发明名称 |
Control system for inhibiting processing communications |
摘要 |
A control system is employed to selectively inhibit false signal transmissions between a communications processor and a plurality of peripheral devices during transient power states. The control system includes a comparator which detects a decrease in the unregulated power supply voltage as compared to the regulated voltage to anticipate an impending loss in regulated voltage. In response to a detected drop in unregulated voltage, a transistor interrupts the power supply to communications lines. Simultaneously, the transistor interrupts the power supply to a light source of an optically coupled relay which is employed to actuate a peripheral such as a mailing machine. In order to assure that the communications processor will initiallize after a transitory drop and a recovery in line voltage, a processor reset signal is also generated by the control system as a function of a detected decrease in unregulated voltage.
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申请公布号 |
US4399538(A) |
申请公布日期 |
1983.08.16 |
申请号 |
US19810258869 |
申请日期 |
1981.04.30 |
申请人 |
PITNEY BOWES INC. |
发明人 |
CHOLAKIAN, GARY H.;RUBINSTEIN, ARTHUR;STEINMETZ, JOHN H. |
分类号 |
G06F1/24;G06F1/30;G06F11/00;G07B17/00;(IPC1-7):G06F11/30 |
主分类号 |
G06F1/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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