JPH0448761U - - Google Patents
Info
- Publication number
- JPH0448761U JPH0448761U JP9049190U JP9049190U JPH0448761U JP H0448761 U JPH0448761 U JP H0448761U JP 9049190 U JP9049190 U JP 9049190U JP 9049190 U JP9049190 U JP 9049190U JP H0448761 U JPH0448761 U JP H0448761U
- Authority
- JP
- Japan
- Prior art keywords
- ringer
- modem
- communication line
- detection circuit
- detection device
- 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
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Interface Circuits In Exchanges (AREA)
- Meter Arrangements (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990090491U JPH084774Y2 (ja) | 1990-08-28 | 1990-08-28 | リンガー検出装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990090491U JPH084774Y2 (ja) | 1990-08-28 | 1990-08-28 | リンガー検出装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0448761U true JPH0448761U (en]) | 1992-04-24 |
| JPH084774Y2 JPH084774Y2 (ja) | 1996-02-07 |
Family
ID=31825299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990090491U Expired - Lifetime JPH084774Y2 (ja) | 1990-08-28 | 1990-08-28 | リンガー検出装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH084774Y2 (en]) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1707831B1 (en) | 2004-01-09 | 2012-02-01 | NTN Corporation | Thrust needle roller bearing, support structure receiving thrust load of compressor for car air-conditioner, support structure receiving thrust load of automatic transmission, support structure for nonstep variable speed gear, and support structure receiving thrust load of manual transmission |
-
1990
- 1990-08-28 JP JP1990090491U patent/JPH084774Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH084774Y2 (ja) | 1996-02-07 |
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