AT314620B - Circuit arrangement for coin-operated telephones in which counting pulses are converted into coin-collecting pulses - Google Patents
Circuit arrangement for coin-operated telephones in which counting pulses are converted into coin-collecting pulsesInfo
- Publication number
- AT314620B AT314620B AT343771A AT343771A AT314620B AT 314620 B AT314620 B AT 314620B AT 343771 A AT343771 A AT 343771A AT 343771 A AT343771 A AT 343771A AT 314620 B AT314620 B AT 314620B
- Authority
- AT
- Austria
- Prior art keywords
- coin
- pulses
- converted
- circuit arrangement
- collecting
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
- H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
- H04M17/023—Circuit arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Meter Arrangements (AREA)
- Prepayment Telephone Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702022266 DE2022266B2 (en) | 1970-05-06 | 1970-05-06 | PROCEDURE FOR IMPLEMENTING THE COUNTER PULSE FREQUENCY FOR COIN TELEPHONES |
Publications (1)
Publication Number | Publication Date |
---|---|
AT314620B true AT314620B (en) | 1974-04-10 |
Family
ID=5770450
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT343771A AT314620B (en) | 1970-05-06 | 1971-04-21 | Circuit arrangement for coin-operated telephones in which counting pulses are converted into coin-collecting pulses |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS545242B1 (en) |
AT (1) | AT314620B (en) |
BE (1) | BE766790A (en) |
CH (1) | CH527532A (en) |
DE (1) | DE2022266B2 (en) |
FR (1) | FR2091068A5 (en) |
GB (1) | GB1340569A (en) |
LU (1) | LU63098A1 (en) |
NL (1) | NL7106233A (en) |
-
1970
- 1970-05-06 DE DE19702022266 patent/DE2022266B2/en not_active Ceased
-
1971
- 1971-04-16 CH CH551871A patent/CH527532A/en not_active IP Right Cessation
- 1971-04-21 AT AT343771A patent/AT314620B/en not_active IP Right Cessation
- 1971-04-28 GB GB1178571A patent/GB1340569A/en not_active Expired
- 1971-05-03 FR FR7115756A patent/FR2091068A5/fr not_active Expired
- 1971-05-04 LU LU63098D patent/LU63098A1/xx unknown
- 1971-05-06 BE BE766790A patent/BE766790A/en unknown
- 1971-05-06 NL NL7106233A patent/NL7106233A/xx unknown
- 1971-05-06 JP JP3013071A patent/JPS545242B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2022266A1 (en) | 1971-11-18 |
JPS545242B1 (en) | 1979-03-15 |
LU63098A1 (en) | 1971-08-31 |
CH527532A (en) | 1972-08-31 |
NL7106233A (en) | 1971-11-09 |
GB1340569A (en) | 1973-12-12 |
BE766790A (en) | 1971-11-08 |
FR2091068A5 (en) | 1972-01-14 |
DE2022266B2 (en) | 1972-07-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ELJ | Ceased due to non-payment of the annual fee |