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(12) PATENT APPLICATION PUBLICATION
(19) INDIA (21) APPLICATION No: 976/CHE/2004A
(22) Date of filing of Application:24/09/2004 (43) Publication Date: 09/06/2006
(54) Title of the invention:
WATERMARKING SCHEME FOR
DIGITAL VIDEO.
(51)International classification:G 06 K 9/00
(31) Priority Document No.10/673,894
(32) Priority Date:29/09/2003
(33) Name of priority country:U.S.A
(87) WIPO No. :
(61) Patent of addition to
Application No. :
Filed on:
(62) Divisional to
Applcation No.:
Filed on:
(71) Name of Applicant
LUCENT TECHNOLOGIES INC,
Address of Applicant:
600 MOUNTAIN AVENUE,MURRAY
HILL,,
NEW JERSEY 07974-0636,,
U.S.A.
(72) Name of the Inventor(s):
ZARRABIZADEH,MOHAMMED,
HOSSEIN.
(57)Abstract
Data to be impressed upon the average value of a chrominance portion of a block, is replicated at least once. The
original and each replica is impressed on blocks in the same block position of separate frames. The frames that have
like-positioned blocks that are carrying the same data are considered to be a group. Specific blocks of the frame may
be embedded with a particular known data sequence rather than user data. Each group may employ a different known
sequence. Instead of simply repeating the data for each like-positioned block of a group, the amount added to the
average value for each such block may be changed slightly from frame to frame in group, even when the complexity
of the blocks is the same. At a receiver, the multiple instances of the same data bit are extracted and combined to form
a single received bit.
The Patent Office Journal 09/06/2006 10842