FR1145385A - Device for the emission of electric pulse trains - Google Patents
Device for the emission of electric pulse trainsInfo
- Publication number
- FR1145385A FR1145385A FR1145385DA FR1145385A FR 1145385 A FR1145385 A FR 1145385A FR 1145385D A FR1145385D A FR 1145385DA FR 1145385 A FR1145385 A FR 1145385A
- Authority
- FR
- France
- Prior art keywords
- emission
- electric pulse
- pulse trains
- trains
- electric
- 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
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
- H04M1/38—Pulses transmitted by a movement variably limited by the setting of a stop
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB138056A GB791782A (en) | 1956-01-16 | 1956-01-16 | Improvements in and relating to devices for the transmission of series of electricalpulses |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1145385A true FR1145385A (en) | 1957-10-25 |
Family
ID=9721011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1145385D Expired FR1145385A (en) | 1956-01-16 | 1956-01-20 | Device for the emission of electric pulse trains |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE544479A (en) |
CH (1) | CH343456A (en) |
FR (1) | FR1145385A (en) |
GB (1) | GB791782A (en) |
-
0
- BE BE544479D patent/BE544479A/xx unknown
-
1956
- 1956-01-03 CH CH343456D patent/CH343456A/en unknown
- 1956-01-16 GB GB138056A patent/GB791782A/en not_active Expired
- 1956-01-20 FR FR1145385D patent/FR1145385A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB791782A (en) | 1958-03-12 |
CH343456A (en) | 1959-12-31 |
BE544479A (en) |
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