公开(公告)号：US20190124374A1

公开(公告)日：2019-04-25

申请号：US16223536

申请日：2018-12-18

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Sung-bo OH

IPC分类号： H04N21/2347 ,  H04N21/4408 ,  H04L29/06 ,  H04N21/436 ,  H04N21/4367 ,  G09G5/00 ,  G06F21/10 ,  H04N21/4402

摘要： A source device for transmitting content to a sink device is provided. The source device may include an interface configured to perform high-bandwidth digital content protection (HDCP) authentication with the sink device, and a controller configured to determine an HDCP version supported by the sink device, convert the content so as to be encrypted in the HDCP version supported by the sink device in response to a determination that another HDCP version applied to the content is not supported by the sink device, encrypt the converted content in the HDCP version supported by the sink device, and control the interface to transmit the content to the sink device.

公开(公告)号：US10244272B2

公开(公告)日：2019-03-26

申请号：US15481340

申请日：2017-04-06

申请人： DIVX, LLC

发明人： Michael George Kiefer ,  Eric William Grab ,  Jason Braness

IPC分类号： H04L29/06 ,  H04N21/2347 ,  H04L9/08 ,  H04L9/32 ,  H04N21/647 ,  H04N21/254 ,  H04N21/4408 ,  H04N21/4627 ,  H04N21/6334 ,  H04L9/14

摘要： Systems and methods for performing adaptive bitrate streaming using alternative streams of protected content in accordance with embodiments of the invention are described. One embodiment of the invention includes a processor, and memory containing a client application. In addition, the client application configures the processor to: request a top level index file identifying a plurality of alternative streams of protected content, where each of the alternative streams of protected content are encrypted using common cryptographic information; obtain the common cryptographic information; request portions of content from at least the plurality of alternative streams of protected content; access the protected content using the common cryptographic information; and playback the content.

公开(公告)号：US20190012275A1

公开(公告)日：2019-01-10

申请号：US15994596

申请日：2018-05-31

申请人： Vanco International, LLC ,  Shenzhen Hollyland Technology Co., Ltd.

发明人： O. Bradley Corbin ,  Dezhi Liu

IPC分类号： G06F13/10 ,  G06F1/26 ,  H04N21/4408 ,  G06F13/40 ,  H04L29/06 ,  H04N1/44 ,  H04N21/4363 ,  H04N21/4402 ,  H04N21/4405 ,  G06F13/38 ,  H04L9/12 ,  H04N21/436

摘要： Disclosed are various embodiments of transmit and receive connectivity devices that include signal processing circuitry, an HDMI port, and a multi-position multi-contact port. The signal processing circuitry can transmit and receive signals over the multi-position multi-contact port. The signals can include a compressed video signal and a data signal. A power source can be sent over a cable attached to the multi-position multi-contact port.

公开(公告)号：US10178430B2

公开(公告)日：2019-01-08

申请号：US15537462

申请日：2015-12-09

申请人： Hangzhou Hikvision Digital Technology Co., Ltd.

发明人： Wei Wang ,  Qiqian Lin ,  Weichun Wang

IPC分类号： H04N7/173 ,  H04N21/44 ,  H04N5/225 ,  H04N5/232 ,  H04N21/4408 ,  G06K9/00 ,  H04N5/77 ,  H04N5/92 ,  H04N7/18 ,  H04N21/2187 ,  H04N21/234 ,  H04N21/235 ,  H04N21/236 ,  G06T7/292 ,  G08B13/196 ,  G08B21/24

摘要： The present application discloses an intelligent processing method and system for video data, wherein, in the method an intelligent camera set a warning rule, the method comprises: the intelligent camera collecting video data and analyzing the collected video data in real time, generating intelligent data if the warning rule is met, which intelligent data contain an encoder identifier and motion trajectory information; the intelligent camera packaging the video data and the intelligent data into a program stream and sending it to a frame analyzing component in a cloud storage system; the frame analyzing component unpacking the received program stream to obtain the video data and the intelligent data, and storing the video data and the intelligent data in storage components respectively; the storage components sending storage address information of the video data and the intelligent data to an index server for recording respectively. The solutions of the present application can perform intelligent processing for the collected video data in real time.

公开(公告)号：US10177912B2

公开(公告)日：2019-01-08

申请号：US14708095

申请日：2015-05-08

申请人： Sony Pictures Entertainment Inc. ,  Sony Corporation

发明人： Yoshikazu Takashima ,  Christopher Taylor

IPC分类号： H04L9/14 ,  H04N21/647 ,  H04N21/4408 ,  H04N21/8358 ,  H04N21/845

摘要： Content individualization, including: encrypting a first part of a source data set using a first key creating a first encrypted data set; encrypting a second part of the source data set using a second key creating a second encrypted data set; encrypting the second part of the source data set using a third key creating a third encrypted data set; and combining the first encrypted data set, the second encrypted data set, and the third encrypted data set to form a final encrypted data set. Key words include watermarking and content individualization.

公开(公告)号：US10142684B2

公开(公告)日：2018-11-27

申请号：US15464373

申请日：2017-03-21

申请人： Cisco Technology, Inc.

发明人： Paul Rutland ,  John Allen

IPC分类号： H04N21/44 ,  H04L9/32 ,  H04L29/06 ,  H04N21/262 ,  H04N21/4408 ,  H04L29/08 ,  H04N21/435 ,  H04N21/258 ,  H04L9/14 ,  H04L9/06 ,  H04L9/30

摘要： In one embodiment, a method, comprising obtaining a first uniform resource identifier for a segment of a content item, obtaining encryption metadata indicative of encryption information to be used for encrypting the segment when the segment is requested by a client device or a content delivery network, generating a data combination based on the first uniform resource identifier and the encryption metadata, generating an authentication code or a signature by applying a secret to the data combination, the secret being unknown to the client device or the content delivery network, generating a second uniform resource identifier for the segment based on the authentication code or the signature, the encryption metadata and the first uniform resource identifier, inserting the second uniform resource identifier in an adaptive bitrate media playlist for the content item, and sending the adaptive bitrate media playlist to the client device or the content delivery network.

公开(公告)号：US10142683B2

公开(公告)日：2018-11-27

申请号：US15326904

申请日：2015-07-10

申请人： Viaccess

发明人： Amine Dogui

IPC分类号： H04N21/4405 ,  H04L29/06 ,  H04N5/913 ,  H04N21/4408 ,  H04N21/433 ,  G06F21/10

摘要： A method for accessing protected multimedia includes receiving an encrypted fragment of the multimedia content and receiving a key for decrypting it, using the key to decrypt the fragment, thereby obtaining an unscrambled fragment, replacing original bits of the unscrambled fragment with different substituted bits to obtain a modified fragment, and reconstructing the modified fragment is reconstructed by replacing substituted bits of the extracted modified fragment with the original bits. The resulting reconstructed fragment is then decoded and the resulting decoded fragment is sent to a multimedia appliance to be enjoyed by a human viewer.

公开(公告)号：US10129591B2

公开(公告)日：2018-11-13

申请号：US15607006

申请日：2017-05-26

申请人： The Nielsen Company (US), LLC

发明人： Daniel Nelson ,  Venugopal Srinivasan ,  Arun Ramaswamy ,  Raghuram Ranganathan ,  Kenneth William McArthur

IPC分类号： H04N21/43 ,  H04N21/442 ,  H04N21/44 ,  H04N21/4408 ,  H04N21/258 ,  H04N21/234 ,  G06K9/00 ,  H04H60/31 ,  H04N21/8352 ,  H04H60/40 ,  H04H60/56

摘要： Methods, apparatus and articles of manufacture for signature retrieval and matching for media monitoring are disclosed. An example apparatus includes a hash table populator to store hash keys of reference signatures included in a reference signature block associated with reference media in entries of a hash table, and store qualifier data in the entry of the hash table, the qualifier data including a timestamp, an offset, and an identifier associated with the reference signature of the hash key. The apparatus further including a block table populator to store a block table key corresponding to the reference signature block in the entry of a block table, the block table key including the timestamp and the identifier, and store the reference signature block, a preceding reference signature block and a subsequent reference signature block in the first entry of the block table. The apparatus further including a signature matcher to access the hash table and the block table to retrieve candidate reference signatures to compare with site signatures to identify the monitored media.

公开(公告)号：US10075419B2

公开(公告)日：2018-09-11

申请号：US15076052

申请日：2016-03-21

申请人： NAGRAVISION S.A.

发明人： Jean-Bernard Fischer

IPC分类号： G06F21/00 ,  H04L29/06 ,  G06F21/10 ,  H04N21/4408 ,  H04N21/845 ,  H04L9/08 ,  H04N21/418 ,  H04N21/4367 ,  H04N21/4405 ,  H04N21/4623 ,  H04N21/658

CPC分类号： H04L63/0464 ,  G06F21/10 ,  G06F2221/0706 ,  G06F2221/0753 ,  G06F2221/0784 ,  H04L9/0819 ,  H04L9/0861 ,  H04N21/4181 ,  H04N21/4367 ,  H04N21/4405 ,  H04N21/4408 ,  H04N21/4623 ,  H04N21/6582 ,  H04N21/8456

摘要： A method to protect a media content encrypted by a media content key, said method being carried out by a security module embedded into a reception device and connected to a consumption device, comprising: receiving an encrypted media content, encrypted by a media content key; receiving a message, being encrypted by a personal key of the security module, containing the media content key; decrypting the message by the personal key to retrieve the media content key; decrypting the encrypted media content by the media content key; generating a current local key; encrypting a portion of the media content by the current local key, said portion defining a chunk; transmitting the current local key to the consumption device; transmitting the encrypted chunk to the consumption device; repeating the previous four steps for different chunks of the media content and modifying the current local key for the different chunks.

公开(公告)号：US10050945B2

公开(公告)日：2018-08-14

申请号：US15425880

申请日：2017-02-06

申请人： Time Warner Cable Enterprises LLC

发明人： Eric Hybertson

IPC分类号： H04L29/06 ,  H04N21/4408 ,  H04N21/4402 ,  H04L9/06

摘要： Methods and apparatus for ensuring protection of transferred content. In one embodiment, content is transferred while enabling a network operator (e.g., MSO) to control and change rights and restrictions at any time, and irrespective of subsequent transfers. This is accomplished in one implementation by providing a premises device configured to receive content in a first encryption format and encodes using a first codec, with an ability to transcrypt and/or transcode the content into an encryption format and encoding format compatible with a device which requests the content therefrom (e.g., from PowerKey/MPEG-2 content to DRM/MPEG-4 content). The premises device uses the same content key to encrypt the content as is used by the requesting device to decrypt the content.