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1. (CN101208972) Method and system for bandwidth expansion for voice communications

Office : China
Application Number: 200680023361.1 Application Date: 27.06.2006
Publication Number: 101208972 Publication Date: 25.06.2008
Publication Kind : A
Prior PCT appl.: Application Number:PCTUS2006025119 ; Publication Number:2007005444 Click to see the data
IPC:
H04Q 7/20
(Deprecated)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
Q
SELECTING
7
Selecting arrangements to which subscribers are connected via radio links or inductive links
20
in which the radio or inductive links are two-way links, e.g. mobile radio systems
CPC:
G10L 21/038
Applicants: Motorola Inc.
摩托罗拉公司
Inventors: Sathyendra Harsha M.
哈沙·M·萨廷德拉
Uysal Ismail
伊斯梅·乌伊萨尔
Harris John G.
约翰·G·哈里斯
Boillot Marc A.
马克·A·布瓦洛
Agents: lujin hua mude jun
中原信达知识产权代理有限责任公司
中原信达知识产权代理有限责任公司
Priority Data: 11171608 30.06.2005 US
Title: (EN) Method and system for bandwidth expansion for voice communications
(ZH) 用于语音通信的带宽扩展的方法及系统
Abstract: front page image
(EN) The invention concerns a method (400) and system (100) for bandwidth extension of voice for improving the quality of voice in a communication system. The method can include the steps of receiving (412) an unknown voice signal (105), identifying (414) the voice bandwidth (625) of the received unknown voice signal and establishing (418) a region of support (636) in view of the spectral content of the received voice signal. The method can further include the step of selecting (428) a combination of mapping databases (210, 212, 214) from a plurality of mapping databases. Each mapping database can be associated with a predetermined bandwidth extension range for extending the voice bandwidth.
(ZH)

本发明涉及一种语音带宽扩展的方法(400)及系统(100),用于改善通信系统中的语音质量。所述方法可以包括如下步骤:接收(412)未知语音信号(105);识别(414)接收到的未知语音信号的语音带宽(625);以及,考虑接收到的语音信号的谱包络,来建立(418)支持区域(636)。所述方法可以进一步包括以下步骤:从多个映射数据库中选择(428)映射数据库(210、212、214)组合。每个映射数据库可以与用于扩展语音带宽的预定带宽扩展范围相关联。


Also published as:
MXMX/a/2007/015921EP1900233BRPI0612564-6US20070005351IN9956/DELNP/2007WO/2007/005444