Invention Grant
- Patent Title: Slice mask and moat pattern partial encryption
- Patent Title (中): 切片面罩和护城河图案部分加密
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Application No.: US11526316Application Date: 2006-09-25
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Publication No.: US07751563B2Publication Date: 2010-07-06
- Inventor: Brant L. Candelore , Henry Derovanessian , Leo M. Pedlow, Jr.
- Applicant: Brant L. Candelore , Henry Derovanessian , Leo M. Pedlow, Jr.
- Applicant Address: JP Tokyo US NJ Park Ridge
- Assignee: Sony Corporation,Sony Electronics Inc.
- Current Assignee: Sony Corporation,Sony Electronics Inc.
- Current Assignee Address: JP Tokyo US NJ Park Ridge
- Agency: Miller Patent Services
- Agent Jerry A. Miller
- Main IPC: H04N7/167
- IPC: H04N7/167

Abstract:
A selective encryption encoder consistent with certain embodiments of the invention has vertical and/or horizontal stripes encrypted. In one embodiment, packets are examined in the digital video signal to identify a specified packet type, the specified packet type being both packets carrying intra-coded data representing a pattern of horizontal stripes across an image and packets carrying intra-coded data representing a pattern of vertical stripes across an image. The packets identified as being of the specified packet type are encrypted using a first encryption method to produce first encrypted packets. These first encrypted packets are then used to replace the unencrypted packets in the digital video signal to produce a partially encrypted video signal. The packets of the specified type can also be multiple encrypted and replaced in the data stream to produce a multiple encrypted video data stream. This abstract is not to be considered limiting since embodiments consistent with the present invention may incorporate more, fewer or differing elements than mentioned in this abstract.
Public/Granted literature
- US20070098166A1 Slice mask and moat pattern partial encryption Public/Granted day:2007-05-03
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