GB1395413A - Telecommunications systems - Google Patents
Telecommunications systemsInfo
- Publication number
- GB1395413A GB1395413A GB3400872A GB3400872A GB1395413A GB 1395413 A GB1395413 A GB 1395413A GB 3400872 A GB3400872 A GB 3400872A GB 3400872 A GB3400872 A GB 3400872A GB 1395413 A GB1395413 A GB 1395413A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tone
- exchange
- call
- substation
- ready
- 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
- 230000005540 biological transmission Effects 0.000 abstract 4
- 230000001934 delay Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 230000011664 signaling Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
- Communication Control (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712145205 DE2145205C3 (de) | 1971-09-09 | Verfahren zum Erkennen eines Zusammenstoßes zwischen einem aufsteigenden und einem absteigenden Ruf auf den Teilnehmeranschlußleitungen einer Datenvermittlungsanlage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1395413A true GB1395413A (en) | 1975-05-29 |
Family
ID=5819148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3400872A Expired GB1395413A (en) | 1971-09-09 | 1972-07-20 | Telecommunications systems |
Country Status (12)
-
0
- BE BE788568D patent/BE788568A/xx unknown
-
1972
- 1972-07-20 GB GB3400872A patent/GB1395413A/en not_active Expired
- 1972-08-01 ZA ZA725290A patent/ZA725290B/xx unknown
- 1972-08-04 CA CA148,746A patent/CA960390A/en not_active Expired
- 1972-08-07 CH CH1166572A patent/CH545567A/xx not_active IP Right Cessation
- 1972-08-14 AU AU45562/72A patent/AU469199B2/en not_active Expired
- 1972-08-31 FR FR7231003A patent/FR2152595B1/fr not_active Expired
- 1972-09-06 IT IT28851/72A patent/IT967176B/it active
- 1972-09-07 LU LU66020A patent/LU66020A1/xx unknown
- 1972-09-07 SE SE7211548A patent/SE381155B/xx unknown
- 1972-09-08 DK DK446172A patent/DK142389C/da active
- 1972-09-08 NL NL7212256A patent/NL7212256A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| AU4556272A (en) | 1974-02-21 |
| DE2145205B2 (de) | 1977-05-26 |
| AU469199B2 (en) | 1976-02-05 |
| CA960390A (en) | 1974-12-31 |
| ZA725290B (en) | 1973-04-25 |
| BE788568A (fr) | 1973-03-08 |
| FR2152595A1 (enrdf_load_stackoverflow) | 1973-04-27 |
| DK142389C (da) | 1981-03-23 |
| DE2145205A1 (de) | 1973-03-15 |
| FR2152595B1 (enrdf_load_stackoverflow) | 1977-07-29 |
| DK142389B (da) | 1980-10-20 |
| SE381155B (sv) | 1975-11-24 |
| LU66020A1 (enrdf_load_stackoverflow) | 1973-03-12 |
| IT967176B (it) | 1974-02-28 |
| NL7212256A (enrdf_load_stackoverflow) | 1973-03-13 |
| CH545567A (enrdf_load_stackoverflow) | 1974-01-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |