Invention Grant
- Patent Title: Pre-processed information embedding system
- Patent Title (中): 预处理信息嵌入系统
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Application No.: US11173948Application Date: 2005-07-01
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Publication No.: US07644282B2Publication Date: 2010-01-05
- Inventor: Rade Petrovic , Babak Tehranchi , Joseph M. Winograd , Douglas Wong
- Applicant: Rade Petrovic , Babak Tehranchi , Joseph M. Winograd , Douglas Wong
- Applicant Address: US CA San Diego
- Assignee: Verance Corporation
- Current Assignee: Verance Corporation
- Current Assignee Address: US CA San Diego
- Agency: Foley & Lardner LLP
- Main IPC: G06F21/00
- IPC: G06F21/00

Abstract:
Methods are provided for embedding auxiliary information in a host content signal which reduce the memory, bandwidth and computational complexity of the embedding and transmission systems. In one embodiment, a first reduced-scale signal is produced which corresponds to the host content embedded with a first logical value and producing a second reduced-scale signal corresponding to the host content embedded with a second logical value. A first set of segments from the first reduced-scale signal may be combined with a second set of segments from the second reduced-scale signal in a pre-defined manner to produce a composite embedded host content. Thus the storage and transmission requirements of the watermarking system are reduced to having to deal with only the original content plus two reduced-scale signals.
Public/Granted literature
- US20060005029A1 Pre-processed information embedding system Public/Granted day:2006-01-05
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