WO2003012772A8 - Sequential inverse encoding apparatus and method for providing confidential viewing of a fundamental display image - Google Patents

Sequential inverse encoding apparatus and method for providing confidential viewing of a fundamental display image

Info

Publication number
WO2003012772A8
WO2003012772A8 PCT/US2002/024821 US0224821W WO03012772A8 WO 2003012772 A8 WO2003012772 A8 WO 2003012772A8 US 0224821 W US0224821 W US 0224821W WO 03012772 A8 WO03012772 A8 WO 03012772A8
Authority
WO
WIPO (PCT)
Prior art keywords
image
fundamental
viewing
color
color data
Prior art date
Application number
PCT/US2002/024821
Other languages
French (fr)
Other versions
WO2003012772A1 (en
Inventor
David A Struyk
Original Assignee
Waterstrike Inc
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 Waterstrike Inc filed Critical Waterstrike Inc
Priority to EP02756973A priority Critical patent/EP1449196A4/en
Priority to CA002456122A priority patent/CA2456122C/en
Priority to AU2002323018A priority patent/AU2002323018A1/en
Priority to JP2003517868A priority patent/JP4038687B2/en
Publication of WO2003012772A1 publication Critical patent/WO2003012772A1/en
Publication of WO2003012772A8 publication Critical patent/WO2003012772A8/en

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
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video stream decryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/4408—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video stream encryption, e.g. re-encrypting a decrypted video stream for redistribution in a home network
    • 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
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • G09G5/006—Details of the interface to the display terminal
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • G09G5/06—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed using colour palettes, e.g. look-up tables
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/14—Display of multiple viewports

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

An image altering apparatus which provides confidential viewing of a video display by means of time multiplexing the fundamental display image with a color-inverted image thereof on a pixel-by-pixel basis. Electronic circuitry and/or software are utilized to modify the fundamental image signal by time multiplexing its color data components with corresponding inverse color data components to generate a compound image signal which is representative of a substantially featureless image. Different multiplexing sequences of color data components and inverse color data components may be utilized at varying duty cycles to generate a compound image which is highly confidential and secure from unauthorized viewing. The fundamental image may be decoded and viewed only by those viewing the encoded image through specially designed eyeglasses incorporating time synchronized LCD shutters, variable polarizers, or color filters, which can selectively block inverted color components and/or demodulate the fundamental image to allow only the true fundamental color components to pass, thereby providing confidential and highly secure viewing of the fundamental image by the viewer.
PCT/US2002/024821 2001-08-03 2002-07-30 Sequential inverse encoding apparatus and method for providing confidential viewing of a fundamental display image WO2003012772A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP02756973A EP1449196A4 (en) 2001-08-03 2002-07-30 Sequential inverse encoding apparatus and method for providing confidential viewing of a fundamental display image
CA002456122A CA2456122C (en) 2001-08-03 2002-07-30 Sequential inverse encoding apparatus and method for providing confidential viewing of a fundamental display image
AU2002323018A AU2002323018A1 (en) 2001-08-03 2002-07-30 Sequential inverse encoding apparatus and method for providing confidential viewing of a fundamental display image
JP2003517868A JP4038687B2 (en) 2001-08-03 2002-07-30 An image changing device using a sequential reverse encryption method for providing visibility of a basic display image under security protection

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US30985601P 2001-08-03 2001-08-03
US60/309,856 2001-08-03
US10/205,864 US6980177B2 (en) 2001-08-03 2002-07-24 Sequential inverse encoding apparatus and method for providing confidential viewing of a fundamental display image
US10/205,864 2002-07-24

Publications (2)

Publication Number Publication Date
WO2003012772A1 WO2003012772A1 (en) 2003-02-13
WO2003012772A8 true WO2003012772A8 (en) 2003-08-14

Family

ID=26900835

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/024821 WO2003012772A1 (en) 2001-08-03 2002-07-30 Sequential inverse encoding apparatus and method for providing confidential viewing of a fundamental display image

Country Status (6)

Country Link
US (1) US6980177B2 (en)
EP (1) EP1449196A4 (en)
JP (1) JP4038687B2 (en)
AU (1) AU2002323018A1 (en)
CA (1) CA2456122C (en)
WO (1) WO2003012772A1 (en)

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Also Published As

Publication number Publication date
JP2004537763A (en) 2004-12-16
JP4038687B2 (en) 2008-01-30
AU2002323018A1 (en) 2003-02-17
CA2456122C (en) 2008-04-01
EP1449196A4 (en) 2009-07-15
WO2003012772A1 (en) 2003-02-13
US20030128218A1 (en) 2003-07-10
US6980177B2 (en) 2005-12-27
CA2456122A1 (en) 2003-02-13
EP1449196A1 (en) 2004-08-25

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