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71. 发明授权

US4545651A Optical system for synthesizing plural light beams 失效
标题翻译：用于合成多个光束的光学系统
公开(公告)号：US4545651A
公开(公告)日：1985-10-08
申请号：US454869
申请日：1982-12-30
申请人： Kiichi Kato , Masaharu Sakamoto
发明人： Kiichi Kato , Masaharu Sakamoto
IPC分类号： G02B27/10 , G02B27/28 , G11B7/08 , G11B7/12 , G11B7/135 , G11B7/1359 , G11B7/1392 , G11B7/1398 , G02B5/30
CPC分类号： G11B7/1398 , G02B27/1006 , G02B27/14 , G02B27/144 , G02B27/28 , G11B7/08 , G11B7/1359 , G11B7/13922
摘要： In an optical system for synthesizing a plurality of light beams, a first light beam of parallel light rays emitted from a laser beam source is incident on an inclined face of a right angle prism through the prism. A second light beam of parallel light rays emitted from a laser beam source is incident to the inclined face at a predetermined angle of incidence. The first light beam is emitted to the inclined face at an angle of incidence equal to a critical angle so that the first light beam is totally inflected by the inclined face and transmitted in a predetermined direction. The second light beam is refracted at an angle of refraction substantially equal to the Brewster's angle, and then transmitted in a direction which defines a predetermined angular difference with the predetermined direction of the first light beam. A multi-layered film is formed on the inclined face. The film makes the angle of refraction of the second light beam approach the critical angle, so as to reduce the angular difference from that which would exist in the absence of the film.
摘要翻译：在用于合成多个光束的光学系统中，从激光束源发射的平行光线的第一光束通过棱镜入射到直角棱镜的倾斜面上。从激光束发射的平行光线的第二光束以预定的入射角入射到倾斜面。第一光束以等于临界角的入射角发射到倾斜面，使得第一光束被倾斜面完全折射并沿预定方向透射。第二光束以基本上等于布鲁斯特角的折射角折射，然后沿与第一光束的预定方向限定预定角度差的方向透射。在倾斜面上形成多层膜。该胶片使第二光束的折射角接近临界角，从而减小与不存在胶片时所存在的角度差。

72. 发明授权

US4539697A FM Stereo demodulating circuit 失效
标题翻译： FM立体声解调电路
公开(公告)号：US4539697A
公开(公告)日：1985-09-03
申请号：US529773
申请日：1983-09-06
申请人： Kohji Ishida , Tatsuo Numata , Masaharu Sakamoto
发明人： Kohji Ishida , Tatsuo Numata , Masaharu Sakamoto
IPC分类号： H03D1/22 , H04B1/16 , H04H1/00 , H04H40/45 , H04H40/54 , H04H5/00
CPC分类号： H04H40/54 , H03D1/2236 , H04B1/1646
摘要： An FM stereo demodulating circuit comprising a pulse counter detector 1 for generating a pulse train signal including the frequency spectrum of the FM signal, DC biasing means for current biasing the detector output about a midpoint, a subcarrier signal generator 2 and current drivers 8, 10 for generating dual polarity biased subcarrier currents, first and second transistor pairs 3, 4, the emitters of each being connected to one of the current drivers, and the bases of the pairs being cross-connected to one of the biased detector outputs, at least one reference transistor pair whose emitters are connected to a current source 11 and whose collectors are connected to each of the biased detector outputs. The currents entering the cross-connected collectors of the first and second transistor pairs, when referenced against the currents into the emitters of the reference transistor pair, produce signals proportional to the right and left channels of the FM signal.
摘要翻译：一种FM立体声解调电路，包括用于产生包括FM信号的频谱的脉冲串信号的脉冲计数器检测器1，用于电流偏置关于中点的检测器输出的DC偏置装置，副载波信号发生器2和电流驱动器8,10 为了产生双极性偏置子载波电流，第一和第二晶体管对3,4，每个的发射极连接到电流驱动器中的一个，并且对的基极至少与偏置的检测器输出之一交叉连接一个参考晶体管对，其发射极连接到电流源11，并且其集电极连接到每个偏置的检测器输出。当参考相对于参考晶体管对的发射极的电流时，进入第一和第二晶体管对的交叉集电极的电流产生与FM信号的右通道和左通道成比例的信号。

73. 外观设计

USD280033S Vacuum cleaner 失效
公开(公告)号：USD280033S
公开(公告)日：1985-08-06
申请号：US530828
申请日：1983-09-09
申请人： Isshin Miyamoto , Yasuo Nagamatsu , Toshiya Moriyama , Masaharu Sakamoto
设计人： Isshin Miyamoto , Yasuo Nagamatsu , Toshiya Moriyama , Masaharu Sakamoto

74. 外观设计

USD278444S Typewriter 失效
公开(公告)号：USD278444S
公开(公告)日：1985-04-16
申请号：US478583
申请日：1983-03-24
申请人： Ishin Miyamoto , Yasuo Nagamatsu , Toshiya Moriyama , Masaharu Sakamoto
设计人： Ishin Miyamoto , Yasuo Nagamatsu , Toshiya Moriyama , Masaharu Sakamoto

75. 外观设计

USD278247S Typewriter 失效
公开(公告)号：USD278247S
公开(公告)日：1985-04-02
申请号：US478586
申请日：1983-03-24
申请人： Ishin Miyamoto , Yasuo Nagamatsu , Toshiya Moriyama , Masaharu Sakamoto
设计人： Ishin Miyamoto , Yasuo Nagamatsu , Toshiya Moriyama , Masaharu Sakamoto

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