公开(公告)号：WO0031720A2

公开(公告)日：2000-06-02

申请号：PCT/SE9902073

申请日：1999-11-12

Applicant: ERICSSON TELEFON AB L M

Inventor： SVEDBERG JONAS ,  EKUDDEN ERIK ,  UVLIDEN ANDERS ,  JOHANSSON INGEMAR

IPC: G10L11/02 ,  G10L15/00 ,  G10L

CPC classification number: G10L25/78 ,  G10L2025/783

Abstract: Perceptually relevant non-speech information can be preserved during encoding of an audio signal by determining whether the audio signal includes such information (122, 124, 125). If so, a speech/noise classification of the audio signal is overriden (43) to prevent misclassification of the audio signal as noise.

Abstract translation: 通过确定音频信号是否包括这样的信息（122,124,125）可以在编码音频信号期间保留感知相关的非语音信息。 如果是这样，音频信号的语音/噪声分类被覆盖（43），以防止音频信号被错误地分类为噪声。

公开(公告)号：WO0016314A2

公开(公告)日：2000-03-23

申请号：PCT/SE9901432

申请日：1999-08-24

Applicant: ERICSSON TELEFON AB L M

Inventor： UVLIDEN ANDERS ,  SVEDBERG JONAS

IPC: G10L19/22 ,  H03M7/30 ,  H03M7/36 ,  G10L19/12

CPC classification number: G10L19/22

Abstract: A multi-codebook fixed bitrate CELP signal block encoder/decoder includes a codebook selector (22) for selecting, for each signal block, a corresponding codebook identification in accordance with a deterministic selection procedure that is independent of signal type. Included are also means for encoding/decoding each signal block by using a codebook having the selected codebook identification.

Abstract translation: 多码本固定比特率CELP信号块编码器/解码器包括码本选择器（22），用于根据与信号类型无关的确定性选择过程为每个信号块选择对应的码本标识。 还包括通过使用具有选择的码本标识的码本对每个信号块进行编码/解码的装置。

公开(公告)号：HK1117629A1

公开(公告)日：2009-01-16

申请号：HK08107885

申请日：2008-07-16

Applicant: ERICSSON TELEFON AB L M

Inventor： JOHANNSON INGEMAR ,  SVEDBERG JONAS ,  UVLIDEN ANDERS

IPC: G10L19/12 ,  G10L19/08 ,  H03M7/36

Abstract: In producing an approximation of an original speech signal from encoded information about the original speech signal, current parameters (EnPar(i)) associated with a current segment of the original speech signal are determined from the encoded information. Reproduction of a noise component of the original speech signal is improved by using at least one of the current parameters and corresponding previous parameters respectively associated with previous segments of the original speech signal (31, 37, 39) to produce a modified parameter (EnPar(i) mod ). The modified parameter is then used (25, 40) to produce an approximation of the current segment of the original speech signal.

公开(公告)号：DE60131009T2

公开(公告)日：2008-07-17

申请号：DE60131009

申请日：2001-08-29

Applicant: ERICSSON TELEFON AB L M

Inventor： MINDE TOR BJOERN ,  STEINARSON ARNE ,  UVLIDEN ANDERS

IPC: G10L19/12

Abstract: A multi-part fixed codebook includes both individual fixed codebooks for each channel and a shared fixed codebook. Although the shared fixed codebook is common to all channels, the channels are associated with individual lags. Furthermore, the individual fixed codebooks are associated with individual gains, and the individual lags are also associated with individual gains. The excitation from each individual fixed codebook is added to the corresponding excitation (a shared codebook vector, but individual lags and gains for each channel) from the shared fixed codebook.

公开(公告)号：HK1097080A1

公开(公告)日：2007-06-15

申请号：HK07101656

申请日：2007-02-12

Applicant: ERICSSON TELEFON AB L M

Inventor： SVEDBERG JONAS ,  EKUDDEN ERIK ,  UVLIDEN ANDERS ,  JOHANSSON INGEMAR

IPC: G10L25/78 ,  G10L11/02 ,  G10L15/00 ,  G10L19/012 ,  G10L19/04

Abstract: Perceptually relevant non-speech information can be preserved during encoding of an audio signal by determining whether the audio signal includes such information. If so, a speech/noise classification of the audio signal is overriden to prevent misclassification of the audio signal as noise.

公开(公告)号：SE519976C2

公开(公告)日：2003-05-06

申请号：SE0003284

申请日：2000-09-15

Applicant: ERICSSON TELEFON AB L M

Inventor： MINDE TOR BJOERN ,  STEINARSON ARNE ,  UVLIDEN ANDERS

IPC: G10L19/12 ,  G10L19/00

Abstract: A multi-part fixed codebook includes both individual fixed codebooks for each channel and a shared fixed codebook. Although the shared fixed codebook is common to all channels, the channels are associated with individual lags. Furthermore, the individual fixed codebooks are associated with individual gains, and the individual lags are also associated with individual gains. The excitation from each individual fixed codebook is added to the corresponding excitation (a shared codebook vector, but individual lags and gains for each channel) from the shared fixed codebook.

公开(公告)号：DE69942288D1

公开(公告)日：2010-06-02

申请号：DE69942288

申请日：1999-09-10

Applicant: ERICSSON TELEFON AB L M

Inventor： JOHANNSON INGEMAR ,  SVEDBERG JONAS ,  UVLIDEN ANDERS

IPC: G10L19/00 ,  G10L19/12 ,  G10L19/08 ,  H03M7/36

Abstract: In producing an approximation of an original speech signal from encoded information about the original speech signal, current parameters (EnPar(i)) associated with a current segment of the original speech signal are determined from the encoded information. Reproduction of a noise component of the original speech signal is improved by using at least one of the current parameters and corresponding previous parameters respectively associated with previous segments of the original speech signal (31, 37, 39) to produce a modified parameter (EnPar(i) mod ). The modified parameter is then used (25, 40) to produce an approximation of the current segment of the original speech signal.

公开(公告)号：ES2291340T3

公开(公告)日：2008-03-01

申请号：ES01961541

申请日：2001-08-29

Applicant: ERICSSON TELEFON AB L M

Inventor： MINDE TOR BJORN ,  STEINARSON ARNE ,  UVLIDEN ANDERS

IPC: G10L19/12

Abstract: Un codificador de señales de análisis por síntesis predictivo lineal multicanal que incluye un libro de código fijo multiparte, incluyendo un libro de código fijo individual (FC1, FC2) para cada canal; un libro de código fijo compartido (FCS) que contiene los vectores de libro de código que son comunes a todos los canales; y medios (40) para analizar la correlación entre canales y cambiar dinámicamente, dependiendo de la correlación entre canales actual, la asignación de bits de codificación entre dicho dichos libros de códigos fijos individuales y dicho libro de código fijo compartido.

公开(公告)号：MY121083A

公开(公告)日：2005-12-30

申请号：MYPI9903724

申请日：1999-08-27

Applicant: ERICSSON TELEFON AB L M

Inventor： UVLIDEN ANDERS ,  SVEDBERG JONAS

IPC: G10L19/22 ,  H03M7/30 ,  H03M7/36

Abstract: 12. A MULTI-CODEBOOK FIXED BITRATE CELP SIGNAL BLOCK ENCODER/DECODER INCLUDES A CODEBOOK SELECTOR (22) FOR SELECTING, FOR EACH SIGNAL BLOCK, A CORRESPONDING CODEBOOK IDENTIFICATION IN ACCORDANCE WITH A DETERMINISTIC SELECTION PROCEDURE THAT IS INDEPENDENT OF SIGNAL TYPE. INCLUDED ARE ALSO MEANS FOR ENCODING/DECODING EACH SIGNAL BLOCK BY USING A CODEBOOK HAVING THE SELECTED CODEBOOK IDENTIFICATION.(FIG. 2)

公开(公告)号：AU763409B2

公开(公告)日：2003-07-24

申请号：AU1593800

申请日：1999-11-12

Applicant: ERICSSON TELEFON AB L M

Inventor： SVEDBERG JONAS ,  EKUDDEN ERIK ,  UVLIDEN ANDERS ,  JOHANSSON INGEMAR

IPC: G10L25/78 ,  G10L11/02 ,  G10L15/00 ,  G10L19/012 ,  G10L19/04 ,  G10L19/00

Abstract: Perceptually relevant non-speech information can be preserved during encoding of an audio signal by determining whether the audio signal includes such information. If so, a speech/noise classification of the audio signal is overriden to prevent misclassification of the audio signal as noise.