Invention Grant
- Patent Title: Multilevel data compression using a single compression engine
- Patent Title (中): 使用单个压缩引擎的多级数据压缩
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Application No.: US11710721Application Date: 2007-02-26
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Publication No.: US08279934B2Publication Date: 2012-10-02
- Inventor: Brad Allen Medford , Ahmad Ansari , Pierre Costa , John Robert Erickson
- Applicant: Brad Allen Medford , Ahmad Ansari , Pierre Costa , John Robert Erickson
- Applicant Address: US GA Atlanta
- Assignee: AT&T Intellectual Property I, L.P.
- Current Assignee: AT&T Intellectual Property I, L.P.
- Current Assignee Address: US GA Atlanta
- Agency: Jackson Walker L.L.P.
- Main IPC: H04N7/30
- IPC: H04N7/30 ; H04N7/46 ; H04N7/50
Abstract:
A single compression engine transmits first and second discrete cosine transform (DCT)-encoded signals. The first DCT-encoded signal uses at most t coefficient bits to represent each of a plurality of DCT coefficients. The second DCT-encoded signal uses at most u coefficient bits, where u is less than t, to represent each of the plurality of DCT coefficients.
Public/Granted literature
- US20070147495A1 Multilevel data compression using a single compression engine Public/Granted day:2007-06-28
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