| 发明名称 |
MAINTENANCE RESPONSE SIGNALLING ARRANGEMENT FOR A DIGITAL TRANSMISSION SYSTEM |
| 摘要 |
<p>MAINTENANCE RESPONSE SIGNALLING ARRANGEMENT FOR A DIGITAL TRANSMISSION SYSTEM A maintenance response signalling arrangement for a digital transmission system transmits response signals from a repeater to an end terminal. From the repeater, response information is modulated onto a subcarrier which is superimposed as a jitter signal on the main data stream. At the end terminal, the response information is recovered from the jitter signal on the main data stream.</p> |
| 申请公布号 |
CA1229889(A) |
申请公布日期 |
1987.12.01 |
| 申请号 |
CA19840460108 |
申请日期 |
1984.07.31 |
| 申请人 |
AMERICAN TELEPHONE AND TELEGRAPH COMPANY |
发明人 |
ANDERSON, CLEO D. |
| 分类号 |
H04B10/00;H04B3/36;H04B3/46;H04B10/02;H04B10/08;H04B17/02;H04J3/12;H04J9/00;H04J99/00;H04L1/00;H04L25/02;H04L27/32;(IPC1-7):H04J3/12 |
主分类号 |
H04B10/00 |
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