| 发明名称 |
SCANNING SYSTEM FOR SUBSCRIBER LINE |
| 摘要 |
PURPOSE:To eliminate the click noise generated for subscriber line scanning with the condition of subscriber off-hook and the induced noise to the adjacent subscriber, by eliminating the change in the subscriber line current due to SCR turning on and off. |
| 申请公布号 |
JPS5395510(A) |
申请公布日期 |
1978.08.21 |
| 申请号 |
JP19770010394 |
申请日期 |
1977.02.01 |
| 申请人 |
NIPPON TELEGRAPH & TELEPHONE;OKI ELECTRIC IND CO LTD |
发明人 |
AKIYAMA NOBUYOSHI;KIKUCHI AKIRA;ARAI TOSHIO;NARA EIZOU |
| 分类号 |
H04Q3/72;H04Q3/00 |
主分类号 |
H04Q3/72 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
