GB466966A - Improvements in or relating to television transmitting apparatus - Google Patents
Improvements in or relating to television transmitting apparatusInfo
- Publication number
- GB466966A GB466966A GB299236A GB299236A GB466966A GB 466966 A GB466966 A GB 466966A GB 299236 A GB299236 A GB 299236A GB 299236 A GB299236 A GB 299236A GB 466966 A GB466966 A GB 466966A
- Authority
- GB
- United Kingdom
- Prior art keywords
- varying
- image
- light
- holes
- picture
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
466,966. Television. GENERAL ELECTRIC CO., Ltd., and ESPLEY, D. C. Jan. 31, 1936, Nos. 2992 and 28410. [Class 40 (iii)] Keystone distortion is removed by making the image A<1>, B<1> C<1>, D<1> on the scanning-disc geometrically dissimilar from the picture A B C D, and the holes in the disc are spaced at such unequal intervals that the lines on the image traced by consecutive holes correspond to equidistant lines on the picture. Distortion of brightness is corrected by differences in the area of the individual holes, or by material with varying absorption of light over the image, or by periodic introduction of absorbent matter in the beam of light, or by varying the intensity of the source of light, or by varying the gain of the photo-electric amplifier. Specification 466,780 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB299236A GB466966A (en) | 1936-01-31 | 1936-01-31 | Improvements in or relating to television transmitting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB299236A GB466966A (en) | 1936-01-31 | 1936-01-31 | Improvements in or relating to television transmitting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB466966A true GB466966A (en) | 1937-06-09 |
Family
ID=9749876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB299236A Expired GB466966A (en) | 1936-01-31 | 1936-01-31 | Improvements in or relating to television transmitting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB466966A (en) |
-
1936
- 1936-01-31 GB GB299236A patent/GB466966A/en not_active Expired
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