FR742671A - - Google Patents
Info
- Publication number
- FR742671A FR742671A FR742671DA FR742671A FR 742671 A FR742671 A FR 742671A FR 742671D A FR742671D A FR 742671DA FR 742671 A FR742671 A FR 742671A
- 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
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
- H04N5/12—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising
- H04N5/123—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising whereby the synchronisation signal directly commands a frequency generator
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
- H04N5/06—Generation of synchronising signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
- H04N5/08—Separation of synchronising signals from picture signals
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Systems (AREA)
- Closed-Circuit Television Systems (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US565953A US2178758A (en) | 1931-09-30 | 1931-09-30 | Television system |
Publications (1)
Publication Number | Publication Date |
---|---|
FR742671A true FR742671A (en) | 1933-03-13 |
Family
ID=24260799
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR742671D Expired FR742671A (en) | 1931-09-30 |
Country Status (4)
Country | Link |
---|---|
US (1) | US2178758A (en) |
DE (1) | DE641094C (en) |
FR (1) | FR742671A (en) |
GB (1) | GB407409A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE740116C (en) * | 1934-12-02 | 1943-10-12 | Opta Radio Ag | Arrangement for the optical-electrical generation of synchronization characters in television |
DE754288C (en) * | 1933-08-08 | 1952-07-17 | Emi Ltd | Synchronization method for television purposes using pulses of the same amplitude and different duration |
DE754557C (en) * | 1935-01-15 | 1952-12-01 | Emi Ltd | Circuit arrangement for the separation of pulses of different duration by converting them into pulses of different amplitudes |
DE754289C (en) * | 1934-08-31 | 1953-02-02 | Emi Ltd | Process for the production of picture change or line train change pulses lasting several line periods for television transmissions with continuous line synchronization |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE743485C (en) * | 1934-06-08 | 1943-12-27 | Opta Radio Ag | Arrangement for generating synchronizing pulses and for inserting them into the picture signal sequence in television broadcasts |
DE741786C (en) * | 1936-07-17 | 1943-11-17 | Opta Radio Ag | Television scanning arrangement in which the light beam scanning the image is also used to generate synchronizing characters |
US2510070A (en) * | 1945-05-18 | 1950-06-06 | Farnsworth Res Corp | Television scanning system |
-
0
- FR FR742671D patent/FR742671A/fr not_active Expired
-
1931
- 1931-09-30 US US565953A patent/US2178758A/en not_active Expired - Lifetime
-
1932
- 1932-09-22 GB GB26385/32A patent/GB407409A/en not_active Expired
- 1932-09-22 DE DER85976D patent/DE641094C/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE754288C (en) * | 1933-08-08 | 1952-07-17 | Emi Ltd | Synchronization method for television purposes using pulses of the same amplitude and different duration |
DE754289C (en) * | 1934-08-31 | 1953-02-02 | Emi Ltd | Process for the production of picture change or line train change pulses lasting several line periods for television transmissions with continuous line synchronization |
DE916178C (en) * | 1934-08-31 | 1954-08-05 | Emi Ltd | Synchronization method for the transmission of an image that has been scanned interlaced with lines being added |
DE740116C (en) * | 1934-12-02 | 1943-10-12 | Opta Radio Ag | Arrangement for the optical-electrical generation of synchronization characters in television |
DE754557C (en) * | 1935-01-15 | 1952-12-01 | Emi Ltd | Circuit arrangement for the separation of pulses of different duration by converting them into pulses of different amplitudes |
Also Published As
Publication number | Publication date |
---|---|
GB407409A (en) | 1934-03-22 |
US2178758A (en) | 1939-11-07 |
DE641094C (en) | 1937-01-19 |