JPS57121360A - Two-wire interphone - Google Patents
Two-wire interphoneInfo
- Publication number
- JPS57121360A JPS57121360A JP665181A JP665181A JPS57121360A JP S57121360 A JPS57121360 A JP S57121360A JP 665181 A JP665181 A JP 665181A JP 665181 A JP665181 A JP 665181A JP S57121360 A JPS57121360 A JP S57121360A
- Authority
- JP
- Japan
- Prior art keywords
- switch
- equipment
- diode
- terminal
- switched
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/001—Two-way communication systems between a limited number of parties
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP665181A JPS57121360A (en) | 1981-01-20 | 1981-01-20 | Two-wire interphone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP665181A JPS57121360A (en) | 1981-01-20 | 1981-01-20 | Two-wire interphone |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57121360A true JPS57121360A (en) | 1982-07-28 |
JPS6147023B2 JPS6147023B2 (enrdf_load_stackoverflow) | 1986-10-17 |
Family
ID=11644277
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP665181A Granted JPS57121360A (en) | 1981-01-20 | 1981-01-20 | Two-wire interphone |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57121360A (enrdf_load_stackoverflow) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8720299B2 (en) | 2010-06-29 | 2014-05-13 | Kubota Corporation | Tiltable steering wheel apparatus for work vehicle |
-
1981
- 1981-01-20 JP JP665181A patent/JPS57121360A/ja active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8720299B2 (en) | 2010-06-29 | 2014-05-13 | Kubota Corporation | Tiltable steering wheel apparatus for work vehicle |
Also Published As
Publication number | Publication date |
---|---|
JPS6147023B2 (enrdf_load_stackoverflow) | 1986-10-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0160472A3 (en) | Reprogrammable call forwarding device | |
SE8403631L (sv) | Overforing av dataanrop | |
SE8403632L (sv) | Forindikering av dataanrop | |
DE59209713D1 (de) | Anschlussleiste für die Fernmelde- und Datentechnik | |
JPS57121360A (en) | Two-wire interphone | |
JPS54114011A (en) | Loudspeaker telephone device | |
JPS5644257A (en) | Telephone set | |
JPS53117922A (en) | Absence reception voice answer skip system | |
JPS57129565A (en) | Key telephone system | |
JPS57104354A (en) | Button telephone set | |
JPS57190450A (en) | Privacy system for push-button dial telephone set | |
JPS556928A (en) | Extension answer connecting system for key telephone system | |
JPS6457891A (en) | Key telephone system | |
GB1265084A (enrdf_load_stackoverflow) | ||
JPS56132842A (en) | Communication speed matching system | |
SU557513A1 (ru) | Статив абонентского оборудовани | |
JPS5637766A (en) | Automatic telephone switching device for telemeter | |
JPS57147367A (en) | Conference trunk | |
SU1061289A2 (ru) | Абонентское устройство квазиэлектронной АТС малой емкости | |
SU1363526A1 (ru) | Коммутационное устройство электронного номеронабирател | |
SU1070705A1 (ru) | Электронный линейный комплект концентратора телефонных линий | |
JPS572186A (en) | Alternating current separating circuit | |
JPS57136849A (en) | Remote subscriber line testing system | |
JPS5630355A (en) | Call selection system of terminal equipment | |
JPS57131192A (en) | Private branch exchange |