专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2021122265A1 DEVICE AND METHOD FOR DEVICE LOCALIZATION 审中-公开
公开(公告)号：WO2021122265A1
公开(公告)日：2021-06-24
申请号：PCT/EP2020/085424
申请日：2020-12-10
申请人： INTERDIGITAL CE PATENT HOLDINGS
发明人： FRADET, Matthieu , ALLEAUME, Vincent , LAURENT, Anthony , ROBERT, Philippe
IPC分类号： G06F3/01 , G06T19/00 , G06F3/011 , G06K9/00744 , G06K9/00758 , G06T7/73
摘要： Localization of a user device in a mixed reality environment in which the user device obtains at least one keyframe from a server, which can reside on the user device, displays at least one of the keyframes on a screen, captures by a camera an image of the environment, and obtains a localization result based on at least one feature of at least one keyframe and the image.

2. 发明申请

WO2021052804A1 SECONDARY TRANSFORM FOR FAST VIDEO ENCODER 审中-公开
公开(公告)号：WO2021052804A1
公开(公告)日：2021-03-25
申请号：PCT/EP2020/074998
申请日：2020-09-08
申请人： INTERDIGITAL VC HOLDINGS FRANCE, SAS
发明人： NASER, Karam , POIRIER, Tangi , GALPIN, Franck , CHEN, Ya , DUMAS, Thierry
IPC分类号： H04N19/12 , H04N19/159 , H04N19/18 , H04N19/61
摘要： A method and apparatus comprise signaling and encoding low-frequency non-separable transform (LFNST) such that fast encoder method is supported as well as the traditional rate distortion (RD) search. This allows more flexibility to the encoder to adapt its coding search to its computational capacity. It is also proposed to limit the LNFST to using only the first kernel and uses CAB AC encoding.

3. 发明申请

WO2021001215A1 CHROMA FORMAT DEPENDENT QUANTIZATION MATRICES FOR VIDEO ENCODING AND DECODING 审中-公开
公开(公告)号：WO2021001215A1
公开(公告)日：2021-01-07
申请号：PCT/EP2020/067503
申请日：2020-06-23
申请人： INTERDIGITAL VC HOLDINGS FRANCE, SAS
发明人： DE LAGRANGE, Philippe , BORDES, Philippe , GALPIN, Franck , ROBERT, Antoine
IPC分类号： H04N19/124 , H04N19/16 , H04N19/186 , H04N19/463 , H04N19/70
摘要： In a video coding system, it is proposed to transmit only a luma quantization matrix and no chroma quantization matrix when the chroma format is monochrome, and otherwise (i.e. not monochrome) to transmit at least both a luma quantization matrix and a chroma quantization matrix. This allows to avoid the transmission of data elements that are useless. It allows to improve simultaneously the encoding (less operations to perform), the transmission (less data to be transmitted) and decoding (less operations to perform).

4. 发明申请

WO2020254264A1 METHOD AND DEVICE FOR PICTURE ENCODING AND DECODING USING POSITION DEPENDENT INTRA PREDICTION COMBINATION 审中-公开
公开(公告)号：WO2020254264A1
公开(公告)日：2020-12-24
申请号：PCT/EP2020/066522
申请日：2020-06-15
申请人： INTERDIGITAL VC HOLDINGS FRANCE, SAS
发明人： RATH, Gagan , URBAN, Fabrice , RACAPE, Fabien
IPC分类号： H04N19/11 , H04N19/117 , H04N19/176 , H04N19/593 , H04N19/70
摘要： A video coding system comprises a post-processing stage using position dependent intra prediction combination where a predicted sample is modified based on a weighting between a value of a left or top reference sample and the obtained predicted value for the sample, wherein the left or top reference sample is determined based on the intra prediction angle. This provides better computing efficiency while keeping identical compression performance. Encoding method, decoding method, encoding apparatus and decoding apparatus based on this post-processing stage are proposed.

5. 发明申请

WO2016083542A1 METHOD AND DEVICE FOR PROVIDING VERIFYING APPLICATION INTEGRITY 审中-公开
标题翻译：提供验证应用完整性的方法和设备
公开(公告)号：WO2016083542A1
公开(公告)日：2016-06-02
申请号：PCT/EP2015/077837
申请日：2015-11-26
申请人： THOMSON LICENSING
发明人： SALMON-LEGAGNEUR, Charles , KARROUMI, Mohamed
IPC分类号： G06F11/10 , G06F21/00
CPC分类号： G06F21/64 , G06F11/1004 , G06F21/51 , G06F21/645 , H04L9/3247 , H04L9/3268
摘要： During execution of modified code (S302), a device (110) generates (S304) a checksum for the modified code, and checks (S306) whether the generated checksum matches one of a plurality of stored possible checksums for the modified code (226), each possible checksum corresponding to a possible code obtained by modification of an original code that was modified to obtain the modified code. In case of a match, the device (110) verifies (S308) a signature on the plurality of stored possible checksums (226), and, if successfully verified, verifies (S310) the validity of a certificate for the signing key. The solution is particularly suitable for devices using the Android OS since the DEX during installation is optimized to an ODEX or OAT complied to ELF files for which there is no certified checksum.
摘要翻译：在执行修改后的代码（S302）期间，设备（110）生成修改后的代码的校验和（S304），并且检查（S306）所生成的校验和是否与修改代码（226）的多个存储的可能的校验和中的一个匹配，，每个可能的校验和对应于通过修改被修改以获得修改的代码的原始代码获得的可能代码。在匹配的情况下，设备（110）验证（S308）多个存储的可能校验和（226）上的签名，并且如果成功验证，则验证（S310）签名密钥的证书的有效性。该解决方案特别适用于使用Android操作系统的设备，因为在安装过程中，DEX针对没有认证校验和的ELF文件进行了优化。

6. 发明申请

WO2016005552A1 METHOD AND DEVICE FOR CRYPTOGRAPHIC KEY GENERATION 审中-公开
标题翻译：用于生成关键生成的方法和装置
公开(公告)号：WO2016005552A1
公开(公告)日：2016-01-14
申请号：PCT/EP2015/065807
申请日：2015-07-10
申请人： THOMSON LICENSING
发明人： JOYE, Marc , BEN HAMOUDA, Fabrice , LIBERT, Benoît
IPC分类号： H04L9/08 , H04L9/30
CPC分类号： H04L9/3033 , H04L9/0861 , H04L9/16 , H04L9/3006 , H04L2209/80
摘要： A method and a device (110) for generation of a cryptographic key pair for use in a (generalized) Goldwasser-Micali cryptosystem. The device (110) generates a first prime ρ ≡ 1 (mod 2 k ), (S10; S20) where k ≥ 1 is an integer, and a second prime q ≡ 3 (mod 4) (S11) or q ≡ 1 (mod 4) (S21); computes (S12; S22) a modulus N = ρq ; picks (S13; S23) an integer y formula (I), where formula (II) is a set of integers whose Jacobi symbol is 1 and formula (III) is a set of quadratic residues; and outputs (S14; S24) a public key ρk = { N, y, k } and a private key sk = { ρ , k }.
摘要翻译：一种用于生成用于（广义的）Goldwasser-Micali密码系统的密码密钥对的方法和设备（110）。装置（110）生成第一素数ρ≡1（mod2k），（S10; S20）其中k≥1是整数，第二素数q≡3（mod 4）（S11）或q≡1（ mod 4）（S21）; 计算（S12; S22）模数N =ρq; 选择（S13; S23）整数y公式（I），其中公式（II）是Jacobi符号为1并且公式（III）是一组二次残基的整数集合; 并输出（S14; S24）公开密钥ρk= {N，y，k}和私钥sk = {ρ，k}。

7. 发明申请

WO2021058401A1 PREDICTION FOR VIDEO ENCODING AND DECODING USING EXTERNAL REFERENCE 审中-公开
公开(公告)号：WO2021058401A1
公开(公告)日：2021-04-01
申请号：PCT/EP2020/076193
申请日：2020-09-18
申请人： INTERDIGITAL VC HOLDINGS FRANCE, SAS
发明人： BORDES, Philippe , DOYEN, Didier , GALPIN, Franck , KERDRANVAT, Michel
IPC分类号： H04N19/105 , H04N19/172 , H04N19/58 , H04N19/597 , H04N19/70
摘要： Various embodiments relate to a video coding system in which some elements required for decoding are generated according to a process that not specified within the video coding system. This process is hereafter referenced to as being the "external" process. This external process may generate "external" reference pictures to be used by a decoder that is adapted to use these external pictures. Encoding method, decoding method, encoding apparatus, decoding apparatus based on this post-processing method are proposed.

8. 发明申请

WO2021052792A1 CODING MODE INFORMATION PROPAGATION FOR VIDEO CODING 审中-公开
公开(公告)号：WO2021052792A1
公开(公告)日：2021-03-25
申请号：PCT/EP2020/074903
申请日：2020-09-07
申请人： INTERDIGITAL VC HOLDINGS FRANCE, SAS
发明人： DE LAGRANGE, Philippe , GALPIN, Franck , LELEANNEC, Fabrice , NASER, Karam
IPC分类号： H04N19/157 , H04N19/103 , H04N19/146 , H04N19/194 , H04N19/176
摘要： Coding mode information of a current block is propagated to neighbor blocks even when the coding mode is not selected for a current block. Such propagation may be limited, for example to one block only or to multiple generation of copies. Different propagation modes are proposed: left to right direction, top to bottom direction, bottom -right diagonal direction, first available information, or last coded information. The coding mode propagation allows to improve further predictions since a further block will benefit from the information from its neighbors.

9. 发明申请

WO2021009104A1 DEVICE AND METHOD FOR CONTROLLING OUTPUT LEVELS OF CONTENT 审中-公开
公开(公告)号：WO2021009104A1
公开(公告)日：2021-01-21
申请号：PCT/EP2020/069719
申请日：2020-07-13
申请人： INTERDIGITAL CE PATENT HOLDINGS, SAS
发明人： STAUDER, Jurgen , REINHARD, Erik , MORVAN, Patrick , BLONDE, Laurent
IPC分类号： H04N21/422 , H04N9/68 , H04N17/04 , H04N21/439 , H04N21/44 , H04N21/442 , G06K9/46 , G06N3/063
摘要： In a processing device (110) a content signal, a signal characteristic is measured (S202), an average is calculated (S204) for it and the difference between them is calculated (S206) to obtain an input to which a discomfort function is applied (S208) to determine a user discomfort signal that is used to modify (S210) the signal characteristic of the content signal, whereafter the modified content signal is output (S212). The processing device (110) can be content consumption device, but the general principles can also be applied during content preproduction.

10. 发明申请

WO2019043241A1 CONDITIONAL ROUTING DEVICE AND METHOD 审中-公开
公开(公告)号：WO2019043241A1
公开(公告)日：2019-03-07
申请号：PCT/EP2018/073688
申请日：2018-09-04
申请人： INTERDIGITAL CE PATENT HOLDINGS
发明人： ONNO, Stéphane , BERTOLINO, Matteo
IPC分类号： H04L29/06 , H04L12/28 , H04L12/725 , H04L12/715
摘要： A Forwarder (220) in a network (200), preferably based on Information-Centric Networking (ICN), receives (S310) a first request for data, the first request comprising an identifier of requested data and a condition from a Consumer device (210) or a second Forwarder device, sends (S335) a second request for the data to a Producer device (230) or a third Forwarder device in the network (200), the second request comprising at least the identifier of the data, receives (S340) received data corresponding to requested data from the Producer device (230) or the third Forwarder device, determines (S350) whether the received data satisfy the condition and sends (S355) the requested data to the Consumer device (210) or the second Forwarder device only in case the received data satisify the condition. The determining can be performed only in case the Forwarder device (220) received the first request from the Consumer device (210) or only in case the Forwarder device (220) sent the second request to the Producer device (230).

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