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1. 发明公开

EP2761616A4 AN IMPROVED METHOD AND APPARATUS FOR ADAPTIVE MULTI RATE CODEC 审中-公开
标题翻译： FOR自适应多速率编解码器改进方法和设备
公开(公告)号：EP2761616A4
公开(公告)日：2015-06-24
申请号：EP11874379
申请日：2011-10-18
申请人： ERICSSON TELEFON AB L M
发明人： BRUHN STEFAN , KUANG JINGMING , WANG JING , ZHANG CHUNLING , ZHAO SHENGHUI
IPC分类号： G10L19/04
CPC分类号： G10L19/06 , G10L19/07 , G10L25/12

2. 发明公开

EP2502230A4 IMPROVED EXCITATION SIGNAL BANDWIDTH EXTENSION 有权
标题翻译：带宽扩展FOR改进激励信号
公开(公告)号：EP2502230A4
公开(公告)日：2013-05-15
申请号：EP10831865
申请日：2010-07-05
申请人： ERICSSON TELEFON AB L M
发明人： SVERRISSON SIGURDUR , BRUHN STEFAN , GRANCHAROV VOLODYA
IPC分类号： G10L21/02 , G10L19/04
CPC分类号： G10L19/12 , G10L21/038
摘要： An apparatus for generating a high band extension of a low band excitation signal (eLB) defined by parameters representing a CELP encoded audio signal includes the following elements: upsamplers (20) configured to upsample a low band fixed codebook vector (uFCB) and a low band adaptive codebook vector (uACB) to a predetermined sampling frequency. A frequency shift estimator (22) configured to determine a modulation frequency (&OHgr;) from an estimated measure representing a fundamental frequency (F0) of the audio signal. A modulator (24) configured to modulate the upsampled low band adaptive codebook vector (uACB↑) with the determined modulation frequency to form a frequency shifted adaptive codebook vector. A compression factor estimator (28) configured to estimate a compression factor. A compressor (34) configured to attenuate the frequency shifted adaptive codebook vector and the upsampled fixed codebook vector (uFCB↑) based on the estimated compression factor. A combiner (40) configured to form a high-pass filtered sum of the attenuated frequency shifted adaptive codebook vector and the attenuated up-sampled fixed codebook vector.

3. 发明公开

EP2572499A4 ENCODER ADAPTION IN TELECONFERENCING SYSTEM 有权
标题翻译： EINEM TEELFONKONFERENZSYSTEM中的KODIERERADAPTION
公开(公告)号：EP2572499A4
公开(公告)日：2014-01-29
申请号：EP10851858
申请日：2010-05-18
申请人： ERICSSON TELEFON AB L M
发明人： BRUHN STEFAN
IPC分类号： H04M3/56 , H04L12/18
CPC分类号： H04M3/569
摘要： The invention relates to a method and an arrangement for encoding of signals in teleconferencing. The method involves receiving (502) signals from a plurality of nodes participating in a teleconference and analyzing (504) said signals. The method further involves appointing (506) one of the received signals as being a dominant signal and adapting (508) an encoder based on information related to the dominant signal. At least two of the received signals are mixed and then encoded (512), using the adapted encoder. The encoded mixed signal is then provided (514) to at least one of the nodes participating in the teleconference.
摘要翻译：本发明涉及用于在电话会议中对信号进行编码的方法和装置。该方法涉及从参与电话会议的多个节点接收（502）信号并分析（504）所述信号。该方法还包括将接收到的信号中的一个指定为主导信号并且基于与主导信号有关的信息来适配（508）编码器。至少两个接收到的信号被混合，然后使用适配的编码器进行编码（512）。然后将编码的混合信号提供（514）到参与电话会议的至少一个节点。

4. 发明公开

EP2433278A4 METHOD AND ARRANGEMENT FOR PROVIDING A BACKWARDS COMPATIBLE PAYLOAD FORMAT 审中-公开
标题翻译： VERFAHREN UND ANORDNUNG ZUR BEREITSTELLUNG EINESABWÄRTSKOMPATIBLENNUTZDATENFORMATS
公开(公告)号：EP2433278A4
公开(公告)日：2013-10-30
申请号：EP10761937
申请日：2010-04-07
申请人： ERICSSON TELEFON AB L M
发明人： FRANKKILA TOMAS , BRUHN STEFAN , ENSTROEM DANIEL
IPC分类号： H04L29/06 , G10L19/16 , G10L19/24 , H04N21/6437
CPC分类号： G10L19/24 , G10L19/002 , G10L19/167 , H04L65/608 , H04L69/03 , H04N21/234327 , H04N21/2381 , H04N21/4381 , H04N21/6437 , H04N21/8106
摘要： In a method of providing a backward and forward compatible speech codec payload format, the following steps are included: providing S10 an RTP package; including S20 payload according to a first codec into the provided RTP package, and appending S50 payload according to a second codec into the provided RTP package. In addition, at least one unused bit is located S30 in the included first codec payload, and the located at least one unused bit is designated S40 as a codec compatibility bit. Finally, the designated at least one codec compatibility bit is utilized S60 to provide an indication of the presence of the appended second codec payload.
摘要翻译：在提供向后和向前兼容的语音编解码器有效载荷格式的方法中，执行提供RTP包的步骤。随后，将根据第一编解码器的有效载荷包括到所提供的RTP包中，并且根据第二编解码器将有效载荷附加到所提供的RTP包中。另外，在所包括的第一编解码器有效载荷中定位至少一个未使用的位，并将所述至少一个未使用的位指定为编解码器兼容性位。最后，利用指定的至少一个编解码器兼容性比特来提供所附加的第二编解码器有效载荷的存在的指示。

5. 发明公开

EP2132731A4 METHOD AND ARRANGEMENT FOR SMOOTHING OF STATIONARY BACKGROUND NOISE 有权
标题翻译：方法和系统EVENING平稳的背景噪音
公开(公告)号：EP2132731A4
公开(公告)日：2014-04-16
申请号：EP08712799
申请日：2008-02-13
申请人： ERICSSON TELEFON AB L M
发明人： BRUHN STEFAN
IPC分类号： G10L19/08 , G10L19/02 , G10L19/04 , G10L19/12 , G10L19/26 , G10L21/00
CPC分类号： G10L19/26

6. 发明公开

EP1964340A4 NETWORK PROCESSING NODE AND METHOD FOR MANIPULATING PACKETS 有权
标题翻译：网络节点处理和方法操纵包
公开(公告)号：EP1964340A4
公开(公告)日：2013-01-16
申请号：EP06824626
申请日：2006-12-07
申请人： ERICSSON TELEFON AB L M
发明人： TALEB ANISSE , JANSSON FREDRIK , HAAKANSSON STEFAN , JOHANSSON INGEMAR , BRUHN STEFAN , KIM MOO YOUNG
IPC分类号： H04L12/66 , H04L1/18
CPC分类号： H04L1/0041 , H04L1/0009 , H04L1/0026 , H04L1/18 , H04L49/552 , H04L2001/0097

7. 发明公开

EP2132733A4 NON-CAUSAL POSTFILTER 有权
标题翻译：不是因果后滤波器
公开(公告)号：EP2132733A4
公开(公告)日：2010-12-15
申请号：EP07852271
申请日：2007-12-14
申请人： ERICSSON TELEFON AB L M
发明人： BRUHN STEFAN
IPC分类号： G10L19/14 , G10L19/04 , G10L19/08 , G10L19/12 , G10L21/02
CPC分类号： G10L19/26

8. 发明公开

EP1797553A4 METHODS AND ARRANGEMENTS FOR ADAPTIVE THRESHOLDS IN CODEC SELECTION 有权
标题翻译： VERFAHREN UND ANORDNUNGENFÜRADAPTIVE SCHWELLEN BEI DER CODEC-AUSWAHL
公开(公告)号：EP1797553A4
公开(公告)日：2009-12-16
申请号：EP05784634
申请日：2005-09-21
申请人： ERICSSON TELEFON AB L M
发明人： HAAKANSSON STEFAN , BRUHN STEFAN , LUNDBERG TOMAS
IPC分类号： H04L1/00 , G10L19/22
CPC分类号： H04L1/0021 , G10L19/22 , H04L1/0014 , H04L1/0025 , H04L1/0026
摘要： A method and arrangement for dynamically adapting thresholds used for selecting a codec mode to be used is presented. Thresholds are adapted (240) in response to the current received signal quality. An estimate of actual prevailing received signal quality is obtained (230) on which the adaptation is based. The present invention can be applied either on the mobile terminal side or on the network side, working on the uplink and /or the downlink. The thresholds can be modified on the receiving side, or, when operating in the network and working on the downlink, the threshold adaptation can be initiated in the terminal.
摘要翻译：提出了用于动态适应用于选择要使用的编解码器模式的阈值的方法和装置。响应于当前接收的信号质量，适应（240）阈值。获得适应所基于的实际接收信号质量的估计（230）。本发明可以应用于移动终端侧或网络侧，在上行链路和/或下行链路上工作。可以在接收侧修改阈值，或者当在网络中工作并且在下行链路上工作时，可以在终端中启动阈值适配。

9. 发明公开

EP2399395A4 SYSTEMS AND METHOD FOR ENABLING FAST CHANNEL SWITCHING 审中-公开
标题翻译：系统和方法，快速频道切换开启时会
公开(公告)号：EP2399395A4
公开(公告)日：2016-11-30
申请号：EP09840500
申请日：2009-02-17
申请人： ERICSSON TELEFON AB L M
发明人： BRUHN STEFAN , SKILLERMARK PER , ALMGREN MAGNUS
IPC分类号： H04N7/173 , H04N21/2343 , H04N21/438
CPC分类号： H04N7/173 , H04N21/234327 , H04N21/4384

10. 发明公开

EP2593937A4 AUDIO ENCODER AND DECODER AND METHODS FOR ENCODING AND DECODING AN AUDIO SIGNAL 有权
标题翻译：音频编码器和解码器，以及用于编码方法和解码音频信号
公开(公告)号：EP2593937A4
公开(公告)日：2013-09-04
申请号：EP10854799
申请日：2010-07-16
申请人： ERICSSON TELEFON AB L M
发明人： NORVELL ERIK , BRUHN STEFAN , POBLOTH HARALD
IPC分类号： G10L19/038 , G10L19/00 , G10L19/06 , G10L19/12
CPC分类号： G10L19/13 , G10L19/038 , G10L19/06 , G10L19/12 , G10L2019/0002 , G10L2019/0005

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