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11.发明公开Magneto-optical recording system having medium with domainless control layer 失效Magneto-optisches Aufnahmesystem，dessenDatenträgereine Kontrollschicht ohne Bereiche aufweisst。
公开(公告)号：EP0333462A2
公开(公告)日：1989-09-20
申请号：EP89302563.5
申请日：1989-03-15
发明人： Birecki, Henryk
IPC分类号： G11B11/10
CPC分类号： G11B11/10591 , G11B11/10521
摘要： An information storage system records on a medium with a magneto-optical storage layer (30) and a ferrimagnetic control layer. A higher power write beam is used to impose an upward magnetic orientation and a lower power write beam is used to impose a downward magnetic orientation in the domain. The control layer (50) has an initial downward magnetic orientation, the magnetization of regions of the control layer (50) can be inverted to an upward orientation temporarily while the region is heated above a compensation temperature. The magnetization of the region is restored to its initial downward orientation upon restoration of ambient temperature since neither the higher power nor the lower power write beam heats the control layer to its Curie temperature. The distributed optical and thermal properties of the medium are selected so that, upon heating of the medium by dissipated laser energy, the peak temperature of the control layer (50) occurs after the peak temperature for the storage layer (30). When the higher power write beam is used, the domain cools through its Curie temperature before the corresponding region cools through its compensation temperatures so that an upward magnetic orientation is established in the domain. When the lower power write beam is used, the domain cools through its Curie temperature after the corresponding region cools through its compensation temperature so that a downward magnetic orientation is established in the domain.
摘要翻译： 信息存储系统在具有磁光存储层（30）和铁磁控制层的介质上记录。 较高的功率写入光束用于施加向上的磁性取向，并且较低的功率写入光束用于在该域中施加向下的磁性取向。 控制层（50）具有初始的向下磁性取向，当该区域被加热到补偿温度以上时，控制层（50）的区域的磁化可以暂时反转到向上的方向。 在环境温度恢复时，区域的磁化恢复到初始向下的方向，因为较高功率和较低功率写入光束都不会将控制层加热到其居里温度。 选择介质的分布式光学和热特性，使得在通过耗散的激光能量加热介质时，控制层（50）的峰值温度在存储层（30）的峰值温度之后发生。 当使用较高功率写入光束时，域在相应区域通过其补偿温度冷却之前通过其居里温度冷却，使得在该域中建立向上磁性取向。 当使用较低功率写入光束时，在相应区域通过其补偿温度冷却之后，域在其居里温度下冷却，从而在该域中建立向下的磁性取向。
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公开(公告)号：EP1302963A2
公开(公告)日：2003-04-16
申请号：EP02256503.0
申请日：2002-09-19
IPC分类号： H01J1/312
摘要： A cold electron emitter (200, 200-1, 200-2) may include a heavily a p-doped semiconductor (230), and dielectric layer (245) , and a metallic layer (240) (p-D-M structure). A modification of this structure includes a heavily n+ doped region (220) below the p region (230) (n+-p-D-M structure). These structures make it possible to combine high current emission with stable (durable) operation. The high current density is possible since under certain voltage drop across the dielectric layer (245) , effective negative electron affinity is realized for the quasi-equilibrium "cold" electrons accumulated in the depletion layer in the p-region (230) next to the dielectric layer (245). These electrons are generated as a result of the avalanche in the p-D-M structure or injection processes in the n+-p-D-M structure. These emitters are stable since they make use of relatively low extracting field in the vacuum region and are not affected by contamination and absorption from accelerated ions. In addition, the structures may be fabricated with current state-of-the-art technology.
摘要翻译： 冷电子发射器（200,200-1,200-2）可以包括大量p掺杂半导体（230）和电介质层（245）和金属层（240）（p-D-M结构）。 该结构的修改包括在p区（230）（n + -p-D-M结构）下面的重n +掺杂区（220）。 这些结构使得可以将高电流发射与稳定（耐用）操作相结合。 高电流密度是可能的，因为在电介质层（245）两端的某些电压降下，对于在邻近p区域（230）的耗尽层中累积的准平衡“冷”电子，实现了有效的负电子亲和力 电介质层（245）。 这些电子是由于p-D-M结构中的雪崩或n + -p-D-M结构中的注入过程而产生的。 这些发射体是稳定的，因为它们在真空区域中使用相对低的提取场，并且不受加速离子的污染和吸收的影响。 此外，结构可以用当前最先进的技术制造。
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公开(公告)号：EP1237174A1
公开(公告)日：2002-09-04
申请号：EP02251172.9
申请日：2002-02-20
CPC分类号： B82Y10/00 , G11B9/10 , G11B9/1409 , H01J3/02 , H01J2201/308
摘要： A semi-conductor electron source (102) includes a planar emission region (114) for generating an electron emission, and a focusing structure (118, 120) for focusing the electron emission into an electron beam. The emission region (114) may be a porous region located in a layer on an active substrate (104). The focusing structure may include an aperture (122) through which electron emission is focused.
摘要翻译： 半导体电子源（102）包括用于产生电子发射的平面发射区（114）和用于将电子发射聚焦成电子束的聚焦结构（118,120）。 发射区域（114）可以是位于有源衬底（104）上的层中的多孔区域。 聚焦结构可以包括电子发射聚焦的孔径（122）。
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公开(公告)号：EP0620471B1
公开(公告)日：1998-09-23
申请号：EP94302444.8
申请日：1994-04-07
IPC分类号： G02F1/1335
CPC分类号： G02B6/08 , G02F1/133524 , Y10S385/901
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公开(公告)号：EP0620471A1
公开(公告)日：1994-10-19
申请号：EP94302444.8
申请日：1994-04-07
IPC分类号： G02F1/1335
CPC分类号： G02B6/08 , G02F1/133524 , Y10S385/901
摘要： Significantly improving in the contrast ratio of a visual image display (100) using a liquid crystal layer (128) and a fiber optic faceplate (102) with tilted fibers (114). One preferred embodiment of the visual image display (100) includes a liquid crystal layer (128), a first polarizer (122) and an optical fiber faceplate (102) with many substantially parallel fibers (114). Each fiber (114) has an axis (116) which forms an oblique angle with the normal to the front surface (133) of the liquid crystal layer (128). All the oblique angles are substantially equal to a typical oblique angle (118). The typical oblique angle (118) is selected along the direction that substantially maximizes the contrast ratio of the display (100).
摘要翻译： 显示器包括具有许多平行光纤的液晶层，偏振器和光纤面板。 每个纤维具有与液晶层的正面垂直的倾斜角的轴线。 所有斜角均等于典型的斜角。 沿着使显示器的对比度最大化的方向选择典型的倾斜角。
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16.发明公开Electronic offset compensation of the continuous composite track error signal in optical recording 失效光学记录中连续复合轨迹误差信号的电子偏移补偿
公开(公告)号：EP0502243A3
公开(公告)日：1993-03-03
申请号：EP91116596.7
申请日：1991-09-27
IPC分类号： G11B7/09
CPC分类号： G11B7/08517 , G11B7/094
摘要： When doing multitrack seek or a single track jump, the midpoint between the maximum and the minimum of the tracking error signal is determined. A peak detector (31) detects the positive peak and the negative peak. These maximum and minimum values are stored in a sample and hold circuit (32). A summing circuit (33) determines the midpoint between the maximum and the minimum of the tracking error signal. An operational amplifier (35) provides a true error signal to the servo control system (14) that provides the appropriate servo operating point. The invention is based on the fact that even though there is no absolute reference signal indicating the appropriate on-track position, the tracking servo system (14) obtains the track error signal over the whole range of positions relative to track center when doing a multitrack seek or a single track jump. The appropriate servo operating point is the midpoint between the maximum and the minimum of the track error signal. This provides compensation for level shifts due to factors such as beam displacement, or detector mispositioning, changes in read/write beam profile, and disk tilt. The present invention solves the key disadvantage of the continuous groove tracking method by eliminating tracking offsets without adding additional information to the disk. It also avoids imposing overhead on the data channel. It compensates for effects of disk tilt, detector misalignment, detector and amplifier offsets, and beam decentration due to fine tracking.
摘要翻译： 当进行多轨寻道或单轨道跳跃时，确定跟踪误差信号的最大值和最小值之间的中点。 峰值检测器（31）检测正峰值和负峰值。 这些最大值和最小值存储在采样和保持电路（32）中。 求和电路（33）确定跟踪误差信号的最大值和最小值之间的中点。 运算放大器（35）向提供适当的伺服操作点的伺服控制系统（14）提供真实的误差信号。 本发明基于以下事实：即使没有表示合适的在轨位置的绝对参考信号，跟踪伺服系统（14）在进行多轨时也可以在相对于轨道中心的整个位置范围内获得轨道误差信号 寻找或单轨道跳。 适当的伺服操作点是轨道误差信号的最大值和最小值之间的中点。 这提供了由于诸如光束位移或检测器错位，读/写光束轮廓和磁盘倾斜变化等因素造成的电平偏移的补偿。 本发明通过消除跟踪偏移来解决连续凹槽跟踪方法的关键缺点，而不向盘添加附加信息。 它也避免了在数据通道上施加开销。 它补偿磁盘倾斜，检测器未对准，检测器和放大器偏移的影响，以及由于精细跟踪导致的波束偏移。
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17.发明公开
公开(公告)号：EP0333462A3
公开(公告)日：1991-05-08
申请号：EP89302563.5
申请日：1989-03-15
发明人： Birecki, Henryk
IPC分类号： G11B11/10
CPC分类号： G11B11/10591 , G11B11/10521
摘要： An information storage system records on a medium with a magneto-optical storage layer (30) and a ferrimagnetic control layer. A higher power write beam is used to impose an upward magnetic orientation and a lower power write beam is used to impose a downward magnetic orientation in the domain. The control layer (50) has an initial downward magnetic orientation, the magnetization of regions of the control layer (50) can be inverted to an upward orientation temporarily while the region is heated above a compensation temperature. The magnetization of the region is restored to its initial downward orientation upon restoration of ambient temperature since neither the higher power nor the lower power write beam heats the control layer to its Curie temperature. The distributed optical and thermal properties of the medium are selected so that, upon heating of the medium by dissipated laser energy, the peak temperature of the control layer (50) occurs after the peak temperature for the storage layer (30). When the higher power write beam is used, the domain cools through its Curie temperature before the corresponding region cools through its compensation temperatures so that an upward magnetic orientation is established in the domain. When the lower power write beam is used, the domain cools through its Curie temperature after the corresponding region cools through its compensation temperature so that a downward magnetic orientation is established in the domain.
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