BE704494A - - Google Patents
Info
- Publication number
- BE704494A BE704494A BE704494DA BE704494A BE 704494 A BE704494 A BE 704494A BE 704494D A BE704494D A BE 704494DA BE 704494 A BE704494 A BE 704494A
- 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
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
-
- 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
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/30—Systems using multi-frequency codes wherein each code element is represented by a combination of frequencies
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Communication Control (AREA)
- Selective Calling Equipment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES106281A DE1288628B (de) | 1966-09-30 | 1966-09-30 | Verfahren und Schaltungsanordnung zur gesicherten UEbertragung von kodierten Nachrichtenzeichen, wobei jedes Nachrichtenzeichen durch zwei oder mehr Modulationsmerkmale uebertragen wird |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE704494A true BE704494A (https=) | 1968-03-29 |
Family
ID=7527287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE704494D BE704494A (https=) | 1966-09-30 | 1967-09-29 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3593279A (https=) |
| AT (1) | AT278159B (https=) |
| BE (1) | BE704494A (https=) |
| CH (1) | CH468754A (https=) |
| DE (1) | DE1288628B (https=) |
| GB (1) | GB1180078A (https=) |
| NL (1) | NL6713293A (https=) |
| SE (1) | SE319531B (https=) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3713095A (en) * | 1971-03-16 | 1973-01-23 | Bell Telephone Labor Inc | Data processor sequence checking circuitry |
| US3962646A (en) * | 1972-09-07 | 1976-06-08 | Motorola, Inc. | Squelch circuit for a digital system |
| DE3773177D1 (de) * | 1987-02-05 | 1991-10-24 | Alcatel Bell Sdt Sa | Verfahren zur uebertragungsfehler-erkennung und -korrektur. |
| US6023779A (en) * | 1996-01-18 | 2000-02-08 | Pocketscience, Inc. | Electronic, acoustical tone generating communications system and method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR960755A (https=) * | 1943-12-18 | 1950-04-25 | ||
| US3260994A (en) * | 1962-12-28 | 1966-07-12 | Bell Telephone Labor Inc | Multifrequency pulse transmission system |
| US3459927A (en) * | 1965-10-18 | 1969-08-05 | Ibm | Apparatus for checking logical connective circuits |
-
1966
- 1966-09-30 DE DES106281A patent/DE1288628B/de active Pending
-
1967
- 1967-06-30 SE SE9836/67*A patent/SE319531B/xx unknown
- 1967-09-28 CH CH1358367A patent/CH468754A/de unknown
- 1967-09-28 US US671264A patent/US3593279A/en not_active Expired - Lifetime
- 1967-09-28 AT AT882467A patent/AT278159B/de not_active IP Right Cessation
- 1967-09-29 NL NL6713293A patent/NL6713293A/xx unknown
- 1967-09-29 BE BE704494D patent/BE704494A/xx unknown
- 1967-09-29 GB GB44344/67A patent/GB1180078A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AT278159B (de) | 1970-01-26 |
| GB1180078A (en) | 1970-02-04 |
| NL6713293A (https=) | 1968-04-01 |
| SE319531B (https=) | 1970-01-19 |
| US3593279A (en) | 1971-07-13 |
| DE1288628B (de) | 1969-02-06 |
| CH468754A (de) | 1969-02-15 |