中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

16 records (took 0.015 seconds)

    Recording digital information signals
    1.
    发明公开
    Recording digital information signals 失效
    记录数字信息信号

    公开(公告)号：EP0171266A3

    公开(公告)日：1987-05-27

    申请号：EP85305502

    申请日：1985-08-01

    Applicant: SONY CORPORATION

    Inventor： Odaka, Kentaro c/o Sony Corporation ,  Sugiki, Hiraku c/o Sony Corporation ,  Ohmura, Yoshimoto c/o Sony Corporation ,  Ohmori, Takashi c/o Sony Corporation ,  Yamada, Makoto c/o Sony Corporation

    IPC: G11B05/588

    CPC classification number: G11B5/5921

    Abstract: in a system for recording and reproducing digital signals on a magnetic tape (2) using a rotary head (1A, 1 B), in which the signals are recorded as a series of oblique tracks (5A, 5B) without guard bands, a pilot signal that controls tracking alignment of a playback head (1 A, 1 B) is recorded at a particular position in a specific pilot signal record region, different from the information signal record region. An erase signal having various recording lengths is also recorded in the pilot signal region such that a start position of the erase signal corresponds substantially to a centre portion of the pilot signal on the adjacent track (5A, 5B). When the recorded tracks are reproduced by a playback head (1 A, 1 B) having a tracing width greateer than the track width, the pilot signals from the adjacent tracks (5A, 5B) will be sampled by sampling pulses generated in response to the reproduced erase signal and compared in level, and the comparison output will be used to control the tracking alignment of the playback head (1A, 1B).

    TRACKING SYSTEM AND METHOD FOR HELICAL SCAN RECORDING DEVICES
    2.
    发明申请
    TRACKING SYSTEM AND METHOD FOR HELICAL SCAN RECORDING DEVICES 审中-公开
    跟踪记录装置的跟踪系统和方法

    公开(公告)号：WO1988009029A1

    公开(公告)日：1988-11-17

    申请号：PCT/US1988001440

    申请日：1988-05-09

    Applicant: EXABYTE CORPORATION

    Inventor： EXABYTE CORPORATION ,  GEORGIS, Steven, P. ,  BEAVERS, Kelly, J. ,  HAUGHLAND, Steve, E.

    IPC: G11B05/588

    CPC classification number: G11B15/4675

    Abstract: A tracking system and method are disclosed for a helical-scan recording device to automatically maintain the recording/playback heads (16A, 16C) in alignment with the stripes of recorded information (18A-18D) on the magnetic tape (12). Each stripe on the magnetic tape includes a servo signal area having four distinct zones (Z1-Z4). An analog servo signal at a preselected frequency is recorded on one of the four zones on each stripe and is recorded at different ones of the four zones in succession on each group of four adjacent stripes. The servo signal recorded on the stripes is detected during playback and processed to maintain the desired head positioning relative to the stripes on the tape. The servo head (16B) is preferably maintained between adjacent stripes on the magnetic tape and signals detected from each of the adjacent stripes maintain head alignment by shifting the positioning of the head in either direction as needed.

    PANTOGRAPHIC MOUNT FOR A MAGNETIC TRANSDUCING HEAD
    3.
    发明申请
    PANTOGRAPHIC MOUNT FOR A MAGNETIC TRANSDUCING HEAD 审中-公开
    用于磁性传感头的圆盘安装

    公开(公告)号：WO1994001862A1

    公开(公告)日：1994-01-20

    申请号：PCT/US1993006295

    申请日：1993-07-01

    Applicant: AMPEX SYSTEMS CORPORATION

    Inventor： AMPEX SYSTEMS CORPORATION ,  MAGNUSSON, Steven, L. ,  LUBIN, James, K.

    IPC: G11B05/588

    CPC classification number: G11B5/588 ,  G11B5/53 ,  G11B5/534

    Abstract: A flexural pantographic mount for use in a helical scan magnetic tape transport employing a closed loop servo system having a specified frequency bandwidth is disclosed. The mount is a boxed leaf stiffened flexural pantograph mount, for holding and varying the position of a moveable head in a helical scan automatic scan tracking magnetic tape transport. The mount exhibits an acceptably low primary mode stiffness and a suitably increased higher order mode stiffness with increased resistance to torsional stresses and is adapted for use in a magnetic tape transport employing a closed loop servo system having a specified frequency bandwidth. The mount includes a moveable body such as a magnetic transducing head assembly coupled at one end of first and second parallel spaced apart elongated flexible flexural pantographic leaves configured at the opposite free ends thereof for attachment to a fixed body. Each leaf includes first and second integrally formed and bent leaf edge extensions, which act as side stiffeners. A triangularly configured opening and a trapezoidally configured opening are formed in each leaf with each opening being configured to include tab projections for bending into the opening to provide transverse or lateral stiffening. An auxiliary web-like stiffening member is added to each leaf in the space therebetween, each auxiliary stiffener being separately formed and configured for attachment to the respective leaf to the side stiffeners and the tab projections of the openings to form a box-like cross-sectional configuration in conjunction with the side leaf edge extensions. The main body portion of each leaf and the edge extensions of the auxiliary stiffeners are configured, dimensioned and arranged for connection to one another in both the longitudinal and transverse directions. The openings are formed in each leaf at locations such that the flexing surface of the leaves, at the connection to the fixed body and at the connection to the moveable body, are smaller width strap sections, substantially less than the width of the corresponding portion of the leaf.

    Abstract translation: 公开了一种用于采用具有指定频率带宽的闭环伺服系统的螺旋扫描磁带传输中的弯曲式集合式安装座。 该安装座是一个装箱的叶片加强的弯曲伸缩式托架，用于在螺旋扫描自动扫描跟踪磁带传输中保持和改变可移动头部的位置。 安装座具有可接受的低初级刚度和适当增加的高阶模量刚度，并且具有增加的抗扭转应力，并适用于采用具有指定频率带宽的闭环伺服系统的磁带传输。 安装座包括一个可移动的主体，例如在第一和第二平行间隔开的​​细长柔性弯曲集合叶片的一端处连接的磁性传感头组件，其在相对的自由端配置，用于固定到固定体上。 每个叶片包括第一和第二整体形成和弯曲的叶缘延伸部，其作为侧加强件。 在每个叶片中形成三角形构造的开口和梯形构造的开口，每个开口构造成包括用于弯曲到开口中的突出部分以提供横向或横向加强。 在它们之间的空间中的每个叶片上添加辅助的网状加强构件，每个辅助加强件被单独地形成并且构造成用于附接到相应的叶片到侧面加强件和开口的翼片突起，以形成盒状横截面， 结合侧叶边缘延伸部分的剖面结构。 每个叶片的主体部分和辅助加强件的边缘延伸部构造成尺寸和布置成在纵向和横向方向上彼此连接。 这些开口形成在每个叶片的位置处，使得叶片的弯曲表面在与固定体的连接处和与可移动体的连接处是较小的宽度带部分，基本上小于相应部分的宽度 叶子。

    Rotary head deflection apparatus
    5.
    发明公开
    Rotary head deflection apparatus 失效
    旋转头偏转装置

    公开(公告)号：EP0145331A3

    公开(公告)日：1986-04-23

    申请号：EP84307931

    申请日：1984-11-15

    Applicant: Matsushita Electric Industrial Co., Ltd.

    Inventor： Inaji, Toshio ,  Okamoto, Hiroshi ,  Yokobori, Nobuyoshi

    IPC: G11B05/53 ,  G11B05/588

    CPC classification number: G11B5/588

    Abstract: A rotary head deflection apparatus for allowing magnetic heads (2, 3) to properly scan signal tracks recorded on a magnetic tape, and used for a helical scan system video tape recorder, which is constituted of driving coils (8a, 8b) wound onto a stator (9) and movable members (4, 5) carrying the magnetic heads (2, 3) and magnets (6a, 6b, 7a, 7b) so that when the driving coils (8a, 8b) are energised, the magnetic heads (2, 3) are displaced in a direction parallel to the axis of rotation of a rotary drum (1).

    Abstract translation: 一种旋转磁头偏转装置，用于允许磁头适当地扫描记录在磁带上的信号轨道，并用于由缠绕在定子上的驱动线圈和承载磁头和磁体的可移动部件构成的螺旋扫描系统磁带录像机， 使得驱动线圈被通电以使得磁头能够沿旋转构件的旋转轴线的方向移位。

    Tracking control apparatus
    6.
    发明公开
    Tracking control apparatus 失效
    跟踪控制装置

    公开(公告)号：EP0219303A3

    公开(公告)日：1988-10-12

    申请号：EP86307739

    申请日：1986-10-07

    Applicant: SONY CORPORATION

    Inventor： Yamada, Makoto Patents Division Sony Corporation ,  Sugiki, Hiraku Patents Division Sony Corporation ,  Odaka, Kentaro Patents Division Sony Corporation

    IPC: G11B15/467 ,  G11B05/588

    CPC classification number: G11B15/4677 ,  G11B5/588

    Abstract: A tracking control apparatus for controlling tracking alignment of a rotary head (1A,1B) with respect to record tracks appearing in succession on a record medium (2) and in each of which there are recorded, at predetermined positions varying from track to track in accordance with a predetermined repeating sequence, pilot signals (P) for controlling tracking and position detecting signals (S,T) having different recorded lengths and which identify the positions of the pilot signals (P). A position detecting signal detector (34) and a counter (36) detect the recorded length of each position detecting signal (S,T), and an identifying signal generator (37) provides an identifying signal (S12) for identifying the recorded length of the position detecting signal (S,T) recorded in a track being traced by the rotary head (1A,1B). A sampling signal (SP1.SP2) is generated in response to the identifying signal (S12) for sampling a pilot signal (P) reproduced as cross-talk from an adjacent track so as to reduce the pull-in time of the tracking alignment operation.

    Methods of and apparatus for recording digital signals
    8.
    发明公开
    Methods of and apparatus for recording digital signals 失效
    记录数字信号的方法和装置

    公开(公告)号：EP0150992A3

    公开(公告)日：1987-05-27

    申请号：EP85300470

    申请日：1985-01-24

    Applicant: SONY CORPORATION

    Inventor： Sugiki, Hiraku c/o Sony Corporation ,  Odaka, Kentaro c/o Sony Corporation ,  Satake, Tomoji c/o Sony Corporation ,  Ohmori, Takashi c/o Sony Corporation ,  Yamada, Makoto c/o Sony Corporation

    IPC: G11B05/588 ,  G11B20/10 ,  G11B15/18

    CPC classification number: G11B20/10527 ,  G11B15/4677 ,  G11B21/103

    Abstract: In a system for recording and reproducing digital signals on a magnetic tape (2) by using a rotary head (1A, 1B), in which signals are recorded as a series of oblique tracks (5A. 5B) without guard bands, a pilot signal (P) that controls tracking alignment of a playback head (1 A, 1B) is recorded at a particular position in a specific pilot signal record region, independent from the information signal record region. The pilot signal (P) is arranged at first predetermined positions separated from the ends of the oblique tracks (5A, 5B) in the pilot signal record region on every other one of the oblique tracks (5A. 5B) and at second predetermined positions separated from the ends of the oblique tracks (5A, 5B) in the pilot signal record region on the alternate ones of the oblique tracks (5A, 5B). An erase signal (E) can also be recorded in the pilot signal record region such that a start position of the erase signal (E) corresponds substantiallyto a centre portion of the pilot signal (P) on the adjacent oblique track (5A, 5B). When the recorded oblique tracks (5A. 5B) are reproduced by a rotary playback head (1A. 1B) having a tracking width greater than the track width, the pilot signal (P) from the adjacent oblique tracks (5A. 58) will be detected and compared in level, and the comparison output used to control the tracking alignment of the rotary playback head (1A. 1B).

    Methods of and apparatus for reproducing signals
    9.
    发明公开
    Methods of and apparatus for reproducing signals 失效
    用于复制信号的方法和装置

    公开(公告)号：EP0174789A3

    公开(公告)日：1987-05-20

    申请号：EP85306227

    申请日：1985-09-02

    Applicant: SONY CORPORATION

    Inventor： Sugiki, Hiraku c/o Patents Division ,  Yamada, Makoto c/o Patents Division ,  Miyamori, Shinji c/o Patents Division

    IPC: G11B05/588 ,  G11B21/10

    CPC classification number: G11B15/4677 ,  G11B21/103

    Abstract: In an apparatus for reproducing signals in a plurality of oblique tracks (5A,5B) on a recording medium (2) by a rotary head (1A,1B), the signals in the tracks (5A,5B) contain a digital information signal in a first predetermined area on the oblique tracks (5A,5B) and a tracking control signal including a tracking pilot signal (P) and an erase signal (E) in a second predetermined area. When the recorded tracks (5A,5B) are reproduced by a rotary playback head (1A,1B) having a tracing width greater than the track width, the pilot signals (P) from the adjacent tracks (5A,5B) will be detected and compared in level. A tracking signal for controlling the tracking alignment of the rotary playback head (1A,1B) is generated in response to the level comparison, and is adjusted in level response to the level of the tracking control signal.

Patent Agency Ranking