GB445894A - Improvements in or relating to television and like scanning systems - Google Patents
Improvements in or relating to television and like scanning systemsInfo
- Publication number
- GB445894A GB445894A GB3004934A GB3004934A GB445894A GB 445894 A GB445894 A GB 445894A GB 3004934 A GB3004934 A GB 3004934A GB 3004934 A GB3004934 A GB 3004934A GB 445894 A GB445894 A GB 445894A
- Authority
- GB
- United Kingdom
- Prior art keywords
- television
- scanned
- disc
- positions
- house
- 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
- 229910052754 neon Inorganic materials 0.000 abstract 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 abstract 1
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
- H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
- H04N3/30—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical otherwise than with constant velocity or otherwise than in pattern formed by unidirectional, straight, substantially horizontal or vertical lines
- H04N3/34—Elemental scanning area oscillated rapidly in direction transverse to main scanning direction
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Inorganic Fibers (AREA)
- Geophysics And Detection Of Objects (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
445,894. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, and DOWSETT, H. M., 47, Drayton Gardens, Winchmore Hill, both in London, and WALKER, L. E. Q., Devon House, Townsend Drive, St. Albans, Hertfordshire. Oct. 19, 1934, No. 30049. [Class 40 (iii)] An image of a subject 3 is projected to two positions 7, 11, which are scanned in parallel lines in different directions by a scanning-disc 1 and are made alternately operative. The positions are on radii perpendicular to one another, and are scanned by a spiral of apertures or lenses. The two photo-electric cells 12, 13 and their amplifiers are rendered alternately operative by a commutator 15 driven with the disc at half its speed. In the receiver the cells are replaced by neon lamps.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3004934A GB445894A (en) | 1934-10-19 | 1934-10-19 | Improvements in or relating to television and like scanning systems |
| DEM132364D DE677700C (en) | 1934-10-19 | 1935-10-16 | Scanning device for television stations with periodic change in scanning direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3004934A GB445894A (en) | 1934-10-19 | 1934-10-19 | Improvements in or relating to television and like scanning systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB445894A true GB445894A (en) | 1936-04-20 |
Family
ID=10301425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3004934A Expired GB445894A (en) | 1934-10-19 | 1934-10-19 | Improvements in or relating to television and like scanning systems |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE677700C (en) |
| GB (1) | GB445894A (en) |
-
1934
- 1934-10-19 GB GB3004934A patent/GB445894A/en not_active Expired
-
1935
- 1935-10-16 DE DEM132364D patent/DE677700C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE677700C (en) | 1939-06-30 |
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