KR100205225B1 - Idct method in mpeg audio decoder - Google Patents

Idct method in mpeg audio decoder Download PDF

Info

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
Application number
KR1019960058349A
Other languages
Korean (ko)
Inventor
Yon-Hong Jung
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Priority to KR1019960058349A priority Critical patent/KR100205225B1/en
Priority to US08/975,181 priority patent/US6304847B1/en
Priority to KR1019970061471A priority patent/KR100488537B1/en
Application granted granted Critical
Publication of KR100205225B1 publication Critical patent/KR100205225B1/en
Priority to US09/634,234 priority patent/US6209015B1/en

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
KR1019960058349A 1996-11-20 1996-11-27 Idct method in mpeg audio decoder KR100205225B1 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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
EP0966107A4 (en) Variable length decoder and decoding method
IL138578A0 (en) Method and system for creating video programs
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
EP0909096A4 (en) Picture encoder and picture decoder
EP1339041A4 (en) Audio decoder and audio decoding method
GB9717803D0 (en) Synchronization method and apparatus in viterbi decoder
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
GB2308937B (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