Invention Grant
US08965775B2 Allocation of bits in an enhancement coding/decoding for improving a hierarchical coding/decoding of digital audio signals
有权
用于改善数字音频信号的分层编码/解码的增强编码/解码中的比特分配
- Patent Title: Allocation of bits in an enhancement coding/decoding for improving a hierarchical coding/decoding of digital audio signals
- Patent Title (中): 用于改善数字音频信号的分层编码/解码的增强编码/解码中的比特分配
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Application No.: US13382794Application Date: 2010-06-25
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Publication No.: US08965775B2Publication Date: 2015-02-24
- Inventor: David Virette , Pierre Berthet
- Applicant: David Virette , Pierre Berthet
- Applicant Address: FR Paris
- Assignee: Orange
- Current Assignee: Orange
- Current Assignee Address: FR Paris
- Agency: Westman, Champlin & Koehler, P.A.
- Agent David D. Brush
- Priority: FR0954688 20090707
- International Application: PCT/FR2010/051308 WO 20100625
- International Announcement: WO2011/004098 WO 20110113
- Main IPC: G10L19/00
- IPC: G10L19/00 ; G10L19/24 ; G10L19/002 ; G10L19/02 ; G10L19/038
Abstract:
A method of binary allocation in an enhancement coding/decoding for improving a hierarchical coding/decoding of digital audio signals, including a core coding/decoding in a first frequency band and a band extension coding/decoding in a second frequency band. For a predetermined number of bits to be allocated for the enhancement coding/decoding, a first number of bits is allocated to a coding/decoding for correcting the core coding/decoding in the first frequency band and according to a first mode of coding/decoding and a second number of bits is allocated to an enhancement coding/decoding for improving the extension coding/decoding in the second frequency band and according to a second mode of coding/decoding. Also provided are an allocation module implementing the method and a coder and decoder including this module.
Public/Granted literature
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