Cyclohexylphenylpyridazines
    3.
    发明授权
    Cyclohexylphenylpyridazines 失效
    环己基苯基哒嗪

    公开(公告)号:US4818429A

    公开(公告)日:1989-04-04

    申请号:US95111

    申请日:1987-09-11

    CPC分类号: C07D237/14 C09K19/3455

    摘要: A compound useful as a component constituting ferroelectric liquid crystal display elements and a liquid crystal composition containing the same are provided, which compound is expressed by the formula ##STR1## wherein R represents a linear or branched chain alkyl group of 1 to 20 carbon atoms and R* represents an optically active alkyl group, alkoxy group, alkoxyalkyl group, alkoxyalkoxy group, alkanoyloxyalkyl group, alkanoyloxyalkoxy group, halogenated alkyl group or halogenated alkoxy group each of 2 to 20 carbon atoms.

    摘要翻译: 提供了可用作构成铁电液晶显示元件的组分的化合物和含有该化合物的液晶组合物,该化合物由式(I)表示,其中R表示1至20的直链或支链烷基 碳原子,R *表示2〜20个碳原子的光学活性烷基,烷氧基,烷氧基烷基,烷氧基烷氧基,烷酰氧基烷基,烷酰氧基烷氧基,卤代烷基或卤代烷氧基。

    Mobile station position estimation scheme for cellular mobile communication system
    4.
    发明授权
    Mobile station position estimation scheme for cellular mobile communication system 失效
    蜂窝移动通信系统的移动台位置估计方案

    公开(公告)号:US06181944B2

    公开(公告)日:2001-01-30

    申请号:US09041764

    申请日:1998-03-13

    IPC分类号: H04Q720

    CPC分类号: H04W64/00 G01S5/14

    摘要: A mobile station position estimation scheme for a cellular mobile communication system which is capable of estimating a position of a mobile station in a simple manner even in the general cellular mobile communication systems in which base stations are not synchronized. According to this mobile station position estimation scheme, a first signal sequence and a second signal sequence which are uniquely predetermined for the mobile station are exchanged between the mobile station and the base station, and then a position of the mobile station is estimated at one station among the base station and the mobile station, by obtaining a phase difference between the first signal sequence and the second signal sequence and calculating an estimated distance between the base station and the mobile station according to the phase difference.

    摘要翻译: 一种用于蜂窝移动通信系统的移动台位置估计方案,其能够以简单的方式估计移动站的位置,即使在基站不同步的一般蜂窝移动通信系统中。 根据该移动台位置估计方式,在移动台与基站之间交换为移动台唯一预定的第一信号序列和第二信号序列,然后在一个站点估计移动站的位置 在基站和移动台之间,通过获得第一信号序列与第二信号序列之间的相位差,并根据相位差计算基站与移动台之间的估计距离。

    Scheme for intermittent reception of paging signals in mobile
communication system
    5.
    发明授权
    Scheme for intermittent reception of paging signals in mobile communication system 失效
    移动通信系统间歇接收寻呼信号的方案

    公开(公告)号:US6138001A

    公开(公告)日:2000-10-24

    申请号:US814363

    申请日:1997-03-11

    摘要: A scheme for intermittent reception of paging signals in a mobile communication system, in which each base station repeatedly transmits a frame which contains: at least one regular reception section having a plurality of paging indication regions provided in corresponding to a plurality of groups, in which a paging presence information for indicating a presence of a paging with respect to a mobile station of a group is set in a paging indication region corresponding to that group when a paging with respect to a mobile station of that group occurs; and a mobile station alerting section having a plurality of identification information setting regions provided in correspondence to a plurality of paging indication regions, in which an identification information of a mobile station called by a paging indicated by a paging indication region is set in an identification information setting region corresponding to that paging indication region. Each mobile station receives this frame by operating a receiver circuit intermittently.

    摘要翻译: 一种在移动通信系统中间歇地接收寻呼信号的方案,其中每个基站重复发送一个帧,该帧包括:具有对应于多个组的多个寻呼指示区域的至少一个规则接收部分,其中 当发生相对于该组的移动台的寻呼时,在与该组相对应的寻呼指示区域中设置用于指示对于组的移动台的寻呼的存在的寻呼存在信息; 以及移动台提醒部,具有与多个寻呼指示区域对应地设置的多个识别信息设定区域,其中通过由寻呼指示区域指示的寻呼所呼叫的移动站的识别信息被设置在识别信息中 设置区域对应于该寻呼指示区域。 每个移动台通过间歇地操作接收机电路来接收该帧。

    Fluoroalkoxydiphenyl pyrimidine, liquid crystal composition and
electro-optic element
    7.
    发明授权
    Fluoroalkoxydiphenyl pyrimidine, liquid crystal composition and electro-optic element 失效
    氟烷氧基二苯基嘧啶,液晶组合物和电光元件

    公开(公告)号:US4963288A

    公开(公告)日:1990-10-16

    申请号:US326033

    申请日:1989-03-20

    CPC分类号: C07D239/26 C09K19/3463

    摘要: New fluoroalkoxydiphenyl pyrimidines which are organic compounds having optically active groups, liquid crystal compositions containing the said compounds and electro-optic elements using the said compositions are provided.The compounds have the following general formula: ##STR1## wherein R.sup.1 is an alkyl or alkoxy group having 1-20 carbon atoms, a halogen atom or a cyano group, R.sup.2 is a straight-chain or branched chain alkyl group having 1-15 carbon atoms, --A-- is a group of ##STR2## X and Y independently indicate a hydrogen atom, a halogen atom or a cyano group, and * indicates that its carbon atom is an asymmetric carbon atom.

    摘要翻译: 提供了具有光学活性基团的新的氟烷氧基二苯基嘧啶,含有所述化合物的液晶组合物和使用所述组合物的电光元件。 该化合物具有以下通式:其中R1是具有1-20个碳原子的烷基或烷氧基,卤原子或氰基,R2是具有1个碳原子的直链或支链烷基 -15个碳原子,-A-是一组X,Y和Y独立地表示氢原子,卤素原子或氰基,*表示其碳原子是不对称碳原子。

    Image projection apparatus
    9.
    发明授权

    公开(公告)号:US10230930B2

    公开(公告)日:2019-03-12

    申请号:US15813921

    申请日:2017-11-15

    申请人: Kouji Ohno

    发明人: Kouji Ohno

    摘要: An image projection apparatus includes an image generation element to form an image using light emitted from a light source, a shift unit to shift a position of the image generation element when a pixel shift mode is set, circuitry to generate, when the pixel shift mode is set, images used for the pixel shift mode based on image data input to the image projection apparatus, perform keystone correction processing to the generated images, and cause the processed images to be projected as the image by reciprocally shifting the position of the image generation element, or to perform, when the pixel shift mode is not set, the keystone correction processing to image data input to the image projection apparatus to generate an image applied with the keystone correction processing, and project the generated image without shifting the position of the image generation element.

    Method of perch channel transmission and cell selection in CDMA mobile communication system
    10.
    发明授权
    Method of perch channel transmission and cell selection in CDMA mobile communication system 失效
    CDMA移动通信系统中导频信道传输和小区选择的方法

    公开(公告)号:US06314090B1

    公开(公告)日:2001-11-06

    申请号:US08869255

    申请日:1997-06-04

    IPC分类号: H04L1228

    CPC分类号: H04W48/20 Y02D70/00

    摘要: A perch channel transmission and cell selection method for a CDMA mobile communication system which is capable increasing a system capacity by reducing an amount of interference power. In this method, each base station intermittently transmits a perch channel which is spread by using a spread code assigned to each base station. Then, a mobile station receives more than one perch channels transmitted from more than one base stations, measures a receiving level of an intermittently transmitted portion of each received perch channel, and judges a located cell according to measured receiving levels of these more than one perch channels.

    摘要翻译: 一种用于CDMA移动通信系统的导频信道传输和小区选择方法,其能够通过减少干扰功率的量来增加系统容量。 在该方法中,每个基站间歇地发送通过使用分配给每个基站的扩展码进行扩展的导频信道。 然后,移动站接收从多个基站发送的多于一个导频信道,测量每个接收到的导频信道的间歇发送部分的接收电平,并且根据这些多个基带的测量接收电平来判断所定位的小区 频道