Part-I - Controller General of Patents Designs and Trademarks

(12) PATENT APPLICATION PUBLICATION (21) Application No.128/CHENP/2012 A
(19) INDIA
(22) Date of filing of Application :04/01/2012 (43) Publication Date : 21/06/2013
(54) Title of the invention : ENCODING A SIGNAL INTO A SCALABLE BITSTREAM AND DECODING SUCH
BITSTREAM
(51) International classification :H04N7/26
(31) Priority Document No :09162838.8
(32) Priority Date :16/06/2009
(33) Name of priority country :EPO
(86) International Application No
Filing Date
(87) International Publication No : NA
(61) Patent of Addition to Application
:NA
Number
:NA
Filing Date
(62) Divisional to Application Number
Filing Date
:PCT/IB2010/052540
:08/06/2010
:NA
:NA
(71)Name of Applicant :
1)KONINKLIJKE PHILIPS ELECTRONICS N.V.
Address of Applicant :GROENEWOUDSEWEG 1
EINDHOVEN 5621 BA NETHERLANDS
(72)Name of Inventor :
1)VAN DER VLEUTEN Renatus Josephus
2)DRIESEN Bas
(57) Abstract :
The invention relates to a bit-plane coding method of signals for example an image or video signal in the DCT transform domain.
The bit planes of the DCT blocks are transmitted bit-plane by bit-plane in order of significance. As each plane contains more
signal energy than the lower significant layers together the resulting bitstream is scalable in the sense that it may be truncated at
any position. The later the bitstream is truncated the smaller the residual error when the image is reconstructed. For each bit
plane a zone or partition of bit plane is created that encompasses all the non-zero bits of the DCT coefficients in that bit plane.
No. of Pages : 16 No. of Claims : 16
The Patent Office Journal 21/06/2013 13765