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81. 发明公开

EP3800885A1 IN LOOP SAMPLE PROCESSING FOR HIGH DYNAMIC RANGE AND WIDE COLOR GAMUT VIDEO CODING 审中-实审
公开(公告)号：EP3800885A1
公开(公告)日：2021-04-07
申请号：EP20210112.7
申请日：2017-05-16
申请人： QUALCOMM Incorporated
发明人： RUSANOVSKYY, Dmytro , BUGDAYCI SANSLI, Done , SOLE ROJALS, Joel , RAMASUBRAMONIAN, Adarsh Krishnan , KARCZEWICZ, Marta
IPC分类号： H04N19/126 , H04N19/136 , H04N19/176 , H04N19/18 , H04N19/98
摘要： A device for decoding video data receives the video data, determines a scaling parameter for a block of the video data, wherein the scaling parameter comprises a multiplier and an offset, by calculating an average intensity value of samples of one or more neighboring blocks of the block and retrieving a scaling parameter from a lookup table stored at the device, wherein the lookup table associates a plurality of average intensity values with a plurality of scaling parameters; and scales the block in a video decoding loop using the scaling parameter to increase a dynamic range for luminance values of the block. A device for encoding video data partitions the video data into blocks; determines a scaling parameter for a block of the video data; and scales the block in a video encoding loop using the scaling parameter to decrease a dynamic range for luminance values of the block.

82. 发明授权

EP2756674B1 MOTION VECTOR DETERMINATION FOR VIDEO CODING 有权
公开(公告)号：EP2756674B1
公开(公告)日：2019-05-15
申请号：EP12751234.1
申请日：2012-08-15
申请人： QUALCOMM INCORPORATED
发明人： WANG, Xianglin , ZHENG, Yunfei , SEREGIN, Vadim , KARCZEWICZ, Marta
IPC分类号： H04N19/436 , H04N19/52 , H04N19/105 , H04N19/176 , H04N19/174

83. 发明授权

EP2868081B1 SIGNALING LONG-TERM REFERENCE PICTURES FOR VIDEO CODING 有权转让
公开(公告)号：EP2868081B1
公开(公告)日：2019-04-17
申请号：EP13734279.6
申请日：2013-06-24
申请人： Qualcomm Incorporated
发明人： RAMASUBRAMONIAN, Adarsh Krishnan , WANG, Ye-Kui , JOSHI, Rajan Laxman , CHEN, Ying
IPC分类号： H04N19/58 , H04N19/463 , H04N19/70 , H04N19/573

84. 发明授权

EP2837177B1 VIEW SYNTHESIS MODE FOR THREE-DIMENSIONAL VIDEO CODING 有权
公开(公告)号：EP2837177B1
公开(公告)日：2018-08-08
申请号：EP13716683.1
申请日：2013-04-02
申请人： Qualcomm Incorporated
发明人： CHEN, Ying , ZHANG, Li , YU, Yang , VAN DER AUWERA, Geert , LI, Xiang , KARCZEWICZ, Marta
IPC分类号： H04N19/597 , H04N19/176 , H04N19/70 , H04N19/109
CPC分类号： H04N13/161 , H04N19/109 , H04N19/176 , H04N19/597 , H04N19/70
摘要： A video encoder signals, in a bitstream, a syntax element that indicates whether a current video unit is predicted from a VSP picture. The current video unit is a macroblock or a macroblock partition. The video encoder determines, based at least in part on whether the current video unit is predicted from the VSP picture, whether to signal, in the bitstream, motion information for the current video unit. A video decoder decodes the syntax element from the bitstream and determines, based at least in part on the syntax element, whether the bitstream includes the motion information.

85. 发明授权

EP2681896B1 METHOD AND APPARATUS FOR IDENTIFYING MOBILE DEVICES IN SIMILAR SOUND ENVIRONMENT 有权
公开(公告)号：EP2681896B1
公开(公告)日：2018-08-08
申请号：EP12707430.0
申请日：2012-02-16
申请人： Qualcomm Incorporated
发明人： KIM, Taesu , LEE, Te-Won
IPC分类号： H04L29/08 , H04W4/08 , H04W4/21 , H04W4/33
CPC分类号： H04L67/18 , H04W4/023 , H04W4/043 , H04W4/08 , H04W4/21
摘要： A method for identifying mobile devices in a similar sound environment is disclosed. Each of at least two mobile devices captures an input sound and extracts a sound signature from the input sound. Further, the mobile device extracts a sound feature from the input sound and determines a reliability value based on the sound feature. The reliability value may refer to a probability of a normal sound class given the sound feature. A server receives a packet including the sound signatures and reliability values from the mobile devices. A similarity value between sound signatures from a pair of the mobile devices is determined based on corresponding reliability values from the pair of mobile devices. Specifically, the sound signatures are weighted by the corresponding reliability values. The server identifies mobile devices in a similar sound environment based on the similarity values.

86. 发明授权

EP2893434B1 EXECUTING SUBROUTINES IN A MULTI-THREADED PROCESSING SYSTEM 有权
标题翻译：在多线程处理系统中执行子程序
公开(公告)号：EP2893434B1
公开(公告)日：2018-03-21
申请号：EP13751010.3
申请日：2013-08-08
申请人： Qualcomm Incorporated
发明人： CHEN, Lin
IPC分类号： G06F9/38
CPC分类号： G06F9/322 , G06F9/3851 , G06F9/3887
摘要： This disclosure is directed to techniques for executing subroutines in a single instruction, multiple data (SIMD) processing system that is subject to divergent thread conditions. In particular, a resume counter-based approach for managing divergent thread state is described that utilizes program module-specific minimum resume counters (MINRCs) for the efficient processing of control flow instructions. In some examples, the techniques of this disclosure may include using a main program MINRC to control the execution of a main program module and subroutine-specific MINRCs to control the execution of subroutine program modules. Techniques are also described for managing the main program MINRC and subroutine-specific MINRCs when subroutine call and return instructions are executed. Techniques are also described for updating a subroutine-specific MINRC to ensure that the updated MINRC value for the subroutine-specific MINRC is within the program space allocated for the subroutine.

87. 发明授权

EP2885916B1 INTER-VIEW PREDICTED MOTION VECTOR FOR 3D VIDEO 有权
标题翻译：用于3D视频的交互式预测运动矢量
公开(公告)号：EP2885916B1
公开(公告)日：2018-02-21
申请号：EP13753249.5
申请日：2013-08-16
申请人： Qualcomm Incorporated
发明人： CHEN, Ying , ZHANG, Li , KARCZEWICZ, Marta
IPC分类号： H04N19/597 , H04N19/503
CPC分类号： H04N13/10 , H04N19/52 , H04N19/597
摘要： A video coder determines a first picture order count (POC) value of a first reference picture associated with a first motion vector of a corresponding block that points in a first direction and determines whether a first reference picture list for the current block includes a reference picture having the first POC value; in response to the reference picture list not including the reference picture having the first POC value, determines a second POC value of a second reference picture associated with a second motion vector of the corresponding block that points in a second direction, determines whether the first reference picture list for the current block includes a reference picture having the second POC value and in response to the first reference picture list including the reference picture having the second POC value, decodes the current motion vector using the second motion vector of the corresponding block.

88. 发明授权

EP2904782B1 SUB-BITSTREAM APPLICABILITY TO NESTED SEI MESSAGES IN VIDEO CODING 有权
标题翻译：子比特流适用于视频编码中嵌套的SEI消息
公开(公告)号：EP2904782B1
公开(公告)日：2018-01-17
申请号：EP13770819.4
申请日：2013-09-20
申请人： Qualcomm Incorporated
发明人： WANG, Ye-Kui
IPC分类号： H04N19/70 , H04N19/46 , H04N19/30 , H04N19/463
CPC分类号： H04N19/46 , H04N19/30 , H04N19/463 , H04N19/70
摘要： A device decodes, from a scalable nesting supplemental enhancement information (SEI) message in an encoded video bitstream, a plurality of syntax elements that identify a plurality of operation points to which a nested SEI message encapsulated by the scalable nesting SEI message applies. Furthermore, the device uses one or more syntax elements of the nested SEI message to perform an operation regarding any of the operation points to which the nested SEI message applies.

89. 发明公开

EP3175584A1 REDUCING DELAY IN VIDEO TELEPHONY 有权
标题翻译：减少视频电话延迟
公开(公告)号：EP3175584A1
公开(公告)日：2017-06-07
申请号：EP15753528.7
申请日：2015-07-29
申请人： Qualcomm Incorporated
发明人： VAN DER AUWERA, Geert , COBAN, Muhammed Zeyd , KARCZEWICZ, Marta , LEUNG, Nikolai Konrad
IPC分类号： H04L12/26 , H04L12/853 , H04L12/825 , H04L12/841
CPC分类号： H04N7/147 , H04L43/0852 , H04L43/0864 , H04L43/0894 , H04L43/106 , H04L43/16 , H04L47/12 , H04L47/2416 , H04L47/263 , H04L47/283 , H04N7/148 , H04N7/15 , H04N7/152 , H04N19/40 , H04N19/61 , H04N21/2365 , H04N21/23655 , H04N21/2662 , H04N21/4347 , Y02D50/10
摘要： In an example, a method of processing data includes transmitting data over a network at a first bit rate, identifying a reduction in a network link rate of the network from a first network link rate to a second network link rate, and in response to identifying the reduction in the network link rate, determining a recovery bit rate at which to transmit the data over the network, where the recovery bit rate is less than the second network link rate. The method also includes determining a buffering duration based on a difference between a time of the identification of the reduction in the network link rate and an estimated actual time of the reduction in the network link rate, and determining a recovery rate duration during which to transmit the data at the recovery bit rate based on the recovery bit rate and the buffering duration.
摘要翻译：在一个示例中，处理数据的方法包括以第一比特率在网络上传输数据，识别网络的网络链路速率从第一网络链路速率到第二网络链路速率的降低，并且响应于识别降低网络链路速率，确定恢复比特率小于第二网络链路速率的网络上传输数据的恢复比特率。该方法还包括基于识别网络链路速率的降低的时间与网络链路速率的估计的实际时间的减少之间的差来确定缓冲持续时间，并且确定要在其间进行发送的恢复速率持续时间基于恢复比特率和缓冲持续时间的恢复比特率的数据。

90. 发明授权

EP2954525B1 SYSTEMS AND METHODS OF PERFORMING NOISE MODULATION AND GAIN ADJUSTMENT 有权
标题翻译： VERFAHREN ZURDURCHFÜHRUNGEINERSTÖRGERÄUSCHMODULATIONUNDVERSTÄRKUNGSEINSTELLUNG
公开(公告)号：EP2954525B1
公开(公告)日：2017-02-08
申请号：EP13766166.6
申请日：2013-08-29
申请人： Qualcomm Incorporated
发明人： ATTI, Venkatraman Srinivasa , KRISHNAN, Venkatesh
IPC分类号： G10L21/038
CPC分类号： G10L19/167 , G10L19/032 , G10L19/035 , G10L19/06 , G10L21/038 , G10L2019/0003 , H03G3/301 , H03G3/3089
摘要： A method includes receiving a first value of a mixing factor. The first value corresponds to a first portion of an audio signal received at an audio encoder. The method includes receiving a second value of the mixing factor. The second value corresponds to a second portion of the audio signal. The method also includes generating a third value of the mixing factor at least partially based on the first value and the second value and mixing an excitation signal with modulated noise based on the third value. Another method includes determining a first set of spectral frequency values corresponding to an audio signal and determining a second set of spectral frequency values that approximates the first set of spectral frequency values. A gain value corresponding to at least a portion of the audio signal is adjusted based on a difference between the first set and the second set.
摘要翻译：一种方法包括接收混合因子的第一值。第一值对应于在音频编码器处接收的音频信号的第一部分。该方法包括接收混合因子的第二值。第二值对应于音频信号的第二部分。该方法还包括至少部分地基于第一值和第二值产生混合因子的第三值，并且基于第三值将激励信号与调制噪声混合。另一种方法包括确定对应于音频信号的第一组频谱频率值，并确定近似第一组频谱频率值的第二组频谱频率值。基于第一组和第二组之间的差来调整对应于音频信号的至少一部分的增益值。

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