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1. WO2020139606 - METHODS AND APPARATUS FOR OPTIMIZING STATION REFERENCE FINGERPRINT LOADING USING REFERENCE WATERMARKS

Publication Number WO/2020/139606
Publication Date 02.07.2020
International Application No. PCT/US2019/066605
International Filing Date 16.12.2019
IPC
H04N 21/2389 2011.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
23Processing of content or additional data; Elementary server operations; Server middleware
238Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
2389Multiplex stream processing, e.g. multiplex stream encrypting
H04N 21/845 2011.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
83Generation or processing of protective or descriptive data associated with content; Content structuring
845Structuring of content, e.g. decomposing content into time segments
H04N 21/8358 2011.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
83Generation or processing of protective or descriptive data associated with content; Content structuring
835Generation of protective data, e.g. certificates
8358involving watermark
H04N 21/435 2011.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
40Client devices specifically adapted for the reception of, or interaction with, content, e.g. STB ; Operations thereof
43Processing 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 synchronizing decoder's clock; Client middleware
435Processing of additional data, e.g. decrypting of additional data or reconstructing software from modules extracted from the transport stream
H04L 9/32 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Arrangements for secret or secure communication
32including means for verifying the identity or authority of a user of the system
CPC
H04H 2201/50
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
HBROADCAST COMMUNICATION
2201Aspects of broadcast communication
50characterised by the use of watermarks
H04H 2201/90
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
HBROADCAST COMMUNICATION
2201Aspects of broadcast communication
90characterised by the use of signatures
H04H 60/31
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
HBROADCAST COMMUNICATION
60Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
29Arrangements for monitoring broadcast services or broadcast-related services
31Arrangements for monitoring the use made of the broadcast services
H04H 60/37
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
HBROADCAST COMMUNICATION
60Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
35Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
37for identifying segments of broadcast information, e.g. scenes or extracting programme ID
H04H 60/40
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
HBROADCAST COMMUNICATION
60Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
35Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
38for identifying broadcast time or space
40for identifying broadcast time
H04H 60/58
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
HBROADCAST COMMUNICATION
60Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
56Arrangements characterised by components specially adapted for monitoring, identification or recognition covered by groups H04H60/29-H04H60/54
58of audio
Applicants
  • THE NIELSEN COMPANY (US), LLC [US]/[US]
Inventors
  • PETRO, James
  • NELSON, Dan
  • CROSS, Deborah
  • RANGANATHAN, Raghuram
Agents
  • JACKLIN, William, E.
Priority Data
16/232,50926.12.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHODS AND APPARATUS FOR OPTIMIZING STATION REFERENCE FINGERPRINT LOADING USING REFERENCE WATERMARKS
(FR) PROCÉDÉS ET APPAREIL D'OPTIMISATION DE CHARGEMENT D'EMPREINTES DIGITALES DE RÉFÉRENCE DE STATION À L'AIDE DES FILIGRANES DE RÉFÉRENCE
Abstract
(EN)
Methods, apparatus, systems and articles of manufacture are disclosed selectively generating and storing hashed reference signatures. An example method disclosed herein determining whether watermark coverage of a first media segment satisfies a dropout constraint, the first media segment corresponding to a first monitoring time interval of a media source feed and, when the watermark coverage of the first media segment does not satisfy the dropout constraint hashing first media signatures associated with the first media segment to generate corresponding first hashed signatures and generating first reference data for the first media segment, the first reference data including the first hashed signatures and the first media signatures. The example method further includes, when the watermark coverage of the first media segment satisfies the dropout constraint, generating second reference data for the first media segment, the second reference data including the first media signatures.
(FR)
L'invention concerne des procédés, un appareil, des systèmes et des articles de fabrication générant et mémorisant sélectivement des signatures de référence hachées. Un procédé donné à titre d'exemple selon la présente invention consiste à déterminer si une couverture de filigrane d'un premier segment multimédia satisfait une contrainte de perte, le premier segment multimédia correspondant à un premier intervalle de temps de surveillance d'une alimentation de la source multimédia et, lorsque la couverture de filigrane du premier segment multimédia ne satisfait pas la contrainte de perte, à hacher des premières signatures multimédias associées au premier segment multimédia pour générer des premières signatures hachées correspondantes et à générer des premières données de référence pour le premier segment multimédia, les premières données de référence comprenant les premières signatures hachées et les premières signatures multimédia. Le procédé donné à titre d'exemple consiste en outre à générer, lorsque la couverture de filigrane du premier segment multimédia satisfait la contrainte de perte, des secondes données de référence pour le premier segment multimédia, les secondes données de référence comprenant les premières signatures multimédia.
Also published as
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