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    • 1. 发明授权
    • Visible light-transmissive IR filter with distorted portions
    • 具有变形部分的可见光透射IR滤光片
    • US07636193B2
    • 2009-12-22
    • US11381261
    • 2006-05-02
    • Michelle M. BellancaAndrew J. OuderkirkHung T. TranMichael F. Weber
    • Michelle M. BellancaAndrew J. OuderkirkHung T. TranMichael F. Weber
    • G02B5/20F21V9/04
    • G02B5/287
    • The present application discloses filters and methods of making filters. In one aspect, a filter comprises a multilayer optical film (MOF) having a first reflection band, the MOF including distorted portions, the distorted portions having a second reflection band different from the first reflection band, a transparent outer layer disposed on a first side of the MOF, and an IR blocking material residing on the MOF and between the transparent outer layer and the MOF, wherein the IR blocking material is selectively disposed in the distorted portions. In another aspect, a method of producing a filter comprises the steps of providing a multilayer optical film (MOF) having a first reflection band, distorting portions of the MOF, the distorted portions having a second reflection band, different from the first reflection band, and transferring a layer of IR blocking material to the distorted portions of the MOF.
    • 本申请公开了制造过滤器的过滤器和方法。 一方面,滤光器包括具有第一反射带的多层光学膜(MOF),MOF包括失真部分,失真部分具有与第一反射带不同的第二反射带,设置在第一侧的透明外层 的MOF和IR阻挡材料,其位于MOF上,并且在透明外层和MOF之间,其中IR阻挡材料选择性地设置在变形部分中。 另一方面,制造滤波器的方法包括以下步骤:提供具有第一反射带的多层光学膜(MOF),MOF的变形部分,具有与第一反射带不同的第二反射带的失真部分, 并将一层IR阻挡材料转移到MOF的变形部分。
    • 5. 发明授权
    • Encoded servo track configurations, servo writer and systems/method
regarding same
    • 编码伺服磁道配置,伺服写入器和系统/方法相同
    • US6134070A
    • 2000-10-17
    • US861664
    • 1997-05-22
    • Hung T. TranTheodore A. SchwarzRobert J. YoungquistAlan R. OlsonRichard W. MolstadGary D. MoellerRichard E. JewettChristopher L. Hill
    • Hung T. TranTheodore A. SchwarzRobert J. YoungquistAlan R. OlsonRichard W. MolstadGary D. MoellerRichard E. JewettChristopher L. Hill
    • G11B5/31G11B5/008G11B5/265G11B5/48G11B5/55G11B5/584G11B21/08G11B21/10G11B21/02
    • G11B5/4893G11B21/086G11B21/103G11B5/5504G11B5/584G11B5/5508
    • A servo track recording tape includes a plurality of data tracks and a servo band dedicated for servo information. The servo band includes substantially uniformly written servo carrier information across a predetermined servo carrier width along the length of the tape with at least one encoded track pitch defined therein. Each encoded track pitch has alternating erased and non-erased portions along the length of the tape for defining servo tracks. The alternating erased and non-erased portions of the at least one encoded track pitch include encoded information provided by varying the length of one or more of the erased portions. The encoded information may be representative of tape locations along the length of the tape. The servo band may include two or more encoded track pitches defined in the substantially uniformly written servo carrier information with each encoded track pitch defining corresponding servo tracks. The alternating erased and non-erased portions of each of the two or more encoded track pitches may include encoded information uniquely identifying the corresponding servo tracks. Another servo tracking data recording tape includes a servo band including at least one single frequency servo track written in an erased width of the servo band along the length of the tape. The single frequency servo track includes encoded blocks of information along the length of the tape representative of at least one characteristic of the tape. Systems, head assemblies and encoding methods for use in providing such encoded servo track recording tape configurations are also described.
    • 伺服记录磁带包括多个数据磁道和专用于伺服信息的伺服带。 伺服带包括沿着带长度的预定伺服载波宽度的基本均匀地写入的伺服载波信息,其中限定了至少一个编码的轨道间距。 每个编码的轨道间距具有沿磁带长度的交替擦除和不擦除部分,用于定义伺服磁道。 至少一个编码轨道间距的交替擦除和未擦除部分包括通过改变一个或多个擦除部分的长度而提供的编码信息。 编码信息可以代表沿磁带长度的磁带位置。 伺服带可以包括在基本均匀地写入的伺服载体信息中限定的两个或多个编码的轨道间距,每个编码的轨道间距限定对应的伺服轨道。 两个或多个编码轨道间距中的每一个的交替擦除和未擦除部分可以包括唯一地识别对应的伺服轨道的编码信息。 另一个伺服跟踪数据记录带包括一个伺服带,该伺服带包括至少一个沿着磁带长度写入伺服带的擦除宽度的单个频率伺服磁道。 单频伺服磁道包括代表带的至少一个特征的沿磁带长度的编码信息块。 还描述了用于提供这种编码伺服记录带配置的系统,头组件和编码方法。
    • 9. 发明授权
    • Head assembly having a single pass servo writer
    • 头组件具有单程伺服写入器
    • US06091565A
    • 2000-07-18
    • US322879
    • 1999-05-28
    • Theodore A. SchwarzRobert J. YoungquistHung T. Tran
    • Theodore A. SchwarzRobert J. YoungquistHung T. Tran
    • G11B5/55G11B5/584G11B21/08G11B21/10G11B21/02
    • G11B5/5508G11B21/083G11B21/103G11B5/5504G11B5/584
    • A tape servo system includes tape having bands of tracks including at least one data band having a plurality of data tracks of track pitch P and a servo band dedicated for servo information. The servo band includes two or more noncontiguous servo tracks with each pair of adjacent servo tracks of the two or more noncontiguous servo tracks having a center to center separation equal to M * P, wherein M for each pair of adjacent servo tracks may be any integer .gtoreq.2. The system may further include a head assembly having a single magnetoresistive read element tapped to provide at least (K+1) tapped servo read elements for use in reading servo information written to the servo band; wherein K is equal to the integer M for the pair of adjacent servo tracks having the greatest center to center separation and a repositioning assembly for repositioning the head assembly as a function of the servo information. Further, the center to center separation between pairs of adjacent servo tracks of the two or more noncontiguous servo tracks may be different for at least two pairs of adjacent servo tracks. A servo tracking data recording tape with two or more noncontiguous servo tracks having center to center separation between pairs of adjacent servo tracks being different for at least two pairs of adjacent servo tracks is also provided along with a method for servo track identification for use therewith. Further, track read/write head assemblies wherein the servo read and write elements are along the same gap lines as the data read and write assemblies, respectively, are provided.
    • 带式伺服系统包括具有轨道带的磁带,该轨道包括至少一个具有多个磁道间距P的数据磁道的数据带和专用于伺服信息的伺服带。 伺服带包括两个或更多个不连续的伺服轨道,其中两个或更多个不连续的伺服轨道的每对相邻伺服轨道具有等于M * P的中心到中心间隔,其中每对相邻伺服轨道的M可以是任何整数 > / = 2。 该系统还可以包括具有单个磁阻读取元件的头组件,其被抽头以提供用于读取写入伺服带的伺服信息的至少(K + 1)个抽头伺服读取元件; 其中K等于具有最大中心到中心分离的一对相邻伺服轨道的整数M.以及用于根据伺服信息重新定位头部组件的重新定位组件。 此外,对于至少两对相邻的伺服磁道,两个或更多个不连续伺服磁道的相邻伺服磁道对之间的中心到中心分离可以是不同的。 具有两个或更多个不连续伺服磁道的伺服跟踪数据记录磁带还提供有用于至少两对相邻伺服磁道的至少两对相邻伺服磁道不同的中心到中心分离的伺服磁道。 此外,跟踪读/写头组件,其中伺服读和写元件分别与数据读写组件沿着相同的间隙线。
    • 10. 发明授权
    • Track servo control method for data cartridge tape drives
    • 跟踪磁带驱动器的伺服控制方法
    • US5661616A
    • 1997-08-26
    • US394060
    • 1995-02-24
    • Hung T. TranGeorge L. Chavez, Jr.Robert J. Youngquist
    • Hung T. TranGeorge L. Chavez, Jr.Robert J. Youngquist
    • G11B5/584G11B5/55
    • G11B5/5508
    • A track control method for a data cartridge tape drive which includes a multichannel head assembly, a positioner for controllably positioning the multichannel head assembly transversely to a transport path for a tape driven by the drive, and drive electronics responsive to a carrier servo signal. The track control method initializes the data cartridge tape drive by operating the positioner to move the head assembly to a preselected transverse position. Next, the tape is moved along the transport path and the positioner is moved to substantially minimize a feedback signal derived from the carrier servo signal. The head assembly is stepped a first predetermined number of steps in a first transverse direction until the carrier servo signal is not detected. If the carrier servo signal is not detected, then the positioner is stepped so as to move the head assembly a second predetermined number of steps in a second transverse direction to locate a reference track.
    • 一种用于数据盒式磁带驱动器的轨道控制方法,其包括多通道磁头组件,定位器,用于可控地定位多通道磁头组件横向于由驱动器驱动的磁带的传送路径,以及响应于载体伺服信号的驱动电子设备。 轨道控制方法通过操作定位器来初始化数据盒式磁带驱动器,以将头部组件移动到预选的横向位置。 接下来,磁带沿着传送路径移动,定位器被移动以使从载波伺服信号导出的反馈信号基本上最小化。 头组件在第一横向方向上以第一预定数量的台阶步进,直到未检测到载体伺服信号。 如果没有检测到载波伺服信号,则定位器是阶梯式的,以使头部组件在第二横向上移动第二预定数量的步骤以定位参考轨道。