GB1372126A - Amplitude-space converter more particularly for dynamic display systems on matrices - Google Patents

Amplitude-space converter more particularly for dynamic display systems on matrices

Info

Publication number
GB1372126A
GB1372126A GB4072772A GB4072772A GB1372126A GB 1372126 A GB1372126 A GB 1372126A GB 4072772 A GB4072772 A GB 4072772A GB 4072772 A GB4072772 A GB 4072772A GB 1372126 A GB1372126 A GB 1372126A
Authority
GB
United Kingdom
Prior art keywords
voltage
input
line
latch
matrix
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
GB4072772A
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.)
LEQUIPEMENT ET LA CONSTRUCTION
Original Assignee
LEQUIPEMENT ET LA CONSTRUCTION
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 LEQUIPEMENT ET LA CONSTRUCTION filed Critical LEQUIPEMENT ET LA CONSTRUCTION
Publication of GB1372126A publication Critical patent/GB1372126A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/04—Arrangements for displaying electric variables or waveforms for producing permanent records
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/04—Input or output devices

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

1372126 Analogue to digital conversion L'EQUIPEMENT ET LA CONSTRUCTION ELECTRIQUE 1 Sept 1972 [28 Sept 1971] 40727/72 Heading G4H In a voltage-to-space converter, a line in a matrix of electroluminescent diodes is energized when the input voltage is exceeded by a step value of a staircase voltage associated with the line. In Fig. 1, the voltage input is compared at K 1 with a staircase wave generated by counting at C 1 clock pulses from H and decoding the count at D 1 and the count at which the input is reached is triggered into latch L 11 and into latch L 12 at the end of the counting cycle when C 1 fills. The contents of latch L 12 are decoded at D 11 and a corresponding row 2 of the matrix is energized for a time independent of the value of the input voltage. A similar arrangement for a second input voltage energizes the column line 3. If the second variable is time, the triggering input to L 12 may also be used to stop energization of the column conductors. In a modification, Fig. 2 (not shown), a respective comparator is provided for each line of the matrix, and two voltage dividers consisting of equal resistors. The nth comparator having an inputs for the input voltage, the nth tapping point of one divider and the (n+1)th tapping point of the other divider.
GB4072772A 1971-09-28 1972-09-01 Amplitude-space converter more particularly for dynamic display systems on matrices Expired GB1372126A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7134781A FR2154849A5 (en) 1971-09-28 1971-09-28

Publications (1)

Publication Number Publication Date
GB1372126A true GB1372126A (en) 1974-10-30

Family

ID=9083557

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4072772A Expired GB1372126A (en) 1971-09-28 1972-09-01 Amplitude-space converter more particularly for dynamic display systems on matrices

Country Status (8)

Country Link
US (1) US3816822A (en)
BE (1) BE787971A (en)
DE (1) DE2242000C3 (en)
FR (1) FR2154849A5 (en)
GB (1) GB1372126A (en)
IL (1) IL40208A (en)
IT (1) IT966745B (en)
LU (1) LU66163A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2355994B2 (en) * 1973-11-09 1976-11-11 Ibm Deutschland Gmbh, 7000 Stuttgart ARRANGEMENT FOR DYNAMIC DIRECT DIGITAL DISPLAY OF PULSE RELATIONS
US4006412A (en) * 1974-10-29 1977-02-01 The United States Of America As Represented By The Secretary Of The Navy Digital display system circuit
US4163971A (en) * 1975-05-05 1979-08-07 Sigma Instruments Inc. Systems for displaying analog values
US4210904A (en) * 1978-09-12 1980-07-01 Krautkramer-Branson, Incorporated Method and apparatus for converting analog ultrasonic echo signals into digital form

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2064630A (en) * 1935-08-07 1936-12-15 Ohio Brass Co Impulse generator
US2817815A (en) * 1948-02-02 1957-12-24 Thomas P Evans Transient signal recorder
US2612550A (en) * 1950-09-27 1952-09-30 Gen Electric Voltage level selector circuit
US2688441A (en) * 1951-02-02 1954-09-07 Exact Weight Scale Co Distribution classifier
US3671938A (en) * 1969-05-02 1972-06-20 Bell Telephone Labor Inc Gaseous display device

Also Published As

Publication number Publication date
IL40208A0 (en) 1972-11-28
IT966745B (en) 1974-02-20
IL40208A (en) 1975-04-25
BE787971A (en) 1972-12-18
DE2242000A1 (en) 1973-04-05
LU66163A1 (en) 1973-01-17
DE2242000C3 (en) 1979-03-01
US3816822A (en) 1974-06-11
DE2242000B2 (en) 1978-07-06
FR2154849A5 (en) 1973-05-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years