GB2001794A - Waveform display - Google Patents

Waveform display

Info

Publication number
GB2001794A
GB2001794A GB7830898A GB7830898A GB2001794A GB 2001794 A GB2001794 A GB 2001794A GB 7830898 A GB7830898 A GB 7830898A GB 7830898 A GB7830898 A GB 7830898A GB 2001794 A GB2001794 A GB 2001794A
Authority
GB
United Kingdom
Prior art keywords
binary
codes
display
electrodes
waveform
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.)
Granted
Application number
GB7830898A
Other versions
GB2001794B (en
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.)
Secretary of State for Defence Canada
UK Secretary of State for Defence
Original Assignee
Secretary of State for Defence Canada
UK Secretary of State for Defence
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 Secretary of State for Defence Canada, UK Secretary of State for Defence filed Critical Secretary of State for Defence Canada
Priority to GB7830898A priority Critical patent/GB2001794B/en
Publication of GB2001794A publication Critical patent/GB2001794A/en
Application granted granted Critical
Publication of GB2001794B publication Critical patent/GB2001794B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/40—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect
    • G01R13/404—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect for discontinuous display, i.e. display of discrete values
    • G01R13/408—Two or three dimensional representation of measured values
    • 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
    • G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
    • 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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/36—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 by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3622—Control of matrices with row and column drivers using a passive matrix
    • G09G3/3625—Control of matrices with row and column drivers using a passive matrix using active addressing

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

A waveform display comprises an opto electric display having m vertically electrodes and n horizontal electrodes arranged in an mxn element matrix. A series of n different reference binary code voltages V1-n are applied simultaneously, one to each x electrode. The waveform to be displayed is sampled and binary numbers representative of the amplitude of each sample are produced. These binary sample numbers are each converted into one of the reference binary codes and stored for application simultaneously to the Y electrodes, the code so produced being related to both the amplitude value and the order of reference codes on the x electrodes. As a result of the simultaneous application of appropriate binary codes to each X and Y electrode, unselected X Y intersections receive an rms voltage above a display threshold whilst selected X Y intersections making the waveform receive a zero voltage. The opto electric display may be a liquid crystal display or an electro luminescent display. The binary codes may be an ordered series of binary numbers represented by logic zeros and ones, having a period T divided into N bits where n = 2N, or period T divided into L bits and using 2N codes out of a possible 2L codes where L is greater than N and n = 2N. Alternatively the binary code may be a pseudo random series of zeros and ones. <IMAGE>
GB7830898A 1977-07-26 1978-07-24 Method of and apparatus for displaying waveforms Expired GB2001794B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7830898A GB2001794B (en) 1977-07-26 1978-07-24 Method of and apparatus for displaying waveforms

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3139777 1977-07-26
GB7830898A GB2001794B (en) 1977-07-26 1978-07-24 Method of and apparatus for displaying waveforms

Publications (2)

Publication Number Publication Date
GB2001794A true GB2001794A (en) 1979-02-07
GB2001794B GB2001794B (en) 1982-01-27

Family

ID=26260886

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7830898A Expired GB2001794B (en) 1977-07-26 1978-07-24 Method of and apparatus for displaying waveforms

Country Status (1)

Country Link
GB (1) GB2001794B (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0020027A1 (en) * 1979-05-03 1980-12-10 National Research Development Corporation Apparatus for displaying two waveforms
WO1981001068A1 (en) * 1979-10-09 1981-04-16 United Kingdom Method and apparatus for addressing an opto-electric matrix display
WO1982000206A1 (en) * 1980-06-27 1982-01-21 Shanks I Dual trace electro-optic display
EP0057805A2 (en) * 1981-02-09 1982-08-18 Asulab S.A. Opto-electronic display device using a point matrix
EP0109160A2 (en) * 1982-10-14 1984-05-23 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Electronic displays
EP0118991A1 (en) * 1983-02-09 1984-09-19 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Interactive display system
GB2142174A (en) * 1983-04-26 1985-01-09 Shin Kobe Electric Machinery An oscilliscope
GB2142727A (en) * 1983-06-21 1985-01-23 Anthony John Turner Ultra portable electrocardiograph
EP0157524A2 (en) * 1984-03-30 1985-10-09 National Research Development Corporation Flat panel display
EP0177331A2 (en) * 1984-10-02 1986-04-09 Control Interface Corporation Method and apparatus for presenting waveforms on a liquid crystal display
DE3511602A1 (en) * 1985-03-27 1986-10-02 CREATEC Gesellschaft für Elektrotechnik mbH, 1000 Berlin Signal-processing device
WO1995001628A1 (en) * 1993-06-30 1995-01-12 Motorola, Inc. Real time active addressing display device and method utilizing fast walsh transform circuit

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0020027A1 (en) * 1979-05-03 1980-12-10 National Research Development Corporation Apparatus for displaying two waveforms
WO1981001068A1 (en) * 1979-10-09 1981-04-16 United Kingdom Method and apparatus for addressing an opto-electric matrix display
WO1982000206A1 (en) * 1980-06-27 1982-01-21 Shanks I Dual trace electro-optic display
EP0057805A2 (en) * 1981-02-09 1982-08-18 Asulab S.A. Opto-electronic display device using a point matrix
JPS57139786A (en) * 1981-02-09 1982-08-28 Asulab Sa Photoelectrical indicator
EP0057805A3 (en) * 1981-02-09 1982-09-01 Asulab S.A. Opto-electronic display device using a point matrix
JPH0140998B2 (en) * 1981-02-09 1989-09-01 Asulab Sa
US4626840A (en) * 1982-10-14 1986-12-02 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Electronic display suitable for polar coordinate representations
EP0109160A3 (en) * 1982-10-14 1986-04-09 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Electronic displays
EP0109160A2 (en) * 1982-10-14 1984-05-23 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Electronic displays
EP0118991A1 (en) * 1983-02-09 1984-09-19 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Interactive display system
GB2142174A (en) * 1983-04-26 1985-01-09 Shin Kobe Electric Machinery An oscilliscope
GB2142727A (en) * 1983-06-21 1985-01-23 Anthony John Turner Ultra portable electrocardiograph
EP0157524A2 (en) * 1984-03-30 1985-10-09 National Research Development Corporation Flat panel display
EP0157524A3 (en) * 1984-03-30 1987-04-01 National Research Development Corporation Flat panel display
EP0177331A2 (en) * 1984-10-02 1986-04-09 Control Interface Corporation Method and apparatus for presenting waveforms on a liquid crystal display
EP0177331A3 (en) * 1984-10-02 1986-10-29 Control Interface Corporation Method and apparatus for presenting waveforms on a liquid crystal display
DE3511602A1 (en) * 1985-03-27 1986-10-02 CREATEC Gesellschaft für Elektrotechnik mbH, 1000 Berlin Signal-processing device
WO1995001628A1 (en) * 1993-06-30 1995-01-12 Motorola, Inc. Real time active addressing display device and method utilizing fast walsh transform circuit
AU676928B2 (en) * 1993-06-30 1997-03-27 In Focus Systems, Inc. Real time active addressing display device and method utilizing fast walsh transform circuit

Also Published As

Publication number Publication date
GB2001794B (en) 1982-01-27

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee