JPH0282149U - - Google Patents
Info
- Publication number
- JPH0282149U JPH0282149U JP16154188U JP16154188U JPH0282149U JP H0282149 U JPH0282149 U JP H0282149U JP 16154188 U JP16154188 U JP 16154188U JP 16154188 U JP16154188 U JP 16154188U JP H0282149 U JPH0282149 U JP H0282149U
- Authority
- JP
- Japan
- Prior art keywords
- bell
- signal
- detection circuit
- incoming
- matching transformer
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988161541U JPH084762Y2 (ja) | 1988-12-12 | 1988-12-12 | 着信ベル信号検出回路 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988161541U JPH084762Y2 (ja) | 1988-12-12 | 1988-12-12 | 着信ベル信号検出回路 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0282149U true JPH0282149U (et) | 1990-06-25 |
| JPH084762Y2 JPH084762Y2 (ja) | 1996-02-07 |
Family
ID=31444569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988161541U Expired - Lifetime JPH084762Y2 (ja) | 1988-12-12 | 1988-12-12 | 着信ベル信号検出回路 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH084762Y2 (et) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0276439A (ja) * | 1988-09-13 | 1990-03-15 | Nec Corp | 呼出信号検出回路 |
-
1988
- 1988-12-12 JP JP1988161541U patent/JPH084762Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0276439A (ja) * | 1988-09-13 | 1990-03-15 | Nec Corp | 呼出信号検出回路 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH084762Y2 (ja) | 1996-02-07 |