Speech and music signal coder/decoder

Details Speech and music signal coder/decoder Speech and music signal coder/decoder

Filed on

2005-03-08

Date issued

2005-03-08

Examiner

McFadden, Susan (Department: 2655)

Patent Class

Data processing: speech signal processing, linguistics, language

SubClass

Speech signal processing

SubSubClass

Synthesis

Other Related Categories

C702S010000, C702S010000

Type

Reexamination Certificate

Status

active

Patent number

06865534

Description

ABSTRACT:
It is an object of the invention to excellently code a speech and music signal over all of bands in a speech and music signal code decoding apparatus having a band divided constitution. In order to achieve the object, a residue vector is generated by using an inverse filter (230of FIG.3) from a difference vector outputted from a first differencer (180of FIG.3). A band selecting circuit (250of FIG.3) generates n pieces of subvectors by using a component included in an arbitrary band in the residue vector subjected to orthogonal transformation. An orthogonal transformation coefficient quantizing circuit (260of FIG.3) quantizes n pieces of the subvectors.

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