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101. 发明授权

US4882495A Scintillation camera 失效
标题翻译：闪烁相机
公开(公告)号：US4882495A
公开(公告)日：1989-11-21
申请号：US188173
申请日：1988-04-26
申请人： Masatoshi Tanaka
发明人： Masatoshi Tanaka
IPC分类号： G01T1/164
CPC分类号： G01T1/1642
摘要： In a scintillation camera having a scintillator, a plurality of photomultiplier tubes optically coupled with the scintillator for converting light flashes into electric signals, and a position calculating circuit for calculating incident positions of radioactive rays on the scintillator to produce a position signal indicative of the position of each photomultiplier tube and a display signal, a photomultiplier tube changeover circuit for determining in response to the position signal which one of the photomultiplier tubes has been just irradiated with radiation rays and for outputting output signals only from each photomultiplier tube, an averaging circuit for taking an arithmetical average of the output signals with respect to a predetermined number of the output signals to thereby obtain an average thereof, a correction value calculating circuit for detecting a variation in the sensitivity of each photomultiplier tube by comparing the averaged magnitude of the output signals from the averaging circuit with a reference value determined by the energy of the incident radioactive rays to thereby calculate a correction value for each photomultiplier tube: and a photomultiplier tube correcting circuit for controlling a voltage applied to each photomultiplier tube to thereby automatically adjust the sensitivity of each of the photomultiplier tubes.
摘要翻译：在具有闪烁体的闪烁照相机中，将与闪烁体光学耦合的多个光电倍增管用于将光转换为电信号的位置计算电路，以及用于计算闪烁体上的放射线的入射位置以产生指示位置的位置信号的位置计算电路的光电倍增管和显示信号，光电倍增管切换电路，用于根据位置信号确定光电倍增管中的哪一个刚刚用辐射线照射，并仅用于从每个光电倍增管输出输出信号;平均电路，对预定数量的输出信号进行输出信号的算术平均，从而获得其平均值;校正值计算电路，用于通过比较输出信号的平均幅度来检测每个光电倍增管的灵敏度变化来自平均电路，其具有由入射的放射线的能量确定的参考值，从而计算每个光电倍增管的校正值;以及光电倍增管校正电路，用于控制施加到每个光电倍增管的电压，从而自动调节每个光电倍增管的灵敏度光电倍增管。

102. 外观设计

USD286521S Motorcycle 失效
公开(公告)号：USD286521S
公开(公告)日：1986-11-04
申请号：US655908
申请日：1984-09-28
申请人： Masatoshi Tanaka , Shoichi Kuwahata
设计人： Masatoshi Tanaka , Shoichi Kuwahata

103. 发明授权

US4209672A Method and apparatus for measuring characteristics of a loudspeaker 失效
标题翻译：用于测量扬声器特性的方法和装置
公开(公告)号：US4209672A
公开(公告)日：1980-06-24
申请号：US924357
申请日：1978-07-13
申请人： Tsuneo Nitta , Masatoshi Tanaka
发明人： Tsuneo Nitta , Masatoshi Tanaka
IPC分类号： H04R29/00
CPC分类号： H04R29/001
摘要： A loudspeaker and a microphone are arranged in a normal room, the loudspeaker being supplied with an impulse signal. A direct response sound from the loudspeaker and reflected sounds from wall surfaces in three directions of the normal room are converted into a response signal by the microphone. The response signal is A/D-converted, and then Fourier-transformed. The Fourier-transformed response signal is converted into a response signal with an absolute value, and then into a logarithmic response signal. The logarithmic response signal is filtered to eliminate signal components corresponding to the reflected sound. The filtered logarithmic response signal is A/D-converted, and supplied to a recorder.
摘要翻译：扬声器和麦克风布置在正常的房间中，扬声器被提供脉冲信号。来自扬声器的直接响应声音和来自正常房间三个方向的墙壁表面的反射声音被麦克风转换成响应信号。响应信号进行A / D转换，然后进行傅里叶变换。傅里叶变换的响应信号被转换为具有绝对值的响应信号，然后转换成对数响应信号。对数响应信号被滤波以消除对应于反射声的信号分量。经滤波的对数响应信号进行A / D转换，并提供给记录器。

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