SE9604241L - Protection for subliminal messages - Google Patents

Protection for subliminal messages

Info

Publication number
SE9604241L
SE9604241L SE9604241A SE9604241A SE9604241L SE 9604241 L SE9604241 L SE 9604241L SE 9604241 A SE9604241 A SE 9604241A SE 9604241 A SE9604241 A SE 9604241A SE 9604241 L SE9604241 L SE 9604241L
Authority
SE
Sweden
Prior art keywords
protection
frames
subliminal messages
subliminal
context
Prior art date
Application number
SE9604241A
Other languages
Swedish (sv)
Other versions
SE510444C2 (en
SE9604241D0 (en
Inventor
Magnus Jaendel
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE9604241A priority Critical patent/SE510444C2/en
Publication of SE9604241D0 publication Critical patent/SE9604241D0/en
Priority to PCT/SE1997/001909 priority patent/WO1998023087A1/en
Priority to AU50763/98A priority patent/AU5076398A/en
Priority to KR1019997004424A priority patent/KR100349190B1/en
Priority to JP52356098A priority patent/JP2001504656A/en
Publication of SE9604241L publication Critical patent/SE9604241L/en
Priority to US09/310,739 priority patent/US6122322A/en
Publication of SE510444C2 publication Critical patent/SE510444C2/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/24—Systems for the transmission of television signals using pulse code modulation
    • H04N7/52—Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/20—Analysis of motion
    • 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
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4318—Generation of visual interfaces for content selection or interaction; Content or additional data rendering by altering the content in the rendering process, e.g. blanking, blurring or masking an image region
    • 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
    • H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4334—Recording operations
    • 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
    • H04N21/44008—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 operations for analysing video streams, e.g. detecting features or characteristics in the video stream
    • 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
    • H04N21/47—End-user applications
    • 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
    • H04N21/47—End-user applications
    • H04N21/488—Data services, e.g. news ticker
    • H04N21/4882—Data services, e.g. news ticker for displaying messages, e.g. warnings, reminders
    • 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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/81—Monomedia components thereof
    • H04N21/812—Monomedia components thereof involving advertisement data
    • 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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/835—Generation of protective data, e.g. certificates
    • H04N21/8358—Generation of protective data, e.g. certificates involving watermark
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/147—Scene change detection
    • 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
    • H04N21/47—End-user applications
    • H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application

Abstract

The present invention relates to a method and to a system for detecting a first context change between two frames. When a second context change between a further two frames occurs within a predetermined time interval, the frames accommodated within the two context changes are defined as a subliminal message. An alarm is sent to an observer upon detection of a subliminal message.
SE9604241A 1996-11-19 1996-11-19 Protection for subliminal messages SE510444C2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE9604241A SE510444C2 (en) 1996-11-19 1996-11-19 Protection for subliminal messages
PCT/SE1997/001909 WO1998023087A1 (en) 1996-11-19 1997-11-13 Subliminal message protection
AU50763/98A AU5076398A (en) 1996-11-19 1997-11-13 Subliminal message protection
KR1019997004424A KR100349190B1 (en) 1996-11-19 1997-11-13 Subliminal message protection
JP52356098A JP2001504656A (en) 1996-11-19 1997-11-13 Sub-threshold message protection
US09/310,739 US6122322A (en) 1996-11-19 1999-05-13 Subliminal message protection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9604241A SE510444C2 (en) 1996-11-19 1996-11-19 Protection for subliminal messages

Publications (3)

Publication Number Publication Date
SE9604241D0 SE9604241D0 (en) 1996-11-19
SE9604241L true SE9604241L (en) 1998-05-20
SE510444C2 SE510444C2 (en) 1999-05-25

Family

ID=20404671

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9604241A SE510444C2 (en) 1996-11-19 1996-11-19 Protection for subliminal messages

Country Status (5)

Country Link
JP (1) JP2001504656A (en)
KR (1) KR100349190B1 (en)
AU (1) AU5076398A (en)
SE (1) SE510444C2 (en)
WO (1) WO1998023087A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3622527B2 (en) 1998-08-24 2005-02-23 株式会社日立製作所 Video feature scene detection method and apparatus
US6654067B1 (en) 1999-12-30 2003-11-25 Koninklijke Philips Electronics N.V. Finding hidden images in video based on detected proximity of cuts
JP4082664B2 (en) 2002-09-20 2008-04-30 Ｋｄｄｉ株式会社 Video search device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5099322A (en) * 1990-02-27 1992-03-24 Texas Instruments Incorporated Scene change detection system and method
DE4106246C1 (en) * 1991-02-28 1992-03-26 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig Hollaend. Stiftung & Co Kg, 8510 Fuerth, De TV broadcast suppression appts. esp. for avoiding advertisements - stores images which start and end of broadcast and compares current image with memory to control suppression or channel change
DE59402618D1 (en) * 1993-08-31 1997-06-05 Rundfunkschutzrechte Ev METHOD AND DEVICE FOR DETECTING UNWANTED VIDEO SCENES

Also Published As

Publication number Publication date
KR100349190B1 (en) 2002-08-21
WO1998023087A1 (en) 1998-05-28
SE510444C2 (en) 1999-05-25
JP2001504656A (en) 2001-04-03
SE9604241D0 (en) 1996-11-19
KR20000057150A (en) 2000-09-15
AU5076398A (en) 1998-06-10

Similar Documents

Publication Publication Date Title
MY140274A (en) A security system and a method of operating same
AR001261A1 (en) A selective call receiver to receive a radio signal
NO883912L (en) MONITORING AND MESSAGE SYSTEM FOR DATA TRANSMISSION BY PHONE LINE.
BR9610459A (en) Telecommunications control system
AU2001247351A1 (en) Method and system for dynamic network intrusion monitoring, detection and response
ES2192416T3 (en) DEVICE FOR REMOVAL OR SPACING APPROACHES OUTSIDE OR WITHIN A DEFAULT LIMIT.
EP0404707A3 (en) Frame stripping method for removing corrupted messages in a ring communication network
BR9609734A (en) Power line telephone communications system that has digital voice band message on the hook
FI990102A (en) Data recovery wizard
KR870010703A (en) Paging receiver capable of receiving message data
EP1132880A4 (en) Informing system
DE69416652T2 (en) DIGITAL MESSAGE SYSTEM, AND SUITABLE TRANSMITTER AND RECEIVER
KR840002181A (en) Decoder for sent message deactivation code
SE9604241D0 (en) Protection for subliminal messages
AU7325496A (en) Method and apparatus for power control in a telephone system
DE69412046D1 (en) Alarm system for broken glass detection
DE59600509D1 (en) METHOD FOR MONITORING AN OBJECT OVER A DIGITAL DATA NETWORK
DK0489034T3 (en) Selective call signaling system
KR840001976A (en) Method and apparatus for signaling transmission mode of communication system
DE69511151D1 (en) Fire alarm system and transmitter therefor
WO1998030011A3 (en) Method for monitoring an object by means of a digital data network
DE69424484T2 (en) FIRE ALARM RECEIVER AND FIRE ALARM SYSTEM.
KR970072814A (en) Ring alarm method in a branching (ADM) network of a synchronous optical transmission apparatus
JPS5376794A (en) Receiver of firm alarm system
JPS5434699A (en) Urgento display system

Legal Events

Date Code Title Description
NUG Patent has lapsed