SE300447B - - Google Patents
Info
- Publication number
- SE300447B SE300447B SE345161A SE345161A SE300447B SE 300447 B SE300447 B SE 300447B SE 345161 A SE345161 A SE 345161A SE 345161 A SE345161 A SE 345161A SE 300447 B SE300447 B SE 300447B
- Authority
- SE
- Sweden
Links
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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES67855A DE1120527B (de) | 1960-03-31 | 1960-03-31 | Mehrkanal-Nachrichtenuebertragungssystem mit von Hoch- und Tiefpegelstroemen beeinflusster, systemeigener Wahleinrichtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE300447B true SE300447B (de) | 1968-04-29 |
Family
ID=7499868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE345161A SE300447B (de) | 1960-03-31 | 1961-03-30 |
Country Status (3)
| Country | Link |
|---|---|
| BE (2) | BE622951A (de) |
| DE (1) | DE1120527B (de) |
| SE (1) | SE300447B (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1228314B (de) * | 1964-05-29 | 1966-11-10 | Siemens Ag | Mehrkanalnachrichtenuebertragungssystem |
-
0
- BE BE602100D patent/BE602100A/xx unknown
- BE BE622951D patent/BE622951A/xx unknown
-
1960
- 1960-03-31 DE DES67855A patent/DE1120527B/de active Pending
-
1961
- 1961-03-30 SE SE345161A patent/SE300447B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1120527B (de) | 1961-12-28 |
| BE602100A (de) | |
| BE622951A (de) |