FR680670A - Perfectionnements aux systèmes de télévision - Google Patents
Perfectionnements aux systèmes de télévisionInfo
- Publication number
- FR680670A FR680670A FR680670DA FR680670A FR 680670 A FR680670 A FR 680670A FR 680670D A FR680670D A FR 680670DA FR 680670 A FR680670 A FR 680670A
- Authority
- FR
- France
- Prior art keywords
- television systems
- television
- 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
- H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
- H04N3/02—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only
- H04N3/04—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only having a moving aperture also apertures covered by lenses
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/07—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on electro-optical liquids exhibiting Kerr effect
-
- 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
- H04N5/067—Arrangements or circuits at the transmitter end
- H04N5/073—Arrangements or circuits at the transmitter end for mutually locking plural sources of synchronising signals, e.g. studios or relay stations
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US312654XA | 1928-05-29 | 1928-05-29 | |
US295006A US1783031A (en) | 1928-07-24 | 1928-07-24 | Transmission of pictures |
US317831XA | 1928-08-23 | 1928-08-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR680670A true FR680670A (fr) | 1930-05-05 |
Family
ID=27363833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR680670D Expired FR680670A (fr) | 1928-05-29 | 1929-05-28 | Perfectionnements aux systèmes de télévision |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR680670A (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE944557C (de) * | 1932-07-19 | 1956-06-21 | Rca Corp | Tonfilmfernuebertragungssystem mit Lochscheibenabtastung und Wiedergabe durch Braun'sche Roehre |
DE1295617B (de) * | 1965-07-07 | 1969-05-22 | Herz Friedrich | Verfahren zum UEbertragen von Fernseh-Videosignalen |
-
1929
- 1929-05-28 FR FR680670D patent/FR680670A/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE944557C (de) * | 1932-07-19 | 1956-06-21 | Rca Corp | Tonfilmfernuebertragungssystem mit Lochscheibenabtastung und Wiedergabe durch Braun'sche Roehre |
DE1295617B (de) * | 1965-07-07 | 1969-05-22 | Herz Friedrich | Verfahren zum UEbertragen von Fernseh-Videosignalen |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR680894A (fr) | Perfectionnements aux systèmes de réfrigération | |
FR671055A (fr) | Perfectionnements aux systèmes téléphoniques | |
FR637801A (fr) | Perfectionnements aux systèmes de télévision | |
FR654076A (fr) | Perfectionnements aux systèmes de télévision | |
FR714881A (fr) | Perfectionnements aux systèmes de télévision | |
FR37802E (fr) | Perfectionnements aux systèmes téléphoniques | |
FR701306A (fr) | Perfectionnements aux systèmes de télévision | |
FR39593E (fr) | Perfectionnements aux systèmes de télévision | |
FR680670A (fr) | Perfectionnements aux systèmes de télévision | |
FR654751A (fr) | Perfectionnements aux systèmes de télévision | |
FR654754A (fr) | Perfectionnements aux systèmes de télévision | |
FR39590E (fr) | Perfectionnements aux systèmes de télévision | |
FR38030E (fr) | Perfectionnements aux systèmes de télévision | |
FR680025A (fr) | Perfectionnements aux systèmes téléphoniques | |
FR652125A (fr) | Perfectionnements aux systèmes de télévision | |
FR39339E (fr) | Perfectionnements aux systèmes de télévision | |
FR39338E (fr) | Perfectionnements aux systèmes de télévision | |
FR39111E (fr) | Perfectionnements aux systèmes de télévision | |
FR679962A (fr) | Perfectionnements aux systèmes de changements de prises | |
FR683358A (fr) | Perfectionnements aux systèmes téléphoniques automatiques | |
FR699117A (fr) | Perfectionnements aux systèmes de télévision | |
FR684375A (fr) | Perfectionnements aux systèmes téléphoniques | |
FR645998A (fr) | Perfectionnements aux systèmes de télévision | |
FR650668A (fr) | Perfectionnements aux systèmes de télévision | |
FR724404A (fr) | Perfectionnements aux systèmes de télévision |