发明名称 |
DICTATE STATION IDENTIFIER |
摘要 |
<p>DICTATE STATION IDENTIFIER An encoder for manually or automatically providing a sequence of identifier signals and a decoder for same, in a remote dictation system. A pair of control lines carry the identifier signals which are in part identical to signals used to control dictation recording functions of the remote recorder. A sequential counter and a matrix of switches provide an automatic sequence of signals to a set of transistors and diodes which establish the control line voltages. These devices are alternately connected to shift registers which accept keyboard signals entered from a keyboard. Timing circuitry controls the shifting of keyboard signals in and out of the registers. A combination of comparators and gates decode the control line voltages and provide inputs to decoding and timing circuitry which provides a binary number to a memory device. The occurrence of special, non-numerical, signals is detected by special gates. Also shown is verification apparatus comprising a pair of digital comparators which will prevent operation of a recorder unless the identifier signal corresponds to a predetermined valid signal stored in a memory.</p> |
申请公布号 |
CA1142442(A) |
申请公布日期 |
1983.03.08 |
申请号 |
CA19790342756 |
申请日期 |
1979.12.28 |
申请人 |
LANIER BUSINESS PRODUCTS, INC. |
发明人 |
PLUNKETT, LUTHER C., JR. |
分类号 |
G11B19/02;G11B31/00;H04M11/10;(IPC1-7):H04M11/10 |
主分类号 |
G11B19/02 |
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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