EP 1112625 A1 20010704 - METHOD AND APPARATUS FOR CODING AN INFORMATION SIGNAL
Title (en)
METHOD AND APPARATUS FOR CODING AN INFORMATION SIGNAL
Title (de)
VERFAHREN UND GERÄT ZUR KODIERUNG VON INFORMATIONSIGNALEN
Title (fr)
PROCEDE ET APPAREIL DE CODAGE D'UN SIGNAL D'INFORMATIONS
Publication
Application
Priority
- US 9919217 W 19990824
- US 15143098 A 19980911
Abstract (en)
[origin: WO0016501A1] To achieve high quality speech reconstruction at low bit rates, constraints on position combinations among two or more pulses (403) are implemented. By placing constraints on position combinations, certain combinations of pulses are prohibited which allows the most significant pulses to always be coded, thereby improving speech quality. After all valid combinations are considered, a list of pulse pairs (codebook) which can be indexed using a single, predetermined bit length codeword is produced. The codeword is transmitted to a destination where it is used by a decoder to reconstruct the original information signal.
IPC 1-7
IPC 8 full level
H03M 7/30 (2006.01)
CPC (source: EP KR)
G10L 19/10 (2013.01 - EP); G10L 19/12 (2013.01 - KR); G10L 19/107 (2013.01 - EP)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0016501 A1 20000323; AT E328407 T1 20060615; DE 69931641 D1 20060706; DE 69931641 T2 20061005; EP 1112625 A1 20010704; EP 1112625 A4 20040616; EP 1112625 B1 20060531; JP 2002525667 A 20020813; JP 4460165 B2 20100512; KR 100409167 B1 20031212; KR 20010073146 A 20010731
DOCDB simple family (application)
US 9919217 W 19990824; AT 99943854 T 19990824; DE 69931641 T 19990824; EP 99943854 A 19990824; JP 2000570919 A 19990824; KR 20017003129 A 20010310