DE2239440B2 - - Google Patents
Info
- Publication number
- DE2239440B2 DE2239440B2 DE2239440A DE2239440A DE2239440B2 DE 2239440 B2 DE2239440 B2 DE 2239440B2 DE 2239440 A DE2239440 A DE 2239440A DE 2239440 A DE2239440 A DE 2239440A DE 2239440 B2 DE2239440 B2 DE 2239440B2
- Authority
- DE
- Germany
- 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
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
- H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2239440A DE2239440C3 (de) | 1972-08-10 | 1972-08-10 | Echokompensator für ein Nachrichtenübertragungssystem |
GB3555373A GB1434239A (en) | 1972-08-10 | 1973-07-26 | Echo cancellers |
IL42921A IL42921A (en) | 1972-08-10 | 1973-08-07 | Echo suppressor |
SE7310873A SE396180B (sv) | 1972-08-10 | 1973-08-08 | Ekokompensator |
IT27665/73A IT998331B (it) | 1972-08-10 | 1973-08-08 | Compensatore d eco per sistemi di comunicazioni elettriche |
US387123A US3922505A (en) | 1972-08-10 | 1973-08-09 | Echo canceller |
NL7311057A NL7311057A (de) | 1972-08-10 | 1973-08-09 | |
FR7329157A FR2195877B1 (de) | 1972-08-10 | 1973-08-09 | |
ES417706A ES417706A1 (es) | 1972-08-10 | 1973-08-09 | Perfeccionamientos en la construccion de compensadores de ecos para un sistema de transmision de mensajes. |
JP48089941A JPS5220288B2 (de) | 1972-08-10 | 1973-08-10 | |
AU59125/73A AU480849B2 (en) | 1972-08-10 | 1973-08-10 | Improvements in or relating to echo compensators |
ZA735479A ZA735479B (en) | 1972-08-10 | 1973-08-10 | Improvements in or relating to echo compensators |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2239440A DE2239440C3 (de) | 1972-08-10 | 1972-08-10 | Echokompensator für ein Nachrichtenübertragungssystem |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2239440A1 DE2239440A1 (de) | 1974-02-28 |
DE2239440B2 true DE2239440B2 (de) | 1974-11-14 |
DE2239440C3 DE2239440C3 (de) | 1975-06-26 |
Family
ID=5853267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2239440A Expired DE2239440C3 (de) | 1972-08-10 | 1972-08-10 | Echokompensator für ein Nachrichtenübertragungssystem |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2239440C3 (de) |
ZA (1) | ZA735479B (de) |
-
1972
- 1972-08-10 DE DE2239440A patent/DE2239440C3/de not_active Expired
-
1973
- 1973-08-10 ZA ZA735479A patent/ZA735479B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE2239440A1 (de) | 1974-02-28 |
DE2239440C3 (de) | 1975-06-26 |
ZA735479B (en) | 1974-07-31 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 | ||
8339 | Ceased/non-payment of the annual fee |