WO2005020560B1 - Method and system for enhanced modulation of video signals - Google Patents

Method and system for enhanced modulation of video signals

Info

Publication number
WO2005020560B1
WO2005020560B1 PCT/US2004/027752 US2004027752W WO2005020560B1 WO 2005020560 B1 WO2005020560 B1 WO 2005020560B1 US 2004027752 W US2004027752 W US 2004027752W WO 2005020560 B1 WO2005020560 B1 WO 2005020560B1
Authority
WO
WIPO (PCT)
Prior art keywords
signal
pixels
lines
matrix
hiding
Prior art date
Application number
PCT/US2004/027752
Other languages
French (fr)
Other versions
WO2005020560A2 (en
WO2005020560A3 (en
Inventor
Christopher E Chupp
Michael S Gramelspacher
Jesse J Ii Chounard
James G Withers
Yousri H Barsoum
Michael C Reynolds
Original Assignee
Christopher E Chupp
Michael S Gramelspacher
Jesse J Ii Chounard
James G Withers
Yousri H Barsoum
Michael C Reynolds
Koplar Interactive Systems Int
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 Christopher E Chupp, Michael S Gramelspacher, Jesse J Ii Chounard, James G Withers, Yousri H Barsoum, Michael C Reynolds, Koplar Interactive Systems Int filed Critical Christopher E Chupp
Priority to EP20040782267 priority Critical patent/EP1668901A2/en
Publication of WO2005020560A2 publication Critical patent/WO2005020560A2/en
Publication of WO2005020560A3 publication Critical patent/WO2005020560A3/en
Publication of WO2005020560B1 publication Critical patent/WO2005020560B1/en

Links

Classifications

    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • 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
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
    • 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
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/007—Systems with supplementary picture signal insertion during a portion of the active part of a television signal, e.g. during top and bottom lines in a HDTV letter-box system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/081—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division the additional information signals being transmitted by means of a subcarrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/025—Systems for the transmission of digital non-picture data, e.g. of text during the active part of a television frame

Abstract

Method for encoding carrier signal (20) in video signal (18), video signal having one or more frames, frames each having first field and second field, first field and second field of each frame having plurality of scan lines, each having plurality of pixels with intensity value indicating brightness, method characterized by selectively designating plurality of scan lines of first field of one or more frames as up lines or down lines (83), calculating optimum amount of adjustment to pixels of up lines and down lines (84), and selectively increasing intensity value of pixels of up lines and decreasing intensity value of pixels of down lines by optimum amount of adjustment (86) thereby modulating video signal with carrier signal and creating modulated video signal (22).

Claims

AMENDED CLAIMS [received by the International Bureau on 16 June 2005 (16.06.05); original claims 1-8 and 36-43 replaced by amended claims 1-8 and 36-42; claims 9-34 deleted; claims 43-48 new; remaining claims unchanged]
What is claimed is: 1. A method for modulating a video signal, the video signal having one or more frames, the frames each having a first field and a second field, the first field and the second field of each frame having a plurality of scan lines, each having a plurality of pixels with an intensity value indicating brightness, the method characterized by:
selectively designating the plurality of scan lines of the first field of the one or more frames as up lines or down lines;
calculating an optimum amount of adjustment to the pixels of the up lines and the down lines; and
selectively increasing the intensity value of the plurality of pixels of the up lines and decreasing the intensity value of the plurality of pixels of the down lines by the optimum amount of adjustment thereby creating a modulated video signal . 2. The method of claim 1 further characterized in that obtaining on an encoder the video signal from a signal source.
3. The method of claim 2 further characterized in that obtaining operator instructions on the encoder.
4. The method of claim 2 further characterized in that outputting the modulated video signal from the encoder to a broadcast source .
5. The method of claim 1 further characterized in that calculating an optimum amount of adjustment comprises using a plurality of signal hiding techniques.
6. The method of claim 1 further characterized in that calculating an optimum amount of adjustment comprises using one or more signal hiding techniques and one or more limiting techniques .
7. The method of claim 1 further characterized in that selectively designating the plurality of scan lines of the first field of the frames as up lines or down lines is carried out in an irregular configuration.
8. The method of claim 1 further characterized in that calculating an optimum amount of adjustment comprises:
generating a three dimensional signal hiding matrix;
transforming the three dimensional signal hiding matrix into a two dimensional signal hiding matrix, the two dimensional signal hiding matrix having a plurality of signal hiding positions that correspond to the plurality of pixels of the video signal, each signal hiding position having a signal hiding value indicating a maximum amount of intensity that may be added to or subtracted from the pixels of the first field corresponding to the signal hiding position;
generating a three dimensional signal limiting matrix;
transforming the three dimensional signal limiting matrix into a two dimensional signal limiting matrix, the two dimensional signal limiting matrix having a plurality of signal limiting positions that correspond to the plurality of pixels of the video signal, each signal limiting position having a signal limiting value indicating a ceiling on the amount of intensity that may be added to or subtracted from the pixels of the first field corresponding to the signal hiding position; and
generating a real encoding value matrix by selecting the signal hiding values of the signal hiding matrix subject to the ceiling of the signal limiting values of the signal limiting matrix.
35. A method for modulating a video signal with a carrier signal, the video signal having one or more frames, each frame having a plurality of scan lines, each having a plurality of pixels, the method characterized by:
selectively designating in an irregular configuration the plurality of scan lines of at least one field of the frames as up lines or down lines; and
selectively increasing the intensity of pixels of the up lines and decreasing the intensity of pixels of the down lines thereby creating a carrier signal within the video signal.
36. The method of claim 35 further characterized by obtaining on an encoder the video signal from a signal source.
37. The method of claim 35 further characterized by obtaining instructions on modulating the video signal from an operator of the encoder.
38. The method of claim 35 further characterized by outputting the modulated video signal from the encoder to a broadcast source . 39. The method of claim 35 further characterized by calculating an optimum amount of adjustment to the pixels of the up lines and the down lines.
40. The method of claim 39 further characterized in that calculating an optimum amount of adjustment to the pixels of the up lines and the down lines is carried on by use of a plurality of signal hiding techniques.
41. The method of claim 39 further characterized in that calculating an optimum amount of adjustment to the pixels of the up lines and the down lines is carried on by use of one or more signal hiding techniques and one or more limiting techniques . 42. The method of claim 39 further characterized in that calculating an optimum amount of adjustment to the pixels of the up lines and the down lines comprises:
generating a three dimensional signal hiding matrix;
transforming the three dimensional signal hiding matrix into a two dimensional signal hiding matrix, the two dimensional signal hiding matrix having a plurality of signal hiding positions that correspond to the plurality of pixels of the video signal, each signal hiding position having a signal hiding value indicating a maximum amount of intensity that may be added to or subtracted from the pixels of the first field corresponding to the signal hiding position; generating a three dimensional signal limiting matrix;
transforming the three dimensional signal limiting matrix into a two dimensional signal limiting matrix, the two dimensional signal limiting matrix having a plurality of signal limiting positions that correspond to the plurality of pixels of the video signal, each signal limiting position having a signal limiting value indicating a ceiling on the amount of intensity that may be added to or subtracted from the pixels of the first field corresponding to the signal hiding position; and
generating a real encoding value matrix by selecting the signal hiding values of the signal hiding matrix subject to the ceiling of the signal limiting values of the signal limiting matrix.
43: A method for modulating one or more frames of a video signal, each of the one or more frames having a plurality of scan lines, each of the plurality of scan lines having a plurality of pixels, each pixel having an intensity, the method characterized by:
designating the plurality of scan lines in a field of the one or more frames in a pattern such that the plurality of scan lines are not paired throughout the field; and
altering the intensity of pixels of the plurality of scan lines pursuant to the pattern thereby creating a modulated video signal.
44: The method of claim 43, further characterized by selecting an irregular configuration as the pattern. 45: The method of claim 43 further characterized in that the pattern creates a significant amount of high/low and low/high changes in the field.
46: The method of claim 43 further characterized in that the pattern creates a significant amount of line to line differences with a plurality of pairs of adjacent scan lines in the field.
47: The method of claim 43 further characterized in that altering the intensity of the plurality of pixels comprises increasing and decreasing the intensity of pixels on the plurality of scan lines scan lines that are adjacent to each other such that a resulting comparison of the plurality of scan lines in the field reveals an unnatural change in intensity between two adjacent scan lines.
48: The method of claim 43 further characterized in that altering the intensity of pixels comprises selectively adding or removing intensity to the plurality of pixels.
PCT/US2004/027752 2003-08-26 2004-08-26 Method and system for enhanced modulation of video signals WO2005020560A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20040782267 EP1668901A2 (en) 2003-08-26 2004-08-26 Method and system for enhanced modulation of video signals

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US49803903P 2003-08-26 2003-08-26
US60/498,039 2003-08-26
US50213603P 2003-09-10 2003-09-10
US60/502,136 2003-09-10
US55415104P 2004-03-18 2004-03-18
US60/554,151 2004-03-18
US10/888,919 2004-07-09
US10/888,919 US7116374B2 (en) 2003-08-26 2004-07-09 Method and system for enhanced modulation of video signals

Publications (3)

Publication Number Publication Date
WO2005020560A2 WO2005020560A2 (en) 2005-03-03
WO2005020560A3 WO2005020560A3 (en) 2005-06-02
WO2005020560B1 true WO2005020560B1 (en) 2005-08-18

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Family Applications (1)

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PCT/US2004/027752 WO2005020560A2 (en) 2003-08-26 2004-08-26 Method and system for enhanced modulation of video signals

Country Status (3)

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US (9) US7116374B2 (en)
EP (1) EP1668901A2 (en)
WO (1) WO2005020560A2 (en)

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WO2005020560A2 (en) 2005-03-03
US6992726B2 (en) 2006-01-31
US20140328408A1 (en) 2014-11-06
US20050179815A1 (en) 2005-08-18
US8405772B2 (en) 2013-03-26
US20050195327A1 (en) 2005-09-08
US7116374B2 (en) 2006-10-03
US20100141836A1 (en) 2010-06-10
US9013630B2 (en) 2015-04-21
WO2005020560A3 (en) 2005-06-02
US20140176793A1 (en) 2014-06-26
US8823875B2 (en) 2014-09-02
US20050047595A1 (en) 2005-03-03
US7286188B2 (en) 2007-10-23
US20080056351A1 (en) 2008-03-06
US7586541B2 (en) 2009-09-08
US8704946B2 (en) 2014-04-22
EP1668901A2 (en) 2006-06-14
US7692723B2 (en) 2010-04-06
US20060274198A1 (en) 2006-12-07
US20130271652A1 (en) 2013-10-17

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