BE491564A - - Google Patents
Info
- Publication number
- BE491564A BE491564A BE491564DA BE491564A BE 491564 A BE491564 A BE 491564A BE 491564D A BE491564D A BE 491564DA BE 491564 A BE491564 A BE 491564A
- Authority
- BE
- Belgium
- Prior art keywords
- carrier
- current
- relay
- line
- frequency
- Prior art date
Links
- 230000011664 signaling Effects 0.000 claims description 25
- 238000004891 communication Methods 0.000 claims description 13
- 230000001755 vocal effect Effects 0.000 claims description 2
- 239000004020 conductor Substances 0.000 description 23
- 239000003990 capacitor Substances 0.000 description 11
- 238000004804 winding Methods 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 7
- 230000000295 complement effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000010355 oscillation Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
- H04Q1/442—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies
- H04Q1/4423—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies using one signalling frequency
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/14—Arrangements providing for calling or supervisory signals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE491564A true BE491564A (cs) |
Family
ID=136002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE491564D BE491564A (cs) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE491564A (cs) |
-
0
- BE BE491564D patent/BE491564A/fr unknown
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