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31. 发明授权

US4991041A Apparatus for moving a cassette between storage and receiving locations 失效
标题翻译：用于在存储和接收位置之间移动盒的装置
公开(公告)号：US4991041A
公开(公告)日：1991-02-05
申请号：US360956
申请日：1989-06-02
申请人： Frederic F. Grant
发明人： Frederic F. Grant
IPC分类号： G11B15/68
CPC分类号： G11B15/686
摘要： Disclosed is a magnetic tape cassette handling apparatus which is compact and reliable and which handles cassettes gently and firmly. The handling apparatus includes (a) a pusher member for gently moving a cassette forwardly into a cassette receiving location, and (b) clamping members for firmly clamping a cassette while moving the cassette rearwardly out of the cassette receiving location. The cassette handling apparatus is preferably located in a central opening of a cassette storage ferris wheel structure which is mounted adjacent to a magnetic tape recorder/player. Thus, the cassette handling apparatus loads and unloads a cassette from the ferris wheel structure into and out of the magnetic tape recorder/player.
摘要翻译：公开了一种紧凑且可靠的磁带盒处理装置，并且轻松牢固地处理盒子。处理装置包括（a）用于将盒子向前轻轻地移动到盒接收位置的推动器构件，以及（b）夹紧构件，用于在将盒子向后移出盒接收位置之前牢固地夹紧盒子。盒式处理装置优选地位于与磁带记录器/播放器相邻安装的盒式存储摩天轮结构的中央开口中。因此，盒式磁带处理装置将磁带盒从摩天轮结构装载并卸载到磁带记录器/播放器中。

32. 发明授权

US4964557A Bidirectional web guiding system 失效
标题翻译：双向网页引导系统
公开(公告)号：US4964557A
公开(公告)日：1990-10-23
申请号：US345378
申请日：1989-04-28
申请人： Nancy L. Sarkisian , Stanley W. Martin
发明人： Nancy L. Sarkisian , Stanley W. Martin
IPC分类号： B65H23/038 , G11B15/56 , G11B15/60 , G11B15/61
CPC分类号： G11B15/61 , B65H23/038 , G11B15/56 , G11B15/60
摘要： Disclosed is a system for bidirectionally guiding web, such as tape in magnetic tape recording/reproducing apparatus. The system eliminates the necessity for edge guides, reduces stresses in web resulting in longer web life, and effects accurate tracking of the web as it is transported in opposite directions. The system includes a plurality of edgeless cylindrical guide rollers mounted on members which are pivoted together. The system includes a plurality of edge sensors and linear servo motors. The edge sensors measure the web edge position and the linear servo motors control the amount of rotation about a pivotal axis which coincides with the center line of a span of web. In this way, web edge position is controlled without any frictional sliding contact between the web and guiding rollers and without the use of edge guides which damage the web edge.
摘要翻译：公开了一种用于双向引导网络的系统，例如磁带记录/再现设备中的磁带。该系统消除了边缘导向器的必要性，减少了卷筒纸中的应力，从而延长了卷筒纸的使用寿命，并且在相反的方向运送时可以对卷材进行精确的跟踪。该系统包括安装在枢转在一起的构件上的多个无边缘圆柱形引导辊。该系统包括多个边缘传感器和线性伺服电机。边缘传感器测量腹板边缘位置，线性伺服电机控制围绕腹板跨度的中心线的枢转轴线的旋转量。以这种方式，控制幅材边缘位置，而不会在幅材和导向辊之间产生任何摩擦滑动接触，并且不使用损坏幅材边缘的边缘引导件。

33. 发明授权

US4891720A Belt drive system for a magnetic tape cassette transport/accessor 失效
标题翻译：用于磁带盒运输/存取器的皮带驱动系统
公开(公告)号：US4891720A
公开(公告)日：1990-01-02
申请号：US285832
申请日：1988-12-16
申请人： Frederic F. Grant , John P. Grant
发明人： Frederic F. Grant , John P. Grant
IPC分类号： G11B15/68
CPC分类号： G11B15/6835
摘要： Disclosed is magnetic tape cassette transport apparatus for use with a magnetic tape cassette storage and utilization system. Magnetic tape cassettes are transported between locations in the system by means of a cassette transport/accessor assembly, which is actuated by a belt drive system using stationary drive motors. This drive system eliminates the need to mount drive motors on the transport assembly, thus effecting a lighter weight, less complex assembly. The transport/accessor assembly includes two vertical rails rigidly mounted on upper and lower wheel carriages which travel on spaced horizontal rails adjacent to the cassette storage and utilization system. An accessor platform travels vertically on the vertical rails. The accessor platform supports a pair of cassette accessor assemblies which insert and extract a cassette from a location in the cassette storage and utilization system. The power for driving the cassette transporter/accessor assembly is provided by stationary motors coupled to the transport/accessor assembly through sprocket driven, high-yield stainless steel belts. Separate motor and belt drive systems provide selective movement of the transport/accessor assembly in horizontal, vertical and lateral directions.
摘要翻译：公开了一种用于磁带盒存储和利用系统的磁带盒传送装置。磁带盒通过盒式磁带传送/存取器组件在系统中的位置之间传送，磁带盒传送/存取组件由使用固定驱动电机的皮带传动系统驱动。该驱动系统无需将驱动电机安装在运输组件上，从而实现更轻的重量，更不复杂的组装。运输/存取组件包括刚性地安装在上和下车轮上的两个垂直导轨，其在与盒式存储和利用系统相邻的间隔的水平轨道上行进。一个访问平台在垂直导轨上垂直移动。存取器平台支持一对盒式磁带存取器组件，其从盒式磁带存储和利用系统中的位置插入和提取盒式磁带。用于驱动盒式传送器/存放器组件的功率由通过链轮驱动的高产量不锈钢带耦合到输送/存取组件的固定电机提供。独立的电机和皮带驱动系统提供运输/存取组件在水平，垂直和横向上的选择性运动。

34. 发明授权

US4891716A Autocalibration of a data signal channel through simultaneous control signals 失效
标题翻译：通过同步控制信号自动校准数据信号通道
公开(公告)号：US4891716A
公开(公告)日：1990-01-02
申请号：US252843
申请日：1988-10-03
申请人： Robert D. Andersen
发明人： Robert D. Andersen
IPC分类号： G11B27/36
CPC分类号： G11B27/36
摘要： A data signal channel, such as a record/reproduce channel of a magnetic tape recorder, is automatically calibrated by means of multiple control signals which are applied to the channel simultaneously. The disclosed technique is fast, accurate, and effective in automatically calibrating a multispeed, multichannel, magnetic tape recorder in an optimum amount of time. A channel to be calibrated is stimulated with a complex wave-form having harmonic content at frequencies where reproduce amplifier equalization controls are effective. The channel response is measured and analyzed into the desired frequency components. A set of error values are determined by calculating the difference between the measured response values and known target response values at the desired frequencies. If the set of error values are not within allowable error limits, new control values are calculated from multiple control equations. The new control values are generated and sent to adjust the equalization controls. The process is reiterated until the calculated errors are within allowable limits for each of the desired frequency components.
摘要翻译：数据信号通道，例如磁带录像机的记录/再现通道，通过同时应用于通道的多个控制信号自动校准。所公开的技术在以最佳时间量自动校准多速，多通道磁带录音机时，快速，精确和有效。待再现的放大器均衡控制有效的频率下谐波含量复杂波形被激发。测量通道响应并将其分析成所需的频率分量。通过计算测量的响应值和在期望频率处的已知目标响应值之间的差来确定一组误差值。如果错误值集合不在允许的误差范围内，则从多个控制方程式计算出新的控制值。生成并发送新的控制值以调整均衡控制。重复该过程，直到计算的误差在每个所需频率分量的允许限度内。

35. 发明授权

US4819096A Rotary head scanner including anamorphic beam-shaping apparatus in an optical signal-transmission channel 失效
标题翻译：旋转头扫描仪，包括光信号传输通道中的变形光束整形装置
公开(公告)号：US4819096A
公开(公告)日：1989-04-04
申请号：US211933
申请日：1988-06-27
申请人： Frederic F. Grant , John P. Grant
发明人： Frederic F. Grant , John P. Grant
IPC分类号： G11B5/53 , G11B15/14 , G11B5/52
CPC分类号： G11B5/53 , G11B15/14
摘要： Rotary scanner apparatus includes a magnetic head on the periphery of a rotatable headwheel having a central axis of rotation, and an off-axis light source for projecting a collimated beam of information-bearing light obliquely onto a planar photodetector on the axis of the headwheel. To optimize electro-optical "action", and thereby enhance signal-to-noise ratio, optical apparatus, interposed between the light source and the photodetector, has an optical characteristic for shaping the light beam, to cuase the size and shape of its cross section, at a plane of incidence coinciding with the photodetector, to correspond substantially to the size and shape of the light-sensitive surface of the photodetector. Preferably, the optical apparatus includes a prism pair of performing anamorphic beam contraction, to convert the beam shape to circular, in its plane of incidence.
摘要翻译：旋转扫描仪装置包括在具有中心旋转轴线的可旋转头轮的周边上的磁头和用于将准直信息轴的光倾斜地投射到头轮的轴上的平面光电检测器上的离轴光源。为了优化电光“动作”，从而提高信噪比，插入在光源和光电检测器之间的光学装置具有用于使光束成形的光学特性，以适应其横截面的尺寸和形状在与光电检测器重合的入射平面处，基本上对应于光电检测器的光敏表面的尺寸和形状。优选地，光学装置包括执行变形光束收缩的棱镜对，以在其入射平面中将光束形状转换成圆形。

36. 发明授权

US4779150A Pneumatically controlled tape-loading tape-transporting apparatus 失效
标题翻译：气动带式带式输送装置
公开(公告)号：US4779150A
公开(公告)日：1988-10-18
申请号：US33308
申请日：1987-04-02
申请人： Frederic F. Grant
发明人： Frederic F. Grant
IPC分类号： G11B15/58 , G11B15/665 , G11B5/08
CPC分类号： G11B15/6656
摘要： Pneumatically controlled apparatus serves jointly for automatically threading magnetic tape along a transport path past a magnetic transducer head external to a magnetic tape cassette, then transporting the tape along such path. Tape transport elements of the pneumatic-type--air-bearing guides, a vacuum capstan, etc.--are arranged, like the magnetic head, on the oxide surface side (the information-bearing surface) of the magnetic tape. To thread the tape, a vacuum source provides an air pressure gradient the effect of which is to draw tape, spanning a supply reel and a take-up reel, from the cassette in the form of an expandable loop which takes the shape of the transport path when the tape loop expands into operative engagement with each transport element and the transducer head. The transport elements further include a pair of concave air-bearing guides disposed immediately adjacent and tangential to opposing sides of the transducer head. The vacuum source, in cooperation with each air-bearing guide, provides the same air pressure gradient, used to thread the tape, to draw, and to thereby maintain, the tape adjacent the tape-guiding surface of each air-bearing guide during movement of the tape between the supply reel and the take-up reel.
摘要翻译：气动控制装置共同用于沿着传送路径自动穿过磁带，通过磁带盒外的磁换能器头，然后沿着该路径传送磁带。在磁带的氧化物表面（信息承载面）上，像气磁头那样布置气动式空气轴承引导件，真空绞盘等的磁带传送元件。为了螺纹带，真空源提供空气压力梯度，其作用是将带状物（跨越供应卷轴和卷取卷轴）以可扩展环形的形式从盒中拉出，该可扩张环采取运输形状当磁带环扩展成与每个传输元件和换能器头部操作接合时的路径。输送元件还包括一对凹形的空气轴承导向器，其紧邻并与切换头的相对侧相切。与每个空气轴承引导件配合的真空源提供相同的空气压力梯度，用于螺纹带，以在移动过程中拉紧并保持与每个空气轴承引导件的带引导表面相邻的带在供带盘和收纸盘之间的带子。

37. 发明授权

US4594699A Faraday-effect magneto-optic transducer apparatus of a rotary form 失效
标题翻译：法拉第效应磁光转换器的旋转形式
公开(公告)号：US4594699A
公开(公告)日：1986-06-10
申请号：US811327
申请日：1985-12-19
申请人： Lewis B. Browder
发明人： Lewis B. Browder
IPC分类号： G11B11/10 , G11B11/105 , G11B11/00
CPC分类号： G11B11/10532 , G11B11/10
摘要： A Faraday-effect magneto-optic transducer of a rotary form includes first and second optical fibers having adjacent ends aligned with each other for joint rotation along a circular path. Opposing surfaces of a planar element of a magneto-optic material are attached respectively to the adjacent ends of the fibers for rotation therewith. The first fiber is arranged with respect to a light source for scanning an entering beam of polarized light along the circular path, a portion of which is immediately adjacent and substantially parallel to the information-bearing surface of a magnetic storage device, such as magnetic tape. The planar element modulates the entering light according to the magnetization of the region of the storage device adjacent the magneto-optic material. The second optical fiber receives light transmitted through the magneto-optic material, to form a beam of polarized light exiting the transducer, whereby the exiting light is modulated with respect to the entering light because of the Faraday magneto-optic effect.
摘要翻译：旋转形式的法拉第效应磁光变换器包括第一和第二光纤，其具有彼此对准的相邻端，用于沿圆形路径的关节旋转。磁光材料的平面元件的相对表面分别附接到纤维的相邻端部以与其一起旋转。第一光纤相对于光源布置，用于沿着圆形路径扫描进入的偏振光束，其一部分紧邻并基本平行于磁存储装置的信息承载表面，例如磁带。平面元件根据与磁光材料相邻的存储装置的区域的磁化来调制入射光。第二光纤接收通过磁光材料透射的光，以形成离开换能器的偏振光束，由此由于法拉第磁光效应，出射光相对于入射光被调制。

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