| 发明名称 |
Current regulated pulse dialer circuit |
| 摘要 |
A current regulated pulse dialer circuit for use in a loop powered pulse dialing telephone. A current source is connected to an electronic pulse dialer to provide high impedance across a telephone line during transmission and interpulse pause conditions.
|
| 申请公布号 |
US4286120(A) |
申请公布日期 |
1981.08.25 |
| 申请号 |
US19790084960 |
申请日期 |
1979.10.15 |
| 申请人 |
GTE AUTOMATIC ELECTRIC LABS INC. |
发明人 |
SUBLETTE, JOHN D. |
| 分类号 |
H04M1/31;(IPC1-7):H04M1/31 |
主分类号 |
H04M1/31 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
