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    • 10. 发明授权
    • Payphone electronic coin validator
    • 付款电话电子硬币验证器
    • US06370242B1
    • 2002-04-09
    • US09490216
    • 2000-01-24
    • Robert SpeersPaul Allen
    • Robert SpeersPaul Allen
    • H04M1700
    • H04M17/026H04M17/02H04M17/023
    • An electronic coin validator for connection to a payphone chassis is described. The validator includes a coin passageway having at least one coin sensor, power circuitry for connection to payphone chassis power lines and connected to the coin sensor, a validator line balance circuit connected to the power circuitry, at least one coin signal line for connection to the payphone chassis, at least one coin value buffer, and a control means. The control means processes signals from the sensor to validate coins, adjusts the count in the coin value buffer when a coin is validated, and readjusts the count when corresponding coin credit signals are generated for transmission. The validator line balance circuit has an output for connection to the payphone chassis, and equalizes the loading on the telephone lines to minimize impedance fluctuations. Consequently, coins may be validated and accepted by the electronic coin validator as coin tones are being generated and transmitted by circuitry of the payphone chassis to a central office.
    • 描述了用于连接到付费电话机箱的电子硬币验证器。 验证器包括具有至少一个硬币传感器的硬币通道,用于连接到投币电话机箱电源线并连接到硬币传感器的电源电路,连接到电源电路的验证器线路平衡电路,用于连接到硬币传感器的至少一个硬币信号线 至少一个硬币值缓冲器和控制装置。 控制装置处理来自传感器的信号以验证硬币,当硬币被确认时调整硬币值缓冲器中的计数,并且当产生用于发送的相应硬币信用信号时重新调整计数。 验证器线路平衡电路具有用于连接到付费电话机箱的输出,并且平衡电话线上的负载以最小化阻抗波动。 因此,硬币可由电子硬币验证器验证并被接收,因为硬币音是由投币电话机机箱的电路产生并发送到中心局。