Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO2007011084) APPARATUS AND METHOD OF ENCODING AND DECODING AUDIO SIGNAL
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/011084 International Application No.: PCT/KR2005/002307
Publication Date: 25.01.2007 International Filing Date: 18.07.2005
IPC:
H03M 7/00 (2006.01)
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
M
CODING, DECODING OR CODE CONVERSION, IN GENERAL
7
Conversion of a code where information is represented by a given sequence or number of digits to a code where the same information is represented by a different sequence or number of digits
Applicants:
LG ELECTRONICS INC. [KR/KR]; 20, Yoido-dong Youngdungpo-gu Seoul 150-721, KR (AllExceptUS)
NOLL, Peter [DE/DE]; DE (AllExceptUS)
LIEBCHEN, Tilman [DE/DE]; DE (UsOnly)
Inventors:
LIEBCHEN, Tilman; DE
Agent:
BAHNG, Hae Cheol ; 15th Floor Yosam Building, 648-23 Yeoksam-dong, Kangnam-gu Seoul 135-080, KR
Priority Data:
Title (EN) APPARATUS AND METHOD OF ENCODING AND DECODING AUDIO SIGNAL
(FR) APPAREIL ET PROCEDE DE CODAGE ET DE DECODAGE DE SIGNAL AUDIO
Abstract:
(EN) A method and apparatus of encoding and decoding an audio file are disclosed. A channel of an audio data frame included in an audio file is subdivided into a plurality of blocks hierarchically at one or more block switching levels. Each block results from a subdivision of a superordinate block of double length. Then, first block switching information indicating a total number of the block switching levels is generated. And, second block switching information indicating how the blocks are subdivided from the channel at the block switching levels is generated afterwards. Herein, a total length of the second block switching information is determined based on the first block switching information.
(FR) Cette invention concerne un procédé et un appareil servant à coder et à décoder un fichier audio. A cet effet, un canal d'une trame de données audio incluse dans un fichier audio est divisé en plusieurs blocs en fonction d'une hiérarchie de subdivision, à un ou plusieurs niveaux de commutation de bloc. Chaque bloc résulte de la subdivision d'un bloc surordonné de longueur double. Puis, une première information de commutation de bloc indiquant un nombre total de niveaux de commutation de bloc est générée. Après quoi, une seconde information de commutation de bloc indiquant comment les blocs sont divisés à partir du canal auxdits niveaux de commutation de bloc est générée. Ainsi, la longueur totale de la seconde information de commutation de bloc est déterminée sur la base de la première information de commutation de bloc.
front page image
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)