| 发明名称 |
OVERLAPPING CIRCUIT OF B BOARD |
| 摘要 |
PURPOSE:To increase the mounting space efficiency for Bboard through elimination of the hybrid transformer by providing an operational amplifier to the reciver circuit. |
| 申请公布号 |
JPS52150904(A) |
申请公布日期 |
1977.12.15 |
| 申请号 |
JP19760067654 |
申请日期 |
1976.06.11 |
| 申请人 |
HITACHI LTD |
发明人 |
OONUMA TATSUMASA;ABE KIYOHIKO;UEHARA TAIJI |
| 分类号 |
H04M3/60;(IPC1-7):04M3/60 |
主分类号 |
H04M3/60 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
