FR2448816B1 - - Google Patents
Info
- Publication number
- FR2448816B1 FR2448816B1 FR8002587A FR8002587A FR2448816B1 FR 2448816 B1 FR2448816 B1 FR 2448816B1 FR 8002587 A FR8002587 A FR 8002587A FR 8002587 A FR8002587 A FR 8002587A FR 2448816 B1 FR2448816 B1 FR 2448816B1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/002—Transmission systems not characterised by the medium used for transmission characterised by the use of a carrier modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00095—Systems or arrangements for the transmission of the picture signal
- H04N1/00103—Systems or arrangements for the transmission of the picture signal specially adapted for radio transmission, e.g. via satellites
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Transmitters (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH122579A CH645489A5 (de) | 1979-02-08 | 1979-02-08 | Verfahren und schaltungsanordnung zur zeichenuebertragung mittels amplitudenmodulierten rundfunkeinrichtungen. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2448816A1 FR2448816A1 (fr) | 1980-09-05 |
| FR2448816B1 true FR2448816B1 (US07754670-20100713-C00008.png) | 1984-01-13 |
Family
ID=4205412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8002587A Granted FR2448816A1 (fr) | 1979-02-08 | 1980-02-06 | Procede et circuit de transmission de caracteres a l'aide d'installations de radiodiffusion a modulation d'amplitude |
Country Status (6)
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4679238A (en) * | 1985-04-25 | 1987-07-07 | Blaupunkt Werke Gmbh | Method and system for signalling additional information by AM medium wave broadcasting |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2164032A (en) * | 1930-02-14 | 1939-06-27 | Albert V T Day | Carrier wave signaling |
| GB668000A (en) * | 1949-03-31 | 1952-03-12 | Faximile Inc | Duplex signalling system for sound and facsimile |
| NL175913B (nl) * | 1953-02-09 | Degussa | Verbetering van de werkwijze voor het bereiden van d,l-penicillamine en aminezouten hiervan. | |
| US2808508A (en) * | 1953-12-31 | 1957-10-01 | Hupp Corp | Receiver for a. m. speech channel having means to eliminate effects of superimposed frequency shift keying |
| NL267711A (US07754670-20100713-C00008.png) * | 1960-08-15 | |||
| US3160812A (en) * | 1961-11-09 | 1964-12-08 | Scantlin Electronics Inc | Composite transmission system utilizing phase shift and amplitude modulation |
| GB1023963A (en) * | 1963-09-24 | 1966-03-30 | Scantlin Electronics Inc | Information transmission system for use with an a.m. radio transmitter |
| GB1127983A (en) * | 1966-02-04 | 1968-09-25 | Gen Electric Co Ltd | Improvements in or relating to electric switching circuits |
| US3553367A (en) * | 1968-05-10 | 1971-01-05 | Litton Systems Inc | Facsimile multiplex communication system |
| US3706842A (en) * | 1971-02-01 | 1972-12-19 | Magnavox Co | Method to double transmission speed of telephone network facsimile |
| JPS4940003A (US07754670-20100713-C00008.png) * | 1972-08-15 | 1974-04-15 | ||
| DE2355991A1 (de) * | 1972-12-29 | 1974-07-04 | Ibm | Empfaenger fuer verschachtelte texte |
| US3916344A (en) * | 1974-09-16 | 1975-10-28 | Motorola Inc | Direct FM modulated high frequency oscillator having selectively controllable frequency deviation sensitivity |
| DE2529386C3 (de) * | 1975-07-02 | 1980-04-03 | Institut Fuer Rundfunktechnik Gmbh, 8000 Muenchen | Verfahren zur zusätzlichen Übertragung von Daten, Fernwirksignalen o.a. über einen FM-Stereo-Rundfunksender |
| US4088968A (en) * | 1976-11-08 | 1978-05-09 | Rca Corporation | Frequency linearization and sensitivity equalization of a frequency modulated crystal oscillator |
-
1979
- 1979-02-08 CH CH122579A patent/CH645489A5/de not_active IP Right Cessation
- 1979-03-07 DE DE2908857A patent/DE2908857C2/de not_active Expired
-
1980
- 1980-02-06 FR FR8002587A patent/FR2448816A1/fr active Granted
- 1980-02-06 GB GB8004007A patent/GB2043403B/en not_active Expired
- 1980-02-08 JP JP1376380A patent/JPS55136738A/ja active Granted
-
1983
- 1983-11-17 US US06/552,021 patent/US4489411A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| FR2448816A1 (fr) | 1980-09-05 |
| GB2043403B (en) | 1983-08-17 |
| JPH0222578B2 (US07754670-20100713-C00008.png) | 1990-05-21 |
| GB2043403A (en) | 1980-10-01 |
| JPS55136738A (en) | 1980-10-24 |
| DE2908857A1 (de) | 1980-08-14 |
| CH645489A5 (de) | 1984-09-28 |
| DE2908857C2 (de) | 1986-06-26 |
| US4489411A (en) | 1984-12-18 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |