DK136048C - - Google Patents
Info
- Publication number
- DK136048C DK136048C DK362768A DK362768A DK136048C DK 136048 C DK136048 C DK 136048C DK 362768 A DK362768 A DK 362768A DK 362768 A DK362768 A DK 362768A DK 136048 C DK136048 C DK 136048C
- Authority
- DK
- Denmark
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
- H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
- H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
- H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Noise Elimination (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES0111063 | 1967-07-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DK136048B DK136048B (da) | 1977-08-01 |
| DK136048C true DK136048C (da) | 1978-01-23 |
Family
ID=7530706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK362768A DK136048B (da) | 1967-07-28 | 1968-07-26 | Kobling til regulerede flerfrekvensmodtagere i fjernmeldingsanlæg, navnlig telefonanlæg. |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1537812B1 (da) |
| DK (1) | DK136048B (da) |
| FI (1) | FI54667C (da) |
-
1967
- 1967-07-28 DE DE19671537812 patent/DE1537812B1/de not_active Withdrawn
-
1968
- 1968-07-26 FI FI212768A patent/FI54667C/fi active
- 1968-07-26 DK DK362768A patent/DK136048B/da unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FI54667C (fi) | 1979-01-10 |
| DE1537812B1 (de) | 1970-06-25 |
| DK136048B (da) | 1977-08-01 |
| FI54667B (fi) | 1978-09-29 |