SE369019B - - Google Patents
Info
- Publication number
- SE369019B SE369019B SE266472A SE266472A SE369019B SE 369019 B SE369019 B SE 369019B SE 266472 A SE266472 A SE 266472A SE 266472 A SE266472 A SE 266472A SE 369019 B SE369019 B SE 369019B
- Authority
- SE
- Sweden
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/515—Devices for calling a subscriber by generating or selecting signals other than trains of pulses of similar shape, or signals other than currents of one or more different frequencies, e.g. generation of DC signals of alternating polarity, coded pulses or impedance dialling
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephonic Communication Services (AREA)
- Time-Division Multiplex Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712109909 DE2109909C (de) | 1971-03-02 | Digitales Tastwahlsystem für mit Deltamodulation arbeitende Fernsprech-Teilnehmerstellen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE369019B true SE369019B (enExample) | 1974-07-29 |
Family
ID=5800298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE266472A SE369019B (enExample) | 1971-03-02 | 1972-03-02 |
Country Status (9)
| Country | Link |
|---|---|
| AT (1) | AT323813B (enExample) |
| BE (1) | BE780132A (enExample) |
| CH (1) | CH537133A (enExample) |
| FR (1) | FR2127852A5 (enExample) |
| GB (1) | GB1315927A (enExample) |
| IT (1) | IT949746B (enExample) |
| LU (1) | LU64863A1 (enExample) |
| NL (1) | NL7202120A (enExample) |
| SE (1) | SE369019B (enExample) |
-
1972
- 1972-02-04 CH CH167372A patent/CH537133A/de not_active IP Right Cessation
- 1972-02-17 AT AT131172A patent/AT323813B/de not_active IP Right Cessation
- 1972-02-17 NL NL7202120A patent/NL7202120A/xx unknown
- 1972-02-29 FR FR7206777A patent/FR2127852A5/fr not_active Expired
- 1972-02-29 LU LU64863D patent/LU64863A1/xx unknown
- 1972-03-01 GB GB945972A patent/GB1315927A/en not_active Expired
- 1972-03-01 IT IT2124072A patent/IT949746B/it active
- 1972-03-02 SE SE266472A patent/SE369019B/xx unknown
- 1972-03-02 BE BE780132A patent/BE780132A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2109909A1 (enExample) | 1972-08-24 |
| CH537133A (de) | 1973-05-15 |
| DE2109909B2 (de) | 1972-08-24 |
| GB1315927A (en) | 1973-05-09 |
| AT323813B (de) | 1975-07-25 |
| LU64863A1 (enExample) | 1972-07-05 |
| FR2127852A5 (enExample) | 1972-10-13 |
| BE780132A (fr) | 1972-09-04 |
| IT949746B (it) | 1973-06-11 |
| NL7202120A (enExample) | 1972-09-05 |