BE497954A - - Google Patents
Info
- Publication number
- BE497954A BE497954A BE497954DA BE497954A BE 497954 A BE497954 A BE 497954A BE 497954D A BE497954D A BE 497954DA BE 497954 A BE497954 A BE 497954A
- Authority
- BE
- Belgium
Links
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/54—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements of vacuum tubes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/12—Arrangements providing for calling or supervisory signals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Electrotherapy Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB23082/49A GB715461A (en) | 1949-09-06 | 1949-09-06 | Improvements in electrical communication switching systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE497954A true BE497954A (en:Method) |
Family
ID=10189826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE497954D BE497954A (en:Method) | 1949-09-06 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2786891A (en:Method) |
| BE (1) | BE497954A (en:Method) |
| FR (1) | FR1057793A (en:Method) |
| GB (1) | GB715461A (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3263030A (en) * | 1961-09-26 | 1966-07-26 | Rca Corp | Digital crosspoint switch |
| CA977769A (en) * | 1970-12-21 | 1975-11-11 | General Electric Company | Redistribution of alkylhydrosilanes |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2520132A (en) * | 1945-11-14 | 1950-08-29 | Standard Telephones Cables Ltd | Electronic line finder system |
| US2492344A (en) * | 1945-11-14 | 1949-12-27 | Standard Telephones Cables Ltd | Line finder control circuit for communication systems |
| NL69954C (en:Method) * | 1946-01-25 | |||
| USRE23418E (en) * | 1946-02-19 | 1951-10-16 | ransom r |
-
0
- BE BE497954D patent/BE497954A/xx unknown
-
1949
- 1949-09-06 GB GB23082/49A patent/GB715461A/en not_active Expired
-
1950
- 1950-08-25 US US181451A patent/US2786891A/en not_active Expired - Lifetime
- 1950-09-05 FR FR1057793D patent/FR1057793A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1057793A (fr) | 1954-03-10 |
| GB715461A (en) | 1954-09-15 |
| US2786891A (en) | 1957-03-26 |