Alarm signal generation device for a vehicle
    91.
    发明授权
    Alarm signal generation device for a vehicle 失效
    用于车辆的超声报警信号发生装置

    公开(公告)号:US5483219A

    公开(公告)日:1996-01-09

    申请号:US178561

    申请日:1994-01-07

    IPC分类号: B60R25/31 B60R25/10 G08B13/16

    CPC分类号: B60R25/1009 B60R25/1018

    摘要: It is an object of the invention to provide a vehicle alarm signal generation device which can realize the reduction of the consumption of power without unstabilizing the intruder detect operation. The vehicle alarm signal generation device includes a supersonic sensor which comprises a supersonic transmitter and a supersonic receiver. The supersonic transmitter radiates supersonic waves in the interior of a vehicle and the radiated supersonic waves are received by the supersonic receiver. If any person intrudes on the vehicle interior, then there is produced a difference between the frequencies of the radiated and received supersonic waves due to the Doppler effect generated responsive to the movements of the intruder, so that a beat frequency signal corresponding to the frequency difference is included in a signal received by the supersonic receiver. The beat frequency signal is integrated by an integrating circuit and is then converted into a voltage signal. A control circuit is arranged such that it generates an alarm signal when the voltage signal arrives at or goes beyond a reference level. The control circuit drives the supersonic sensor intermittently, invalidates the voltage signal for a given time after it starts the driving of the sensor and, after lapse of the invalidated time of the voltage signal, switches the supersonic sensor into its successive driving condition when the voltage signal reaches or exceeds an auxiliary reference level lower than the reference level.

    摘要翻译: 本发明的目的是提供一种车辆报警信号发生装置,其可以在不使入侵者检测操作不稳定的情况下实现功率消耗的降低。 车辆报警信号发生装置包括超音速传感器,其包括超音速发射机和超音速接收机。 超音速发射器在车辆内部辐射超声波,并且超声波接收器接收辐射超声波。 如果任何人入侵车辆内部,则由于响应于入侵者的运动而产生的多普勒效应,产生了辐射和接收的超声波的频率之间的差异,使得对应于频率差的拍频信号 被包含在由超声波接收机接收的信号中。 拍频信号由积分电路积分,然后转换为电压信号。 控制电路布置成当电压信号到达或超过参考电平时产生报警信号。 控制电路间歇地驱动超音速传感器,在开始驱动传感器之后的给定时间使电压信号无效,并且在电压信号的无效时间过去之后,当超声波传感器的电压 信号达到或超过比参考电平低的辅助参考电平。

    Method of manufacturing aminogroup-containing polysiloxanes of uniform
quality
    92.
    发明授权
    Method of manufacturing aminogroup-containing polysiloxanes of uniform quality 失效
    制造质量均匀的含氨基聚硅氧烷的方法

    公开(公告)号:US5276122A

    公开(公告)日:1994-01-04

    申请号:US929548

    申请日:1992-08-14

    IPC分类号: C08G77/06 C08G77/26

    CPC分类号: C08G77/26

    摘要: A method of manufacturing aminogroup-containing polysiloxanes of uniform quality characterized in that a cyclic organopolysiloxane represented by the following general formula: ##STR1## and an aminoalkylpolysiloxane represented by the following general formula: ##STR2## are heated together in the presence of a basic catalyst.

    摘要翻译: 一种制造均匀质量的含氨基聚硅氧烷的方法,其特征在于由以下通式表示的环状有机聚硅氧烷(*化学结构*)和由以下通式表示的氨基烷基聚硅氧烷(*化学结构*)在 碱性催化剂的存在。

    Liquid crystal shutter with substrates having an optical anisotropy
caused by temperature gradient
    95.
    发明授权
    Liquid crystal shutter with substrates having an optical anisotropy caused by temperature gradient 失效
    具有由温度梯度引起的光学异质性的基板的液晶切换器

    公开(公告)号:US5054891A

    公开(公告)日:1991-10-08

    申请号:US339187

    申请日:1989-04-14

    摘要: A liquid crystal shutter comprising a light source, a liquid crystal element including a pair of substrates and liquid crystal interposed between the substrates, a pair of polarizing plates formed on the outer surfaces of the substrates, and a heater for heating the liquid crystal element. At least one electrode is formed on the inner surface of either substrate, and an aligning orientating layer is formed on the electrode and the inner surface of the substrate. The polarizing axis of at least one of the polarizing plates extends either parallel or at right angles to the direction of the optical axis of a substrate having an optical anisotropy caused by a temperature gradient created over the liquid crystal element in a direction toward a periphery from a center of the liquid crystal element heated by the heater, and crossing at a certain degree with an arrangement direction of liquid crystal molecules oriented by the aligning orienting layer.

    Dual-frequency, dielectric anisotropy liquid crystal optical device
    96.
    发明授权
    Dual-frequency, dielectric anisotropy liquid crystal optical device 失效
    双频,介电各向异性液晶光学器件

    公开(公告)号:US4946260A

    公开(公告)日:1990-08-07

    申请号:US316221

    申请日:1989-02-24

    IPC分类号: G02F1/133 G02F1/139

    CPC分类号: G02F1/1392

    摘要: An ON electric field for turning on (allowing light transmission) a liquid crystal optical device and an OFF electric field for turning off (shielding light) the liquid crystal optical device are selectively applied to a liquid crystal material of the liquid crystal optical device. The ON electric field is applied so as to obliquely align liquid crystal molecules with respect to substrates constituting the liquid crystal optical device, thereby obtaining an ON state. The ON electric field has an electric field for driving the liquid crystal molecules and a non-electric field for generating a state wherein no electric field is applied to the liquid crystal molecules. The OFF electric field has an electric field for homeotropically aligning the liquid crystal molecules with respect to the substrates.

    Drive method for a dual-frequency, dielectric anisotropy liquid crystal
optical device
    97.
    发明授权
    Drive method for a dual-frequency, dielectric anisotropy liquid crystal optical device 失效
    双频,介电各向异性液晶光学器件的驱动方法

    公开(公告)号:US4836654A

    公开(公告)日:1989-06-06

    申请号:US066720

    申请日:1987-06-24

    IPC分类号: G02F1/133 G02F1/139

    CPC分类号: G02F1/1392

    摘要: An ON electric field for turning on (allowing light transmission) a liquid crystal optical device and an OFF electric field for turning off (shielding light) the liquid crystal optical device are selectively applied to a liquid crystal material of the liquid crystal optical device. The ON electric field is applied so as to obliquely align liquid crystal molecules with respect to substrates constituting the liquid crystal optical device, thereby obtaining an ON state. The ON electric field has an electric field for driving the liquid crystal molecules and a non-electric field for generating a state wherein no electric field is applied to the liquid crystal molecules. The OFF electric field has an electric field for homeotropically aligning the liquid crystal molecules with respect to the substrates.

    摘要翻译: 液晶光学器件的液晶材料选择性地施加用于使液晶光学器件导通(允许光透射)的ON电场和用于关闭(屏蔽光)的OFF电场。 施加ON电场以使液晶分子相对于构成液晶光学器件的基板倾斜取向,从而获得ON状态。 ON电场具有用于驱动液晶分子的电场和用于产生其中没有电场施加到液晶分子的状态的非电场。 OFF电场具有用于使液晶分子相对于基板垂直取向的电场。

    Benzoin group-containing cyclic organopolysiloxanes and a method for the
preparation thereof
    99.
    发明授权
    Benzoin group-containing cyclic organopolysiloxanes and a method for the preparation thereof 失效
    含有苯偶姻基团的环状有机聚硅氧烷及其制备方法

    公开(公告)号:US4337348A

    公开(公告)日:1982-06-29

    申请号:US274631

    申请日:1981-06-17

    摘要: The invention provides a benzoin group-containing cyclic organopolysiloxane, which belongs to a novel class of organosilicon compounds hitherto not known or not described in any prior art literatures. The compound has at least one benzoin group of the formula ##STR1## in which Ph is a phenyl group and R.sup.1 is a hydrogen atom or an alkyl group having from 1 to 4 carbon atoms or, in particular, a methyl group, directly bonded to the silicon atom in the cyclic tri-, tetra-, penta- or hexasiloxane. The compound is useful as a sensitizer for the crosslinking reaction of a photo- or radiation-curable organopolysiloxane composition owing to the high miscibility of the inventive compounds with the organopolysiloxane composition.

    摘要翻译: 本发明提供了一种含苯偶姻基的环状有机聚硅氧烷,其属于迄今为止在任何现有技术文献中未知或未描述的新一类有机硅化合物。 该化合物具有至少一个式“IMAGE”的苯偶姻基团,其中Ph是苯基,R 1是氢原子或具有1至4个碳原子的烷基或特别是甲基,直接键合到 环状三,四,五或六硅氧烷中的硅原子。 由于本发明化合物与有机聚硅氧烷组合物的高混溶性,该化合物可用作光或可辐射固化的有机聚硅氧烷组合物的交联反应的敏化剂。