JPS6236424B2 - - Google Patents
Info
- Publication number
- JPS6236424B2 JPS6236424B2 JP11503579A JP11503579A JPS6236424B2 JP S6236424 B2 JPS6236424 B2 JP S6236424B2 JP 11503579 A JP11503579 A JP 11503579A JP 11503579 A JP11503579 A JP 11503579A JP S6236424 B2 JPS6236424 B2 JP S6236424B2
- Authority
- JP
- Japan
- Prior art keywords
- current
- telephone
- circuit
- terminal
- exchange
- 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 5
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000004891 communication Methods 0.000 description 18
- 238000004804 winding Methods 0.000 description 13
- 238000001514 detection method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000004397 blinking Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/001—Current supply source at the exchanger providing current to substations
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11503579A JPS5639673A (en) | 1979-09-07 | 1979-09-07 | Electric talking current supply circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11503579A JPS5639673A (en) | 1979-09-07 | 1979-09-07 | Electric talking current supply circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5639673A JPS5639673A (en) | 1981-04-15 |
JPS6236424B2 true JPS6236424B2 (ko) | 1987-08-06 |
Family
ID=14652585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11503579A Granted JPS5639673A (en) | 1979-09-07 | 1979-09-07 | Electric talking current supply circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5639673A (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0738735B2 (ja) * | 1985-04-30 | 1995-04-26 | 岩崎通信機株式会社 | ボタン電話装置 |
JP2591245B2 (ja) * | 1990-04-16 | 1997-03-19 | 日本電気株式会社 | 多重化装置の回線対応部における消費電力削減方式 |
-
1979
- 1979-09-07 JP JP11503579A patent/JPS5639673A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5639673A (en) | 1981-04-15 |
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