Title:
ビットストリームの変更方法及び装置
Document Type and Number:
Japanese Patent JP4564753
Kind Code:
B2
Abstract:
The bitstream includes digital codes representing an information signal. At least one digital code is selected. The code occupies a part of the bitstream which is to contain at least one watermark code which represents a watermark perceptible in the information signal. The selected digital code(s) are removed from the said part of the bitstream. The watermark code(s) are put in the said part of the bitstream in place of the selected code(s). The number of bits of the selected code(s) removed from the said part of the bitstream is greater than or equal to the number of bits of the said watermark code(s) put in the said part. The removed selected code(s) are appended to an end of the bitstream and/or placed in watermark user data fields created in the bitstream.
Inventors:
Taylor andrew robert
Stone, Jonathan James
Perry, Jason Charles
Tupson, Daniel
Stone, Jonathan James
Perry, Jason Charles
Tupson, Daniel
Application Number:
JP2003567096A
Publication Date:
October 20, 2010
Filing Date:
February 05, 2003
Export Citation:
Assignee:
Sony Europe Limited
International Classes:
H04N7/30; G06T1/00; H03M7/30; H04N7/08; H04N7/081; H04N7/167; H04N7/24; H04N7/26; H04N7/32
Domestic Patent References:
| JP9233455A | ||||
| JP8256321A |
Foreign References:
| WO2001006455A1 |
Attorney, Agent or Firm:
Junichi Omori