GB673502A - Improvements relating to cathode-ray storage tube systems - Google Patents

Improvements relating to cathode-ray storage tube systems

Info

Publication number
GB673502A
GB673502A GB12579/50A GB1257950A GB673502A GB 673502 A GB673502 A GB 673502A GB 12579/50 A GB12579/50 A GB 12579/50A GB 1257950 A GB1257950 A GB 1257950A GB 673502 A GB673502 A GB 673502A
Authority
GB
United Kingdom
Prior art keywords
mosaic
storage
cathode
gun
charge
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
Application number
GB12579/50A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB673502A publication Critical patent/GB673502A/en
Expired legal-status Critical Current

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
    • H01J31/122—Direct viewing storage tubes without storage grid

Landscapes

  • Transforming Electric Information Into Light Information (AREA)

Abstract

673,502. Pulse storage circuits. STANDARD TELEPHONES & CABLES, Ltd. May 19, 1950 [May 26, 1949], No. 12579/50. Class 40 (vi). In a cathode-ray tube device for storing variable electrical information by scanning a storage mosaic, the stored information may be taken off by a further scanning process and the charge restored to its original stored condition by scanning the mosaic under the control of a portion of the derived information. The Figure shows a cathode-ray tube store in which signals to be stored are applied via switch 20 to the control electrode of a gun assembly 2 in a storage tube to amplitude modulate the electron beam and set up a storage pattern on mosaic 1. The beam is scanned by deflecting plates as shown at 16. The input signals are disconnected when the charge pattern on mosaic 1 is completed and the electron beam from gun 2 may be used as a " sampling " beam, the signal produced across load resistor 10 at any instant of the scan being proportional to the charge on the elemental area of mosaic 1 which is being scanned. A portion of this signal is used to modulate the beam current in a display cathode-ray tube 11 which is scanned in synchronism with the beam of gun 2 so that a pattern indicative of the charge pattern on mosaic 1 of the storage tube and thus of the stored information is produced on the fluorescent screen 13. A further portion of the signal across load resistor 10 is applied via an amplifier 14 and delay network 15 to modulate the electron beam of a second gun 3 in the storage tube. The delay of network 15 is adjusted so that the " sampling " and " restoring " action of the two beams are effectively in synchronism and the charge pattern on mosaic 1 is restored to its stored condition.
GB12579/50A 1949-05-26 1950-05-19 Improvements relating to cathode-ray storage tube systems Expired GB673502A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US673502XA 1949-05-26 1949-05-26

Publications (1)

Publication Number Publication Date
GB673502A true GB673502A (en) 1952-06-04

Family

ID=22075421

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12579/50A Expired GB673502A (en) 1949-05-26 1950-05-19 Improvements relating to cathode-ray storage tube systems

Country Status (1)

Country Link
GB (1) GB673502A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1076829B (en) * 1956-05-02 1960-03-03 Marconi Wireless Telegraph Co Ribbon storage screen for cathode ray tubes
DE1139212B (en) * 1958-01-02 1962-11-08 Hughes Aircraft Co Direct view storage tubes for generating an image that also contains intermediate zones

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1076829B (en) * 1956-05-02 1960-03-03 Marconi Wireless Telegraph Co Ribbon storage screen for cathode ray tubes
DE1139212B (en) * 1958-01-02 1962-11-08 Hughes Aircraft Co Direct view storage tubes for generating an image that also contains intermediate zones

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