JPH021438B2 - - Google Patents
Info
- Publication number
- JPH021438B2 JPH021438B2 JP1576181A JP1576181A JPH021438B2 JP H021438 B2 JPH021438 B2 JP H021438B2 JP 1576181 A JP1576181 A JP 1576181A JP 1576181 A JP1576181 A JP 1576181A JP H021438 B2 JPH021438 B2 JP H021438B2
- Authority
- JP
- Japan
- Prior art keywords
- telephone
- output
- circuit
- power
- pair
- 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
- 238000004891 communication Methods 0.000 claims description 15
- 238000012544 monitoring process Methods 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
- H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
- H04Q3/625—Arrangements in the private branch exchange
Landscapes
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1576181A JPS57131191A (en) | 1981-02-06 | 1981-02-06 | Telephone device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1576181A JPS57131191A (en) | 1981-02-06 | 1981-02-06 | Telephone device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57131191A JPS57131191A (en) | 1982-08-13 |
JPH021438B2 true JPH021438B2 (en, 2012) | 1990-01-11 |
Family
ID=11897763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1576181A Granted JPS57131191A (en) | 1981-02-06 | 1981-02-06 | Telephone device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57131191A (en, 2012) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH041438A (ja) * | 1990-04-17 | 1992-01-06 | Hitachi Ltd | 内燃機関制御装置 |
-
1981
- 1981-02-06 JP JP1576181A patent/JPS57131191A/ja active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH041438A (ja) * | 1990-04-17 | 1992-01-06 | Hitachi Ltd | 内燃機関制御装置 |
Also Published As
Publication number | Publication date |
---|---|
JPS57131191A (en) | 1982-08-13 |
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