BE506940A - - Google Patents
Info
- Publication number
- BE506940A BE506940A BE506940DA BE506940A BE 506940 A BE506940 A BE 506940A BE 506940D A BE506940D A BE 506940DA BE 506940 A BE506940 A BE 506940A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Selective Calling Equipment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2087451A GB778843A (en) | 1951-09-04 | 1951-09-04 | Type printing telegraph system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE506940A true BE506940A (zh) |
Family
ID=10153192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE506940D BE506940A (zh) | 1951-09-04 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE506940A (zh) |
| CH (1) | CH315056A (zh) |
| FR (1) | FR1063024A (zh) |
| GB (1) | GB778843A (zh) |
| NL (3) | NL234011A (zh) |
-
0
- BE BE506940D patent/BE506940A/xx unknown
- NL NL7411686.B patent/NL163732B/xx unknown
- NL NL100078D patent/NL100078C/xx active
- NL NL234011D patent/NL234011A/xx unknown
-
1951
- 1951-09-04 GB GB2087451A patent/GB778843A/en not_active Expired
- 1951-11-06 CH CH315056D patent/CH315056A/fr unknown
- 1951-11-16 FR FR1063024D patent/FR1063024A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH315056A (fr) | 1956-07-15 |
| NL163732B (nl) | |
| NL234011A (zh) | |
| GB778843A (en) | 1957-07-10 |
| NL100078C (zh) | |
| FR1063024A (fr) | 1954-04-29 |