发明名称 |
Multiport conference circuit with voice level coding |
摘要 |
An improved conference circuit for use in a Pulse Code Modulation telephone switching system wherein a number of channels are combined so that a number of subscribers may participate in a common telephone conversation. The conference circuit is provided with a voice level coding arrangement whereby the voice level comparisons used in the speaker selection process are facilitated.
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申请公布号 |
US4254497(A) |
申请公布日期 |
1981.03.03 |
申请号 |
US19790064202 |
申请日期 |
1979.08.06 |
申请人 |
GTE AUTOMATIC ELECTRIC LABORATORIES, INC. |
发明人 |
FUNDERBURK, TIM;MCLAUGHLIN, DONALD W. |
分类号 |
H04M3/56;(IPC1-7):H04J3/02 |
主分类号 |
H04M3/56 |
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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