JPH02150858U - - Google Patents
Info
- Publication number
- JPH02150858U JPH02150858U JP5880089U JP5880089U JPH02150858U JP H02150858 U JPH02150858 U JP H02150858U JP 5880089 U JP5880089 U JP 5880089U JP 5880089 U JP5880089 U JP 5880089U JP H02150858 U JPH02150858 U JP H02150858U
- Authority
- JP
- Japan
- Prior art keywords
- changeover switch
- generation circuit
- signal
- dial tone
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 1
- 230000001788 irregular Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Devices For Supply Of Signal Current (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5880089U JPH02150858U (es) | 1989-05-22 | 1989-05-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5880089U JPH02150858U (es) | 1989-05-22 | 1989-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02150858U true JPH02150858U (es) | 1990-12-27 |
Family
ID=31584738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5880089U Pending JPH02150858U (es) | 1989-05-22 | 1989-05-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02150858U (es) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5481007A (en) * | 1977-12-12 | 1979-06-28 | Hitachi Ltd | Signal tone delivery system |
| JPS5723655B2 (es) * | 1979-07-24 | 1982-05-19 | ||
| JPS6379457A (ja) * | 1986-09-22 | 1988-04-09 | Nec Corp | 信号音トランク駆動回路 |
-
1989
- 1989-05-22 JP JP5880089U patent/JPH02150858U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5481007A (en) * | 1977-12-12 | 1979-06-28 | Hitachi Ltd | Signal tone delivery system |
| JPS5723655B2 (es) * | 1979-07-24 | 1982-05-19 | ||
| JPS6379457A (ja) * | 1986-09-22 | 1988-04-09 | Nec Corp | 信号音トランク駆動回路 |