JPH01126649U - - Google Patents
Info
- Publication number
- JPH01126649U JPH01126649U JP1687788U JP1687788U JPH01126649U JP H01126649 U JPH01126649 U JP H01126649U JP 1687788 U JP1687788 U JP 1687788U JP 1687788 U JP1687788 U JP 1687788U JP H01126649 U JPH01126649 U JP H01126649U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- ringing signal
- voltage level
- circuit
- calling
- 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 3
- 238000009499 grossing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1687788U JPH01126649U (en]) | 1988-02-10 | 1988-02-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1687788U JPH01126649U (en]) | 1988-02-10 | 1988-02-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01126649U true JPH01126649U (en]) | 1989-08-30 |
Family
ID=31230187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1687788U Pending JPH01126649U (en]) | 1988-02-10 | 1988-02-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01126649U (en]) |
-
1988
- 1988-02-10 JP JP1687788U patent/JPH01126649U/ja active Pending
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