GB289307A - Improvements in or relating to television and like systems - Google Patents
Improvements in or relating to television and like systemsInfo
- Publication number
- GB289307A GB289307A GB20968/27A GB2096827A GB289307A GB 289307 A GB289307 A GB 289307A GB 20968/27 A GB20968/27 A GB 20968/27A GB 2096827 A GB2096827 A GB 2096827A GB 289307 A GB289307 A GB 289307A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strips
- holes
- disc
- image
- exploration
- 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
- H04N3/10—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
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/7605—Television signal recording on discs or drums
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Optical Recording Or Reproduction (AREA)
- Facsimiles In General (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
- Optical Elements Other Than Lenses (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Optical Communication System (AREA)
- Time-Division Multiplex Systems (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
289,307. Television, Ltd., and Baird, J. L. Oct. 15, 1926. Divided on 289,104. Television.-In a system for effecting exploration of the image or screen along parallel strips by the use of one or more rotating discs provided with slots, holes, lenses, or mirrors, the component of exploration laterally of the strips may be periodically changed in direction, e.g. may be reversed for each successive transversal, or the inclination to a datum line of the strips may be changed for different, e.g. successive, traversals, or images produced by simultaneous explorations in different directions may be superposed. Fig. 1 shows an arrangement for exploring an image 17 by two sets of holes in a rotary disc 10, the sets being arranged along spirals 13, 15 of opposite pitch so that the lateral components of successive traversals are reversed i.e. from left to right and vice versa. Fig. 2 shows a modification in which one set of holes aranged along a spiral 22 effects an exploration having its lateral component from right to left simultaneously with an exploration having its lateral component from left to right effected by another set of holes arranged along a spiral 24. The strips in each such exploration may together constitute a complete image, or the strips of one exploration may alternate with those of the other. In a further modification simultaneous explorations with oppositely-directed lateral components as in Fig. 2 are effected by two sets of holes, each set being arranged along two spirals of opposite pitch as in Fig. 1. Fig. 4 shows an arrangement in which the directions of the strips in successive traversals are at right angles. Two discs 33, 38 rotating at equal speeds about parallel axes are employed, having holes arranged along spirals 35, 39 for exploring the image in vertical and horizontal strips respectively. These explorations are effected alternately, one half of each disc being slotted at 43, 44 to expose the image to the other disc. In another arrangement, employing two overlapping slotted discs rotating at different speeds about parallel axes, the slots in the faster disc are radial, and alternate slots in the slower disc are inclined to the radius in opposite directions. In the arrangement of Fig. 6 an image 55 is explored by holes in overlapping discs 49, 50 rotated in the same direction and at the same speed about parallel axes, slots being provided in each disc to exposethe holes in the other disc. The holes in each disc are arranged along a pair of spirals 51, 52 and 53, 54 and the holes of each spiral explore alternate strips of one half of the image. In the arrangement of Fig. 7 holes arranged along a spiral in one disc explore the image along strips at right angles to the strips similarly traced by holes arranged along a spiral in the other disc. Alternatively two separate images of the scene may be employed each with its own light-sensitive cell, and transmission channel, the strips of exploration of one image being at right angles to the strips of exploration of the other. In all cases requiring the rotation of two discs at equal speeds the discs may be driven through a triangular connecting member or through two coupling- rods each connecting a pair of cranks arranged at an angle to the cranks of the other pair. In a further modified exploring arrangement the direction of exploration is varied by causing theimage to rotate in relation to the exploring devices, e.g. by the use of mirrors 67, 68, 69, Fig. 12, or of a total reflection prism 70, Fig. 13, rotating about the axis 71, a similar arrangement being used for reconstituting the image at the receiving station.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB21492/27A GB288882A (en) | 1926-10-15 | 1926-10-15 | An improved method of and means for effecting remote control |
Publications (1)
Publication Number | Publication Date |
---|---|
GB289307A true GB289307A (en) | 1928-04-16 |
Family
ID=10163849
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25773/26A Expired GB289104A (en) | 1926-10-15 | 1926-10-15 | Improvements in or relating to the recording of views of objects or scenes, or optical images or the like |
GB20968/27A Expired GB289307A (en) | 1926-10-15 | 1926-10-15 | Improvements in or relating to television and like systems |
GB21492/27A Expired GB288882A (en) | 1926-10-15 | 1926-10-15 | An improved method of and means for effecting remote control |
GB11019/28A Expired GB295210A (en) | 1926-10-15 | 1927-08-09 | Improvements in or relating to television and like systems |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25773/26A Expired GB289104A (en) | 1926-10-15 | 1926-10-15 | Improvements in or relating to the recording of views of objects or scenes, or optical images or the like |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21492/27A Expired GB288882A (en) | 1926-10-15 | 1926-10-15 | An improved method of and means for effecting remote control |
GB11019/28A Expired GB295210A (en) | 1926-10-15 | 1927-08-09 | Improvements in or relating to television and like systems |
Country Status (5)
Country | Link |
---|---|
US (1) | US1776097A (en) |
BE (2) | BE345816A (en) |
DE (2) | DE571954C (en) |
FR (3) | FR642861A (en) |
GB (4) | GB289104A (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2451734A (en) * | 1922-01-26 | 1948-10-19 | Hopkins Edwin | Method of and means for the transmission and reproduction of optical and acoustical effects |
NL75996C (en) * | 1945-07-31 | |||
US2517440A (en) * | 1947-04-02 | 1950-08-01 | Jaekson O Kleber | Double-track recording system |
US2575714A (en) * | 1947-09-19 | 1951-11-20 | Westinghouse Electric Corp | Facsimile system |
US2709716A (en) * | 1948-10-19 | 1955-05-31 | George L Haller | Contrast enhancing aerial photography |
US2666651A (en) * | 1949-01-12 | 1954-01-19 | Earle W Jones | Master sound record |
US3260529A (en) * | 1949-06-13 | 1966-07-12 | Brown Owen | Multi-functional phonograph |
US2790645A (en) * | 1951-04-18 | 1957-04-30 | Bell Telephone Labor Inc | Magnetic recording system |
DE1250647B (en) * | 1960-08-17 | 1967-09-21 | Aerojeti General Corp | Device for making an invisible radiation source visible |
NL164688C (en) * | 1973-10-15 | 1981-01-15 | Mca Disco Vision | METHOD FOR MANUFACTURING A VIDEO DISC IN WHICH A FORM IS FIRST MANUFACTURED |
-
0
- BE BE345814D patent/BE345814A/xx unknown
- BE BE345816D patent/BE345816A/xx unknown
-
1926
- 1926-10-15 GB GB25773/26A patent/GB289104A/en not_active Expired
- 1926-10-15 GB GB20968/27A patent/GB289307A/en not_active Expired
- 1926-10-15 GB GB21492/27A patent/GB288882A/en not_active Expired
-
1927
- 1927-08-09 GB GB11019/28A patent/GB295210A/en not_active Expired
- 1927-10-07 US US224709A patent/US1776097A/en not_active Expired - Lifetime
- 1927-10-13 FR FR642861D patent/FR642861A/en not_active Expired
- 1927-10-13 FR FR644795D patent/FR644795A/en not_active Expired
- 1927-10-13 FR FR642862D patent/FR642862A/en not_active Expired
- 1927-10-15 DE DEB133868D patent/DE571954C/en not_active Expired
- 1927-10-15 DE DEB133870D patent/DE662009C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB289104A (en) | 1928-04-16 |
GB288882A (en) | 1928-04-16 |
GB295210A (en) | 1928-08-09 |
DE571954C (en) | 1933-03-09 |
FR644795A (en) | 1928-10-13 |
BE345816A (en) | |
FR642862A (en) | 1928-09-06 |
BE345814A (en) | |
DE662009C (en) | 1938-07-04 |
US1776097A (en) | 1930-09-16 |
FR642861A (en) | 1928-09-06 |
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