FR858823A - Perfectionnements à la télévision - Google Patents
Perfectionnements à la télévisionInfo
- Publication number
- FR858823A FR858823A FR858823DA FR858823A FR 858823 A FR858823 A FR 858823A FR 858823D A FR858823D A FR 858823DA FR 858823 A FR858823 A FR 858823A
- Authority
- FR
- France
- Prior art keywords
- enhancements
- television
- television enhancements
- 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
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K4/00—Generating pulses having essentially a finite slope or stepped portions
- H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
- H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
- H03K4/10—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only
- H03K4/12—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth voltage is produced across a capacitor
- H03K4/18—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth voltage is produced across a capacitor using a single tube exhibiting negative resistance between two of its electrodes, e.g. transitron, dynatron
-
- 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
- H04N5/10—Separation of line synchronising signal from frame synchronising signal or vice versa
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Details Of Television Scanning (AREA)
- Television Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US224023A US2198969A (en) | 1938-08-10 | 1938-08-10 | Television scanning system |
Publications (1)
Publication Number | Publication Date |
---|---|
FR858823A true FR858823A (fr) | 1940-12-04 |
Family
ID=22838974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR858823D Expired FR858823A (fr) | 1938-08-10 | 1939-08-07 | Perfectionnements à la télévision |
Country Status (3)
Country | Link |
---|---|
US (1) | US2198969A (fr) |
FR (1) | FR858823A (fr) |
GB (1) | GB530227A (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE474059A (fr) * | 1944-08-25 | |||
BE465965A (fr) * | 1945-06-15 | |||
US2562216A (en) * | 1946-09-18 | 1951-07-31 | Columbia Broadcasting Syst Inc | Signal separation |
US6903944B2 (en) * | 2003-05-09 | 2005-06-07 | Mark E. Jacobs | Active clamp DC/DC converter with resonant transition system |
-
1938
- 1938-08-10 US US224023A patent/US2198969A/en not_active Expired - Lifetime
-
1939
- 1939-07-01 GB GB19208/39A patent/GB530227A/en not_active Expired
- 1939-08-07 FR FR858823D patent/FR858823A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2198969A (en) | 1940-04-30 |
GB530227A (en) | 1940-12-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR852961A (fr) | Perfectionnements à la télévision en couleurs | |
FR858823A (fr) | Perfectionnements à la télévision | |
FR841630A (fr) | Perfectionnements aux commutateurs | |
FR49831E (fr) | Perfectionnements aux sulfateuses | |
FR859550A (fr) | Ski à arêtes métalliques | |
FR49863E (fr) | Perfectionnements aux paniers à salade | |
FR838485A (fr) | Métier à tisser | |
FR840432A (fr) | Appareillage de télévision | |
FR842373A (fr) | Hydro-éjecteur à multiple effet | |
FR851937A (fr) | Pulvérisateur-diffuseur à disque | |
FR988438A (fr) | Perfectionnements à la radiovision | |
FR844173A (fr) | Métier à tisser | |
FR841119A (fr) | Perfectionnements aux commutateurs combinés | |
FR846302A (fr) | Instrument à dessiner | |
FR849124A (fr) | Interrupteur à distance | |
FR838881A (fr) | Boîte à pansement | |
FR874739A (fr) | Isolateur | |
FR856677A (fr) | Perfectionnements à la soudure | |
FR839143A (fr) | Perfectionnements aux vaporisateurs | |
FR841546A (fr) | Transmission à poulies | |
FR846538A (fr) | Meuble à double destination | |
FR833433A (fr) | Perfectionnements aux épingles à cheveux | |
FR853085A (fr) | Porte-mine à poussoir | |
FR832736A (fr) | Inhalateur à main | |
FR913072A (fr) | Perfectionnement à la réfrigération |