发明名称 |
REGLERING AV TALSIGNALER I TELEFONNET |
摘要 |
In a two-wire bidirectional telephone transmission line, a power converter and a directional threshold detector form in combination an impedance transparent bilateral voice-signal controller which can supply stable voice-switched gain to a dominant signal originating from either direction and a simultaneous, equal loss to any signals propagating from the other direction without separating the respective signals. |
申请公布号 |
SE7706985(A) |
申请公布日期 |
1977.12.29 |
申请号 |
SE19770006985 |
申请日期 |
1977.06.16 |
申请人 |
* WESTERN ELECTRIC COMPANY INCORPORATED |
发明人 |
P O * SCHUH |
分类号 |
H03F3/62;H03F3/183;H04B3/04;H04B3/20;H04B3/38;H04M1/58;H04M9/10;(IPC1-7):H04B3/20 |
主分类号 |
H03F3/62 |
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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