Magnetic recording and reproducing apparatus with repositioning stop mode
    1.
    发明授权
    Magnetic recording and reproducing apparatus with repositioning stop mode 失效
    具有重新定位停止模式的磁记录和再现装置

    公开(公告)号:US5608585A

    公开(公告)日:1997-03-04

    申请号:US462536

    申请日:1995-06-05

    CPC分类号: G11B15/087 G11B15/20

    摘要: A tape run control unit in the magnetic recording/reproducing apparatus is provided with a discrimination element and a control element. The discrimination element detects a stand-by time until a signal to be recorded is received in repositioning of the tape and generates a discrimination signal for discriminating the length of the stand-by time. The control element controls tape run driving unit such as a capstan motor during the reposition and controls the stop position of the tape such that a magnetic head scans the portion of the tape where no data is recorded. After completion of repositioning, furthermore, the control element works according to a discrimination signal so as to select the stop mode which involves the release of pinch roller when the stand-by time is long and to select the mode for simply stopping only the capstan when the stand-by time is short.

    摘要翻译: 磁记录/再现装置中的磁带运行控制单元设置有鉴别元件和控制元件。 识别元件检测待机时间,直到在重新定位带子时接收待记录的信号,并产生用于区分待机时间的长度的鉴别信号。 控制元件在重新定位期间控制诸如主导轴马达的磁带运行驱动单元,并且控制磁带的停止位置,使得磁头扫描没有记录数据的磁带部分。 此外,在重新定位完成之后,控制元件根据判别信号工作,以便当待机时间长时选择包括压紧辊释放的停止模式,并且选择仅简单地停止绞盘的模式 待机时间短。

    Magnetic recording and reproducing apparatus
    2.
    发明授权
    Magnetic recording and reproducing apparatus 失效
    磁记录和再现设备

    公开(公告)号:US5448427A

    公开(公告)日:1995-09-05

    申请号:US561574

    申请日:1990-08-02

    CPC分类号: G11B15/087 G11B15/20

    摘要: A tape run control unit in a magnetic recording and reproducing apparatus is provided with a discriminator and on a controller. The discriminator detects a stand-by time until a signal to be recorded is received in repositioning of the tape and generates a discrimination signal for discriminating the length of the stand-by time. The controller controls tape driving unit such as a capstan motor during the reposition and controls the stop position of the tape such that a magnetic head scans the portion of the tape where no data is recorded. After completion of repositioning, furthermore, the controller is responsive to a discrimination signal so as to select the stop mode which involves the release of pinch roller when the stand-by time is long and to select the mode for simply stopping only the capstan when the stand-by time is short.

    摘要翻译: 在磁记录和再现装置中的磁带运行控制单元设置有鉴别器和控制器。 鉴别器检测待机时间,直到在磁带重新定位时接收待记录的信号,并产生用于区分待机时间的长度的鉴别信号。 控制器在重新定位期间控制诸如主导轴马达的磁带驱动单元,并且控制磁带的停止位置,使得磁头扫描不记录数据的磁带部分。 此外,在完成重新定位之后,控制器响应于判别信号,以便当待机时间长时选择包括压紧辊的释放的停止模式,并且选择仅当主动轮停止时的简单停止的模式 待机时间短。

    Drum base on which a drum of a magnetic tape recorder is mounted
    3.
    发明授权
    Drum base on which a drum of a magnetic tape recorder is mounted 失效
    鼓基座上安装有磁带录音机的磁鼓

    公开(公告)号:US6078464A

    公开(公告)日:2000-06-20

    申请号:US622380

    申请日:1996-03-27

    IPC分类号: G11B15/61 G11B25/06

    CPC分类号: G11B25/063 G11B15/61

    摘要: A drum base according to he invention, on which a drum of a magnetic tape recorder is mounted, comprises a substantially annular frame having a fixing surface to which the drum is fixed; at least one through hole extending through the fixing surface for allowing a screw which is to be threadably attached to a threaded hole formed in the drum to pass therethrough; and a pair of mounting surfaces provided on the fixing surface on which the drum is mounted, the mounting surfaces being located adjacent to the at least one through hole so as to have a symmetrical relationship in a circumferential direction of the annular frame with respect to the at least one through hole and within a range of a diameter dimension of the at least one through hole in a radial direction of the annular frame.

    摘要翻译: 根据本发明的鼓座,其上安装有磁带录音机的鼓,包括具有固定表面的大致环形的框架,滚筒固定到该固定表面上; 至少一个穿过所述固定表面的通孔,用于允许螺纹连接到形成在所述滚筒中的螺纹孔的螺钉通过; 以及设置在所述固定表面上的一对安装表面,所述安装表面安置在所述固定表面上,所述安装表面邻近所述至少一个通孔定位,以便在所述环形框架的圆周方向上相对于所述至少一个通孔具有对称关系 至少一个通孔并且在所述环形框架的径向方向上的所述至少一个通孔的直径尺寸的范围内。

    Rotary head and recording/reading apparatus provided with rotary head
    4.
    发明授权
    Rotary head and recording/reading apparatus provided with rotary head 失效
    旋转头和记录/读取装置配有旋转头

    公开(公告)号:US5978185A

    公开(公告)日:1999-11-02

    申请号:US773631

    申请日:1996-12-23

    摘要: Disclosed in an arrangement to achieve satisfactory head contact by increasing contact face pressure at a head gap and to reduce the change in time of head contact performance in a double azimuth head. Heads in a portion in which a tape is slid are respectively constructed with each head having two different arcs with a radius of curvature R1 in a first area which includes a gap, and with a radius of curvature R2 in a second area which is adjacent to the first area. A transition portion P for transitioning an arc with the radius of curvature R1 and an arc with the radius of curvature R2 is located in the direction of its adjacent head based upon a contact point Q on R1 of a common tangent drawn from an arc forming a periphery of a rotating drum to a circle formed by R1. The relationship between the radiuses of curvature in two areas is set to R1>R2. As the area in which a tape is in contact can be reduced, contact face pressure by the tape on a gap can be increased, satisfactory head contact can be obtained and as a contact area with a tape is wide to some extent, a change in time of contact performance can be reduced.

    摘要翻译: 公开了通过增加头部间隙处的接触面压力来实现令人满意的头部接触的装置,并且减少双方位头部中的头部接触性能的时间变化。 分别构成带子滑动部分的头部,每个头部在具有间隙的第一区域中具有曲率半径R1的两个不同的弧,并且在与第二区域相邻的第二区域中具有曲率半径R2 第一个区域。 用于使具有曲率半径R1的圆弧和具有曲率半径R2的弧的过渡部分P基于R1上的接触点Q位于其相邻头部的方向上,该接触点Q从形成 旋转鼓的周边由R1形成的圆。 两个区域的曲率半径之间的关系设置为R1> R2。 随着胶带接触的区域可以减小,可以增加带上间隙的接触面压力,可以获得令人满意的头部接触,并且由于与带的接触面积在一定程度上是宽的, 可以减少接触性能的时间。

    Optical pickup and optical disk apparatus
    5.
    发明申请
    Optical pickup and optical disk apparatus 审中-公开
    光拾取和光盘设备

    公开(公告)号:US20070025207A1

    公开(公告)日:2007-02-01

    申请号:US11492949

    申请日:2006-07-26

    IPC分类号: G11B7/00

    摘要: A first laser light source for emitting an optical beam of a first wavelength, a second laser light source for emitting an optical beam of a second wavelength different from the first wavelength and first and second polarizing devices through which the optical beams of first and second wavelengths transmit are provided. The first polarizing device changes the phase of the optical beam of first wavelength by about (M+½) times the first wavelength (M being integer) and the second polarizing device changes the phase of the optical beam of second wavelength by about (N+½) times the second wavelength (N being integer).

    摘要翻译: 用于发射第一波长的光束的第一激光光源,用于发射不同于第一波长的第二波长的光束的第二激光光源以及第一和第二波长的光束的第一和第二偏振装置 提供传输。 第一偏振装置将第一波长的光束的相位改变第一波长的(M + 1/2)倍(M为整数),第二偏振装置将第二波长的光束的相位改变约(N + 1/2)倍的第二波长(N为整数)。

    Optical Pickup Device and Optical Disc Apparatus Using the Same
    8.
    发明申请
    Optical Pickup Device and Optical Disc Apparatus Using the Same 审中-公开
    光拾取装置及其使用的光盘装置

    公开(公告)号:US20090119692A1

    公开(公告)日:2009-05-07

    申请号:US12265742

    申请日:2008-11-06

    IPC分类号: G11B33/12

    摘要: An optical pickup device includes an optical system unit, a circuit board to control the optical system unit, and send and receive signals, a housing to place the optical system unit and the circuit board, and a flexible printed circuit board to connect electrically with the circuit board, extend to an outside from the housing, and fold back an extended portion, an extended direction of which is changed, in which the flexible printed circuit board is folded back so as to be faced to a side surface of the housing positioned at an extended proximal portion of the flexible printed circuit board, and a dead space of an optical disc apparatus to be mounted with the optical pickup device can be effectively used without making the apparatus large and thick, taking an inner space widely.

    摘要翻译: 一种光拾取装置,包括光学系统单元,用于控制光学系统单元的电路板以及发送和接收信号,用于放置光学系统单元和电路板的外壳以及柔性印刷电路板,以与 电路板从壳体延伸到外部,并且折回延伸方向延伸的延伸部分,其中柔性印刷电路板被折回,以便面对位于壳体的壳体的侧表面 柔性印刷电路板的延伸的近端部分以及与光学拾取装置一起安装的光盘装置的死空间可以有效地使用,而不会使装置大而厚,从而使内部空间广泛。

    Magnetic tape loading mechanism and method
    9.
    发明授权
    Magnetic tape loading mechanism and method 失效
    磁带装载机理及方法

    公开(公告)号:US4899235A

    公开(公告)日:1990-02-06

    申请号:US152377

    申请日:1988-02-04

    IPC分类号: G11B15/675 G11B15/665

    CPC分类号: G11B15/6653

    摘要: A tape loading mechanism for a video cassette recording apparatus in which a magnetic tape held in the cassette is withdrawn therefrom by a tape loading arm and is wound around a rotary cylinder. During this time, the cassette is fixed on the upper surface of a chassis having a cam bore, which is driven by a rotary arm in which a pin inserted in the cam bore is set up. This cam bore is provided with a first cam surface having a radius of curvature equal to that of a locus of a turning movement of the pin, a second cam surface formed continuously from the first cam surface and having a radius of curvature different from that of a locus of a turning movement of the pin, and a third cam surface formed continuously from the second cam surface and having a radius of curvature equal to that of a locus of a turning movement of the pin. Accordingly, the movement of the cassette is started at a predetermined period of time after the movement of the tape loading arm has been started, and it is completed before the movement of the tape loading arm has been completed.

    摘要翻译: 用于盒式录像装置的磁带装载机构,其中保持在磁带盒中的磁带通过磁带装载臂从磁带装载臂中取出并卷绕在旋转磁盘上。 在此期间,盒被固定在具有凸轮孔的底盘的上表面上,该凸轮孔由其中设置有插入凸轮孔中的销的旋转臂驱动。 该凸轮孔设置有第一凸轮表面,其第一凸轮表面的曲率半径等于销的转动运动轨迹的曲率半径,第二凸轮表面从第一凸轮表面连续形成,并且具有与 销的转动轨迹,以及从第二凸轮表面连续地形成的曲率半径等于销的转动轨迹的曲率半径的第三凸轮表面。 因此,在磁带装载臂的移动已经开始之后的预定时间段开始磁带盒的移动,并且在磁带装载臂的移动已经完成之前完成。