Invention Grant
- Patent Title: Processing digital data
- Patent Title (中): 处理数字数据
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Application No.: US10526573Application Date: 2003-08-08
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Publication No.: US07904301B2Publication Date: 2011-03-08
- Inventor: Rodney Hugh Densham , William Edmund Cranstoun Kentish , Nicholas John Haynes , Peter Charles Eastty
- Applicant: Rodney Hugh Densham , William Edmund Cranstoun Kentish , Nicholas John Haynes , Peter Charles Eastty
- Applicant Address: GB Weybridge
- Assignee: Sony Europe Limited
- Current Assignee: Sony Europe Limited
- Current Assignee Address: GB Weybridge
- Agency: Oblon, Spivak, McClelland, Maier & Neusadt, L.L.P.
- Priority: GB0220788.4 20020906
- International Application: PCT/GB03/03490 WO 20030808
- International Announcement: WO2004/023471 WO 20040318
- Main IPC: G10L19/00
- IPC: G10L19/00
Abstract:
An original digital audio signal represents unimpaired audio information. The digital audio signal is compressed and encrypted without substantial impairment to produce a first audio signal. A second, unencrypted, audio signal is produced. The first and second audio signals are combined. Preferably the first audio signal is losslessy compressed. The second audio signal may be an impaired version of the original digital audio signal.
Public/Granted literature
- US20060143018A1 Processing digital data Public/Granted day:2006-06-29
Information query
