ZA733645B - Improvements in or relating to exchange systems - Google Patents
Improvements in or relating to exchange systemsInfo
- Publication number
- ZA733645B ZA733645B ZA733645A ZA733645A ZA733645B ZA 733645 B ZA733645 B ZA 733645B ZA 733645 A ZA733645 A ZA 733645A ZA 733645 A ZA733645 A ZA 733645A ZA 733645 B ZA733645 B ZA 733645B
- Authority
- ZA
- South Africa
- Prior art keywords
- relating
- exchange systems
- exchange
- systems
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/50—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication
- H04L12/52—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication using time division techniques
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2226816A DE2226816A1 (de) | 1972-06-02 | 1972-06-02 | Verfahren zum erkennen von bitparallel vorliegenden zeichen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA733645B true ZA733645B (en) | 1974-04-24 |
Family
ID=5846588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA733645A ZA733645B (en) | 1972-06-02 | 1973-05-29 | Improvements in or relating to exchange systems |
Country Status (11)
| Country | Link |
|---|---|
| BE (1) | BE800374A (cs) |
| BR (1) | BR7304142D0 (cs) |
| CA (1) | CA1004756A (cs) |
| CH (1) | CH557119A (cs) |
| DE (1) | DE2226816A1 (cs) |
| FR (1) | FR2332661A1 (cs) |
| GB (1) | GB1410395A (cs) |
| IT (1) | IT988794B (cs) |
| NL (1) | NL7307588A (cs) |
| SE (1) | SE380371B (cs) |
| ZA (1) | ZA733645B (cs) |
-
1972
- 1972-06-02 DE DE2226816A patent/DE2226816A1/de active Pending
-
1973
- 1973-05-10 GB GB2233173A patent/GB1410395A/en not_active Expired
- 1973-05-11 CH CH661873A patent/CH557119A/xx not_active IP Right Cessation
- 1973-05-24 FR FR7318967A patent/FR2332661A1/fr active Granted
- 1973-05-25 CA CA172,288A patent/CA1004756A/en not_active Expired
- 1973-05-29 ZA ZA733645A patent/ZA733645B/xx unknown
- 1973-05-30 SE SE7307699*A patent/SE380371B/xx unknown
- 1973-05-30 IT IT24813/73A patent/IT988794B/it active
- 1973-05-30 NL NL7307588A patent/NL7307588A/xx unknown
- 1973-06-01 BE BE131808A patent/BE800374A/xx unknown
- 1973-06-01 BR BR4142/73A patent/BR7304142D0/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1410395A (en) | 1975-10-15 |
| BR7304142D0 (pt) | 1974-07-11 |
| NL7307588A (cs) | 1973-12-04 |
| DE2226816A1 (de) | 1973-12-13 |
| FR2332661A1 (fr) | 1977-06-17 |
| FR2332661B1 (cs) | 1978-04-14 |
| SE380371B (sv) | 1975-11-03 |
| IT988794B (it) | 1975-04-30 |
| AU5625473A (en) | 1974-12-05 |
| CH557119A (de) | 1974-12-13 |
| CA1004756A (en) | 1977-02-01 |
| BE800374A (fr) | 1973-12-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ZA733315B (en) | Improvements in or relating to connection elements | |
| ZA731896B (en) | Improvements in or relating to ozonisers | |
| HK38777A (en) | Improvements in or relating to memory systems | |
| CY801A (en) | Improvements in or relating to shaving devices | |
| ZA733840B (en) | Improvements in or relating to character-printing systems | |
| GB1200155A (en) | Improvements in or relating to centrally controlled exchange systems | |
| HK88179A (en) | Improvements in or relating to shaving units | |
| ZA734893B (en) | Improvements in or relating to control units | |
| IL41044A0 (en) | Improvements in or relating to v-drive systems | |
| ZA722898B (en) | Improvements in or relating to pipes | |
| ZA713666B (en) | Improvements in or relating to programme-controlled exchange systems | |
| ZA738261B (en) | Improvements in or relating to teleprinter systems | |
| ZA732806B (en) | Improvements in or relating to data exchange systems | |
| ZA737616B (en) | Improvements in relating to data transmission systems | |
| ZA732805B (en) | Improvements in or relating to stored programme-controlled data exchange systems | |
| ZA735595B (en) | Improvements in or relating to t.d.m.exchange systems | |
| ZA733645B (en) | Improvements in or relating to exchange systems | |
| ZA734936B (en) | Improvements in or relating to servo systems | |
| ZA712355B (en) | Improvements in or relating to programme-controlled data exchange systems | |
| IL42113A0 (en) | Improvements in or relating to digital computing systems | |
| KR780000564B1 (en) | Improvement in or relating to telecommunication exchange system | |
| ZA738191B (en) | Improvements in or relating to storedprogram controlled telecommunication exchange systems | |
| AU454848B2 (en) | Improvements in or relating to programme-controlled exchange systems | |
| ZA715082B (en) | Improvements in or relating to telecommunications exchange systems | |
| GB1200153A (en) | Improvements in or relating to centrally controlled exchange systems |