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    • 22. 发明授权
    • Communication device with automatic signal discrimination and method
therefor
    • 具有自动信号鉴别的通信装置及其方法
    • US5805679A
    • 1998-09-08
    • US623415
    • 1996-03-28
    • Kazuhiro Kuwabara
    • Kazuhiro Kuwabara
    • H04M1/663H04M11/00H04N1/32
    • H04N1/32005H04M1/663
    • A facsimile device stores a list of a caller ID (i.e., telephone number of the calling station) and a signal reception procedure to be used for receiving signal transmitted from the calling station. If the signal reception procedure on the list does not correspond to the transmitted signal, an appropriate reception procedure is determined based on the transmitted signal, and the list is updated. The updated list is used for the next calling from the calling station. If the calling station is not on the list, the signal reception procedure is determined based on the transmitted signal, and the telephone number and corresponding reception procedure is registered in the list.
    • 传真设备存储呼叫者ID的列表(即呼叫站的电话号码)和用于接收从呼叫站发送的信号的信号接收过程。 如果列表中的信号接收过程不对应于所发送的信号,则根据发送的信号确定适当的接收过程,并更新列表。 更新的列表用于来自呼叫站的下一个呼叫。 如果呼叫站不在列表中,则基于所发送的信号确定信号接收过程,并且将电话号码和相应的接收过程登记在列表中。
    • 25. 发明授权
    • Optical change-over switch utilizing ferroelectric liquid crystal
material
    • 利用铁电液晶材料的光转换开关
    • US4836657A
    • 1989-06-06
    • US940491
    • 1986-12-10
    • Yasuhiro GunjiSadayuki OkadaMasato IsogaiKatsumi KondoMasahiko IbamotoKazuhiro KuwabaraAtsushi Kanke
    • Yasuhiro GunjiSadayuki OkadaMasato IsogaiKatsumi KondoMasahiko IbamotoKazuhiro KuwabaraAtsushi Kanke
    • G02F1/1333G02F1/141
    • G02F1/1326G02F1/141
    • The liquid crystal cell (30) for the optical change-over switch comprises a pair of transparent substrates (1), a pair of transparent flat electrodes (2) provided on the respective opposing surfaces of the substrates, orientation control films (3) provided on the flat electrodes (2), two pair of comb shaped electrodes (33) respectively provided on the orientation control films (3), and a ferroelectric liquid crystal layer (4) confined between the substrates (1). The optical incidence plane (31) to the cell (30) is so selected that the plane (31) is away from the helical axes (9) of the ferroelectric liquid crystal in the cell (30) in the order of somewhat greater than the tilt angle (.theta..sub.t) of the ferroelectric liquid crystal. The pair of flat electrodes (2) generate a first electric field (37a) perpendicular to the layer (32) and orient the long axes of the ferroelectric liquid crystal molecules into a first orientation (35a') parallel to the layer (32 ) to induce a first refractive index which causes simultaneous reflection of unpolarized light beam (7+8) with a predetermined incidence angle (.theta.). The two pair of comb shaped electrodes (33) generate a second electric field (37b') parallel to the layer and perpendicular to the helical axes (9) and orient the long axes of the molecules into a second orientation (35b') not in parallel to the layer (32) to induce a second refractive index which causes simultaneous transmission of the unpolarized light beam (7+8) with the predetermined incidence angle (.theta.).
    • 用于光转换开关的液晶单元(30)包括一对透明基板(1),设置在基板的相应相对表面上的一对透明平板电极(2),提供定向控制膜 在平面电极(2)上,分别设置在取向控制膜(3)上的两对梳状电极(33)和限制在基板(1)之间的铁电液晶层(4)。 选择细胞(30)的光入射平面(31),以使得平面(31)以略大于细胞(30)的大小的顺序远离细胞(30)中的铁电液晶的螺旋轴(9) 铁电液晶的倾斜角(θt)。 一对扁平电极(2)产生垂直于层(32)的第一电场(37a),并将铁电液晶分子的长轴定向成与层(32)平行的第一取向(35a')至 诱导第一折射率,其引起非偏振光束(7 + 8)以预定入射角(θ)的同时反射。 两对梳状电极(33)产生平行于该层并垂直于螺旋轴(9)的第二电场(37b'),并使分子的长轴定向成不在第二取向(35b') 平行于层(32)以诱导第二折射率,其引起非偏振光束(7 + 8)以预定入射角(θ)的同时透射。