专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明公开

EP4367565A1 USING A DRONE TO AUTOMATICALLY OBTAIN INFORMATION ABOUT A STRUCTURE 审中-实审
公开(公告)号：EP4367565A1
公开(公告)日：2024-05-15
申请号：EP21745921.3
申请日：2021-07-05
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： GRANCHAROV, Volodya , COMBES, Steven , SVERRISSON, Sigurdur
IPC分类号： G05D1/00 , G06T17/05 , G01C3/02 , G01S17/00
CPC分类号： G05D1/0094 , G01C3/02 , G01S7/4808 , G01S17/89 , G01S17/88

42. 发明公开

EP3724809A1 INDICATING OBJECTS WITHIN FRAMES OF A VIDEO SEGMENT 审中-公开
公开(公告)号：EP3724809A1
公开(公告)日：2020-10-21
申请号：EP17832939.7
申请日：2017-12-13
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： GRANCHAROV, Volodya , SVERRISSON, Sigurdur
IPC分类号： G06K9/00 , G06K9/62 , G06T7/73 , G06T7/246

43. 发明公开

EP3622506A1 ASR TRAINING AND ADAPTATION 有权
公开(公告)号：EP3622506A1
公开(公告)日：2020-03-18
申请号：EP17724951.3
申请日：2017-05-08
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： GRANCHAROV, Volodya , SVERRISSON, Sigurdur , KARLSSON, Erlendur , VULGARAKIS FELJAN, Aneta , VANDIKAS, Konstantinos , TESLENKO, Maxim
IPC分类号： G10L15/065 , G10L15/183 , G10L17/00

44. 发明公开

EP3518237A1 AUDIO CODING METHOD AND APPARATUS 有权
公开(公告)号：EP3518237A1
公开(公告)日：2019-07-31
申请号：EP19162514.4
申请日：2015-03-13
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： NORVELL, Erik , GRANCHAROV, Volodya
IPC分类号： G10L25/51 , G10L19/02
摘要： Coder and method therein for coding of an audio signal, where a frequency spectrum of the audio signal is divided into a first and a second region, where at least the second region comprises a number of bands. Further, spectral peaks in the first region are encoded by a first coding method. The method provided herein comprises: for a segment of the audio signal: determining a relation between an energy of a band in the second region and an energy estimate of the first region. The method further comprises determining a relation between the energy of the band in the second region and an average energy of the second region. The method further comprises determining whether an available number of bits is sufficient for encoding at least one non-peak segment of the first region and the band in the second region. Further, when the relations fulfill a respective predetermined criterion and the number of bits is sufficient, the band in the second region and the at least one segment of the first region are encoded using a second coding method.

45. 发明公开

EP3510787A1 PREDICTION METHOD AND DEVICE 审中-公开
公开(公告)号：EP3510787A1
公开(公告)日：2019-07-17
申请号：EP16766519.9
申请日：2016-09-09
申请人： Telefonaktiebolaget LM Ericsson (PUBL)
发明人： GRANCHAROV, Volodya , KARLSSON, Erlendur , KULYK, Valentin
IPC分类号： H04N21/81 , H04N21/2547 , H04N21/24 , H04N21/25 , H04H60/31 , H04H60/66 , H04H60/63

46. 发明公开

EP3423989A1 UNCERTAINTY MEASURE OF A MIXTURE-MODEL BASED PATTERN CLASSIFER 有权
公开(公告)号：EP3423989A1
公开(公告)日：2019-01-09
申请号：EP16707794.0
申请日：2016-03-03
申请人： Telefonaktiebolaget LM Ericsson (PUBL)
发明人： GRANCHAROV, Volodya , SVERRISSON, Sigurdur
IPC分类号： G06K9/00 , G06K9/62 , G10L15/08 , G10L15/14
摘要： There are provided mechanisms for determining an uncertainty measure of a mixture-model based parametric classifier. A method is performed by a classification device. The method includes obtaining a short-term frequency representation of a multimedia signal. The short-term frequency representation defines an input sequence. The method includes classifying the input sequence to belong to one class of at least two available classes using the parametric classifier. The parametric classifier has been trained with a training sequence. The method includes determining an uncertainty measure of the classified input sequence based on a relation between posterior probabilities of the input sequence and posterior probabilities of the training sequence.

47. 发明授权

EP3220390B1 TRANSFORM ENCODING/DECODING OF HARMONIC AUDIO SIGNALS 有权
公开(公告)号：EP3220390B1
公开(公告)日：2018-09-26
申请号：EP17164481.8
申请日：2012-10-30
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： GRANCHAROV, Volodya , NÄSLUND, Sebastian , JANSSON TOFTGÅRD, Tomas , POBLOTH, Harald
IPC分类号： G10L19/028 , G10L19/038
CPC分类号： G10L19/0212 , G10L19/002 , G10L19/028 , G10L19/038
摘要： An apparatus for encoding Modified Discrete Cosine Transform, MDCT, coefficients ( Y ( k )) of a harmonic audio signal comprising the following elements: Means for locating spectral peaks having magnitudes exceeding a predetermined threshold. Means for encoding peak regions including and surrounding the located peaks. Means for encoding, using a number of reserved bits, a first low-frequency set of coefficients outside the peak regions and below a crossover frequency that depends on the number of bits used to encode the peak regions, and to encode one or more further low-frequency set of coefficients outside the peak regions if there are non-reserved bits available after encoding the peak regions. Means for encoding, using a number of reserved bits, a noise-floor gain of at least one high-frequency set of not yet encoded coefficients outside the peak regions.

48. 发明公开

EP3067888A1 DECODER FOR ATTENUATION OF SIGNAL REGIONS RECONSTRUCTED WITH LOW ACCURACY 有权
标题翻译： DECODIERER ZURDÄMPFUNGVON MIT NIEDRIGER GENAUIGKEIT REKONSTRUIERTEN SIGNALBEREICHEN
公开(公告)号：EP3067888A1
公开(公告)日：2016-09-14
申请号：EP16167229.0
申请日：2011-12-15
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： NÄSLUND, Sebastian , NORVELL, Erik , GRANCHAROV, Volodya
IPC分类号： G10L19/02 , G10L19/035 , G10L21/02
CPC分类号： G10L19/02 , G10L19/0212 , G10L19/035 , G10L19/038 , G10L19/10
摘要： A decoder for determining an attenuation to be applied to an audio signal, comprising an identifier unit configured to identify spectral regions to be attenuated, a grouping unit configured to group subsequent identified spectral regions to form a continuous spectral region, a determination unit configured to determine a width of the continuous spectral region, and an application unit configured to apply an attenuation of the continuous spectral region adaptive to the width such that an increased width decreases the attenuation of the continuous spectral region.
摘要翻译：一种用于确定要施加到音频信号的衰减的解码器，包括被配置为识别要衰减的频谱区域的标识单元，被配置为对随后识别的频谱区域进行分组以形成连续频谱区域的分组单元，被配置为确定连续光谱区域的宽度，以及应用单元，被配置为施加适应于宽度的连续光谱区域的衰减，使得增加的宽度减小连续光谱区域的衰减。

49. 发明授权

EP2673771B1 EFFICIENT ENCODING/DECODING OF AUDIO SIGNALS 有权
标题翻译：高效的编码/解码音频信号
公开(公告)号：EP2673771B1
公开(公告)日：2016-06-01
申请号：EP11858302.0
申请日：2011-02-09
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： GRANCHAROV, Volodya , NORVELL, Erik , SVERRISSON, Sigurdur
IPC分类号： G10L19/02 , G10L21/0388 , G10L19/24
CPC分类号： G10L19/12 , G10L19/0204 , G10L19/0212 , G10L19/24 , G10L21/0388 , G10L2019/0008

50. 发明公开

EP2831757A1 VECTOR QUANTIZER 有权
标题翻译： VEKTORQUANTIFIZIERER
公开(公告)号：EP2831757A1
公开(公告)日：2015-02-04
申请号：EP12821073.9
申请日：2012-12-12
申请人： Telefonaktiebolaget LM Ericsson (PUBL)
发明人： GRANCHAROV, Volodya , JANSSON TOFTGÅRD, Tomas
IPC分类号： G06F17/10 , G06T9/00 , H03M7/30 , H04N7/28
CPC分类号： G10L19/038 , G10L19/18 , G10L2019/0013 , H03M7/3082 , H04N19/94
摘要： Vector Quantizer and method therein for efficient vector quantization, e.g. in a transform audio codec. The method comprises comparing an input target vector s with a plurality of centroids, each centroid representing a respective class of codevectors in a codebook. Further, a starting point for a search related to the input target vector in the codebook is determined, based on the result of the comparison. The codevectors in the codebook are sorted according to a distortion measure reflecting the distance between each codevector and the centroids of the classes. The Vector Quantizer and method enables that the class of codevectors comprising the most probable candidate codevectors in regard of the input vector. s may be searched first.
摘要翻译：矢量量化器及其中的方法，用于有效的矢量量化，例如在转换音频编解码器。该方法包括将输入目标矢量s与多个质心进行比较，每个质心代表码本中的相应类码矢量。此外，基于比较的结果，确定与码本中的输入目标矢量有关的搜索的起始点。码本中的代码矢量根据反映每个代码矢量与类的质心之间的距离的失真度量进行排序。矢量量化器和方法使得能够包括关于输入向量的最可能的候选码向量的码矢类。可以先搜索。

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