BE440777A - - Google Patents
Info
- Publication number
- BE440777A BE440777A BE440777DA BE440777A BE 440777 A BE440777 A BE 440777A BE 440777D A BE440777D A BE 440777DA BE 440777 A BE440777 A BE 440777A
- Authority
- BE
- Belgium
- Prior art keywords
- line
- relay
- shared
- subscriber
- telephone system
- Prior art date
Links
- 239000004020 conductor Substances 0.000 claims description 58
- 230000000903 blocking effect Effects 0.000 claims description 15
- 230000002441 reversible effect Effects 0.000 claims description 12
- 238000011084 recovery Methods 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims 2
- 230000005284 excitation Effects 0.000 description 7
- 230000011664 signaling Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 244000019459 Cynara cardunculus Species 0.000 description 1
- 235000016520 artichoke thistle Nutrition 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/68—Circuit arrangements for preventing eavesdropping
- H04M1/70—Lock-out or secrecy arrangements in party-line systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
- H04Q5/24—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange for two-party-line systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL61314T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE440777A true BE440777A (en:Method) |
Family
ID=19756547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE440777D BE440777A (en:Method) |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE440777A (en:Method) |
| NL (1) | NL61314C (en:Method) |
-
0
- BE BE440777D patent/BE440777A/fr unknown
- NL NL61314D patent/NL61314C/xx active
Also Published As
| Publication number | Publication date |
|---|---|
| NL61314C (en:Method) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BE440777A (en:Method) | ||
| US2336866A (en) | Telephone system | |
| BE371832A (en:Method) | ||
| CH106044A (fr) | Installation téléphonique pour bureau privé annexe. | |
| US1496772A (en) | Pay-station automatic telephone system | |
| BE481072A (en:Method) | ||
| BE409407A (en:Method) | ||
| BE431601A (en:Method) | ||
| BE377986A (en:Method) | ||
| BE469508A (en:Method) | ||
| BE482829A (en:Method) | ||
| BE425916A (en:Method) | ||
| BE413526A (en:Method) | ||
| BE420586A (en:Method) | ||
| BE417701A (en:Method) | ||
| BE467644A (en:Method) | ||
| BE413033A (en:Method) | ||
| BE417423A (en:Method) | ||
| CH115005A (fr) | Installation téléphonique. | |
| BE420417A (en:Method) | ||
| BE422189A (en:Method) | ||
| BE352110A (en:Method) | ||
| BE343767A (en:Method) | ||
| BE384554A (en:Method) | ||
| BE439476A (en:Method) |