JPH0469946U - - Google Patents
Info
- Publication number
- JPH0469946U JPH0469946U JP11387190U JP11387190U JPH0469946U JP H0469946 U JPH0469946 U JP H0469946U JP 11387190 U JP11387190 U JP 11387190U JP 11387190 U JP11387190 U JP 11387190U JP H0469946 U JPH0469946 U JP H0469946U
- Authority
- JP
- Japan
- Prior art keywords
- detection
- power supply
- telephone line
- hook state
- detecting
- 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
- 238000001514 detection method Methods 0.000 claims description 12
- 238000010586 diagram Methods 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11387190U JPH0469946U (hr) | 1990-10-29 | 1990-10-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11387190U JPH0469946U (hr) | 1990-10-29 | 1990-10-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0469946U true JPH0469946U (hr) | 1992-06-22 |
Family
ID=31861495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11387190U Pending JPH0469946U (hr) | 1990-10-29 | 1990-10-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0469946U (hr) |
-
1990
- 1990-10-29 JP JP11387190U patent/JPH0469946U/ja active Pending