BR7604863A - Circuito para gerar um sinal de linha - Google Patents
Circuito para gerar um sinal de linhaInfo
- Publication number
- BR7604863A BR7604863A BR7604863A BR7604863A BR7604863A BR 7604863 A BR7604863 A BR 7604863A BR 7604863 A BR7604863 A BR 7604863A BR 7604863 A BR7604863 A BR 7604863A BR 7604863 A BR7604863 A BR 7604863A
- Authority
- BR
- Brazil
- Prior art keywords
- generate
- circuit
- line signal
- signal
- line
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
- H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2539505A DE2539505C3 (de) | 1975-09-05 | 1975-09-05 | Freiton-Generator |
Publications (1)
Publication Number | Publication Date |
---|---|
BR7604863A true BR7604863A (pt) | 1977-08-09 |
Family
ID=5955672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR7604863A BR7604863A (pt) | 1975-09-05 | 1976-07-27 | Circuito para gerar um sinal de linha |
Country Status (6)
Country | Link |
---|---|
AT (1) | AT350637B (pt) |
BR (1) | BR7604863A (pt) |
DE (1) | DE2539505C3 (pt) |
ES (1) | ES451179A1 (pt) |
IL (1) | IL50405A (pt) |
LU (1) | LU75726A1 (pt) |
-
1975
- 1975-09-05 DE DE2539505A patent/DE2539505C3/de not_active Expired
-
1976
- 1976-07-27 BR BR7604863A patent/BR7604863A/pt unknown
- 1976-09-02 ES ES451179A patent/ES451179A1/es not_active Expired
- 1976-09-02 IL IL50405A patent/IL50405A/xx unknown
- 1976-09-03 AT AT656976A patent/AT350637B/de not_active IP Right Cessation
- 1976-09-03 LU LU75726A patent/LU75726A1/xx unknown
Also Published As
Publication number | Publication date |
---|---|
ES451179A1 (es) | 1977-08-16 |
ATA656976A (de) | 1978-11-15 |
IL50405A0 (en) | 1976-11-30 |
DE2539505A1 (de) | 1977-03-10 |
IL50405A (en) | 1979-09-30 |
LU75726A1 (pt) | 1977-04-28 |
DE2539505C3 (de) | 1978-07-06 |
DE2539505B2 (de) | 1977-11-24 |
AT350637B (de) | 1979-06-11 |
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