FR925710A - Perfectionnements aux systèmes de signalisation - Google Patents
Perfectionnements aux systèmes de signalisationInfo
- Publication number
- FR925710A FR925710A FR925710DA FR925710A FR 925710 A FR925710 A FR 925710A FR 925710D A FR925710D A FR 925710DA FR 925710 A FR925710 A FR 925710A
- Authority
- FR
- France
- Prior art keywords
- signaling systems
- signaling
- systems
- Prior art date
- 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
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
- H04N7/084—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the horizontal blanking interval only
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Receiver Circuits (AREA)
- Television Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US589338A US2486498A (en) | 1945-04-20 | 1945-04-20 | Means for preventing cross talk in sound-vision systems |
Publications (1)
Publication Number | Publication Date |
---|---|
FR925710A true FR925710A (fr) | 1947-09-11 |
Family
ID=24357607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR925710D Expired FR925710A (fr) | 1945-04-20 | 1946-04-17 | Perfectionnements aux systèmes de signalisation |
Country Status (3)
Country | Link |
---|---|
US (1) | US2486498A (fr) |
FR (1) | FR925710A (fr) |
GB (1) | GB612533A (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE469699A (fr) * | 1945-09-27 | |||
FR2168188B1 (fr) * | 1972-01-19 | 1974-07-26 | Cit Alcatel | |
EP0039385A3 (fr) * | 1980-02-08 | 1981-12-02 | FALCONI COSTRUZIONI IMPIANTI S.p.A. | Transmission de signaux vidéo et autres ainsi que d'un message de retour par un seul câble non blindé à deux fils |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2103362A (en) * | 1933-06-13 | 1937-12-28 | Rca Corp | Ultrahigh frequency magnetron oscillator |
US2209395A (en) * | 1934-12-07 | 1940-07-30 | Ibm | Signaling system |
US2153178A (en) * | 1934-12-07 | 1939-04-04 | Ibm | Method of and means for signaling |
US2086918A (en) * | 1935-08-22 | 1937-07-13 | Rca Corp | Method of frequency or phase modulation |
US2227108A (en) * | 1936-02-20 | 1940-12-31 | Telefunken Gmbh | Signaling system |
US2268001A (en) * | 1938-11-19 | 1941-12-30 | Fernseh Gmbh | Television transmission system |
US2291277A (en) * | 1939-11-18 | 1942-07-28 | Hazeltine Corp | Television signal-translating channel |
GB581561A (en) * | 1940-06-17 | 1946-10-17 | Alan Dower Blumlein | Improvements in or relating to pulse generating thermionic valve apparatus |
US2326515A (en) * | 1940-08-03 | 1943-08-10 | Gen Electric | Television system |
US2300942A (en) * | 1940-12-28 | 1942-11-03 | Hazeltine Corp | Television carrier-signal receiver control system |
US2408076A (en) * | 1941-08-12 | 1946-09-24 | Int Standard Electric Corp | Pulse transmitter |
US2350902A (en) * | 1941-08-27 | 1944-06-06 | Rca Corp | Television system |
US2355566A (en) * | 1941-12-31 | 1944-08-08 | Rca Corp | Television system |
US2370685A (en) * | 1942-02-28 | 1945-03-06 | Bell Telephone Labor Inc | Electrical timing circuit |
US2392114A (en) * | 1943-01-23 | 1946-01-01 | Gen Electric | Pulse system |
US2391776A (en) * | 1943-05-29 | 1945-12-25 | Rca Corp | Intelligence transmission system |
BE465456A (fr) * | 1944-07-17 |
-
1945
- 1945-04-20 US US589338A patent/US2486498A/en not_active Expired - Lifetime
-
1946
- 1946-04-13 GB GB12095/46A patent/GB612533A/en not_active Expired
- 1946-04-17 FR FR925710D patent/FR925710A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2486498A (en) | 1949-11-01 |
GB612533A (en) | 1948-11-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR930399A (fr) | Perfectionnements aux dispositifs à retardement notamment pour systèmes de signalisation | |
FR926079A (fr) | Perfectionnements aux systèmes téléphoniques à courants porteurs | |
FR950430A (fr) | Perfectionnements aux systèmes indicateurs radio-directionnels | |
FR941633A (fr) | Perfectionnements aux systèmes de communications et de signalisation | |
FR938252A (fr) | Perfectionnements aux systèmes de communication et de signalisation | |
FR909949A (fr) | Perfectionnements aux systèmes de télévision | |
FR926650A (fr) | Perfectionnements aux systèmes de signalisation à voies multiples | |
FR925710A (fr) | Perfectionnements aux systèmes de signalisation | |
FR938282A (fr) | Perfectionnements aux systèmes de communication | |
FR996510A (fr) | Perfectionnements aux systèmes de signalisation | |
FR950997A (fr) | Systèmes de signalisation secrète | |
FR948715A (fr) | Perfectionnements aux systèmes de signalisation radio-électriques dirigés | |
FR997298A (fr) | Perfectionnements apportés aux systèmes de signalisation, notamment aux systèmes de signalisation à distance | |
FR938525A (fr) | Perfectionnements aux télégraphes ou systèmes de signalisateurs analogues | |
FR939116A (fr) | Perfectionnements aux systèmes de signalisation par impulsions | |
FR970488A (fr) | Systèmes de signalisation | |
FR929395A (fr) | Perfectionnements aux systèmes de signalisation | |
FR930641A (fr) | Perfectionnements aux systèmes électriques de communication | |
FR1089283A (fr) | Perfectionnements aux systèmes de signalisation | |
FR912213A (fr) | Perfectionnements aux systèmes de modulation | |
FR934920A (fr) | Perfectionnements aux systèmes de signalisation électrique | |
FR924958A (fr) | Perfectionnements aux systèmes de signalisation électrique | |
FR953780A (fr) | Systèmes électriques de signalisation | |
FR55114E (fr) | Systèmes de signalisation | |
FR923283A (fr) | Systèmes de signalisation |