GB736557A - Improvements in display-controlling means for cathode ray tubes - Google Patents

Improvements in display-controlling means for cathode ray tubes

Info

Publication number
GB736557A
GB736557A GB13954/53A GB1395453A GB736557A GB 736557 A GB736557 A GB 736557A GB 13954/53 A GB13954/53 A GB 13954/53A GB 1395453 A GB1395453 A GB 1395453A GB 736557 A GB736557 A GB 736557A
Authority
GB
United Kingdom
Prior art keywords
photo
disc
display
track
plates
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
GB13954/53A
Inventor
Cecil Alfred Laws
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.)
Allard Way Holdings Ltd
Original Assignee
Elliott Brothers London Ltd
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 Elliott Brothers London Ltd filed Critical Elliott Brothers London Ltd
Priority to GB13954/53A priority Critical patent/GB736557A/en
Priority to US430297A priority patent/US2718608A/en
Publication of GB736557A publication Critical patent/GB736557A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K11/00—Methods or arrangements for graph-reading or for converting the pattern of mechanical parameters, e.g. force or presence, into electrical signal
    • G06K11/02—Automatic curve followers, i.e. arrangements in which an exploring member or beam is forced to follow the curve
    • 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
    • G09G1/06—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 single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows
    • G09G1/08—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 single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam directly tracing characters, the information to be displayed controlling the deflection and the intensity as a function of time in two spatial co-ordinates, e.g. according to a cartesian co-ordinate system
    • G09G1/12—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 single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam directly tracing characters, the information to be displayed controlling the deflection and the intensity as a function of time in two spatial co-ordinates, e.g. according to a cartesian co-ordinate system the deflection signals being produced by essentially analogue means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Artificial Intelligence (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Stereoscopic And Panoramic Photography (AREA)

Abstract

736,557. Photo-electric waveform generators. ELLIOTT BROS. (LONDON), Ltd. May 14, 1954 [May 18, 1953], No. 13954/53. Class 40 (3). [Also in Group XL (c)] In an arrangement for displaying predetermined patterns or symbols on the screen of a display cathode-ray tube by simultaneously varying the displacement voltages applied simultaneously to the X and Y plates of the tube, the X displacement voltage is generated by rotating a transparent disc 1 between an auxiliary C.R.T. 12 and a photo-cell 13, the disc having an opaque annular track 2 whose outer contour corresponds to the required variation of the displacement voltage and the output from the photo-cell 13 being applied through an amplifier 14 to control the deflection of the beam of C.R.T. 12 so that the luminous spot on the screen of C.R.T. 12 is maintained at the outer edge of the track 2 ; the output from amplifier 14 thus constitutes the required displacement voltage and is also applied to the X plates of the display C.R.T. (not shown). The Y displacement voltage is generated by a similar arrangement comprising a disc 1a, discs 1 and 1a being driven by a single motor 11. When a plurality of different patterns are to be displayed sequentially in displaced positions, the pattern contours 3 ... 8 are arranged end-toend along the track and disc 1a includes an additional track 15 comprising alternate opaque and transparent areas which in conjunction with lamp 16 and photo-cell 17 produces a control voltage which operates switches for applying the shift voltages to the plates of the display C.R.T. ; alternatively the switches may be controlled by a further contour-following C.R.T. Brightening pulses may be generated in a similar manner.
GB13954/53A 1953-05-18 1953-05-18 Improvements in display-controlling means for cathode ray tubes Expired GB736557A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB13954/53A GB736557A (en) 1953-05-18 1953-05-18 Improvements in display-controlling means for cathode ray tubes
US430297A US2718608A (en) 1953-05-18 1954-05-17 Display-controlling means for cathode ray tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13954/53A GB736557A (en) 1953-05-18 1953-05-18 Improvements in display-controlling means for cathode ray tubes

Publications (1)

Publication Number Publication Date
GB736557A true GB736557A (en) 1955-09-07

Family

ID=10032374

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13954/53A Expired GB736557A (en) 1953-05-18 1953-05-18 Improvements in display-controlling means for cathode ray tubes

Country Status (2)

Country Link
US (1) US2718608A (en)
GB (1) GB736557A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2085296A2 (en) * 1968-05-17 1971-12-24 Thomson Csf

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2820173A (en) * 1955-08-03 1958-01-14 Raabe Herbert Paul Spectrum analyzer
US2977480A (en) * 1959-12-15 1961-03-28 Carl E Keene Shaft rotation to time interval transducer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2398552A (en) * 1942-12-31 1946-04-16 Rca Corp Direction finder
US2462263A (en) * 1945-02-02 1949-02-22 Rca Corp Reproduction of sound
US2528020A (en) * 1945-07-24 1950-10-31 Philco Corp Mask controlled feedback system for cathode-ray tubes
US2681424A (en) * 1948-12-15 1954-06-15 Raytheon Mfg Co Electronic storage tube control system
US2540943A (en) * 1950-01-10 1951-02-06 Gen Precision Lab Inc Visual signal translator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2085296A2 (en) * 1968-05-17 1971-12-24 Thomson Csf

Also Published As

Publication number Publication date
US2718608A (en) 1955-09-20

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