GB2128451B - Systems for data transmission over a public telephone network - Google Patents
Systems for data transmission over a public telephone networkInfo
- Publication number
- GB2128451B GB2128451B GB08325832A GB8325832A GB2128451B GB 2128451 B GB2128451 B GB 2128451B GB 08325832 A GB08325832 A GB 08325832A GB 8325832 A GB8325832 A GB 8325832A GB 2128451 B GB2128451 B GB 2128451B
- Authority
- GB
- United Kingdom
- Prior art keywords
- systems
- data transmission
- telephone network
- transmission over
- public telephone
- 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
- 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)
- Prepayment Telephone Systems (AREA)
- Meter Arrangements (AREA)
- Coloring (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH580382A CH659162A5 (en) | 1982-10-01 | 1982-10-01 | Arrangement for data transmission on the public telephone network. |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8325832D0 GB8325832D0 (en) | 1983-10-26 |
GB2128451A GB2128451A (en) | 1984-04-26 |
GB2128451B true GB2128451B (en) | 1986-02-19 |
Family
ID=4299560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08325832A Expired GB2128451B (en) | 1982-10-01 | 1983-09-27 | Systems for data transmission over a public telephone network |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE897886A (en) |
CH (1) | CH659162A5 (en) |
DE (1) | DE3240020C2 (en) |
DK (1) | DK452883A (en) |
GB (1) | GB2128451B (en) |
SE (1) | SE8305387L (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1187866B (en) * | 1986-01-21 | 1987-12-23 | Urmet Sud Costr Elett Telefon | SYSTEM AND EQUIPMENT FOR PUBLIC TELEPHONY WITH PREPARATION FOR THE INSERTION OF VARIOUS TELEPHONE TERMINALS AND TELEMATIC TERMINALS |
FR2607343B1 (en) * | 1986-11-20 | 1989-03-10 | Lesieur Philippe | DEVICE FOR COUPLING A TELEMATIC TERMINAL TO A PREPAID AND / OR DEFERRED PAY TELEPHONE APPARATUS |
DE3741072A1 (en) * | 1987-12-04 | 1989-06-15 | Standard Elektrik Lorenz Ag | Circuit arrangement for detecting an incoming call in a telephone set |
US4926458A (en) * | 1988-05-26 | 1990-05-15 | Mars Incorporated | Low power control apparatus for a coin operated telephone |
US5276441A (en) * | 1989-07-08 | 1994-01-04 | Sharp Kabushiki Kaisha | Communication charge manageable digital communication unit and a method of managing communication charge |
DE69014004T2 (en) * | 1989-07-08 | 1995-06-14 | Sharp Kk | Digital connection unit and method for managing communication fees. |
GB2242100A (en) * | 1990-03-14 | 1991-09-18 | Tunstall Security Limited | Alarm communication controller |
US5519769C1 (en) * | 1994-04-04 | 2002-05-28 | Rates Technology Inc | Method and system for updating a call rating database |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1059923B (en) * | 1976-04-27 | 1982-06-21 | Cselt Centro Studi Lab Telecom | PREPAID TELEPHONE EQUIPMENT WITH MICROCALCULATOR |
-
1982
- 1982-10-01 CH CH580382A patent/CH659162A5/en not_active IP Right Cessation
- 1982-10-28 DE DE19823240020 patent/DE3240020C2/en not_active Expired
-
1983
- 1983-09-27 GB GB08325832A patent/GB2128451B/en not_active Expired
- 1983-09-30 BE BE0/211624A patent/BE897886A/en not_active IP Right Cessation
- 1983-09-30 DK DK452883A patent/DK452883A/en not_active Application Discontinuation
- 1983-09-30 SE SE8305387A patent/SE8305387L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE3240020C2 (en) | 1986-01-09 |
BE897886A (en) | 1984-01-16 |
SE8305387D0 (en) | 1983-09-30 |
CH659162A5 (en) | 1986-12-31 |
DK452883A (en) | 1984-04-02 |
DE3240020A1 (en) | 1984-04-05 |
DK452883D0 (en) | 1983-09-30 |
GB2128451A (en) | 1984-04-26 |
SE8305387L (en) | 1984-04-02 |
GB8325832D0 (en) | 1983-10-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB8310250D0 (en) | Cable network data transmission system | |
DE3279445D1 (en) | Data communications network | |
GB9109326D0 (en) | Telephone network data transmission | |
EP0121034A3 (en) | Interfacing a communication network | |
EP0502555A3 (en) | Communication network system | |
GB2126458B (en) | Local network system interface | |
DE3367057D1 (en) | Data transmission network | |
DE3378178D1 (en) | Data transmission system for a local network | |
DE3377189D1 (en) | Receiving circuit for a data transmission system | |
DE3574092D1 (en) | Switching system for a digital transmission network | |
DE3473545D1 (en) | Data transmission/reception network system | |
YU43383A (en) | Telecommunication system for data transmission by means of a digital exchange | |
EP0119843A3 (en) | A system for linking channel group in digital communication network | |
DE3375269D1 (en) | Telecommunication system loop-back unit | |
DE3460411D1 (en) | Cable network for video communication | |
GB2128451B (en) | Systems for data transmission over a public telephone network | |
JPS56156086A (en) | Remote unit for telephone set circuit network | |
DE3373958D1 (en) | A data transmission system | |
DE3269608D1 (en) | Service-integrated transmission and switching network for picture, sound and data | |
JPS57116460A (en) | Digital communication transmission system | |
GB2110505B (en) | Data communications network | |
YU102882A (en) | Arrangement for distributing signals for the permission for transmitting from a terminal in a telecommunication network | |
AU563742B2 (en) | Subscriber circuit for a telephone network | |
DE3462209D1 (en) | Transmission circuit for a dtmf telephone set | |
GB2125252B (en) | Telecommunication exchange network |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |