| 发明名称 |
SIGNAL TRANSMITTING APPARATUS |
| 摘要 |
PURPOSE:To provide a signal transmitting apparatus which can transmit a large amount of information at an excellent signal-to-noise ratio in a high reliability by constituting same such that a digital signal and an analog signal are transmitted over a two core strand. |
| 申请公布号 |
JPS53120067(A) |
申请公布日期 |
1978.10.20 |
| 申请号 |
JP19770035561 |
申请日期 |
1977.03.29 |
| 申请人 |
SUMITOMO METAL IND |
发明人 |
SHIRAISHI YUKITAKA |
| 分类号 |
H04M11/06;G08C15/06;H04J3/00;H04L5/22;H04Q9/00;H04Q9/14;H04Q9/16 |
主分类号 |
H04M11/06 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
