KR100205225B1 - Idct method in mpeg audio decoder - Google Patents
Idct method in mpeg audio decoder Download PDFInfo
- Publication number
- KR100205225B1 KR100205225B1 KR1019960058349A KR19960058349A KR100205225B1 KR 100205225 B1 KR100205225 B1 KR 100205225B1 KR 1019960058349 A KR1019960058349 A KR 1019960058349A KR 19960058349 A KR19960058349 A KR 19960058349A KR 100205225 B1 KR100205225 B1 KR 100205225B1
- Authority
- KR
- South Korea
- Prior art keywords
- audio decoder
- mpeg audio
- idct method
- idct
- mpeg
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
- H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/24—Systems for the transmission of television signals using pulse code modulation
- H04N7/52—Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
- G10H2250/131—Mathematical functions for musical analysis, processing, synthesis or composition
- G10H2250/215—Transforms, i.e. mathematical transforms into domains appropriate for musical signal processing, coding or compression
- G10H2250/221—Cosine transform; DCT [discrete cosine transform], e.g. for use in lossy audio compression such as MP3
- G10H2250/225—MDCT [Modified discrete cosine transform], i.e. based on a DCT of overlapping data
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960058349A KR100205225B1 (en) | 1996-11-27 | 1996-11-27 | Idct method in mpeg audio decoder |
US08/975,181 US6304847B1 (en) | 1996-11-20 | 1997-11-20 | Method of implementing an inverse modified discrete cosine transform (IMDCT) in a dial-mode audio decoder |
KR1019970061471A KR100488537B1 (en) | 1996-11-20 | 1997-11-20 | Reproduction Method and Filter of Dual Mode Audio Encoder |
US09/634,234 US6209015B1 (en) | 1996-11-20 | 2000-08-08 | Method of implementing dual-mode audio decorder and filter therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960058349A KR100205225B1 (en) | 1996-11-27 | 1996-11-27 | Idct method in mpeg audio decoder |
Publications (1)
Publication Number | Publication Date |
---|---|
KR100205225B1 true KR100205225B1 (en) | 1999-07-01 |
Family
ID=19483970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960058349A KR100205225B1 (en) | 1996-11-20 | 1996-11-27 | Idct method in mpeg audio decoder |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100205225B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100284402B1 (en) * | 1997-12-26 | 2001-03-02 | 김영환 | Arithmetic Unit of AC-3 Audio Decoder |
KR100300844B1 (en) * | 1997-12-26 | 2001-09-03 | 박종섭 | Imdct circuit of ac-3 decoder |
-
1996
- 1996-11-27 KR KR1019960058349A patent/KR100205225B1/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100284402B1 (en) * | 1997-12-26 | 2001-03-02 | 김영환 | Arithmetic Unit of AC-3 Audio Decoder |
KR100300844B1 (en) * | 1997-12-26 | 2001-09-03 | 박종섭 | Imdct circuit of ac-3 decoder |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU5527598A (en) | Selective compression network in an mpeg compatible decoder | |
GB2318954B (en) | Reed-solomon decoder for use in advanced television | |
AU2513695A (en) | Mpeg decoder | |
GB2324432B (en) | MPEG 11 system and PES decoder | |
GB2318029B (en) | Audio coding method and apparatus | |
GB2323759B (en) | Audio coding method and apparatus | |
DE69628972D1 (en) | MPEG audio decoder | |
IL138578A0 (en) | Method and system for creating video programs | |
EP0966107A4 (en) | Variable length decoder and decoding method | |
HK1006083A1 (en) | Object-throwing video game system and the method | |
EP0889651A4 (en) | Picture encoder and picture decoder | |
EP0870248A4 (en) | Apparatus and method for video decoding | |
EP0880858A4 (en) | Facsimile-based video compression method and system | |
EP0909096A4 (en) | Picture encoder and picture decoder | |
EP1339041A4 (en) | Audio decoder and audio decoding method | |
GB2333414B (en) | Video decoding method video decoder and digital TV system using the video decoding method and video decoder | |
GB2299491B (en) | Decoder and method therefor | |
EP1001542A4 (en) | Voice decoder and voice decoding method | |
EP1014725A4 (en) | Decoder and decoding method | |
EP1001541A4 (en) | Sound decoder and sound decoding method | |
KR100205225B1 (en) | Idct method in mpeg audio decoder | |
GB9627044D0 (en) | Inverse quantizer for use in MPEG-2 decoder | |
GB2333202B (en) | MPEG-decoder and MPEG decoding method with two memory controllers | |
GB2322776B (en) | Audio coding method and apparatus | |
EP1098314A4 (en) | Method and apparatus for decoding |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
GRNT | Written decision to grant | ||
LAPS | Lapse due to unpaid annual fee |