BE549791A - - Google Patents
Info
- Publication number
- BE549791A BE549791A BE549791DA BE549791A BE 549791 A BE549791 A BE 549791A BE 549791D A BE549791D A BE 549791DA BE 549791 A BE549791 A BE 549791A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Selective Calling Equipment (AREA)
- Communication Control (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL353031X | 1955-07-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE549791A true BE549791A (US07223432-20070529-C00017.png) |
Family
ID=19785112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE549791D BE549791A (US07223432-20070529-C00017.png) | 1955-07-26 |
Country Status (7)
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL124462C (US07223432-20070529-C00017.png) * | 1960-06-09 | 1968-07-15 | ||
| NL124287C (US07223432-20070529-C00017.png) * | 1960-06-09 | 1968-07-15 | ||
| NL125228C (US07223432-20070529-C00017.png) * | 1961-12-15 | 1969-01-15 | ||
| NL123421C (US07223432-20070529-C00017.png) * | 1962-01-18 | 1968-01-15 | ||
| NL276365A (US07223432-20070529-C00017.png) * | 1962-03-23 | |||
| NL280306A (US07223432-20070529-C00017.png) * | 1962-06-28 | 1964-12-10 | ||
| US3242462A (en) * | 1963-01-31 | 1966-03-22 | Ibm | Transmission systems |
| US3426323A (en) * | 1965-03-08 | 1969-02-04 | Burroughs Corp | Error correction by retransmission |
| US3483510A (en) * | 1965-03-26 | 1969-12-09 | Ericsson Telefon Ab L M | Error detecting and control device in a data transmission system |
| NL135897C (US07223432-20070529-C00017.png) * | 1965-12-03 | |||
| US3456239A (en) * | 1965-12-10 | 1969-07-15 | Teletype Corp | Block synchronization circuit for an error detection and correction system |
| US3473150A (en) * | 1966-08-10 | 1969-10-14 | Teletype Corp | Block synchronization circuit for a data communications system |
| US3452330A (en) * | 1967-07-25 | 1969-06-24 | Bell Telephone Labor Inc | Asynchronous data transmission system with error detection and retransmission |
| US3611289A (en) * | 1969-03-21 | 1971-10-05 | Digitronics Corp | Error detection apparatus |
| US3671945A (en) * | 1970-09-02 | 1972-06-20 | Honeywell Inf Systems | Data message control system |
| US3824547A (en) * | 1972-11-29 | 1974-07-16 | Sigma Syst Inc | Communications system with error detection and retransmission |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE434369A (US07223432-20070529-C00017.png) * | 1938-05-17 | |||
| US2706215A (en) * | 1950-03-24 | 1955-04-12 | Nederlanden Staat | Mnemonic system for telegraph systems and like apparatus |
| BE534009A (US07223432-20070529-C00017.png) * | 1950-11-08 |
-
0
- BE BE549791D patent/BE549791A/xx unknown
- NL NL98117D patent/NL98117C/xx active
-
1956
- 1956-07-23 CH CH353031D patent/CH353031A/de unknown
- 1956-07-24 FR FR1157351D patent/FR1157351A/fr not_active Expired
- 1956-07-24 DE DEST11456A patent/DE1091150B/de active Pending
- 1956-07-25 US US600028A patent/US2970189A/en not_active Expired - Lifetime
- 1956-07-25 GB GB22979/56A patent/GB840502A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1091150B (de) | 1960-10-20 |
| NL98117C (US07223432-20070529-C00017.png) | |
| FR1157351A (fr) | 1958-05-29 |
| GB840502A (en) | 1960-07-06 |
| US2970189A (en) | 1961-01-31 |
| CH353031A (de) | 1961-03-31 |
