JPH084762Y2 - 着信ベル信号検出回路 - Google Patents
着信ベル信号検出回路Info
- Publication number
- JPH084762Y2 JPH084762Y2 JP1988161541U JP16154188U JPH084762Y2 JP H084762 Y2 JPH084762 Y2 JP H084762Y2 JP 1988161541 U JP1988161541 U JP 1988161541U JP 16154188 U JP16154188 U JP 16154188U JP H084762 Y2 JPH084762 Y2 JP H084762Y2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- bell
- ringing
- detection circuit
- incoming
- 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.)
- Expired - Lifetime
Links
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 JPH0282149U ( ) | 1990-06-25 |
JPH084762Y2 true 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 ( ) |
Family Cites Families (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
Also Published As
Publication number | Publication date |
---|---|
JPH0282149U ( ) | 1990-06-25 |
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