JPH0329240B2 - - Google Patents
Info
- Publication number
- JPH0329240B2 JPH0329240B2 JP59016009A JP1600984A JPH0329240B2 JP H0329240 B2 JPH0329240 B2 JP H0329240B2 JP 59016009 A JP59016009 A JP 59016009A JP 1600984 A JP1600984 A JP 1600984A JP H0329240 B2 JPH0329240 B2 JP H0329240B2
- Authority
- JP
- Japan
- Prior art keywords
- power outage
- circuit
- power
- ringer
- line
- 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
Links
- 238000012544 monitoring process Methods 0.000 claims description 12
- 239000003990 capacitor Substances 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 6
- 230000005236 sound signal Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/18—Automatic or semi-automatic exchanges with means for reducing interference or noise; with means for reducing effects due to line faults with means for protecting lines
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59016009A JPS60162396A (ja) | 1984-02-02 | 1984-02-02 | 停電着信回路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59016009A JPS60162396A (ja) | 1984-02-02 | 1984-02-02 | 停電着信回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60162396A JPS60162396A (ja) | 1985-08-24 |
JPH0329240B2 true JPH0329240B2 (enrdf_load_stackoverflow) | 1991-04-23 |
Family
ID=11904588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59016009A Granted JPS60162396A (ja) | 1984-02-02 | 1984-02-02 | 停電着信回路 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60162396A (enrdf_load_stackoverflow) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2524882B2 (ja) * | 1990-09-28 | 1996-08-14 | 株式会社田村電機製作所 | 通信管理装置 |
-
1984
- 1984-02-02 JP JP59016009A patent/JPS60162396A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS60162396A (ja) | 1985-08-24 |
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