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公开(公告)号：US5990972A
公开(公告)日：1999-11-23
申请号：US734613
申请日：1996-10-22
IPC分类号： H04N5/44 , H04N5/445 , H04N7/173 , H04N21/235 , H04N21/435 , H04N21/81
CPC分类号： H04N21/8166 , H04N21/235 , H04N21/42204 , H04N21/4312 , H04N21/435 , H04N21/443 , H04N5/44543 , H04N7/17318 , H04N5/4401
摘要： An interactive video menu system provides an economical method for the storage, transmission, and reception of data necessary for interactive video sessions, which allows high-resolution images to be broadcast to end users along with all the control information necessary to display and navigate through these images. A simple interpretive script is run on the end user's device which traps the broadcast information and allows rapid response time and control of the interactive session without requiring expensive high-bandwidth facilities. Buffer equalized coding is used so that still, picture-in-a-still; and moving video images can be compressed at rates below those typically used with the MPEG-2 standard and continuously transmitted as video backgrounds in a seamless loop saving bandwidth without degradation in video quality. Data that instructs the end-user device how to display the video backgrounds and what foreground text to overlay on the video backgrounds is broadcast simultaneously in the bit stream This creates the appearance of a dedicated connection to the server while minimizing bandwidth and equipment cost and complexity.
摘要翻译： 交互式视频菜单系统提供了用于存储，传输和接收交互式视频会话所必需的数据的经济方法，其允许将高分辨率图像广播到终端用户以及显示和浏览这些信息所需的所有控制信息 图片。 在最终用户的设备上运行一个简单的解释脚本来捕获广播信息，并允许交互式会话的快速响应时间和控制，而不需要昂贵的高带宽设施。 使用缓冲区均衡编码，使得仍然是静止图像; 并且可以以低于通常与MPEG-2标准一起使用的速率压缩移动视频图像，并且以无缝环路节省带宽中的视频背景连续发送，而不会降低视频质量。 指示最终用户设备如何显示视频背景的数据以及在视频背景上重叠的前景文本在位流中同时广播。这样可以使服务器的专用连接出现，同时最大限度地减少带宽和设备成本和复杂性 。
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公开(公告)号：US6005943A
公开(公告)日：1999-12-21
申请号：US739371
申请日：1996-10-29
申请人： Joshua L. Cohen , Cecil A. Dean , Thomas L. du Breuil , Daniel Nelson Heer , David P. Maher , Vance Eugene Poteat , Robert John Rance
发明人： Joshua L. Cohen , Cecil A. Dean , Thomas L. du Breuil , Daniel Nelson Heer , David P. Maher , Vance Eugene Poteat , Robert John Rance
CPC分类号： H04L9/0877
摘要： The generation of electronic identifiers for network interface units connected to a data network for use in detecting unauthorized decryption of encrypted data transmitted over the data network. A random number is generated for use as a private key decryption code and is stored in memory in each network interface unit. A public key is calculated from the stored private key using a non-invertible mathematical formula. If the calculated public key is unique, then a portion of the public key (e.g. a subset of its bits) is stored in a data provider database as an electronic identifier for use in detecting unauthorized decryption of data by the interface unit.
摘要翻译： 生成连接到数据网络的网络接口单元的电子标识符，以用于检测通过数据网络发送的加密数据的未经授权的解密。 生成随机数用作私钥解密码，并存储在每个网络接口单元的存储器中。 使用非可逆数学公式从存储的私钥计算公钥。 如果所计算的公开密钥是唯一的，那么公共密钥的一部分（例如其比特的一个子集）作为电子标识符存储在数据提供者数据库中，用于检测由接口单元对未经授权的数据解密。
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