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公开(公告)号：EP0786893A3
公开(公告)日：1999-03-31
申请号：EP96116702.0
申请日：1996-10-17
IPC分类号： H04N1/107
CPC分类号： G06K7/10881 , H04N1/107 , H04N1/1071 , H04N1/1077 , H04N1/193 , H04N2201/043
摘要： The present invention is directed to a hand-held scanning device (10) which contacts an object to be scanned (54) only at substantially colinear points, e.g., via a roller (30). This configuration allows the scanning device (10) to scan very close to the edge of an object to be scanned (54) while remaining fully supported by the object (54). In order to counteract detrimental effects caused by tilting of the scanning device (54) during a scan, the scan region (52) of the scanning device (10) is located close to the roller (30), a relatively high f-number lens (48) is used and a widened illumination area (64) is employed. The scanning device (10) is also configured to provide for easy grasping by a user and to allow the user to view the scan region (52) during a scan.
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2.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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3.发明公开Digital camera system and method for displaying images of a scene to a user through an optical viewfinder 审中-公开数字照相机系统和方法，用于通过一个光学取景器为用户显示的场景图像
公开(公告)号：EP1056280A2
公开(公告)日：2000-11-29
申请号：EP99126162.9
申请日：1999-12-30
发明人： Campbell, David K.
CPC分类号： H04N5/2251 , H04N5/23293
摘要： A digital camera system (70) is provided for displaying images of a scene to a user through an optical viewfinder (82). A lens (31), a conversion device (34), a storage device (36), and a display device (39) are included within a housing (84) of the digital camera system (70). The lens (31) receives light from a scene. The conversion device (34) receives light from the lens (31) and produces data signals based on the light received from the lens (31). The storage device (36) receives the data signals from the conversion device (34) and stores information based on the data signals. The display device (39) is coupled to the conversion device (34) and the storage device (36) and produces an image based on the data signals. Light from the lens (31) and the image produced by the display device (39) are directed through a beam splitter (58) toward an opening in the housing (84) such that a user can selectively view the image from the lens (31) and/or the image from the display device (39) by looking through the opening.
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4.发明公开Wedge prism assembly for optical information storage 失效WEDGE PRISM ASSEMBLY FOR OPTICAL INFORMATION STORAGE
公开(公告)号：EP0399650A3
公开(公告)日：1991-02-27
申请号：EP90304136.6
申请日：1990-04-18
IPC分类号： G11B7/135
CPC分类号： G11B7/1356
摘要： An optical assembly incorporating a wedge-shaped optically transparent prism (31), a 45 degree right isosceles triangular prism (33) which has tow thin film coated surfaces, a rhomboidal prism (43) attached to the triangular prism (33), a second, smaller 45 degree right isosceles triangular prism (44) attached to one end face (46) of the rhomboidal prism (43) and two planoconvex lenses (45,47) attached to the combination (38) of the rhomboidal (43) and second triangular (44) prisms is mounted within a housing (50). All of the optical components are cemented to the adjacent component utilizing a transparent optical cement to form an integral unit. Data (51) and servo (49) detector assemblies and a diode laser light source (37) are mounted on the external surfaces (59,55) of the housing (50) to form a stationary optical assembly (11) which provides the following functions: generates a collimated beam of light (21) whose power output may be modulated electronically to perform read, write and erase functions; generates an electrical data signal (34) derived from a portion of a returning light beam (21); and generates suitable electrical error signals for servomechanical control of radial and axial motion of a focuses light spot (27) on information storage media (19).
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5.发明公开Wedge prism assembly for optical information storage 失效Keilförmigeprismatische Anordnung zur optischen Informatonsspeicherung。
公开(公告)号：EP0399650A2
公开(公告)日：1990-11-28
申请号：EP90304136.6
申请日：1990-04-18
IPC分类号： G11B7/135
CPC分类号： G11B7/1356
摘要： An optical assembly incorporating a wedge-shaped optically transparent prism (31), a 45 degree right isosceles triangular prism (33) which has tow thin film coated surfaces, a rhomboidal prism (43) attached to the triangular prism (33), a second, smaller 45 degree right isosceles triangular prism (44) attached to one end face (46) of the rhomboidal prism (43) and two planoconvex lenses (45,47) attached to the combination (38) of the rhomboidal (43) and second triangular (44) prisms is mounted within a housing (50). All of the optical components are cemented to the adjacent component utilizing a transparent optical cement to form an integral unit. Data (51) and servo (49) detector assemblies and a diode laser light source (37) are mounted on the external surfaces (59,55) of the housing (50) to form a stationary optical assembly (11) which provides the following functions: generates a collimated beam of light (21) whose power output may be modulated electronically to perform read, write and erase functions; generates an electrical data signal (34) derived from a portion of a returning light beam (21); and generates suitable electrical error signals for servomechanical control of radial and axial motion of a focuses light spot (27) on information storage media (19).
摘要翻译： 包括楔形光学透明棱镜（31）的光学组件，具有丝束薄膜涂覆表面的45度右等腰三角棱镜（33），附接到三角棱镜（33）的菱形棱镜（43），第二 ，附接到菱形棱镜（43）的一个端面（46）的较小的45度右等腰三角棱镜（44）和附接到菱形（43）的组合（38）的两个平凸透镜（45,47）和第二 三角形（44）棱镜安装在壳体（50）内。 所有的光学部件都使用透明光学胶粘剂粘合到相邻的部件上以形成整体单元。 数据（51）和伺服（49）检测器组件和二极管激光光源（37）安装在壳体（50）的外表面（59,55）上以形成静止光学组件（11），其提供以下 功能：产生准直光束（21），其功率输出可以电子调制以执行读，写和擦除功能; 产生从返回光束（21）的一部分导出的电数据信号（34）; 并产生用于伺服机械控制聚焦光斑（27）在信息存储介质（19）上的径向和轴向运动的合适的电差错信号。
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公开(公告)号：EP0786893A2
公开(公告)日：1997-07-30
申请号：EP96116702.0
申请日：1996-10-17
IPC分类号： H04N1/107
CPC分类号： G06K7/10881 , H04N1/107 , H04N1/1071 , H04N1/1077 , H04N1/193 , H04N2201/043
摘要： The present invention is directed to a hand-held scanning device (10) which contacts an object to be scanned (54) only at substantially colinear points, e.g., via a roller (30). This configuration allows the scanning device (10) to scan very close to the edge of an object to be scanned (54) while remaining fully supported by the object (54). In order to counteract detrimental effects caused by tilting of the scanning device (54) during a scan, the scan region (52) of the scanning device (10) is located close to the roller (30), a relatively high f-number lens (48) is used and a widened illumination area (64) is employed.
The scanning device (10) is also configured to provide for easy grasping by a user and to allow the user to view the scan region (52) during a scan.摘要翻译： 本发明涉及一种手持扫描装置（10），其仅在基本上共线点例如经由辊（30）接触待扫描物体（54）。 该配置允许扫描装置（10）在被物体（54）完全支撑的同时非常靠近被扫描物体（54）的边缘进行扫描。 为了抵消在扫描期间由扫描装置（54）的倾斜引起的有害影响，扫描装置（10）的扫描区域（52）位于靠近辊（30）的位置，相对较高的f数透镜 （48），并且采用加宽的照明区域（64）。 扫描装置（10）还被配置为提供用户易于掌握并且允许用户在扫描期间观看扫描区域（52）。
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7.发明公开Scanning device with non-contact optical components 失效Abtastgerätmit kontaktlosen optischen Bauelementen
公开(公告)号：EP0785664A2
公开(公告)日：1997-07-23
申请号：EP96113584.5
申请日：1996-08-23
IPC分类号： H04N1/03
CPC分类号： H04N1/0305 , H04N1/03 , H04N1/107 , H04N2201/02458 , H04N2201/02464
摘要： A hand-held scanning device (10) is disclosed in which the scanning device housing window (152) is located such that it does not come into contact with the object being scanned (54) while a scan is being performed. This location of the window (152) eliminates window damage caused by contact with the object (54) being scanned. This location also results in the window (152) being located out of the focus area of the scanning device optical system (40). Accordingly, any defects occurring in the window (152) will be out of focus and, thus, less detrimental to acquired image quality. A light source lens (66) may be integrally formed in the same assembly (150) as the window (152) and this assembly (150) may provide support for the light source (62).
摘要翻译： 公开了一种手持扫描装置（10），其中扫描装置壳体窗口（152）被定位成使得它在进行扫描时不与被扫描物体（54）接触。 窗口（152）的该位置消除了与被扫描的物体（54）接触造成的窗口损坏。 该位置还导致窗口（152）位于扫描设备光学系统（40）的聚焦区域之外。 因此，在窗口（152）中发生的任何缺陷都将失焦，并因此对获取的图像质量的影响较小。 光源透镜（66）可以一体地形成在与窗（152）相同的组件（150）中，并且该组件（150）可以为光源（62）提供支撑。
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8.发明公开Electronic offset compensation of the continuous composite track error signal in optical recording 失效在电动机Aufzeichnung的Elektronische Offset-Kompensation des kontinueierlichen Kompositspurfolgefehlersignals。
公开(公告)号：EP0502243A2
公开(公告)日：1992-09-09
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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公开(公告)号：EP0785664B1
公开(公告)日：2004-02-04
申请号：EP96113584.5
申请日：1996-08-23
IPC分类号： H04N1/03
CPC分类号： H04N1/0305 , H04N1/03 , H04N1/107 , H04N2201/02458 , H04N2201/02464
摘要： A hand-held scanning device (10) is disclosed in which the scanning device housing window (152) is located such that it does not come into contact with the object being scanned (54) while a scan is being performed. This location of the window (152) eliminates window damage caused by contact with the object (54) being scanned. This location also results in the window (152) being located out of the focus area of the scanning device optical system (40). Accordingly, any defects occurring in the window (152) will be out of focus and, thus, less detrimental to acquired image quality. A light source lens (66) may be integrally formed in the same assembly (150) as the window (152) and this assembly (150) may provide support for the light source (62).
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10.发明公开Digital camera system and method for displaying images of a scene to a user through an optical viewfinder 审中-公开数字照相机系统和方法，用于通过一个光学取景器为用户显示的场景图像
公开(公告)号：EP1056280A3
公开(公告)日：2002-03-06
申请号：EP99126162.9
申请日：1999-12-30
发明人： Campbell, David K.
CPC分类号： H04N5/2251 , H04N5/23293
摘要： A digital camera system (70) is provided for displaying images of a scene to a user through an optical viewfinder (82). A lens (31), a conversion device (34), a storage device (36), and a display device (39) are included within a housing (84) of the digital camera system (70). The lens (31) receives light from a scene. The conversion device (34) receives light from the lens (31) and produces data signals based on the light received from the lens (31). The storage device (36) receives the data signals from the conversion device (34) and stores information based on the data signals. The display device (39) is coupled to the conversion device (34) and the storage device (36) and produces an image based on the data signals. Light from the lens (31) and the image produced by the display device (39) are directed through a beam splitter (58) toward an opening in the housing (84) such that a user can selectively view the image from the lens (31) and/or the image from the display device (39) by looking through the opening.
摘要翻译： 一种数字照相机系统（70）被设置用于通过到光学取景器（82）显示的场景的图像提供给用户。 透镜（31），转换装置（34），存储装置（36），和显示装置（39）包括在数字照相机系统（70）的壳体（84）内。 所述透镜（31）从场景接收光。 所述转换装置（34）从所述透镜（31）接收光，并产生基于从所述透镜（31）接收到的光数据信号。 的存储装置（36）接收从基于所述数据信号的转换装置（34）和存储信息的数据信号。 的显示装置（39）联接到所述转换装置（34）和所述存储装置（36），并基于该数据信号的图像。 从透镜（31）和由显示装置（39）所产生的图像光通过光束分离器（58）向着在壳体开口定向（84）检测并用户可以选择性地从透镜查看图像（31 ）和/或从显示装置（39）通过所述开口寻找图像。
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