WO2002007425A3 - System for variable-rate modulation and demodulation of data using information embedding in television signals - Google Patents

System for variable-rate modulation and demodulation of data using information embedding in television signals Download PDF

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Publication number
WO2002007425A3
WO2002007425A3 PCT/US2001/019036 US0119036W WO0207425A3 WO 2002007425 A3 WO2002007425 A3 WO 2002007425A3 US 0119036 W US0119036 W US 0119036W WO 0207425 A3 WO0207425 A3 WO 0207425A3
Authority
WO
WIPO (PCT)
Prior art keywords
data
user
variable
selectors
signal
Prior art date
Application number
PCT/US2001/019036
Other languages
French (fr)
Other versions
WO2002007425A2 (en
Inventor
Brian Chen
Richard J Barron
Gregory W Wornell
Original Assignee
Chinook Communications Inc
Brian Chen
Richard J Barron
Gregory W Wornell
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 Chinook Communications Inc, Brian Chen, Richard J Barron, Gregory W Wornell filed Critical Chinook Communications Inc
Priority to AU2001266903A priority Critical patent/AU2001266903A1/en
Publication of WO2002007425A2 publication Critical patent/WO2002007425A2/en
Publication of WO2002007425A3 publication Critical patent/WO2002007425A3/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]
    • H04N21/20—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
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • 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
    • H04N21/2385—Channel allocation; Bandwidth allocation
    • 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
    • H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
    • H04N21/2402—Monitoring of the downstream path of the transmission network, e.g. bandwidth available
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/637—Control signals issued by the client directed to the server or network components
    • H04N21/6373—Control signals issued by the client directed to the server or network components for rate control, e.g. request to the server to modify its transmission rate
    • 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
    • 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
    • H04N7/087—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 with signal insertion during the vertical blanking interval only
    • H04N7/088—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 with signal insertion during the vertical blanking interval only the inserted signal being digital
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H04N7/106—Adaptations for transmission by electrical cable for domestic distribution

Abstract

A system is described for providing data signals to user ends of a cable network (199) using variable-rate information-embedding. The system includes a DR selector (225) that selects (210), a host signal from two or more TV signals based on an association between the host signal and the user. A first data signal is embedded (220) into the host signal at a first data rate (DR), thereby generating a composite signal that comprises a digitally watermarked version of the host signal. The DR selectors may be included in modulators (110). Additionally DR selectors may be included in demodulators at the users ends. The DR selectors may select a DR for embedding data to be transmitted to a particular user based on the S/N ratio over the network. Determination of this ratio may be partially based on the distance from the user to the headend. Also the DR may be based on a user-defined acceptable level of distortion.
PCT/US2001/019036 2000-07-14 2001-06-14 System for variable-rate modulation and demodulation of data using information embedding in television signals WO2002007425A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001266903A AU2001266903A1 (en) 2000-07-14 2001-06-14 System and method for variable-rate modulation and demodulation of data using information embedding in television signals

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US61651800A 2000-07-14 2000-07-14
US09/616,518 2000-07-14

Publications (2)

Publication Number Publication Date
WO2002007425A2 WO2002007425A2 (en) 2002-01-24
WO2002007425A3 true WO2002007425A3 (en) 2002-06-13

Family

ID=24469817

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/019036 WO2002007425A2 (en) 2000-07-14 2001-06-14 System for variable-rate modulation and demodulation of data using information embedding in television signals

Country Status (2)

Country Link
AU (1) AU2001266903A1 (en)
WO (1) WO2002007425A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE42558E1 (en) 2001-12-18 2011-07-19 Omereen Wireless, Llc Joint adaptive optimization of soft decision device and feedback equalizer

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6744906B2 (en) 1995-05-08 2004-06-01 Digimarc Corporation Methods and systems using multiple watermarks
US20030140351A1 (en) * 1998-04-17 2003-07-24 Hoarty W. Leo Cable television system compatible bandwidth upgrade using embedded digital channels
US8091025B2 (en) 2000-03-24 2012-01-03 Digimarc Corporation Systems and methods for processing content objects

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5889868A (en) * 1996-07-02 1999-03-30 The Dice Company Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data
US6037984A (en) * 1997-12-24 2000-03-14 Sarnoff Corporation Method and apparatus for embedding a watermark into a digital image or image sequence
US6044396A (en) * 1995-12-14 2000-03-28 Time Warner Cable, A Division Of Time Warner Entertainment Company, L.P. Method and apparatus for utilizing the available bit rate in a constrained variable bit rate channel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6044396A (en) * 1995-12-14 2000-03-28 Time Warner Cable, A Division Of Time Warner Entertainment Company, L.P. Method and apparatus for utilizing the available bit rate in a constrained variable bit rate channel
US5889868A (en) * 1996-07-02 1999-03-30 The Dice Company Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data
US6037984A (en) * 1997-12-24 2000-03-14 Sarnoff Corporation Method and apparatus for embedding a watermark into a digital image or image sequence

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE42558E1 (en) 2001-12-18 2011-07-19 Omereen Wireless, Llc Joint adaptive optimization of soft decision device and feedback equalizer

Also Published As

Publication number Publication date
WO2002007425A2 (en) 2002-01-24
AU2001266903A1 (en) 2002-01-30

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