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1. 发明授权

US5629815A Apparatus and method for reducing head wear in helical scan tape transport 失效
标题翻译：用于减少螺旋扫描带运输中头部磨损的装置和方法
公开(公告)号：US5629815A
公开(公告)日：1997-05-13
申请号：US408920
申请日：1995-03-22
申请人： Samuel D. Cheatham , William C. Dodt , John C. Owens , Debra C. Rutherford
发明人： Samuel D. Cheatham , William C. Dodt , John C. Owens , Debra C. Rutherford
IPC分类号： G11B5/105 , G11B33/14 , G11B5/027
CPC分类号： G11B5/105 , G11B33/1446
摘要： An apparatus for reducing head wear in a helical scan tape transport passes a flow of relatively clean, dry air through a transport housing without allowing the flow of air to flow directly across the rotary head assembly. Air from a fan positioned at a rear portion of the transport cools a power supply and creates a positive air pressure within the transport housing. The air is heated by the power supply before it passes through the transport housing, so that only relatively "dry" air reaches the rotary head assembly. The air is exhausted out the opening through which a tape is loaded. This arrangement substantially reduces the possibility of contaminants entering the transport housing. Additionally, the air cleans a magnetic recording tape on a tape cartridge as the tape is passes through the transport housing so that only relatively "clean" tape reaches the rotary head assembly.
摘要翻译：用于减少螺旋扫描带输送器中的头部磨损的装置将相对干净的干燥空气流通过输送壳体，而不允许空气流直接流过旋转头组件。来自位于运输器后部的风扇的空气冷却电源并在运输壳体内产生正空气压力。空气在其通过运输壳体之前被电源加热，使得仅相对“干燥”的空气到达旋转头组件。空气从磁带装入的开口排出。这种布置大大降低了污染物进入运输壳体的可能性。此外，当磁带穿过传送壳体时，空气清洁磁带盒上的磁记录带，使得只有相对“干净的”磁带到达旋转磁头组件。

2. 发明授权

US4188649A Magnetic head having a jagged-edged gap, and method for producing such head 失效
标题翻译：具有锯齿状间隙的磁头及其制造方法
公开(公告)号：US4188649A
公开(公告)日：1980-02-12
申请号：US857500
申请日：1977-12-05
申请人： Samuel D. Cheatham , Neil L. Robinson , Edmond W. Smathers
发明人： Samuel D. Cheatham , Neil L. Robinson , Edmond W. Smathers
IPC分类号： G11B5/127 , G11B5/23 , G11B5/25
CPC分类号： G11B5/23 , G11B5/127
摘要： An AC magnetic erase head having improved AC erase characteristics, the magnetic head being formed of two half core elements of a magnetic material, preferably ferrite, defining an irregular edged or jagged-edged gap, and including a non-magnetic substance, preferably glass, within the gap. The magnetic head is preferably produced by thermally etching ferrite magnetic material forming the half core elements by means of relatively prolonged heat soak at an elevated temperature.
摘要翻译：具有改进的AC擦除特性的AC磁性擦除头，该磁头由磁性材料的两个半芯元件形成，优选铁氧体，其限定不规则边缘或锯齿状间隙，并且包括非磁性物质，优选玻璃，在差距之内。磁头优选通过在高温下通过相对长时间的热浸热形成半芯元件的铁氧体磁性材料来制造。

3. 发明授权

US5456569A Balanced horizontal axis assembly for use in an automated memory cartridge system 失效
标题翻译：平衡水平轴组件，用于自动化存储卡盒系统
公开(公告)号：US5456569A
公开(公告)日：1995-10-10
申请号：US153547
申请日：1993-11-16
申请人： Samuel D. Cheatham , Jorgen Frandsen , Daniel J. Plutt
发明人： Samuel D. Cheatham , Jorgen Frandsen , Daniel J. Plutt
IPC分类号： B25J9/00 , B25J9/04 , G11B15/68 , B66C23/00
CPC分类号： B25J9/041 , B25J9/0084 , G11B15/6835
摘要： For primary use in a storage and retrieval subsystem in a data processing system, a robotic transfer system acts to transfer selected electronic magnetic storage cartridges between their storage and transducing positions, typically between vertically stacked concentric tape storage holders and a selected tape drive. The robotic transfer system for handling tape cartridges includes two hands, each mounted on a separate vertical axis disposed at opposite ends of a balanced rotating horizontal axis, such that no tape cartridge is ever more than 90.degree. away from the nearest hand. The use of two hands also provides a redundant data retrieval capability without concentrating the weight of two hands at a single end of a revolving horizontal arm, thus reducing the moments generated by angular movement and providing for faster tape access time and greater long-term system reliability.
摘要翻译：为了在数据处理系统中的存储和检索子系统中主要使用，机器人传输系统用于将所选择的电子磁存储盒传送在其存储和转换位置之间，通常在垂直堆叠的同心磁带存储保持器和选定的磁带驱动器之间。用于处理带盒的机器人传送系统包括两只手，每只手分别安装在平衡的旋转水平轴的相对端的单独的垂直轴上，使得没有带盒距离最近的手离开超过90°。使用双手还提供冗余的数据检索功能，而不会将两只手的重量集中在旋转水平臂的单个端部，从而减少由角度运动产生的力矩，并提供更快的磁带存取时间和更长的长期系统可靠性。

4. 发明授权

US5251090A Self sealing data storage element 失效
标题翻译：自密封数据存储元件
公开(公告)号：US5251090A
公开(公告)日：1993-10-05
申请号：US743457
申请日：1991-08-09
申请人： Samuel D. Cheatham , Jerry L. Donze
发明人： Samuel D. Cheatham , Jerry L. Donze
IPC分类号： G11B23/107 , G11B23/26 , G03B15/32 , G11B23/02
CPC分类号： G11B23/26 , G11B23/107
摘要： The self sealing data storage element presents a uniform form factor data storage element that can be used to house any one of a plurality of types of tape media. The tape media is wound around a single reel contained within a housing of predefined external dimensions. The housing includes an opening in one corner thereof through which the tape media is extracted by an associated drive element. In order to enable the drive element to securely grasp the tape media, a leader block is affixed to the end of the tape media nearest the opening in the housing. In order to provide the self-sealing capability, a length of leader tape is provided between the leader block and tape media in order to completely encapsulate the tape media once it is wound around the reel contained within the housing. The leader block is of width at least as great as that as the tape media and preferably slightly larger in order to automatically compensate for any lack of uniformity in the winding of the tape media on the reel. The leader tape can be any compliant material and is preferably an integral part of the tape media, such as the tape media absent the recording surface.
摘要翻译：自密封数据存储元件呈现可以用于容纳多种类型的磁带介质中的任何一种的均匀的形状因数数据存储元件。磁带介质围绕包含在预定外部尺寸的壳体内的单个卷轴缠绕。壳体在其一个角部中包括开口，通过该开口，磁带介质由相关的驱动元件提取。为了使驱动元件牢固地抓住带介质，引导块被固定在最靠近外壳中的开口的磁带介质的端部。为了提供自密封能力，在引导块和带介质之间提供一段引导带，以便在带介质缠绕在容纳在壳体内的卷轴上时完全包封带状介质。引导块的宽度至少与带介质的宽度一样大，并且优选地略大，以便自动补偿卷轴上的带介质的卷绕中的任何不均匀性。引导带可以是任何柔性材料，并且优选地是带介质的组成部分，例如不存在记录表面的带介质。

5. 发明授权

US5547142A Tape cassette with internal tape cleaning and locking 失效
标题翻译：磁带盒带内部胶带清洁和锁定
公开(公告)号：US5547142A
公开(公告)日：1996-08-20
申请号：US367513
申请日：1994-12-30
申请人： Samuel D. Cheatham , Lynn C. Jacobs , Donovan M. Janssen , Michael L. Leonhardt , Charles A. Milligan , Christian A. Todd
发明人： Samuel D. Cheatham , Lynn C. Jacobs , Donovan M. Janssen , Michael L. Leonhardt , Charles A. Milligan , Christian A. Todd
IPC分类号： G11B23/087 , G11B23/50
CPC分类号： G11B23/502 , G11B23/087 , G11B23/08721 , G11B23/08735
摘要： A cassette for a high performance tape drive is disclosed. A cassette shell having the same general external dimensions as an industry standard leader block tape cartridge (3480/3490) includes both a tape supply spool and a take-up spool. Two tape guides present a segment of tape to a cassette access port which can be closed by a sliding door to prevent contamination when the tape is not in use. A tape cleaning device and a spool locking device are incorporated into the cassette mechanism.
摘要翻译：公开了一种用于高性能磁带机的磁带盒。具有与工业标准引导块式带盒（3480/3490）相同的一般外部尺寸的盒式外壳包括带供应卷轴和卷取卷轴。两个磁带引导件将一段磁带呈现到磁带盒存取端口，磁带盒可以由滑动门关闭，以防止在磁带未使用时产生污染。磁带清洁装置和卷轴锁定装置并入到盒机构中。

6. 发明授权

US4287540A Stabilized recording 失效
标题翻译：稳定录音
公开(公告)号：US4287540A
公开(公告)日：1981-09-01
申请号：US101349
申请日：1979-12-07
申请人： Samuel D. Cheatham , Munro K. Haynes
发明人： Samuel D. Cheatham , Munro K. Haynes
IPC分类号： G11B5/02 , G11B5/09 , G11B5/48 , G11B5/596 , G11B27/30 , G11B5/25
CPC分类号： G11B5/02 , G11B27/3027 , G11B5/488 , G11B5/596 , G11B2220/20 , G11B2220/90
摘要： A first signal to be stabilized in a magnetic record member is recorded via a head having a given maximal gap length and pole pieces of high saturation induction. After the first signal is recorded, the magnetic record member is surface erased for stabilizing the just recorded signal. In a preferred form, the surface erasing is performed by AC erasing via a transducer having a gap length less than said maximal gap length. The pole pieces of the erasing head need not have the high saturation induction of the first mentioned head. After such stabilization, signals can be easily recorded and recovered from the magnetic record member by using transducers with gap lengths less than such given maximal gap length and using the normal ferrite heads having a lower saturation induction than the first mentioned heads. The first signal can be advantageously employed as a position indicating signal in a magnetic record member, such as a storage disk or tape. The first signal can also be used for other purposes, such as phase control for recording and in a controlled access or security system.
摘要翻译：通过具有给定的最大间隙长度和高饱和感应极点的磁头来记录要在磁记录元件中稳定的第一信号。在记录第一信号之后，磁记录元件被表面擦除以稳定刚刚记录的信号。在优选形式中，通过经由具有小于所述最大间隙长度的间隙长度的换能器的AC擦除来执行表面擦除。擦除头的极片不需要具有第一个头部的高饱和感应。在这样的稳定之后，通过使用间隙长度小于给定的最大间隙长度的换能器，并使用具有比前述头部低的饱和感应的普通铁氧体磁头，可以容易地从磁记录部件记录和恢复信号。第一信号可以有利地用作在诸如存储盘或磁带的磁记录部件中的位置指示信号。第一个信号也可以用于其他目的，例如记录的相位控制和受控访问或安全系统。

7. 发明授权

US5479097A Data corruption detector for magnetic media 失效
标题翻译：用于磁性介质的数据损坏检测器
公开(公告)号：US5479097A
公开(公告)日：1995-12-26
申请号：US175049
申请日：1993-12-29
申请人： Samuel D. Cheatham , Jerry L. Donze , James M. Frary
发明人： Samuel D. Cheatham , Jerry L. Donze , James M. Frary
IPC分类号： G01R33/12 , G11B23/02 , G11B23/36
CPC分类号： G11B23/36 , G01R33/1207 , G11B23/021
摘要： A tape cartridge or other physical volume includes a housing configured to accommodate magnetic data storage media, such as a reel of magnetic tape. A magnetic field detector is coupled to the housing for indicating whether the housing has been exposed to a magnetic field of sufficient intensity to corrupt or bulk erase the magnetic media. In a first embodiment, the detector is implemented as a magnetic media element having a predefined pattern of magnetic domains recorded thereon. In a second embodiment, the detector is implemented with a magnetic film element having a predefined pattern of magnetic domains recorded thereon and a polarizing filter stacked on top of the magnetic film element to polarize light incident upon the magnetic film element. Based on the Kerr effect, light incident upon the magnetic domains will undergo a shift in polarization angle before being reflected back to the polarizing filter. Erasure or alteration of the magnetic domains will modify the polarization shift. A dielectric reflector disposed between the polarizing filter and the magnetic film element will multiply the Kerr effect. A reference image is provided for visual comparison of the light reflected from the magnetic domains.
摘要翻译：带盒或其他物理卷包括被配置为容纳磁数据存储介质（例如磁带卷）的外壳。磁场检测器耦合到壳体，用于指示外壳是否暴露于足够强度的磁场以损坏或大量擦除磁性介质。在第一实施例中，检测器被实现为具有记录在其上的预定义的磁畴图案的磁性介质元件。在第二实施例中，检测器由具有记录在其上的磁畴的预定图案的磁性膜元件和层叠在磁性膜元件的顶部上的偏振滤光片来实现，以偏振入射在磁性膜元件上的光。基于克尔效应，入射到磁畴的光在被反射回偏振滤光器之前会经历偏振角的偏移。磁畴的擦除或改变将改变偏振偏移。设置在偏振滤光器和磁膜元件之间的介质反射器将乘以克尔效应。提供参考图像用于从磁畴反射的光的目视比较。

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