公开(公告)号：US10135707B2

公开(公告)日：2018-11-20

申请号：US15393437

申请日：2016-12-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho-sang Sung ,  Anton Porov ,  Konstantin Osipov ,  Eun-mi Oh ,  Cheol-hoon Baek ,  Nam-il Lee

IPC: H04L12/26 ,  H04L29/06 ,  H04J3/06 ,  H04L12/853 ,  H04L12/823 ,  H04L12/841

Abstract: An electronic apparatus and a playout delay adjustment method thereof are provided. The electronic apparatus includes a target playout delay estimator configured to estimate an initial target playout delay of a current frame by using network status information of a played packet and estimate a final target playout delay of the current frame by updating the estimated initial target playout delay based on real delay information of an unplayed packet, and an adaptation controller configured to determine an adaptation method for adjusting a playout delay of the current frame based on the final target playout delay.

公开(公告)号：US09589569B2

公开(公告)日：2017-03-07

申请号：US15142594

申请日：2016-04-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Anton Porov ,  Konstantin Osipov ,  Ki-hyun Choo

IPC: G10L19/00 ,  G10L19/02 ,  G10L19/008 ,  G10L19/002 ,  G10L19/032 ,  G10L19/16

CPC classification number: G10L19/0017 ,  G10L19/002 ,  G10L19/008 ,  G10L19/0204 ,  G10L19/032 ,  G10L19/167

Abstract: Provided is an audio encoding method. The audio encoding method includes: acquiring envelopes based on a predetermined sub-band for an audio spectrum; quantizing the envelopes based on the predetermined sub-band; and obtaining a difference value between quantized envelopes for adjacent sub-bands and lossless encoding a difference value of a current sub-band by using a difference value of a previous sub-band as a context. Accordingly, the number of bits required to encode envelope information of an audio spectrum may be reduced in a limited bit range, thereby increasing the number of bits required to encode an actual spectral component.

Abstract translation: 提供了一种音频编码方法。 音频编码方法包括：基于用于音频频谱的预定子带获取信封; 基于预定的子带量化信封; 并且通过使用前一子带的差值作为上下文，获得相邻子带的量化包络之间的差值，并对当前子带的差值进行无损编码。 因此，编码音频频谱的包络信息所需的比特数可以在有限的比特范围内减少，由此增加编码实际频谱分量所需的比特数。

公开(公告)号：US10902860B2

公开(公告)日：2021-01-26

申请号：US16859429

申请日：2020-04-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho-sang Sung ,  Konstantin Osipov ,  Yi Lu

IPC: G10L19/00 ,  G10L19/02 ,  G10L19/032 ,  G10L19/24 ,  G10L19/038 ,  G10L19/12 ,  G10L19/22 ,  G10L21/00 ,  G10L19/002 ,  G10L19/20

Abstract: The present invention relates to a method and an apparatus for encoding and decoding spectrum coefficients in the frequency domain. The spectrum encoding method may comprise the steps of: selecting an encoding type on the basis of bit allocation information of respective bands; performing zero encoding with respect to a zero band; and encoding information of selected significant frequency components with respect to respective non-zero bands. The spectrum encoding method enables encoding and decoding of spectrum coefficients which is adaptive to various bit-rates and various sub-band sizes. In addition, a spectrum can be encoded using a TCQ method at a fixed bit rate using a bit-rate control module in a codec that supports multiple rates. Encoding performance of the codec can be maximised by encoding high performance TCQ at a precise target bit rate.

公开(公告)号：USRE46082E1

公开(公告)日：2016-07-26

申请号：US13678413

申请日：2012-11-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Junghoe Kim ,  Eunmi Oh ,  Boris Kudryashov ,  Konstantin Osipov

IPC: G10L25/00 ,  G10L19/00 ,  G10L19/02 ,  G10L21/00 ,  G10L19/028

CPC classification number: G10L19/028 ,  G10L19/0017 ,  G10L19/02

Abstract: An apparatus and method of low bit rate encoding and reproducing. The method includes transforming input audio signals in a time domain into spectral signals in a frequency domain, extracting important-spectrum components from the spectral signals in the frequency domain, and quantizing the important-spectrum components, extracting residual-spectrum components other than the important-spectrum components from the spectral signals in the frequency domain, and calculating and quantizing a noise level of the residual-spectrum components, and encoding the quantized important-spectrum components and the quantized noise level losslessly, and outputting encoded bitstreams.

公开(公告)号：US10657976B2

公开(公告)日：2020-05-19

申请号：US16521104

申请日：2019-07-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho-sang Sung ,  Konstantin Osipov ,  Yi Lu

IPC: G10L19/00 ,  G10L19/02 ,  G10L19/032 ,  G10L19/24 ,  G10L19/038 ,  G10L19/12 ,  G10L19/22 ,  G10L21/00 ,  G10L19/002 ,  G10L19/20

Abstract: The present invention relates to a method and an apparatus for encoding and decoding spectrum coefficients in the frequency domain. The spectrum encoding method may comprise the steps of: selecting an encoding type on the basis of bit allocation information of respective bands; performing zero encoding with respect to a zero band; and encoding information of selected significant frequency components with respect to respective non-zero bands. The spectrum encoding method enables encoding and decoding of spectrum coefficients which is adaptive to various bit-rates and various sub-band sizes. In addition, a spectrum can be encoded using a TCQ method at a fixed bit rate using a bit-rate control module in a codec that supports multiple rates. Encoding performance of the codec can be maximised by encoding high performance TCQ at a precise target bit rate.

公开(公告)号：US10395663B2

公开(公告)日：2019-08-27

申请号：US15119558

申请日：2015-02-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho-sang Sung ,  Konstantin Osipov ,  Yi Lu

IPC: G10L19/00 ,  G10L19/02 ,  G10L19/24 ,  G10L19/038 ,  G10L19/12 ,  G10L19/22 ,  G10L19/032 ,  G10L21/00 ,  G10L19/002 ,  G10L19/20

Abstract: The present invention relates to a method and an apparatus for encoding and decoding spectrum coefficients in the frequency domain. The spectrum encoding method may comprise the steps of: selecting an encoding type on the basis of bit allocation information of respective bands; performing zero encoding with respect to a zero band; and encoding information of selected significant frequency components with respect to respective non-zero bands. The spectrum encoding method enables encoding and decoding of spectrum coefficients which is adaptive to various bit-rates and various sub-band sizes. In addition, a spectrum can be encoded using a TCQ method at a fixed bit rate using a bit-rate control module in a codec that supports multiple rates. Encoding performance of the codec can be maximised by encoding high performance TCQ at a precise target bit rate.

公开(公告)号：US09858934B2

公开(公告)日：2018-01-02

申请号：US15450672

申请日：2017-03-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Anton Porov ,  Konstantin Osipov ,  Ki-hyun Choo

IPC: G06F17/28 ,  G10L19/00 ,  G10L19/02 ,  G10L19/008 ,  G10L19/002 ,  G10L19/032 ,  G10L19/16

CPC classification number: G10L19/0017 ,  G10L19/002 ,  G10L19/008 ,  G10L19/0204 ,  G10L19/032 ,  G10L19/167

Abstract: Provided is an audio encoding method. The audio encoding method includes: acquiring envelopes based on a predetermined sub-band for an audio spectrum; quantizing the envelopes based on the predetermined sub-band; and obtaining a difference value between quantized envelopes for adjacent sub-bands and lossless encoding a difference value of a current sub-band by using a difference value of a previous sub-band as a context. Accordingly, the number of bits required to encode envelope information of an audio spectrum may be reduced in a limited bit range, thereby increasing the number of bits required to encode an actual spectral component.