Disk cartridge with judging recesses
    2.
    发明授权
    Disk cartridge with judging recesses 失效
    具有判断凹槽的磁盘盒

    公开(公告)号:US5923509A

    公开(公告)日:1999-07-13

    申请号:US530430

    申请日:1995-09-19

    摘要: A disk cartridge (21) for loading on a flat tray (1) included in a disk loading apparatus. Recesses (29) are provided on the back side of the disk cartridge near the rear end (27a) thereof, and projections (16) are provided on the tray for judging whether the disk cartridge is loaded properly on the tray. In addition, notches (30) are formed on the right (27d) and left (27c) sides of the disk cartridge between the recesses and the rear end thereof for engagement with an automatic cartridge-changer.

    摘要翻译: 一种用于装载在包括在盘装载装置中的平板托盘(1)上的盘盒(21)。 在盘盒的后端(27a)的后侧设置有凹部(29),并且在托盘上设置突起(16),以判断盘盒是否正确地装载在托盘上。 此外,凹槽(30)形成在盘盒的右(27d)和左(27c)侧之间的凹部和其后端之间,以与自动墨盒更换器接合。

    Liquid crystal compound
    3.
    发明授权
    Liquid crystal compound 失效
    液晶复合物

    公开(公告)号:US5891359A

    公开(公告)日:1999-04-06

    申请号:US899361

    申请日:1992-06-16

    IPC分类号: C07C69/76 C09K19/02 C09K19/32

    摘要: The novel liquid crystal compounds of the present invention are represented by the following formulas �I!-�II! and have tristable molecular orientation states and can be used for display devices and electrooptical devices. ##STR1## wherein R.sub.1 represents an alkyl group of 5-18 carbon atoms; R.sub.2 represents an alkyl group of 6-16 carbon atoms; R.sub.3 represents an alkyl group of 8-18 carbon atoms; R.sub.4 represents an alkyl group of 6-14 carbon atoms; Y represents ##STR2## and * indicates an optically active center.

    摘要翻译: 本发明的新型液晶化合物由下式[I] - [II]表示,具有三重分子取向状态,可用于显示装置和电光装置。 其中R 1表示5-18个碳原子的烷基; R 2表示6-16个碳原子的烷基; R3代表8-18个碳原子的烷基; R4代表6-14个碳原子的烷基; Y表示,*表示光学活动中心。

    Apparatus for driving stepping motor
    5.
    发明授权
    Apparatus for driving stepping motor 失效
    用于驱动步进电机的装置

    公开(公告)号:US5825151A

    公开(公告)日:1998-10-20

    申请号:US529513

    申请日:1995-09-18

    IPC分类号: H02P8/14 H02K29/04

    CPC分类号: H02P8/14

    摘要: According to the present invention, a stepping motor driving apparatus having a rotor and a stator in n (an integer equal to or larger than 2) phases for moving a moving body is provided. The stepping motor driving apparatus includes a driver for selectively supplying to the stator a first current pattern for rotating the rotor at a first pitch and a second current pattern for rotating the rotor at a second pitch different from the first pitch based on a drive switching signal. The driver switches the first current pattern and the second current pattern at a point where a torque generated by the first current pattern is equal to a torque generated by the second current pattern and supplies the first current pattern or the second current pattern to the stator.

    摘要翻译: 根据本发明,提供一种具有用于移动移动体的n(整数等于或大于2)的转子和定子的步进电动机驱动装置。 步进电动机驱动装置包括:驱动器,用于选择性地向定子供给用于以第一节距旋转转子的第一电流模式和用于基于驱动切换信号以不同于第一音调的第二音调旋转转子的第二电流模式 。 驱动器在由第一电流模式产生的转矩等于由第二电流模式产生的转矩的点处切换第一电流模式和第二电流模式,并将第一电流模式或第二电流模式提供给定子。

    Recording and reproducing apparatus
    8.
    发明授权
    Recording and reproducing apparatus 失效
    记录和再现设备

    公开(公告)号:US5878013A

    公开(公告)日:1999-03-02

    申请号:US710541

    申请日:1996-09-19

    摘要: It is an object of the invention to present a recording and reproducing apparatus capable of mounting a bare disk and a cartridge selectively on a tray, without dropping from the tray in vertical position.To achieve the object, the invention comprises a turntable engaged with a disk for supporting the disk on a recording and reproducing position, a pickup for moving on the surface of the disk to record a signal in the disk or to reproduce a signal from the disk, and a flat tray for transferring between an engagement position with the turntable and a disk exchange position while holding the disk in a position so that its side may be at least in vertical position,wherein the tray possesses a first disk engaging portion freely movable in a tray transfer direction, being thrust in a disk exchange position direction of the tray, for detachably supporting the peripheral edge of the disk or one side of a cartridge, and a second disk engaging portion having a state of holding the peripheral edge of the disk together with the first disk engaging portion in a vertical position of the side of the disk, and a state of sinking into a holding surface, on the holding surface, and the holding surface possesses a cartridge mounting portion for detachably holding a cartridge incorporating a disk.

    摘要翻译: 本发明的目的是提供一种能够将裸盘和盒选择性地安装在托盘上的记录和再现装置,而不会在垂直位置从托盘掉落。 为了实现该目的,本发明包括与盘相啮合的转台,用于将盘支撑在记录和再现位置,拾取器用于在盘的表面上移动以在盘中记录信号或从盘再现信号 以及用于在与转台的接合位置和盘更换位置之间传送的平盘,同时将盘保持在使其侧面可以至少在垂直位置的位置,其中托盘具有可自由移动的第一盘接合部分 托盘传送方向被推动在托盘的盘更换位置方向上,用于可拆卸地支撑盘的周边边缘或盒的一侧;以及第二盘接合部分,其具有保持盘的周边边缘的状态 与第一盘接合部分在盘的侧面的垂直位置以及在保持表面上沉入保持表面的状态以及保持表面 具有用于可拆卸地保持结合有盘的盒的盒安装部。

    Liquid crystal compounds
    10.
    发明授权
    Liquid crystal compounds 失效
    液晶化合物

    公开(公告)号:US5262086A

    公开(公告)日:1993-11-16

    申请号:US903953

    申请日:1992-06-26

    CPC分类号: C09K19/0266 C09K19/2021

    摘要: (R)- and (S)-enantiomer composition represented by the formula (I) having sufficient high optical purity for exhibiting optically tristable states in S*(3) phase; ##STR1## wherein Ra means a C.sub.5 -C.sub.14 alkyl group or a C.sub.5 -C.sub.14 alkoxy group, preferably a C.sub.5 -C.sub.14 alkyl group, Rb means a C.sub.4 -C.sub.12 normal alkyl group or a C.sub.4 -C.sub.12 branched alkyl group, X means a ##STR2## group or a ##STR3## group, Z means a fluorine containing alkyl group, preferably a trifluoromethyl group and * shows an optically active carbon.

    摘要翻译: (I)表示的(S) - 对映异构体组合物具有足够高的光学纯度以在S *(3)相中显示光学三态状态; (I)其中R a表示C 5 -C 14烷基或C 5 -C 14烷氧基,优选C 5 -C 14烷基,R b表示C 4 -C 12正烷基或C 4 -C 12支链烷基,X 表示组或组,Z表示含氟烷基,优选三氟甲基,*表示光学活性碳。