GB1105296A - Improvements in or relating to electric discharge tubes - Google Patents
Improvements in or relating to electric discharge tubesInfo
- Publication number
- GB1105296A GB1105296A GB2094164A GB2094164A GB1105296A GB 1105296 A GB1105296 A GB 1105296A GB 2094164 A GB2094164 A GB 2094164A GB 2094164 A GB2094164 A GB 2094164A GB 1105296 A GB1105296 A GB 1105296A
- Authority
- GB
- United Kingdom
- Prior art keywords
- deflection
- pulses
- produced
- symbol
- subsidiary
- 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
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
- H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
- H01J31/128—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digitally controlled display tubes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G1/00—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
- G09G1/20—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using multi-beam tubes
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
1,105,296. Cathode-ray tube circuits. RANK ORGANISATION Ltd. 20 Aug., 1965 [21 May, 1964], No. 20941/64. Heading H4T. In a symbol display arrangement of the kind utilizing selective control (i.e. ON-OFF) of a plurality of electron beams produced by an e.g. 7 x 5 matrix in a cathode-ray tube together with deflection control means for positioning each symbol in a desired location on the tube screen an increase in the definition equivalent to that which a 14 x 10 matrix would produce is realized by subjecting the beams to a subsidiary deflection during each symbol display period such that each beam follows the path A-B-C D (Fig. 1). The subsidiary deflection is produced by supplying the normal X and Y deflection means with the output of a pulse generator 170 (Fig. 4, not shown) comprising a repeating sequence of pulses 1 to 4 (Fig. 2, not shown), these pulses, additionally, being combined in 180 (Fig. 4) to derive a further sequence 5 to 9 (Fig. 2) which together with the four subsidiary deflection pulses are utilized for ON-OFF control of the tube beams (Fig. 3, not shown), selectively in accordance with the symbol produced (Figs. 4 and 5a, 5b, not shown).
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2094164A GB1105296A (en) | 1964-05-21 | 1964-05-21 | Improvements in or relating to electric discharge tubes |
| NL6502534A NL6502534A (en) | 1964-05-21 | 1965-03-01 | |
| FR7399A FR1434414A (en) | 1964-05-21 | 1965-03-01 | Electric discharge tubes |
| SE338265A SE335181B (en) | 1964-05-21 | 1965-03-16 | |
| DE1965R0040534 DE1514348B1 (en) | 1964-05-21 | 1965-05-04 | Electric discharge tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2094164A GB1105296A (en) | 1964-05-21 | 1964-05-21 | Improvements in or relating to electric discharge tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1105296A true GB1105296A (en) | 1968-03-06 |
Family
ID=10154421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2094164A Expired GB1105296A (en) | 1964-05-21 | 1964-05-21 | Improvements in or relating to electric discharge tubes |
Country Status (5)
| Country | Link |
|---|---|
| DE (1) | DE1514348B1 (en) |
| FR (1) | FR1434414A (en) |
| GB (1) | GB1105296A (en) |
| NL (1) | NL6502534A (en) |
| SE (1) | SE335181B (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1297765A (en) * | 1960-04-28 | 1962-07-06 | Rank Precision Ind Ltd | Electric discharge tubes and their applications |
-
1964
- 1964-05-21 GB GB2094164A patent/GB1105296A/en not_active Expired
-
1965
- 1965-03-01 FR FR7399A patent/FR1434414A/en not_active Expired
- 1965-03-01 NL NL6502534A patent/NL6502534A/xx unknown
- 1965-03-16 SE SE338265A patent/SE335181B/xx unknown
- 1965-05-04 DE DE1965R0040534 patent/DE1514348B1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| NL6502534A (en) | 1965-11-22 |
| SE335181B (en) | 1971-05-17 |
| DE1514348B1 (en) | 1970-11-12 |
| FR1434414A (en) | 1966-04-08 |
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