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1. 发明授权

US4995497A Coin discrimination apparatus 失效
标题翻译：硬币识别装置
公开(公告)号：US4995497A
公开(公告)日：1991-02-26
申请号：US68563
申请日：1987-06-30
申请人： Osamu Kai , Masaaki Tsukada , Hiroshi Tachibana
发明人： Osamu Kai , Masaaki Tsukada , Hiroshi Tachibana
IPC分类号： G07D5/08 , G07D11/00
CPC分类号： G07D5/08 , G07D5/02
摘要： A coin discrimination apparatus discriminates authenticity and a denomination of a coin by oscillation magnetic fields of high and low frequencies in a low frequency band in which generated magnetic fluxes allow a coin to pass therethrough. A first oscillation coil for generating an oscillation magnetic field of a low frequency and a reception coil are arranged at coin contact and coin non-contact surfaces, respectively, of an inclined coin path to face each other. A second oscillation coil is arranged on the coin non-contact surface to be separated from the reception coil by a predetermined distance in a coin rolling direction and generates an oscillation magnetic field of a high frequency. The coin discrimination apparatus includes a first sensor circuit for detecting maximum values of changes in impedances of the oscillation coils and the reception coil upon passage of a coin, a second sensor circuit for detecting the changes in impedances when the changes in impedances of the first and second oscillation coils coincide with each other, and a CPU for discriminating authenticity and the denomination of the coin based on coin physical characteristics in accordance with the detection results from the sensor circuits.
摘要翻译：硬币识别装置通过产生的磁通量允许硬币通过的低频带中的高频和低频振荡磁场来鉴别硬币的真实性和币值。用于产生低频振荡磁场的第一振荡线圈和接收线圈分别布置在倾斜硬币路径的硬币接触和硬币非接触表面上以彼此面对。第二振荡线圈布置在硬币非接触表面上，以在硬币滚动方向上与接收线圈分开预定距离，并产生高频振荡磁场。硬币识别装置包括：第一传感器电路，用于检测在硬币通过时振荡线圈和接收线圈的阻抗变化的最大值;第二传感器电路，用于检测当第一和第二阻抗变化时的阻抗变化; 第二振荡线圈彼此重合，以及CPU，用于根据来自传感器电路的检测结果，基于硬币物理特性鉴别硬币的真实性和面额。

2. 发明授权

US4811386A Called party response detecting apparatus 失效
标题翻译：被叫方响应检测装置
公开(公告)号：US4811386A
公开(公告)日：1989-03-07
申请号：US81306
申请日：1987-08-03
申请人： Yoshiki Sano , Masaaki Tsukada
发明人： Yoshiki Sano , Masaaki Tsukada
IPC分类号： H04M17/00 , H04M11/00 , H04M15/30 , H04M17/02 , H04Q1/444
CPC分类号： H04M17/023 , H04M15/30 , H04Q1/444
摘要： A called party response detecting apparatus includes a plurality of filter units for respectively detecting natural frequency components included in a plurality of signals sent from a telephone line. The apparatus also includes switching units for switching input levels of the filter units in a plurality of steps and a continuous signal detector for detecting that a logical sum output from the filter units has continued for a predetermined interval of time. An input level control unit operates to control the switching units to set an input level at a lowest level while waiting for a signal and also to reset the input level at a predetermined level different from the lowest level when an output is obtained from one of the filter units. During this reset operation, the input level control unit decreases the input level in steps until an output is obtained from the continuous signal detector. The apparatus further includes a discriminator for determining, when the continuous signal detector continuously detects logical sum outputs from the filter units for the predetermined time, a plurality of signal tones and a called party response in accordance with the frequency pattern of the outputs from the filter units within the predetermined time.
摘要翻译：被叫方响应检测装置包括多个滤波器单元，用于分别检测包括在从电话线路发送的多个信号中的固有频率分量。该装置还包括用于以多个步骤切换滤波器单元的输入电平的开关单元和用于检测从滤波器单元输出的逻辑和输出持续预定时间间隔的连续信号检测器。输入电平控制单元操作以控制切换单元在等待信号的同时将输入电平设置在最低电平，并且当从其中一个获得输出时，将输入电平重置为与最低电平不同的预定电平过滤器单元。在该复位操作期间，输入电平控制单元逐步降低输入电平，直到从连续信号检测器获得输出。该装置还包括鉴别器，用于当连续信号检测器连续检测来自滤波器单元的预定时间的逻辑和输出时，根据来自滤波器的输出的频率模式，确定多个信号音调和被叫方响应单位在预定时间内。

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