HU176960B - Blok-skhema telefonnykh apparatov s odno- ili dvukhkratnym ispol'zovanie, abonentnykh linij peredachi - Google Patents
Blok-skhema telefonnykh apparatov s odno- ili dvukhkratnym ispol'zovanie, abonentnykh linij peredachi Download PDFInfo
- Publication number
- HU176960B HU176960B HU77FE1007A HUFE001007A HU176960B HU 176960 B HU176960 B HU 176960B HU 77FE1007 A HU77FE1007 A HU 77FE1007A HU FE001007 A HUFE001007 A HU FE001007A HU 176960 B HU176960 B HU 176960B
- Authority
- HU
- Hungary
- Prior art keywords
- transistor
- resistor
- capacitor
- circuit
- fork
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/58—Anti-side-tone circuits
- H04M1/585—Anti-side-tone circuits implemented without inductive element
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/71—Substation extension arrangements
- H04M1/715—Substation extension arrangements using two or more extensions per line
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
- Interface Circuits In Exchanges (AREA)
- Telephone Function (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD19495576A DD127119B1 (cs) | 1976-09-23 | 1976-09-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
HU176960B true HU176960B (hu) | 1981-06-28 |
Family
ID=5505821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HU77FE1007A HU176960B (hu) | 1976-09-23 | 1977-09-09 | Blok-skhema telefonnykh apparatov s odno- ili dvukhkratnym ispol'zovanie, abonentnykh linij peredachi |
Country Status (7)
Country | Link |
---|---|
CS (1) | CS225657B1 (cs) |
CU (1) | CU34755A (cs) |
DD (1) | DD127119B1 (cs) |
DE (1) | DE2732532C2 (cs) |
HU (1) | HU176960B (cs) |
RO (1) | RO80538B1 (cs) |
YU (1) | YU39255B (cs) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2159150C3 (de) * | 1971-11-29 | 1978-07-27 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Schaltungsanordnung für zentralgespeiste Teilnehmerstationen mit eine Widerstandsbrücke enthaltenden Sprechschaltungen |
-
1976
- 1976-09-23 DD DD19495576A patent/DD127119B1/xx unknown
-
1977
- 1977-07-19 DE DE2732532A patent/DE2732532C2/de not_active Expired
- 1977-08-23 CU CU34755A patent/CU34755A/es unknown
- 1977-09-02 CS CS775742A patent/CS225657B1/cs unknown
- 1977-09-09 HU HU77FE1007A patent/HU176960B/hu unknown
- 1977-09-20 YU YU2223/77A patent/YU39255B/xx unknown
- 1977-09-21 RO RO91626A patent/RO80538B1/ro unknown
Also Published As
Publication number | Publication date |
---|---|
RO80538B1 (ro) | 1984-03-30 |
CU20982L (es) | 1981-04-20 |
RO80538A2 (ro) | 1984-03-15 |
DE2732532A1 (de) | 1978-03-30 |
YU222377A (en) | 1982-02-28 |
CS225657B1 (en) | 1984-02-13 |
DD127119A1 (cs) | 1977-09-07 |
DD127119B1 (cs) | 1981-05-27 |
DE2732532C2 (de) | 1986-04-17 |
CU34755A (es) | 1983-10-04 |
YU39255B (en) | 1984-10-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
HU90 | Patent valid on 900628 |