BE484423A - - Google Patents
Info
- Publication number
- BE484423A BE484423A BE484423DA BE484423A BE 484423 A BE484423 A BE 484423A BE 484423D A BE484423D A BE 484423DA BE 484423 A BE484423 A BE 484423A
- Authority
- BE
- Belgium
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
- H03K4/48—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices
- H03K4/50—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor
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- 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
- H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
- H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
- H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
- H04N3/227—Centering
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US770982A US2494457A (en) | 1947-08-28 | 1947-08-28 | Centering circuit for television receivers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE484423A true BE484423A (en:Method) |
Family
ID=25090320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE484423D BE484423A (en:Method) | 1947-08-28 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2494457A (en:Method) |
| BE (1) | BE484423A (en:Method) |
| FR (1) | FR970351A (en:Method) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2779894A (en) * | 1954-03-15 | 1957-01-29 | Servo Corp Of America | Automatic beam-centering circuit for cathode-ray devices |
| US3350600A (en) * | 1965-05-24 | 1967-10-31 | William J Hannan | Rc circuit means to compensate for defocusing of a pulsed image intensifier |
| US3436592A (en) * | 1965-06-11 | 1969-04-01 | Hazeltine Research Inc | Focus control apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2426439A (en) * | 1943-10-08 | 1947-08-26 | Gen Electric | Signal portraying apparatus |
-
0
- BE BE484423D patent/BE484423A/xx unknown
-
1947
- 1947-08-28 US US770982A patent/US2494457A/en not_active Expired - Lifetime
-
1948
- 1948-08-13 FR FR970351D patent/FR970351A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR970351A (fr) | 1951-01-03 |
| US2494457A (en) | 1950-01-10 |