KR950022177A - Band Division Coding Device - Google Patents
Band Division Coding Device Download PDFInfo
- Publication number
- KR950022177A KR950022177A KR1019930027992A KR930027992A KR950022177A KR 950022177 A KR950022177 A KR 950022177A KR 1019930027992 A KR1019930027992 A KR 1019930027992A KR 930027992 A KR930027992 A KR 930027992A KR 950022177 A KR950022177 A KR 950022177A
- Authority
- KR
- South Korea
- Prior art keywords
- band
- mask
- frequency spectrum
- mnr
- noise ratio
- Prior art date
Links
Abstract
본 발명은 대역 분할 부호화 장치에 관한 것으로 이를 위하여 입력되는 신호를 균일한 주파수 대역으로 분할하는 대역분할 필터와, 주파수 스텍트럼을 얻기위한 주파수 스텍트럼 분석기와, 마스크 대 잡음비를 계산하는 마스크 대 잡음비 계산부와, 마스크 대 잡음비 계산에 따라 각 밴드로 비트를 할당하는 적응 비트 할당부와, 대역분할 된 주파수 신호를 양자화하는 양자화기와, 양자화된 다수의 정보신호와 비트 할당부의 출력신호를 다중화하여 채널을 통해 전송하는 다중화기로 구성됨으로써 양자화 특성에 따른 잡음을 줄이고 또한 고속부호화가 가능하도록 한 것이다.The present invention relates to a band division encoding apparatus, and a band division filter for dividing an input signal into a uniform frequency band, a frequency spectrum analyzer for obtaining a frequency spectrum, a mask-to-noise ratio calculator for calculating a mask-to-noise ratio, An adaptive bit allocator for allocating bits to each band according to a mask-to-noise ratio calculation, a quantizer for quantizing band-divided frequency signals, and multiplexing the output signals of a plurality of quantized information signals and bit allocation units and transmitting them through a channel It is composed of a multiplexer to reduce noise due to quantization characteristics and to enable fast encoding.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제2도는 본 발명에 따른 대역 분할 부호화 장치를 나타내는 블럭 구성도.2 is a block diagram illustrating a band division encoding apparatus according to the present invention.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930027992A KR950022177A (en) | 1993-12-16 | 1993-12-16 | Band Division Coding Device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930027992A KR950022177A (en) | 1993-12-16 | 1993-12-16 | Band Division Coding Device |
Publications (1)
Publication Number | Publication Date |
---|---|
KR950022177A true KR950022177A (en) | 1995-07-28 |
Family
ID=66850630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019930027992A KR950022177A (en) | 1993-12-16 | 1993-12-16 | Band Division Coding Device |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR950022177A (en) |
-
1993
- 1993-12-16 KR KR1019930027992A patent/KR950022177A/en not_active Application Discontinuation
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E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |