GB1327861A - Apparatus for coupling out and or separating signals on subscribers line - Google Patents
Apparatus for coupling out and or separating signals on subscribers lineInfo
- Publication number
- GB1327861A GB1327861A GB2076171A GB2076171A GB1327861A GB 1327861 A GB1327861 A GB 1327861A GB 2076171 A GB2076171 A GB 2076171A GB 2076171 A GB2076171 A GB 2076171A GB 1327861 A GB1327861 A GB 1327861A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dialling
- cps
- pulses
- low pass
- filter
- 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
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/24—Arrangements for supervision, monitoring or testing with provision for checking the normal operation
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
- Telephonic Communication Services (AREA)
- Devices For Supply Of Signal Current (AREA)
- Polyurethanes Or Polyureas (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH156370A CH519834A (de) | 1970-02-03 | 1970-02-03 | Verfahren und Vorrichtung zur Auskoppelung von Signalen auf Teilnehmerleitungen |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1327861A true GB1327861A (en) | 1973-08-22 |
Family
ID=4213344
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2076171A Expired GB1327861A (en) | 1970-02-03 | 1971-04-19 | Apparatus for coupling out and or separating signals on subscribers line |
Country Status (7)
Country | Link |
---|---|
CH (1) | CH519834A (de) |
DE (1) | DE2100457B2 (de) |
ES (1) | ES387708A1 (de) |
FI (1) | FI56463C (de) |
GB (1) | GB1327861A (de) |
NO (1) | NO132888C (de) |
YU (1) | YU34176B (de) |
-
1970
- 1970-02-03 CH CH156370A patent/CH519834A/de not_active IP Right Cessation
- 1970-12-17 NO NO485370A patent/NO132888C/no unknown
- 1970-12-31 FI FI352270A patent/FI56463C/fi active
-
1971
- 1971-01-07 DE DE19712100457 patent/DE2100457B2/de not_active Ceased
- 1971-01-25 YU YU16171A patent/YU34176B/xx unknown
- 1971-01-28 ES ES387708A patent/ES387708A1/es not_active Expired
- 1971-04-19 GB GB2076171A patent/GB1327861A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2100457A1 (de) | 1971-08-12 |
NO132888C (de) | 1976-01-21 |
FI56463B (fi) | 1979-09-28 |
DE2100457B2 (de) | 1978-06-08 |
NO132888B (de) | 1975-10-13 |
YU16171A (en) | 1978-06-30 |
FI56463C (fi) | 1980-01-10 |
YU34176B (en) | 1978-12-31 |
ES387708A1 (es) | 1973-05-16 |
CH519834A (de) | 1972-02-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |