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1. 发明申请

WO2022117517A1 VISUAL REFERENCE FOR VIRTUAL REALITY (VR) LOCOMOTION 审中-公开
公开(公告)号：WO2022117517A1
公开(公告)日：2022-06-09
申请号：PCT/EP2021/083420
申请日：2021-11-29
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： FALK, Tommy , HARI HARAN, Alvin Jude
IPC分类号： G06F3/01 , G06F3/04815
摘要： A virtual reality (VR) rendering device (124). The VR rendering device is configured to detect an activation of a locomotion feature in the VR scene and, in response to detecting the activation of the locomotion feature in the VR scene, render a visual reference in the VR scene, wherein the visual reference moves with the user as the user moves within the VR scene.

2. 发明申请

WO2019166079A1 DECODING OF A MEDIA STREAM AT A PACKET RECEIVER 审中-公开
公开(公告)号：WO2019166079A1
公开(公告)日：2019-09-06
申请号：PCT/EP2018/054884
申请日：2018-02-28
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： FALK, Tommy , WESTERLUND, Magnus , SAMUELSON, Alfred
IPC分类号： H04L1/00 , H04L1/18 , H04L29/06 , H04N21/44
摘要： There is provided mechanisms for decoding a media stream. A method is performed by a packet receiver. The method comprises receiving packets. The packets have been transmitted by a packet transmitter. The packets define the media stream and each packet comprises encoded media. The method comprises decoding the encoded media into at least a first decoded version and a second decoded version. For the first decoded version only a subset of the packets decoded for the second decoded version are decoded. The subset includes only those of the packets that are received within a first threshold time delay from having been transmitted by the packet transmitter.

3. 发明申请

WO2018096036A1 METHOD AND APPARATUS FOR ADAPTIVE CONTROL OF DECORRELATION FILTERS 审中-公开
公开(公告)号：WO2018096036A1
公开(公告)日：2018-05-31
申请号：PCT/EP2017/080219
申请日：2017-11-23
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： JANSSON TOFTGÅRD, Tomas , FALK, Tommy
IPC分类号： H04S5/00 , G10L19/008 , G10L25/81
摘要： An audio signal processing method and apparatus for adaptively adjusting a decorrelator. The method comprises obtaining a control parameter and calculating mean and variation of the control parameter. Ratio of the variation and mean of the control parameter is calculated, and a decorrelation parameter is calculated based on the said ratio. The decorrelation parameter is then provided to a decorrelator.

4. 发明申请

WO2022194381A1 PREDICT AND TRIGGER A FUTURE RESPONSE TO A PREDICTED BACKGROUND NOISE BASED ON A SEQUENCE OF SOUNDS 审中-公开
公开(公告)号：WO2022194381A1
公开(公告)日：2022-09-22
申请号：PCT/EP2021/057015
申请日：2021-03-18
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： FALK, Tommy , ARNGREN, Tommy , ÖKVIST, Peter , KRISTENSSON, Andreas
IPC分类号： G10L25/51 , H03G3/20 , G10K11/16 , G10L25/30
摘要： A device performing operations including identifying occurrence of a trigger sound in the at least one microphone signal. Operations also include predicting probability of occurrence of a subsequent sound having a defined disturbance characteristic in the at least one microphone signal following the occurrence of the trigger sound. Operations further include triggering a remedial action to be performed to mute the at least one microphone signal or to suppress the subsequent sound in the at least one microphone signal when the probability of occurrence of the subsequent sound having the defined disturbance characteristic satisfies a remedial action rule.

5. 发明申请

WO2021180310A1 REPRESENTATION AND RENDERING OF AUDIO OBJECTS 审中-公开
公开(公告)号：WO2021180310A1
公开(公告)日：2021-09-16
申请号：PCT/EP2020/056349
申请日：2020-03-10
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： DE BRUIJN, Werner , JANSSON TOFTGÅRD, Tomas , FALK, Tommy
IPC分类号： G06F3/16
摘要： A method (900) for representing a cluster of audio objects (202). The method includes obtaining (s902) reference position information identifying a reference position within the cluster of audio objects; and using the obtained reference position information, transforming (s904) the cluster of audio objects into a composite spatial audio object. The transforming of the cluster of audio objects into the composite spatial audio object is performed independently of any listening position of any user.

6. 发明申请

WO2020144062A1 EFFICIENT SPATIALLY-HETEROGENEOUS AUDIO ELEMENTS FOR VIRTUAL REALITY 审中-公开
公开(公告)号：WO2020144062A1
公开(公告)日：2020-07-16
申请号：PCT/EP2019/086877
申请日：2019-12-20
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： FALK, Tommy , KARLSSON, Erlendur , ZHANG, Mengqiu , JANSSON TOFTGÅRD, Tomas , DE BRUIJN, Werner
IPC分类号： H04S7/00
摘要： In one aspect, there is a method for rendering a spatially-heterogeneous audio element. In some embodiments, the method includes obtaining two or more audio signals representing the spatially-heterogeneous audio element, wherein a combination of the audio signals provides a spatial image of the spatially-heterogeneous audio element. The method also includes obtaining metadata associated with the spatially-heterogeneous audio element, the metadata comprising spatial extent information indicating a spatial extent of the audio element. The method further includes rendering the audio element using: i) the spatial extent information and ii) location information indicating a position (e.g. virtual position) and/or an orientation of the user relative to the audio element.

7. 发明申请

WO2018024338A1 A METHOD AND ARRANGEMENT FOR REMOTE CONTROL OF AN ENVIRONMENT 审中-公开
标题翻译：一种环境遥控的方法和装置
公开(公告)号：WO2018024338A1
公开(公告)日：2018-02-08
申请号：PCT/EP2016/068703
申请日：2016-08-04
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： ARAÚJO, José , FALK, Tommy , ANDERSSON, Lars
IPC分类号： B25J9/16
CPC分类号： B25J9/1689 , B25J9/163 , G05B19/41845 , G05B19/4187 , G05B2219/40151
摘要： A method applicable in a slave system or a master system, when the master system is reacting on an environment via the slave system, connected to a master system, via a communication system. When a control message is determined and sent from the master system to the slave system, the control message is accompanied with a time stamp, indicative of the master model version of the environment which was applied when the control data was determined by the master system. When data, triggered by data provided from the environment to the slave system in the form of updated sensor data is provided from the slave system to the master system, also that data, indicative of an updated slave model version of the environment made by the slave system, is provided to the master system, together with a time stamp, indicative of when the update of the slave model version was made. By applying the suggested time stamp, a coordination of model versions can be obtained between the master system and the slave system.
摘要翻译：当主系统经由通信系统经由从系统在与主系统连接的环境中作出反应时，适用于从系统或主系统的方法。当确定并从主系统向从系统发送控制消息时，控制消息伴随有时间戳，指示当控制数据由主系统确定时应用的环境的主模型版本。当由从环境提供给从系统的数据以更新的传感器数据的形式提供的数据从从系统提供给主系统时，该数据还表示由从属装置产生的环境的更新的从模型版本系统连同时间戳一起提供给主系统，指示何时更新从模型版本。通过应用建议的时间戳，可以在主系统和从系统之间获得模型版本的协调。

8. 发明申请

WO2023061965A2 METHOD OF RENDERING AN AUDIO ELEMENT HAVING A SIZE, CORRESPONDING APPARATUS AND COMPUTER PROGRAM 审中-公开
公开(公告)号：WO2023061965A2
公开(公告)日：2023-04-20
申请号：PCT/EP2022/078163
申请日：2022-10-11
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： MORADI ASHOUR, Chamran , FALK, Tommy , DE BRUIJN, Werner
IPC分类号： H04S7/00
摘要： A method (1900) for rendering an audio element (102) is provided. The method comprises obtaining (s1902) size information indicating a size of a representation of the audio element and/or distance information indicating a distance between the audio element and a listener. The method also comprises, based on the size information and/or the distance information, determining (s1904) a number of virtual loudspeakers to use for rendering the audio element.

9. 发明申请

WO2022152403A1 METHOD AND SYSTEM FOR HANDLING A TELECONFERENCE 审中-公开
公开(公告)号：WO2022152403A1
公开(公告)日：2022-07-21
申请号：PCT/EP2021/050945
申请日：2021-01-18
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： ARNGREN, Tommy , FALK, Tommy , KRISTENSSON, Andreas , ÖKVIST, Peter
IPC分类号： H04L12/18
摘要： Disclosed is a method performed by a system (120) of a communication network (100) for handling a teleconference. The method comprises obtaining digital representations of speech detected from a plurality of communication devices (101, 102, 103, 104) connected to the teleconference, and receiving a request for a parallel discussion from a first (101) of the plurality of communication devices with a subgroup (102) of the plurality of communication devices. Further, based on the received request, the system (120) sets up a parallel discussion group for the first communication device (101) and the subgroup (102) of communication devices, provides the digital representations of speech of the first communication device (101) and the subgroup (102) of communication devices only to the devices (101, 102) of the parallel discussion group so that each device of the parallel discussion group is able to play back the digital representations of speech of the other devices of the parallel discussion group, and provides the digital representations of speech of the plurality of communication devices except the first communication device and the subgroup of communication devices, called remaining teleconference communication devices (103, 104), to the plurality of communication devices (101, 102, 103, 104) so that each device of the plurality of communication devices is able to play back the digital representations of speech of the other devices of the remaining teleconference communication devices.

10. 发明申请

WO2020144061A1 SPATIALLY-BOUNDED AUDIO ELEMENTS WITH INTERIOR AND EXTERIOR REPRESENTATIONS 审中-公开
公开(公告)号：WO2020144061A1
公开(公告)日：2020-07-16
申请号：PCT/EP2019/086876
申请日：2019-12-20
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： FALK, Tommy , KARLSSON, Erlendur , ZHANG, Mengqiu , JANSSON TOFTGÅRD, Tomas , DE BRUIJN, Werner
IPC分类号： H04S7/00
摘要： A method of audio rendering. The method includes receiving an audio element, wherein the audio element comprises: i) an interior representation that is valid within a spatial region, the interior representation of the audio element being in a listener-centric format and ii) information indicating the spatial region. The method further includes determining that a listener is outside the spatial region. The method further includes deriving an exterior representation of the audio element and rendering the audio element using the exterior representation of the audio element. In another aspect, a method of providing a spatially -bounded audio element is provided. The method includes providing, to a rendering node, an audio element. The audio element includes: (i) an interior representation that is valid within a spatial region, the interior representation being in a listener-centric format; and (ii) information indicating the spatial region.

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