Invention Grant
- Patent Title: Source coding scheme using entropy coding to code a quantized signal on a determined number of bits
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Application No.: US15417232Application Date: 2017-01-27
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Publication No.: US10375394B2Publication Date: 2019-08-06
- Inventor: Guillaume Fuchs , Benjamin Schubert , Grzegorz Pietrzyk , Markus Multrus , Bernhard Grill
- Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- 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: EP14178780 20140728
- Main IPC: H04N19/91
- IPC: H04N19/91 ; H04N19/126 ; G10L19/035 ; H04N19/13 ; H04N19/184 ; H04N19/44 ; H04N19/70

Abstract:
Embodiments of the present invention provide an encoder comprising a quantization stage, an entropy encoder, a residual quantization stage and a coded signal former. The quantization stage is configured to quantize an input signal using a dead zone in order to obtain a plurality of quantized values. The entropy encoder is configured to encode the plurality of quantized values using an entropy encoding scheme in order to obtain a plurality of entropy encoded values. The residual quantization stage is configured to quantize a residual signal caused by the quantization stage, wherein the residual quantization stage is configured to determine at least one quantized residual value in dependence on the dead zone of the quantization stage. The coded signal former is configured to form a coded signal from the plurality of entropy encoded values and the at least one quantized residual value.
Public/Granted literature
- US20170142412A1 ENCODER, DECODER, SYSTEM AND METHODS FOR ENCODING AND DECODING Public/Granted day:2017-05-18
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