LU28524A1 - - Google Patents
Info
- Publication number
- LU28524A1 LU28524A1 LU28524DA LU28524A1 LU 28524 A1 LU28524 A1 LU 28524A1 LU 28524D A LU28524D A LU 28524DA LU 28524 A1 LU28524 A1 LU 28524A1
- Authority
- LU
- Luxembourg
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L13/00—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
- H04L13/02—Details not particular to receiver or transmitter
- H04L13/10—Distributors
- H04L13/12—Non-mechanical distributors, e.g. relay distributors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/46—Transmitting circuits; Receiving circuits using tuning forks or vibrating reeds
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- 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
- H04Q3/00—Selecting arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1002317T | 1946-09-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU28524A1 true LU28524A1 (de) |
Family
ID=9562049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU28524D LU28524A1 (de) | 1946-09-06 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE474273A (de) |
| CH (1) | CH272110A (de) |
| FR (1) | FR1002317A (de) |
| LU (1) | LU28524A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1013327B (de) * | 1953-11-30 | 1957-08-08 | Josef Dirr | Schaltungsanordnung zur UEbertragung von Kennzeichen ueber abgeriegelte Leitungen in Fernmelde-, insbesondere Fernsprechanlagen |
-
0
- LU LU28524D patent/LU28524A1/xx unknown
- BE BE474273D patent/BE474273A/xx unknown
-
1946
- 1946-09-06 FR FR1002317D patent/FR1002317A/fr not_active Expired
-
1947
- 1947-06-14 CH CH272110D patent/CH272110A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR1002317A (fr) | 1952-03-05 |
| BE474273A (de) | |
| CH272110A (fr) | 1950-11-30 |