激光控制装置。

78. 发明申请

WO00019420A1 OPTICAL INFORMATION RECORDING MEDIUM, AND DEVICE AND METHOD FOR RECORDING TEST SIGNAL ON IT 审中-公开
标题翻译：光信息记录介质，以及用于记录测试信号的设备和方法
公开(公告)号：WO00019420A1
公开(公告)日：2000-04-06
申请号：PCT/JP1999/004411
申请日：1999-08-16
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/125
CPC分类号： G11B7/0045 , G11B7/0062 , G11B7/126 , G11B7/1263 , G11B7/1267
摘要： An optical information recording device for accurately recording information signals by suitable determining the recording conditions such as the recording power and the positions of the edges of recording pulses by test recording before actually recording the information signals. The test signals for optimizing the positions of the edges of recording pulses are supplied from an edge test signal generating circuit (4). The recording start points of the test signals are randomly shifted in the sectors of an optical information recording medium (1) by a recording start point shifting circuit (3) so as to suppress the bias of the edge intervals due to mark distortion caused by overwrite, and the test signals are test-recorded in the sectors. An average value of the edge intervals of the test signals reproduced from the sectors are found by a system control circuit (2), and the differences between the average value and the edge interval of each original test signal is found by the circuit (2), thus determining the corrections of the edge positions.
摘要翻译：一种光信息记录装置，用于通过在实际记录信息信号之前适当地确定记录功率和记录脉冲的边缘位置等记录条件，通过测试记录来准确地记录信息信号。用于优化记录脉冲的边缘的位置的测试信号从边缘测试信号发生电路（4）提供。测试信号的记录开始点由记录开始点移动电路（3）在光学信息记录介质（1）的扇区中被随机移位，以便抑制由于覆盖引起的标记失真导致的边缘间隔偏移，并且测试信号被测试记录在扇区中。通过系统控制电路（2）找出从扇区再现的测试信号的边缘间隔的平均值，并且通过电路（2）找到每个原始测试信号的平均值和边缘间隔之间的差异，，从而确定边缘位置的校正。

79. 发明申请

WO2017056678A1 情報記録材料、及び媒体とその記録装置审中-公开
标题翻译：信息记录材料，介质和记录装置
公开(公告)号：WO2017056678A1
公开(公告)日：2017-04-06
申请号：PCT/JP2016/072315
申请日：2016-07-29
申请人：ダイキン工業株式会社 , 国立研究開発法人産業技術総合研究所
发明人：佐藤　数行 , 田中　義人 , 鎌田　賢司
IPC分类号： G11B7/244 , G02B5/18 , G11B7/0065 , G11B7/1263 , G11B7/1267 , G11B7/24035 , G11B7/24097 , G11B7/26
CPC分类号： G02B5/18 , G11B7/0065 , G11B7/1263 , G11B7/1267 , G11B7/24035 , G11B7/24097 , G11B7/244 , G11B7/26
摘要：本発明の課題は、小さなパルスエネルギーの光によって、極めて微細な記録マークの形成が可能であり、安定した情報の記録又は再生が容易であり、かつ高速（短時間）での記録マークの形成な光情報記録媒体等を提供することにある　前記課題は、波長が３６５ｎｍ～６５０ｎｍの範囲にある特定の波長において、 (1)５～１００００cm/GWの範囲内の非線形吸収係数を有し、且つ (2)多層の回折格子が形成されている光情記録材料によって解決される。
摘要翻译：本发明解决了提供一种光信息记录介质等的问题，通过该光学信息记录介质等，可以使用低脉冲能量光形成非常精细的记录标记，稳定的信息易于记录或重放，并且形成记录标记高速（在短时间内）。在365-650nm范围内的特定波长处的光信息记录材料克服了这个问题：（1）具有5-10,000cm / GW范围内的非线性吸收系数; 和（2）中形成多层衍射光栅。

80. 发明申请

WO2015077815A1 METHOD AND SYSTEM FOR OPTICAL DATA STORAGE 审中-公开
标题翻译：用于光数据存储的方法和系统
公开(公告)号：WO2015077815A1
公开(公告)日：2015-06-04
申请号：PCT/AU2013/001378
申请日：2013-11-28
申请人： SWINBURNE UNIVERSITY OF TECHNOLOGY
发明人： GU, Min , LI, Xiangping , CAO, Yaoyu
IPC分类号： G11B7/125 , G11B7/0045
CPC分类号： G11B7/1263 , G11B7/0045 , G11B7/0065 , G11B7/128 , G11B7/13 , G11B7/24044 , G11B2007/00457
摘要： Methods and apparatus for recording and retrieval of optically readable data employ a recording medium (100) which comprises an optically active material (108) able to induce a change in properties of the medium in the presence of optical radiation having a first characteristic, such as a first optical frequency, and wherein the change in properties can be inhibited by optical radiation having a second characteristic, such as a second optical frequency. During recording, a region of the recording medium (100) is irradiated with a first beam (506) of optical radiation having the first characteristic, the beam having a sufficient intensity within a central portion of the irradiated region and being of sufficient duration to cause an optically induced change in properties of the recording medium. Simultaneously, the region of the recording medium (100) is irradiated with a second beam (508) of optical radiation having the second characteristic, the second beam having a local intensity minimum within the central portion of the irradiated region, and a local intensity maximum in at least one portion of the irradiated region adjacent to the central portion which is sufficient to inhibit the optically induced change in properties of the recording medium.A similar method is employed for retrieval, however the intensity of the first beam (506) is reduced to prevent changes in material properties within the recording medium (100).
摘要翻译：用于记录和检索光学可读数据的方法和装置采用一种记录介质（100），该记录介质包括光学活性材料（108），该光学活性材料（108）能够在存在具有第一特性的光辐射的情况下引起介质性质的改变，第一光频率，并且其中性质的变化可以通过具有第二特性（例如第二光频率）的光辐射来抑制。在记录期间，用具有第一特性的光辐射的第一光束（506）照射记录介质（100）的区域，所述光束在照射区域的中心部分内具有足够的强度，并且具有足够的持续时间以引起记录介质的光学特性变化。同时，用具有第二特性的光辐射的第二光束（508）照射记录介质（100）的区域，第二光束在照射区域的中心部分内具有局部强度最小值，并且局部强度最大值在与中心部分相邻的被照射区域的至少一部分中，其足以抑制光学引起的记录介质的性质变化。采用类似的方法进行检索，然而第一光束（506）的强度减小以防止记录介质（100）内的材料性质的变化。

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