Invention Grant
- Patent Title: Spectrum coding apparatus, spectrum decoding apparatus, acoustic signal transmission apparatus, acoustic signal reception apparatus and methods thereof
- Patent Title (中): 频谱编码装置，频谱解码装置，声信号发送装置，声信号接收装置及其方法
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Application No.: US10576270Application Date: 2004-10-25
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Publication No.: US07949057B2Publication Date: 2011-05-24
- Inventor: Masahiro Oshikiri
- Applicant: Masahiro Oshikiri
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Dickinson Wright PLLC
- Priority: JP2003-363080 20031023
- International Application: PCT/JP2004/016176 WO 20041025
- International Announcement: WO2005/040749 WO 20050506
- Main IPC: H04L27/28
- IPC: H04L27/28
Abstract:
A spectrum coding apparatus capable of performing coding at a low bit rate and with high quality is disclosed. This apparatus is provided with a section that performs the frequency transformation of a first signal and calculates a first spectrum, a section that converts the frequency of a second signal and calculates a second spectrum, a section that estimates the shape of the second spectrum in a band of FL≦k
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