公开(公告)号：US11153624B2

公开(公告)日：2021-10-19

申请号：US16603862

申请日：2018-04-06

Applicant: VIACCESS

Inventor： Vincent Hamon

IPC: H04N21/266 ,  H04N21/647 ,  G06F3/01 ,  H04N7/167 ,  H04N21/4405 ,  H04N21/254 ,  H04N21/835

Abstract: This method for reading a video stream comprises a step of comparing a datum characteristic of a behavior of a user with a set of predetermined thresholds, each of which, when it is crossed, characterizes an abnormal behavior of the user, a step of signaling an abnormal behavior if at least one predetermined part of these thresholds is crossed, and, otherwise, the absence of this signaling of an abnormal behavior, and a step of executing a counter-measure which makes it more difficult or impossible to access the set of information items contained in a first baseband video stream on the basis of various proofs of a second baseband video stream composed by a first terminal, this execution step being triggered automatically in response to the signaling of an abnormal behavior and not being triggered in the absence of this signaling of an abnormal behavior.

公开(公告)号：US10051310B2

公开(公告)日：2018-08-14

申请号：US14896715

申请日：2014-06-06

Applicant: VIACCESS

Inventor： Vincent Hamon

IPC: H04N21/426 ,  H04N21/258 ,  H04N21/222 ,  H04N21/266 ,  H04N21/6543 ,  H04N21/8358 ,  H04N21/2347 ,  H04N21/418 ,  H04N21/4405

Abstract: A terminal identification method which acquires then decodes multimedia temporal content to generate a multimedia stream in unscrambled form with at least one temporal succession of time intervals. A set of information bits for displaying an image or playing a sound being transmitted during a single time interval. The terminal identification device transmits an identification command to the terminal and the terminal triggers and alternately inhibits a predetermined modification of at least some of the information bits necessary for playing a sound or displaying an image contained in the multimedia stream to obtain a modified multimedia stream and transmits the stream as a multimedia. The device acquires the modified stream transmitted by the terminal and determines the identifier of the terminal to which it belongs on the basis of the transmitted command and the presence or absence of the predetermined modification in the acquired stream.

公开(公告)号：US11202111B2

公开(公告)日：2021-12-14

申请号：US16323051

申请日：2017-07-28

Applicant: VIACCESS

Inventor： Vincent Hamon

IPC: H04N13/344 ,  H04N21/2347 ,  H04N21/422 ,  H04N21/4728 ,  H04N13/383 ,  H04N21/2343 ,  H04N21/4405

Abstract: This method of reading a video stream comprises: the reception (92) of a video stream which comprises, associated with each tile of an image, a high-quality variant and a degraded variant, this degraded variant being able to be decompressed independently of the degraded variants associated with other tiles which do not have the same coordinates and independently of the high-quality variant associated with the same tile, for each selected tile, the decryption (118) and the decompression (120) of the high-quality variant associated with this selected tile and, for each unselected tile, the decompression (126) of the degraded variant associated with this unselected tile, and then the construction (130) of the degraded version of each portion of the image situated inside an unselected tile on the basis of the degraded variant associated with this unselected tile.

公开(公告)号：US11039223B2

公开(公告)日：2021-06-15

申请号：US16066192

申请日：2016-12-30

Applicant: VIACCESS

Inventor： Vincent Hamon

IPC: H04N21/8358 ,  H04N21/4627 ,  H04N21/81

Abstract: The invention relates to a method for processing multimedia streams, in particular to verify access rights to a content of said multimedia stream, the multimedia stream being provided by a server device connected to a communication network, and downloadable by a client device via data formatted in a markup language, by using software for browsing and displaying data formatted in a markup language, cooperating with software for reading multimedia streams, the multimedia stream comprising at least one video stream able to be displayed in the form of pixels in a display zone (42, 44, 46, 48) of a display screen of the client device. The method includes determining a display zone (42), allocated by said browsing and display software to the software for reading multimedia streams in order to display a video stream extracted from said multimedia stream, and recording at least one digital image formed by values of the pixels to be displayed in the display zone (42) determined at a given time.

公开(公告)号：US20190174160A1

公开(公告)日：2019-06-06

申请号：US16323051

申请日：2017-07-28

Applicant: VIACCESS

Inventor： Vincent Hamon

IPC: H04N21/2347 ,  H04N21/422 ,  H04N21/2343 ,  H04N13/344 ,  H04N13/383 ,  H04N21/4728

Abstract: This method of reading a video stream comprises: the reception (92) of a video stream which comprises, associated with each tile of an image, a high-quality variant and a degraded variant, this degraded variant being able to be decompressed independently of the degraded variants associated with other tiles which do not have the same coordinates and independently of the high-quality variant associated with the same tile, for each selected tile, the decryption (118) and the decompression (120) of the high-quality variant associated with this selected tile and, for each unselected tile, the decompression (126) of the degraded variant associated with this unselected tile, and then the construction (130) of the degraded version of each portion of the image situated inside an unselected tile on the basis of the degraded variant associated with this unselected tile.

公开(公告)号：US20160165296A1

公开(公告)日：2016-06-09

申请号：US14896715

申请日：2014-06-06

Applicant: VIACCESS

Inventor： Vincent Hamon

IPC: H04N21/426 ,  H04N21/8358 ,  H04N21/2347 ,  H04N21/418 ,  H04N21/6543 ,  H04N21/4405 ,  H04N21/258 ,  H04N21/266

CPC classification number: H04N21/42684 ,  H04N21/222 ,  H04N21/2347 ,  H04N21/25816 ,  H04N21/26606 ,  H04N21/4181 ,  H04N21/4405 ,  H04N21/6543 ,  H04N21/8358

Abstract: A terminal identification method which acquires then decodes multimedia temporal content to generate a multimedia stream in unscrambled form with at least one temporal succession of time intervals. A set of information bits for displaying an image or playing a sound being transmitted during a single time interval. The terminal identification device transmits an identification command to the terminal and the terminal triggers and alternately inhibits a predetermined modification of at least some of the information bits necessary for playing a sound or displaying an image contained in the multimedia stream to obtain a modified multimedia stream and transmits the stream as a multimedia. The device acquires the modified stream transmitted by the terminal and determines the identifier of the terminal to which it belongs on the basis of the transmitted command and the presence or absence of the predetermined modification in the acquired stream.

Abstract translation: 获取的终端识别方法随后以至少一个时间连续的时间间隔解码多媒体时间内容以以未加扰的形式生成多媒体流。 用于在单个时间间隔期间显示图像或播放正在发送的声音的一组信息位。 终端识别装置向终端发送识别命令，并且终端触发并交替地禁止播放声音所需的至少一些信息位或显示包含在多媒体流中的图像的预定修改以获得修改的多媒体流，并且 将流作为多媒体传输。 设备获取由终端发送的修改的流，并根据所发送的命令和所获取的流中是否存在预定的修改来确定其所属的终端的标识符。