BE871916A - Appareil telephonique a cadran d'appel a touches electronique alimente par la ligne - Google Patents
Appareil telephonique a cadran d'appel a touches electronique alimente par la ligneInfo
- Publication number
- BE871916A BE871916A BE191656A BE191656A BE871916A BE 871916 A BE871916 A BE 871916A BE 191656 A BE191656 A BE 191656A BE 191656 A BE191656 A BE 191656A BE 871916 A BE871916 A BE 871916A
- Authority
- BE
- Belgium
- Prior art keywords
- feeded
- line
- phone device
- electronic keypad
- keypad phone
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/30—Devices which can set up and transmit only one digit at a time
- H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
- H04M1/312—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses pulses produced by electronic circuits
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Alarm Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772750348 DE2750348A1 (de) | 1977-11-10 | 1977-11-10 | Fernsprechapparat mit leitungsgespeistem elektronischen tastwahl- nummernschalter zum umsetzen der eingetasteten waehlziffern in nummernschalterimpulse |
Publications (1)
Publication Number | Publication Date |
---|---|
BE871916A true BE871916A (fr) | 1979-03-01 |
Family
ID=6023457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE191656A BE871916A (fr) | 1977-11-10 | 1978-11-10 | Appareil telephonique a cadran d'appel a touches electronique alimente par la ligne |
Country Status (4)
Country | Link |
---|---|
AU (1) | AU4143078A (xx) |
BE (1) | BE871916A (xx) |
DE (1) | DE2750348A1 (xx) |
FI (1) | FI783386A (xx) |
-
1977
- 1977-11-10 DE DE19772750348 patent/DE2750348A1/de active Pending
-
1978
- 1978-11-07 FI FI783386A patent/FI783386A/fi unknown
- 1978-11-08 AU AU41430/78A patent/AU4143078A/en active Pending
- 1978-11-10 BE BE191656A patent/BE871916A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
FI783386A (fi) | 1979-05-11 |
DE2750348A1 (de) | 1979-05-17 |
AU4143078A (en) | 1979-05-17 |
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