Patents by Inventor Stefan Valentin
Stefan Valentin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11954134Abstract: A computer-implemented method can create a node-link model from a hierarchy table, which includes a plurality of records associated with a plurality of objects organized in segments. A record includes a unique identifier, a parent reference, and a value distribution for the associated object. The parent reference is the unique identifier of a parent object directing the value distribution to the associated object. The node-link model includes a plurality of nodes representing the objects and links connecting the nodes and representing value distributions between the objects. The method can generate a visual representation of the node-link model in a user interface and receive an input from the user interface. Responsive to the input, the method can change the visual representation to depict a portion of the node-link model based on a viewable scope of the node-link model and one or more viewable fields specified in the input.Type: GrantFiled: December 8, 2021Date of Patent: April 9, 2024Assignee: SAP SEInventors: Bjoern Christoph, Marco Valentin, Stefan Tex
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Patent number: 11202099Abstract: A system and method for improving quality of encoding and decoding a panoramic video. The panoramic video comprises a sequence of encoded picture frames. In panoramic video picture frames are mapped on a spherical viewing area. In the method the projection center of the encoded frame is transformed before encoding. In the decoding phase the projection center is transformed back accordingly after decoding the frame.Type: GrantFiled: January 3, 2020Date of Patent: December 14, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Maxim Borisovitch Sychev, Alexis Decurninge, Dimitrios Tsilimantos, Alexander Alexandrovich Karabutov, Stefan Valentin, Sergey Yurievich Ikonin
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Patent number: 11109022Abstract: The application relates to a method and a transmitter communication device configured to provide video data to a receiver communication device, wherein the video data comprises one or more groups of frames and each group of frames comprises a plurality of temporally successive frames. The method comprises processing a first frame of a current, i.e. currently processed group of frames using a first modulation and coding scheme of a plurality of modulation and coding schemes and processing a second frame of the current group of frames using a second modulation and coding scheme of the plurality of modulation and coding schemes, and further selecting the second modulation and coding scheme of the plurality of modulation and coding schemes on the basis of a temporal position of the second frame relative to the first frame of the current group of frames.Type: GrantFiled: December 9, 2019Date of Patent: August 31, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Dimitrios Tsilimantos, Zhijun Chao, Afef Feki, Amaya Nogales Gomez, Xianwen Shi, Haifeng Tang, Stefan Valentin
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Patent number: 10999204Abstract: Traffic profiling in real time within a video streaming session is described. Multiple data packet flows at a lower layer of the OSI model are observed. A data packet flow pattern is obtained for each observed flow, and each obtained pattern is compared to a pre-defined characteristic streaming pattern. From the observed flows, any data packet flow that has its data packet flow pattern close to the pre-defined characteristic streaming pattern is selected as a video streaming flow. A buffer state of the video streaming flow is identified amongst a filling state, a steady state, and a depletion state, by observing a slope of accumulated data over time. Eventually, multimedia-related information of the selected video streaming flow is provided based on its data packet flow pattern.Type: GrantFiled: November 19, 2019Date of Patent: May 4, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Dimitrios Tsilimantos, Stefan Valentin, Theodoros Karagkioules, Amaya Nogales Gomez, Xianwen Shi, Zhijun Chao
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Patent number: 10680705Abstract: The disclosure relates to a network entity for selecting a communication relay from a plurality of communication relays within the service area of a base station covering a plurality of geographic positions, wherein each communication relay is able to retransmit a communication between the base station and a user equipment, wherein the network entity comprises a divider configured to divide the service area into a plurality of different regions based on an attenuation measure at each geographic position, a determiner configured to determine for each pair of regions a spatial isolation measure based on the attenuation measures at the geographic positions within the regions, and a selector configured to select a communication relay based on the spatial isolation measures associated with the geographic position of each communication relay.Type: GrantFiled: May 22, 2018Date of Patent: June 9, 2020Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Afef Feki, Melissa Duarte Gelvez, Stefan Valentin, Luca Rose
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Publication number: 20200145695Abstract: A system and method for providing motion compensation in decoding of a panoramic video. The panoramic video comprises a sequence encoded of image frames. Using inter frame prediction an image frame of a video is expressed in terms of at least one of neighboring image frames. In panoramic video image frames are mapped on a spherical viewing area. In the method the motion caused by camera movements is compensated by computing a difference between a reference frame and a current frame. The computed difference is then used when reconstructing the current frame, which may be placed to an image buffer and used as a reference frame for other frames.Type: ApplicationFiled: January 3, 2020Publication date: May 7, 2020Inventors: Maxim Borisovitch SYCHEV, Alexis DECURNINGE, Dimitrios TSILIMANTOS, Alexander Alexandrovich KARABUTOV, Sergey Yurievich IKONIN, Stefan VALENTIN, Qingpeng XIE
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Publication number: 20200145694Abstract: A system and method for improving quality of encoding and decoding a panoramic video. The panoramic video comprises a sequence encoded of picture frames. In panoramic video picture frames are mapped on a spherical viewing area. In the method the projection center of the encoded frame is transformed before encoding. In the decoding phase the projection center is transformed back accordingly after decoding the frame.Type: ApplicationFiled: January 3, 2020Publication date: May 7, 2020Inventors: Maxim Borisovitch SYCHEV, Alexis DECURNINGE, Dimitrios TSILIMANTOS, Alexander Alexandrovich KARABUTOV, Stefan VALENTIN, Sergey Yurievich IKONIN
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Publication number: 20200112721Abstract: The application relates to a method and a transmitter communication device configured to provide video data to a receiver communication device, wherein the video data comprises one or more groups of frames and each group of frames comprises a plurality of temporally successive frames. The method comprises processing a first frame of a current, i.e. currently processed group of frames using a first modulation and coding scheme of a plurality of modulation and coding schemes and processing a second frame of the current group of frames using a second modulation and coding scheme of the plurality of modulation and coding schemes, and further selecting the second modulation and coding scheme of the plurality of modulation and coding schemes on the basis of a temporal position of the second frame relative to the first frame of the current group of frames.Type: ApplicationFiled: December 9, 2019Publication date: April 9, 2020Inventors: Dimitrios TSILIMANTOS, Zhijun CHAO, Afef FEKI, Amaya NOGALES GOMEZ, Xianwen SHI, Haifeng TANG, Stefan VALENTIN
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Publication number: 20200092213Abstract: The present invention relates to traffic profiling in real time within a video streaming session. First, multiple data packet flows at a lower layer of the OSI model are observed. A data packet flow pattern is obtained for each observed flow, and each obtained pattern is compared to a pre-defined characteristic streaming pattern. From the observed flows, any data packet flow that has its data packet flow pattern close to the pre-defined characteristic streaming pattern is selected as a video streaming flow. A buffer state of the video streaming flow is identified amongst a filling state, a steady state, and a depletion state, by observing a slope of accumulated data over time. Eventually, multimedia-related information of the selected video streaming flow is provided based on its data packet flow pattern.Type: ApplicationFiled: November 19, 2019Publication date: March 19, 2020Inventors: Dimitrios TSILIMANTOS, Stefan VALENTIN, Theodoros KARAGKIOULES, Amaya NOGALES GOMEZ, Xianwen SHI, Zhijun CHAO
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Publication number: 20180278325Abstract: The disclosure relates to a network entity for selecting a communication relay from a plurality of communication relays within the service area of a base station covering a plurality of geographic positions, wherein each communication relay is able to retransmit a communication between the base station and a user equipment, wherein the network entity comprises a divider configured to divide the service area into a plurality of different regions based on an attenuation measure at each geographic position, a determiner configured to determine for each pair of regions a spatial isolation measure based on the attenuation measures at the geographic positions within the regions, and a selector configured to select a communication relay based on the spatial isolation measures associated with the geographic position of each communication relay.Type: ApplicationFiled: May 22, 2018Publication date: September 27, 2018Inventors: Afef FEKI, Melissa Duarte GELVEZ, Stefan VALENTIN, Luca ROSE
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Patent number: 10069775Abstract: Certain embodiments of the present disclosure provide methods and systems for detecting unsolicited messages (i.e., spam) and preventing unsolicited messages from being sent. Certain embodiments provide analyzing dynamic information received as part of a request to generate a message. Parts or elements of the dynamic information such as sender, recipient and content are analyzed using filters and configurable constants to determine an abuse score indicative of the likelihood that the dynamic information may generate spam if included in an electronic message. A course of action may be followed dependent on the abuse score determined. For example, if the dynamic information is deemed not likely to generate spam, an electronic message from the information received is generated and sent. Certain embodiments allow implementation of the system and method in a distributed environment comprising of multiple systems or servers performing the same method.Type: GrantFiled: January 13, 2014Date of Patent: September 4, 2018Assignee: Adobe Systems IncorporatedInventors: Stefan-Valentin Guna, Monica-Adriana Dagadita
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Patent number: 9967300Abstract: Embodiments of the claimed subject matter provide a method and apparatus for scheduling adaptive bit rate streams. Some embodiments of the method include accessing, at user equipment, a first bit rate selected from a plurality of bit rates used to encode a portion of an adaptive multimedia stream, a size of the portion of the adaptive multimedia stream, and a play out duration of the portion of the adaptive multimedia stream. Some embodiments of the method also include providing, from the user equipment, indications of the first bit rate, the size, and the play out duration.Type: GrantFiled: December 10, 2012Date of Patent: May 8, 2018Assignee: Alcatel LucentInventors: Edward Grinshpun, David Faucher, Stefan Valentin
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Patent number: 9760600Abstract: Computer-implemented systems and methods are provided for indexing and serving calendar event information. In accordance with some embodiments, information common to, and unique among, instances of a recurrent event may be determined. A markup document and search document including the common information and unique information may be generated, and a search index may be updated. Also, in accordance with some embodiments, a search query may be received and parsed, and recurrent event information can be scored as a possible search result.Type: GrantFiled: January 14, 2014Date of Patent: September 12, 2017Assignee: Google Inc.Inventors: Tulika Agrawal, Magdalena Natalia Dukielska, Stefan Valentin Gheorghita
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Patent number: 9389301Abstract: Various embodiments provide a method and apparatus for determining tag location by using one or more estimated channel responses (CR) that characterize the wireless channel between the tag and one or more respective anchors. In particular, a tracking server in communication with the anchor(s) determines the tag's location based on a comparison of the estimated CR(s) with a set of stored CRs associated with the anchor(s).Type: GrantFiled: February 28, 2014Date of Patent: July 12, 2016Assignee: Alcatel LucentInventors: Howard Huang, Dragan Samardzija, Irwin Kennedy, Stefan Valentin, Dmitry Chizhik, Gregory Wright, Sarabjot Singh
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Patent number: 9271297Abstract: Embodiments relate to apparatuses, methods and computer programs for a mobile transceiver, a base station transceiver and a data server. A mobile transceiver apparatus comprises means for extracting context information from an application being run on a mobile transceiver, context information from an operation system being run on the mobile transceiver, or context information from hardware drivers or hardware of the mobile transceiver, the context information comprising information on a state of the application and/or information on a state of the mobile transceiver. The apparatus further comprises means for communicating data packets with the base station transceiver, wherein the data packets comprise payload data packets and control data packets, and wherein the means for communicating is operable to communicate payload data packets associated with the application with a data server through the base station transceiver.Type: GrantFiled: June 1, 2012Date of Patent: February 23, 2016Assignee: Alcatel LucentInventors: Stefan Valentin, Matthias Kaschub, Magnus Proebster, Thomas Werthmann, Christian Muller
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Publication number: 20160014799Abstract: The invention concerns a method for scheduling of radio resources to user terminals (UE11-UE24) of different network operators using a scheduling unit, wherein the scheduling unit determines weight parameters for the user terminals (UE11-UE24) of the different network operators for scheduling of the radio resources based on a predefined distribution of radio resources among the different network operators (si) and at least one data throughput per user terminal in a time interval (Tij), and the scheduling unit schedules the radio resources to the user terminals (UE11-UE24) of the different network operators based on said weight parameters, and a base station therefor.Type: ApplicationFiled: January 18, 2013Publication date: January 14, 2016Inventors: Osman Aydin, Stefan Valentin
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Patent number: 9231746Abstract: The present invention refers to a method and a transmitter element (35) for transmitting channel information (CI) for link adaptation of a radio channel (33) in a wireless network (11). In order to allow for reliable and efficient transfer of the channel information (CI) and to adapt the detection probability to the importance of the CI as well as to the channel stability, it is suggested that the method comprises encoding (19) the channel information (CI) using multi-level coding, said multi-level coding (19) comprising combining multiple bit sequences (c1, c2, . . . , cn, d), each bit sequence (c1, c2, . . . , cn, d) corresponding to a coding level (1, . . . , n) of said multilevel coding (19) and assigning (37) one of said coding levels (1, . . . , n) to at least a part (ci1, ci2) of the channel information (CI) such that at least a part (ci1, ci2) of the channel information (CI) corresponds to the bit sequence (c1, c2, . . . , cn) of that coding level (1, . . . , n).Type: GrantFiled: December 16, 2011Date of Patent: January 5, 2016Assignee: Alcatel LucentInventors: Stefan Valentin, Thorsten Wild, Andre F. D. Santos
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Publication number: 20150247915Abstract: Various embodiments provide a method and apparatus for determining tag location by using one or more estimated channel responses (CR) that characterize the wireless channel between the tag and one or more respective anchors. In particular, a tracking server in communication with the anchor(s) determines the tag's location based on a comparison of the estimated CR(s) with a set of stored CRs associated with the anchor(s).Type: ApplicationFiled: February 28, 2014Publication date: September 3, 2015Applicants: Alcatel-Lucent USA Inc., Alcatel LucentInventors: Howard Huang, Dragan Samardzija, Irwin Kennedy, Stefan Valentin, Dmitry Chizhik, Gregory Wright, Sarabjot Singh
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Publication number: 20150200890Abstract: Certain embodiments of the present disclosure provide methods and systems for detecting unsolicited messages (i.e., spam) and preventing unsolicited messages from being sent. Certain embodiments provide analyzing dynamic information received as part of a request to generate a message. Parts or elements of the dynamic information such as sender, recipient and content are analyzed using filters and configurable constants to determine an abuse score indicative of the likelihood that the dynamic information may generate spam if included in an electronic message. A course of action may be followed dependent on the abuse score determined. For example, if the dynamic information is deemed not likely to generate spam, an electronic message from the information received is generated and sent. Certain embodiments allow implementation of the system and method in a distributed environment comprising of multiple systems or servers performing the same method.Type: ApplicationFiled: January 13, 2014Publication date: July 16, 2015Applicant: Adobe Systems IncorporatedInventors: Stefan-Valentin Guna, Monica-Adriana Dagadita
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Publication number: 20150199402Abstract: Computer-implemented systems and methods are provided for indexing and serving calendar event information. In accordance with some embodiments, information common to, and unique among, instances of a recurrent event may be determined. A markup document and search document including the common information and unique information may be generated, and a search index may be updated. Also, in accordance with some embodiments, a search query may be received and parsed, and recurrent event information can be scored as a possible search result.Type: ApplicationFiled: January 14, 2014Publication date: July 16, 2015Inventors: Tulika Agrawal, Magdalena Natalia Dukielska, Stefan Valentin Gheorghita