Title:
【発明の名称】サブバンドコーダを有するエンコーディングシステム及びエンコーディングシステムを有するトランスミッタ
Document Type and Number:
Japanese Patent JP2931696
Kind Code:
B2
Abstract:
The encoding system comprises a subband coder (2) for subband coding a wideband digital signal and includes quantizing means (Q1, ..., QM, 6, 7) for quantizing block-by-block the subband signals (SB1, ..., SBM). The quantizing means comprise a bit need determining means (6) and a bit allocation means (7). The bit need determining means (6) are arranged for determining a bit need bm which bears a relation to the number of bits by which samples in a signal block in a subband SBm should be represented. The bit allocation means (7) is arranged for allocating a number of bits nm to the subband SBm on the basis of the bit needs bm and the available bit quantity B, where nm indicates the number of bits by which the samples in the subband SBm are represented. A new method is provided through which in the bit allocation means the bits are allocated to the subbands.
Inventors:
REIMONDO NIKORAASU YOHAN FUERUDEYUISU
GERITSUTO YOHAN KEESUMAN
GERITSUTO YOHAN KEESUMAN
Application Number:
JP13838791A
Publication Date:
August 09, 1999
Filing Date:
May 14, 1991
Export Citation:
Assignee:
KONIN* FUIRITSUPUSU EREKUTORONIKUSU NV
International Classes:
G06T9/00; G10L19/035; H03M7/30; H03M9/00; G10L19/02; H04B1/66; H04B14/04; (IPC1-7): H03M9/00; G10L7/04; H04B14/04
Domestic Patent References:
| JP5878200A | ||||
| JP59214346A | ||||
| JP6096041A | ||||
| JP60169249A | ||||
| JP329376A | ||||
| JP63285032A |
Other References:
【文献】米国特許5471350(US,A)
【文献】欧州特許出願公開400222(EP,A1)
【文献】欧州特許出願公開400222(EP,A1)
Attorney, Agent or Firm:
Masao Sawada