Invention Grant
- Patent Title: Information signal encoding using a forward-adaptive prediction and a backwards-adaptive quantization
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Application No.: US12300602Application Date: 2007-02-28
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Publication No.: US09754601B2Publication Date: 2017-09-05
- Inventor: Jens Hirschfeld , Gerald Schuller , Manfred Lutzky , Ulrich Kraemer , Stefan Wabnik
- Applicant: Jens Hirschfeld , Gerald Schuller , Manfred Lutzky , Ulrich Kraemer , Stefan Wabnik
- Applicant Address: DE Munich
- Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Current Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Current Assignee Address: DE Munich
- Agency: Perkins Coie LLP
- Agent Michael A. Glenn
- Priority: DE102006022346 20060512
- International Application: PCT/EP2007/001730 WO 20070228
- International Announcement: WO2007/131564 WO 20071122
- Main IPC: G10L19/06
- IPC: G10L19/06 ; G10L19/032 ; G10L19/00 ; G10L19/035
Abstract:
A very coarse quantization exceeding the measure determined by the masking threshold without or only very little quality losses is enabled by quantizing not immediately the prefiltered signal, but a prediction error obtained by forward-adaptive prediction of the prefiltered signal. Due to the forward adaptivity, the quantizing error has no negative effect on the prediction on the decoder side.
Public/Granted literature
- US20090254783A1 Information Signal Encoding Public/Granted day:2009-10-08
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