FR673993A - Transmission téléphonique - Google Patents
Transmission téléphoniqueInfo
- Publication number
- FR673993A FR673993A FR673993DA FR673993A FR 673993 A FR673993 A FR 673993A FR 673993D A FR673993D A FR 673993DA FR 673993 A FR673993 A FR 673993A
- Authority
- FR
- France
- Prior art keywords
- telephone transmission
- telephone
- transmission
- 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
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/04—Control of transmission; Equalising
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB858229A GB330642A (en) | 1929-03-16 | 1929-03-16 | Improvements in or relating to electrical signalling systems |
Publications (1)
Publication Number | Publication Date |
---|---|
FR673993A true FR673993A (fr) | 1930-01-22 |
Family
ID=9855230
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR673993D Expired FR673993A (fr) | 1929-03-16 | 1929-04-25 | Transmission téléphonique |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE608530C (fr) |
FR (1) | FR673993A (fr) |
GB (1) | GB330642A (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE749876C (de) * | 1940-11-27 | 1944-12-07 | Traegerfrequenzsystem zur gleichzeitigen UEbertragung von Frequenzbaendern mit starkfrequenzabhaengiger und solchen mit frequenzunabhaengiger durchschnittlicher Energieverteilung | |
DE3226279A1 (de) * | 1982-07-14 | 1984-01-19 | Neumann Elektronik GmbH, 4330 Mülheim | Anordnung zum ausgleich unterschiedlichen daempfungsverhaltens von fernmeldeleitungen |
-
1929
- 1929-03-16 GB GB858229A patent/GB330642A/en not_active Expired
- 1929-04-06 DE DEE39066D patent/DE608530C/de not_active Expired
- 1929-04-25 FR FR673993D patent/FR673993A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE608530C (de) | 1935-01-25 |
GB330642A (en) | 1930-06-16 |
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