GB910021A - Improvements in electronic scanning systems - Google Patents
Improvements in electronic scanning systemsInfo
- Publication number
- GB910021A GB910021A GB36235/58A GB3623558A GB910021A GB 910021 A GB910021 A GB 910021A GB 36235/58 A GB36235/58 A GB 36235/58A GB 3623558 A GB3623558 A GB 3623558A GB 910021 A GB910021 A GB 910021A
- Authority
- GB
- United Kingdom
- Prior art keywords
- beam current
- tube
- mosaic
- synchronized
- uninterrupted
- 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
- 230000005855 radiation Effects 0.000 abstract 2
- 230000001360 synchronised effect Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000002688 persistence Effects 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/40—Circuit details for pick-up tubes
- H04N23/41—Beam current control
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
910,021. Cathode-ray tube operating circuits. ELTRO G.m.b.H. Nov. 11, 1958 [Feb. 20, 1958], No. 36235/58. Drawings to Specification. Class 40 (7). [Also in Groups XL (a) and XL (b)] In an electronic scanning system employing a pick-up tube of the kind utilizing the variation in resistivity with applied radiation of a mosaic of semi-conductor material, a rectangular-waveform generator is synchronized with a tube beam deflection signal generator so as to interrupt the beam current periodically in such a manner that following each scanning of any part of an image with the beam current uninterrupted, at least the next time that the deflection signal corresponds to that part of the image, the beam current is interrupted. Blurring of moving objects on reconstituted images, due to persistence of the effect of radiation on the mosaic, is thus avoided. The beam interruption may be synchronized with either line or frame deflection. Beam intensity during scanning may be controlled to vary inversely as the recurrence factor of the periods of uninterrupted beam current.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEE0015394 | 1958-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB910021A true GB910021A (en) | 1962-11-07 |
Family
ID=7069025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB36235/58A Expired GB910021A (en) | 1958-02-20 | 1958-11-11 | Improvements in electronic scanning systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB910021A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0087296A2 (en) * | 1982-02-23 | 1983-08-31 | Ampex Corporation | Apparatus and method for generating high quality pictures under low light conditions |
-
1958
- 1958-11-11 GB GB36235/58A patent/GB910021A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0087296A2 (en) * | 1982-02-23 | 1983-08-31 | Ampex Corporation | Apparatus and method for generating high quality pictures under low light conditions |
| EP0087296A3 (en) * | 1982-02-23 | 1986-12-30 | Ampex Corporation | Apparatus and method for generating optimizing pictures under low light conditions |
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