专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

US20240340356A1 METHOD AND SYSTEM FOR PROVIDING MEDIA CONTENT TO A CLIENT 审中-公开
公开(公告)号：US20240340356A1
公开(公告)日：2024-10-10
申请号：US18592243
申请日：2024-02-29
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： Jason Michael CLOUD , Jeffrey RIEDMILLER , Kristofer KJOERLING , Janusz KLEJSA
IPC分类号： H04L67/565 , H04L65/60 , H04L65/75 , H04L67/568 , H04N21/2343 , H04N21/24 , H04N21/2662 , H04N21/845
CPC分类号： H04L67/565 , H04L65/60 , H04L65/75 , H04L67/568 , H04N21/23439 , H04N21/2402 , H04N21/2662 , H04N21/8456
摘要： A method for providing media content within a media distribution network. The method comprises transforming source media content into an interim format, thereby providing transformed content. Furthermore, the method comprises storing the transformed content on at least one core storage unit. In addition, the method comprises receiving a request for the source media content from a client. The method further comprises encoding the transformed content or intermediate coded content derived therefrom into encoded content suitable for transmission over a core network and/or an edge network, as well as sending the encoded content via the core network and/or the edge network to the client.

2. 发明申请

US20230047127A1 METHOD AND SYSTEM FOR PROVIDING MEDIA CONTENT TO A CLIENT 有权
公开(公告)号：US20230047127A1
公开(公告)日：2023-02-16
申请号：US17976705
申请日：2022-10-28
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： Jason Michael CLOUD , Jeffrey RIEDMILLER , Kristofer KJOERLING , Janusz KLEJSA
IPC分类号： H04L67/565 , H04N21/2343 , H04N21/24 , H04N21/2662 , H04N21/845 , H04L65/60 , H04L67/568 , H04L65/75
摘要： A method for providing media content within a media distribution network. The method comprises transforming source media content into an interim format, thereby providing transformed content. Furthermore, the method comprises storing the transformed content on at least one core storage unit. In addition, the method comprises receiving a request for the source media content from a client. The method further comprises encoding the transformed content or intermediate coded content derived therefrom into encoded content suitable for transmission over a core network and/or an edge network, as well as sending the encoded content via the core network and/or the edge network to the client.

3. 发明申请

US20200275171A1 METHOD AND SYSTEM FOR PROVIDING MEDIA CONTENT TO A CLIENT 审中-公开
公开(公告)号：US20200275171A1
公开(公告)日：2020-08-27
申请号：US16634568
申请日：2018-07-26
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： Jason Michael CLOUD , Jeffrey RIEDMILLER , Kristofer KJOERLING , Janusz KLEJSA
IPC分类号： H04N21/845 , H04N21/2343 , H04N21/24 , H04N21/2662
摘要： A method for providing media content within a media distribution network. The method comprises transforming source media content into an interim format, thereby providing transformed content. Furthermore, the method comprises storing the transformed content on at least one core storage unit. In addition, the method comprises receiving a request for the source media content from a client. The method further comprises encoding the transformed content or intermediate coded content derived therefrom into encoded content suitable for transmission over a core network and/or an edge network, as well as sending the encoded content via the core network and/or the edge network to the client.

4. 发明申请

US20180082695A1 ADAPTIVE ARITHMETIC CODING OF AUDIO CONTENT 审中-公开
公开(公告)号：US20180082695A1
公开(公告)日：2018-03-22
申请号：US15564125
申请日：2016-04-13
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： Xuejing SUN , Dong SHI , Janusz KLEJSA
IPC分类号： G10L19/00 , G10L19/20 , G10L19/02
CPC分类号： G10L19/0017 , G10L19/0204 , G10L19/20 , G10L25/18 , G10L25/21 , G10L25/51 , G10L25/78 , H03M7/4037 , H03M7/6011 , H03M7/6017
摘要： Disclosed is a system and computer program product of encoding audio content and corresponding method. The method includes determining a characteristic of the audio content, the characteristic of the audio content including at least one of a type or a property of the audio content. Also the method includes classifying the audio content based on the characteristic of the audio content and determining probabilities for multiple predefined audio coding symbols associated with the audio content by calculating a probability for each of the audio coding symbols based on the result of the classification, the probability for an audio coding symbol indicating a frequency at which the audio coding symbol occurs in the audio content. Further, the method encoded the audio content based on the audio coding symbols and the corresponding probabilities to obtain a code value, the code value representing a compression coding format of the audio content.

5. 发明申请

US20160155447A1 Bitstream Syntax for Spatial Voice Coding 有权
标题翻译：用于空间语音编码的位流语法
公开(公告)号：US20160155447A1
公开(公告)日：2016-06-02
申请号：US14392287
申请日：2014-06-26
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： Janusz KLEJSA , Leif Jonas SAMUELSSON , Heiko PURNHAGEN , Glenn N. DICKINS
IPC分类号： G10L19/008 , G10L19/02 , G10L19/002 , G10L19/035
CPC分类号： G10L19/008 , G10L19/002 , G10L19/0204 , G10L19/0212 , G10L19/032 , G10L19/035
摘要： An encoding system (100) encodes a first (E1) and further (E2, E3) audio signals as a layered bitstream (B), wherein a quantizer for each frequency band of each signal is selected using a rate allocation rule based on signal-specific rate allocation data, a spectral envelope of the signal and a reference level (EnvE1Max), which is determined based on the spectral envelope of the first signal and is not necessarily included in the bitstream. Further disclosed is a decoding system for reconstructing the audio signals based on the bitstream. In embodiments, the bitstream has a basic layer (BE1), which contains data that enable decoding of the first audio signal, and a spatial layer (Bspatial) facilitating decoding of the further audio signal(s). In embodiments, the encoding system prepares the bitstream subject to a basic-layer bitrate constraint and a total bitrate constraint.
摘要翻译：编码系统（100）将第一（E1）和另外（E2，E3）音频信号编码为分层比特流（B），其中使用基于信号的比特率的速率分配规则来选择每个信号的每个频带的量化器，特定速率分配数据，信号的频谱包络和基于第一信号的频谱包络确定的参考电平（EnvE1Max），并且不一定包括在比特流中。还公开了一种用于基于比特流重建音频信号的解码系统。在实施例中，比特流具有包含能够对第一音频信号进行解码的数据的基本层（BE1）以及便于对其它音频信号进行解码的空间层（B空间）。在实施例中，编码系统根据基本层比特率约束和总比特率约束准备比特流。

6. 发明公开

US20240013797A1 SIGNAL CODING USING A GENERATIVE MODEL AND LATENT DOMAIN QUANTIZATION 审中-公开
公开(公告)号：US20240013797A1
公开(公告)日：2024-01-11
申请号：US18247555
申请日：2021-10-11
申请人： DOLBY INTERNATIONAL AB
发明人： Janusz KLEJSA , Lars VILLEMOES , Per HEDELIN
IPC分类号： G10L19/16 , G10L19/002
CPC分类号： G10L19/167 , G10L19/002
摘要： The present disclosure provides a decoder configured to receive a finite bitrate stream that includes a quantized latent frame, where the quantized latent frame includes a quantized representation of a current frame of a signal in a latent domain different from a first domain; to generate a reconstructed latent frame from the quantized latent frame; to use a generative neural network model to perform a task for which the general neural network model has been trained, wherein the task includes to generate parameters for an invertible mapping from the latent domain to the first domain; to reconstruct a current frame of the signal in the first domain, which includes to map the reconstructed latent frame to the first domain by use of the invertible mapping, and to use the reconstructed current frame of the signal in the first domain to update a state of the generative neural network model.

7. 发明申请

US20170180905A1 EFFICIENT CODING OF AUDIO SCENES COMPRISING AUDIO OBJECTS 有权
公开(公告)号：US20170180905A1
公开(公告)日：2017-06-22
申请号：US15300159
申请日：2015-03-31
申请人： DOLBY INTERNATIONAL AB
发明人： Heiko PURNHAGEN , Janusz KLEJSA
IPC分类号： H04S7/00 , G10L19/008 , H04S3/00
CPC分类号： H04S7/302 , G10L19/008 , H04S3/008 , H04S2400/01 , H04S2400/03 , H04S2400/11
摘要： There is provided encoding and decoding methods for encoding and decoding of object based audio. An exemplary decoding method described is for reconstructing audio objects based on a data stream, wherein the data stream corresponds to a plurality of time frames, wherein the data stream comprises a plurality of side information instances, wherein the data stream further comprises, for each side information instance, transition data including two independently assignable portions which in combination define a point in time to begin a transition from a current reconstruction setting to a desired reconstruction setting specified by the side information instance, and a point in time to complete the transition.

8. 发明申请

US20160064007A1 AUDIO ENCODER AND DECODER 审中-公开
公开(公告)号：US20160064007A1
公开(公告)日：2016-03-03
申请号：US14781219
申请日：2014-04-04
申请人： DOLBY INTERNATIONAL AB
发明人： Lars VILLEMOES , Janusz KLEJSA , Per HEDELIN
IPC分类号： G10L19/032 , G10L19/06
CPC分类号： G10L19/032 , G10L19/02 , G10L19/06
摘要： The present document relates an audio encoding and decoding system (referred to as an audio codec system). In particular, the present document relates to a transform-based audio codec system which is particularly well suited for voice encoding/decoding. A transform-based speech encoder (100, 170) configured to encode a speech signal into a bitstream is described. The encoder (100, 170) comprises a framing unit (101) configured to receive a set (132, 332) of blocks; wherein the set (132, 332) of blocks comprises a plurality of sequential blocks (131) of transform coefficients; wherein the plurality of blocks (131) is indicative of samples of the speech signal; wherein a block (131) of transform coefficients comprises a plurality of transform coefficients for a corresponding plurality of frequency bins (301). Furthermore, the encoder (100, 170) comprises an envelope estimation unit (102) configured to determine a current envelope (133) based on the plurality of sequential blocks (131) of transform coefficients; wherein the current envelope (133) is indicative of a plurality of spectral energy values (303) for the corresponding plurality of frequency bins (301). In addition, the encoder (100, 170) comprises an envelope interpolation unit (104) configured to determine a plurality of interpolated envelopes (136) for the plurality of blocks (131) of transform coefficients, respectively, based on the current envelope (133); Furthermore, the encoder (100, 170) comprises a flattening unit (108) configured to determine a plurality of blocks (140) of flattened transform coefficients by flattening the corresponding plurality of blocks (131) of transform coefficients using the corresponding plurality of interpolated envelopes (136), respectively; wherein the bitstream is determined based on the plurality of blocks (140) of flattened transform coefficients.

9. 发明申请

US20180211677A1 ADVANCED QUANTIZER 审中-公开
公开(公告)号：US20180211677A1
公开(公告)日：2018-07-26
申请号：US15933108
申请日：2018-03-22
申请人： DOLBY INTERNATIONAL AB
发明人： Janusz KLEJSA , Lars VILLEMOES , Per HEDELIN
IPC分类号： G10L19/035 , G10L19/028 , G10L19/005 , G10L19/20
CPC分类号： G10L19/035 , G10L19/005 , G10L19/028 , G10L19/20
摘要： The present document relates an audio encoding and decoding system (referred to as an audio codec system). In particular, the present document relates to a transform-based audio codec system which is particularly well suited for voice encoding/decoding. A quantization unit configured to quantize a first coefficient of a block of coefficients is described. The block of coefficients comprises a plurality of coefficients for a plurality of corresponding frequency bins. The quantization unit is configured to provide a set of quantizers. The set of quantizers comprises a plurality of different quantizers associated with a plurality of different signal-to-noise ratios, referred to as SNR, respectively. The plurality of different quantizers includes a noise-filling quantizer; one or more dithered quantizers; and one or more un-dithered quantizers. The quantization unit is further configured to determine an SNR indication indicative of a SNR attributed to the first coefficient, and to select a first quantizer from the set of quantizers, based on the SNR indication. In addition, the quantization unit is configured to quantize the first coefficient using the first quantizer.

10. 发明申请

US20170339505A1 PARAMETRIC ENCODING AND DECODING OF MULTICHANNEL AUDIO SIGNALS 有权
公开(公告)号：US20170339505A1
公开(公告)日：2017-11-23
申请号：US15521157
申请日：2015-10-29
申请人： DOLBY INTERNATIONAL AB
发明人： Heiko PURNHAGEN , Heidi-Maria LEHTONEN , Janusz KLEJSA
IPC分类号： H04S3/00 , G10L19/008 , G10L19/22
CPC分类号： H04S3/008 , G10L19/008 , G10L19/22 , H04S7/00 , H04S2400/03 , H04S2420/03
摘要： A control section (1009) receives signaling (S) indicating one of at least two coding formats (F1, F2, F3) of an M-channel audio signal (L, LS, LB, TFL, TBL), the coding formats corresponding to different partitions of the channels of the audio signal into respective first and second groups (601, 602), wherein, in the indicated coding format, first and second channels (L1, L2) of a downmix signal correspond to linear combinations of the first and second groups, respectively; and a decoding section (900) reconstructs the audio signal based on the downmix signal and associated upmix parameters (αL). In the decoding section: a decorrelation input signal (D1, D2, D3) is determined based on the downmix signal and the indicated coding format; and wet and dry upmix coefficients, controlling linear mappings of the downmix signal and a decorrelated signal, generated based on the decorrelation input signal, are determined based on the upmix parameters and the indicated coding format.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式