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13 条记录 (耗时 0.023 秒)

    Reception of audio-visual content addressed to several devices
    1.
    发明授权
    Reception of audio-visual content addressed to several devices 有权
    接收到多个设备的视听内容

    公开(公告)号：US08601132B2

    公开(公告)日：2013-12-03

    申请号：US12084537

    申请日：2006-10-26

    申请人： Philippe Letellier ,  Pierre Houeix ,  Jean-Francois Fleury

    发明人： Philippe Letellier ,  Pierre Houeix ,  Jean-Francois Fleury

    IPC分类号： G06F15/16 ,  H04N7/173 ,  H04N5/50

    CPC分类号： H04L12/1886

    摘要： The present invention relates to a method for receiving audiovisual programs sent by a server to at least two reception devices. Initially, a first user requests a document from the server that establishes a unicast stream to download said document. Then, a second user requests to receive the same document, even truncated by a part. The server studies the proposal and possibly, for a lower price, agrees to the download. The server then switches the broadcast of the document from a unicast stream to a multicast stream, the first and second devices receiving said document via the same multicast stream.The invention also relates to a device for receiving audiovisual content and a server for implementing the method.

    摘要翻译： 本发明涉及一种用于接收由服务器发送到至少两个接收设备的视听节目的方法。 最初，第一用户从建立单播流的服务器请求文档以下载所述文档。 然后，第二个用户请求接收相同的文档，甚至被零件截断。 服务器研究该建议，可能以较低的价格同意下载。 然后，服务器将文档的广播从单播流切换到多播流，第一和第二设备经由相同的多播流来接收所述文档。 本发明还涉及用于接收视听内容的设备和用于实现该方法的服务器。

    Reception of Audio-Visual Content Addressed to Several Devices
    2.
    发明申请
    Reception of Audio-Visual Content Addressed to Several Devices 有权
    视听内容接收到几个设备

    公开(公告)号：US20090300185A1

    公开(公告)日：2009-12-03

    申请号：US12084537

    申请日：2006-10-26

    申请人： Philippe Letellier ,  Pierre Houeix ,  Jean-Francois Fleury

    发明人： Philippe Letellier ,  Pierre Houeix ,  Jean-Francois Fleury

    IPC分类号： G06F15/16

    CPC分类号： H04L12/1886

    摘要： The present invention relates to a method for receiving audiovisual programs sent by a server to at least two reception devices. Initially, a first user requests a document from the server that establishes a unicast stream to download said document. Then, a second user requests to receive the same document, even truncated by a part. The server studies the proposal and possibly, for a lower price, agrees to the download. The server then switches the broadcast of the document from a unicast stream to a multicast stream, the first and second devices receiving said document via the same multicast stream.The invention also relates to a device for receiving audiovisual content and a server for implementing the method.

    摘要翻译： 本发明涉及一种用于接收由服务器发送到至少两个接收设备的视听节目的方法。 最初，第一用户从建立单播流的服务器请求文档以下载所述文档。 然后，第二个用户请求接收相同的文档，甚至被零件截断。 服务器研究该建议，可能以较低的价格同意下载。 然后，服务器将文档的广播从单播流切换到多播流，第一和第二设备经由相同的多播流来接收所述文档。 本发明还涉及用于接收视听内容的设备和用于实现该方法的服务器。

    Method and apparatus for visual telecommunications, in particular for use by the deaf
    8.
    发明授权
    Method and apparatus for visual telecommunications, in particular for use by the deaf 失效
    用于视觉通信的方法和装置，特别是由聋人使用

    公开(公告)号：US4546383A

    公开(公告)日：1985-10-08

    申请号：US505309

    申请日：1983-06-17

    申请人： Jean-Francois Abramatic ,  Morton Nadler ,  Philippe Letellier

    发明人： Jean-Francois Abramatic ,  Morton Nadler ,  Philippe Letellier

    IPC分类号： G09B21/00 ,  G09B21/06 ,  H04N7/14

    CPC分类号： G09B21/009 ,  G09B21/06

    摘要： In a system for visual telecommunications, e.g. for use by deaf people, an electronic camera (20) makes an image of a moving subject for transmission. The TV type image is passed through a contour extractor (25) to be converted to an animated cartoon line-drawing type image. The contour image is then compressed by means including a sampler (28) for image reduction, a difference detector (30) for selecting only points which change from one image to the next, a filter (34) for rejecting isolated points in the contour image, and an encoder (36) for converting sequences of on/off bits into data words for transmission, via a modem (14) over a telephone line (15). At the other end of the line a similar transmitter/receiver system decodes the received words and reconstitutes the successive images for display on a screen (46). The resulting animated cartoon type of display is adequate for communication by sign language or by lip reading, and is capable of being sufficiently compressed to be transmitted over a normal telephone line.

    摘要翻译： 在用于视觉通信的系统中，例如， 为了聋人使用，电子照相机（20）使得移动的被摄体的图像被传送。 电视类型图像通过轮廓提取器（25），以转换为动画卡通图形类型图像。 然后通过包括用于图像缩小的采样器（28），用于仅选择从一个图像变化到下一个图像的点的差分检测器（30），用于拒绝轮廓图像中的孤立点的滤波器（34） ，以及用于经由调制解调器（14）经由电话线（15）将开/关位序​​列转换为数据字以进行传输的编码器（36）。 在线路的另一端，类似的发射机/接收机系统对所接收的话音进行解码，并重新构成连续的图像以在屏幕（46）上显示。 所得到的动画卡通类型的显示器对于通过手语或唇读取的通信是足够的，并且能够被充分压缩以通过普通电话线传输。

    Method and apparatus for enlarging DVB-CI functionality by enabling a direct access to the conditional access module
    10.
    发明授权
    Method and apparatus for enlarging DVB-CI functionality by enabling a direct access to the conditional access module 有权
    通过实现对条件访问模块的直接访问来扩大DVB-CI功能的方法和装置

    公开(公告)号：US06543050B1

    公开(公告)日：2003-04-01

    申请号：US09329570

    申请日：1999-06-10

    申请人： Philippe Letellier ,  Eric Diehl ,  Stéphane Morcel

    发明人： Philippe Letellier ,  Eric Diehl ,  Stéphane Morcel

    IPC分类号： H04N7167

    CPC分类号： H04N21/43607 ,  H04N21/4431

    摘要： The invention is to be used in the Digital Video Broadcasting—Common Interface environment for accessing the Conditional Access Module (CAM). The host application handles objects of the Conditional Access (CA) through a private Application Program Interface (API). Each CAM may have its own private CA API but the data channel remains identical whatever the CAM is. This new mode coexists with the two already defined modes: low level Man Machine Interface, and high level Man Machine Interface. If a Set top Unit “understands” the private CA Application Program Interface (API), then it may access the features of the plugged CA through its private CA API Protocol. Otherwise, it remains on the standard API. With this extension, an STU can have a Conditional Access User Interface which perfectly fits into the overall User Interface of the STU. Thus b broadcaster can ensure that its look and feel are respected on its STUs. A manufacturer can build an STU especially optimized for a given or a plurality of Cas but still able to run other CAs.

    摘要翻译： 本发明将用于数字视频广播 - 公共接口环境中，用于访问条件访问模块（CAM）。 主机应用程序通过专用应用程序接口（API）处理条件访问（CA）的对象。 每个CAM可以具有其自己的专用CA API，但是无论CAM是什么，数据信道保持相同。 这种新模式与两种已经定义的模式共存：低级人机界面和高级人机界面。 如果机顶单元“理解”专用CA应用程序接口（API），则可以通过其专用CA API协议访问已插入CA的功能。 否则，它仍然在标准API上。 通过这种扩展，STU可以具有完全适合STU的整体用户界面的条件访问用户界面。 因此，广播公司可以确保其外观和感觉在其STU上得到尊重。 制造商可以构建特定针对给定CA或多个CA进行优化的STU，但仍能够运行其他CA。