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1. 发明授权

US6101368A Bidirectional external device interface for communications receiver 失效
标题翻译：用于通信接收机的双向外部设备接口
公开(公告)号：US6101368A
公开(公告)日：2000-08-08
申请号：US812435
申请日：1997-03-07
申请人： Brad Farnsworth , Ray Nuber , Allen Shumate
发明人： Brad Farnsworth , Ray Nuber , Allen Shumate
IPC分类号： H04N5/44 , H04H1/00 , H04N5/91 , H04N7/10
CPC分类号： H04N5/4401 , H04N21/42207 , H04N21/42219
摘要： An interface for a communications receiver such as a cable or satellite television receiver allows control between the receiver and an external device. The external device can supplement the services provided by the receiver. The interface includes a bidirectional control port for coupling the external device to the communications receiver. Ports for isochronous data and high speed data are also provided. The external device can simulate commands available via a user interface for the receiver, such as remote control actuations. In this manner, the external device can access information and control the receiver (e.g., to tune to a specific television or data channel) via the bidirectional control port. The interface enables the external device to use the full capabilities of the communication receiver for data acquisition and processing. The acquired and processed data is then delivered to the external device via the interface.
摘要翻译：用于诸如有线或卫星电视接收机之类的通信接收机的接口允许接收机和外部设备之间的控制。外部设备可以补充接收机提供的服务。该接口包括用于将外部设备耦合到通信接收器的双向控制端口。还提供了同步数据和高速数据的端口。外部设备可以模拟通过接收器的用户界面可用的命令，例如远程控制启动。以这种方式，外部设备可以通过双向控制端口访问信息并控制接收机（例如，调谐到特定的电视或数据信道）。该接口使外部设备能够使用通信接收器的全部功能进行数据采集和处理。然后，通过接口将获取和处理的数据传送到外部设备。

2. 发明授权

US5091936A System for communicating television signals or a plurality of digital audio signals in a standard television line allocation 失效
标题翻译：用于在标准电视线路分配中传送电视信号或多个数字音频信号的系统
公开(公告)号：US5091936A
公开(公告)日：1992-02-25
申请号：US647827
申请日：1991-01-30
申请人： Ron D. Katznelson , Paul Moroney , W. Allen Shumate
发明人： Ron D. Katznelson , Paul Moroney , W. Allen Shumate
IPC分类号： H04H20/33 , H04H60/23 , H04K1/00 , H04N7/04
CPC分类号： H04N7/04 , H04H20/103 , H04H60/23 , H04K1/00 , H04H20/33
摘要： A system is provided for selectively transmitting horizontal television lines including video and digital audio components or equivalent digital data lines containing a plurality of audio program signals. A conventional television signal transmission places a digital audio signal in the horizontal blanking interval, followed by analog video information. In accordance with the present invention, the "window" containing the analog video information is replaced with a plurality of digital audio signals that are time division multiplexed within the window. An additional audio channel is placed in the horizontal blanking interval, at the same location the audio is placed when video information is transmitted. Selector switches are provided in the encoder and decoder for processing a composite waveform as either a video signal with an associated audio channel, or as a multiple channel digital audio signal. Independent encryption and decryption of each of the multiple audio channels is provided.
摘要翻译：提供一种用于选择性地发送包括视频和数字音频分量的水平电视线或包含多个音频节目信号的等效数字数据线的系统。传统的电视信号传输将水平消隐间隔中的数字音频信号置于模拟视频信息之后。根据本发明，包含模拟视频信息的“窗口”被在窗口内被时分复用的多个数字音频信号所取代。在发送视频信息时，在音频放置的相同位置处，在水平消隐间隔中放置一个附加音频通道。在编码器和解码器中提供选择器开关，用于将复合波形作为具有相关音频通道的视频信号或作为多声道数字音频信号进行处理。提供了多个音频通道中的每一个的独立加密和解密。

3. 发明授权

US5671276A Method and apparatus for impulse purchasing of packaged information services 失效
标题翻译：用于脉冲购买包装信息服务的方法和装置
公开(公告)号：US5671276A
公开(公告)日：1997-09-23
申请号：US493364
申请日：1995-07-21
申请人： Mark K. Eyer , Allen Shumate
发明人： Mark K. Eyer , Allen Shumate
IPC分类号： G06F21/00 , G06F21/10 , G06F21/33 , G06Q10/00 , G06Q30/02 , G06Q30/06 , H04H20/76 , H04H60/15 , H04H60/23 , H04L9/10 , H04N7/16 , H04N7/167 , H04N7/173 , H04N21/258 , H04N21/472 , H04N21/6334 , H04L9/00
CPC分类号： H04N7/1675 , H04N21/4325 , H04N21/4334 , H04N21/472 , H04N21/63345 , H04N21/6581 , H04N21/8355
摘要： Impulse purchasing is provided for packages of services offered to consumers via an information network. A plurality of services is offered for individual purchase on an impulse basis via a user terminal coupled to the information network. The plurality of services is offered for purchase as a package on terms that may be more favorable than when the services are purchased individually. Upon purchase of a package, a package record is established for access by the user terminal. The package record provides cryptographically secure access to services provided in the package during a defined time period over which the package is valid.
摘要翻译：通过信息网络为消费者提供的一揽子服务提供了脉搏采购。提供多个服务，用于通过耦合到信息网络的用户终端以脉冲方式进行个体购买。多个服务被提供作为一个包装，以比单独购买服务更有利的条件购买。在购买包时，建立用于用户终端访问的包记录。软件包记录在封装有效的定义时间段内提供对包中提供的服务的加密安全访问。

4. 发明授权

US5594794A Method and apparatus for free previews of communication network services 失效
标题翻译：通信网络服务免费预览的方法和装置
公开(公告)号：US5594794A
公开(公告)日：1997-01-14
申请号：US324591
申请日：1994-10-18
申请人： Mark Eyer , Allen Shumate , Paul Moroney
发明人： Mark Eyer , Allen Shumate , Paul Moroney
IPC分类号： G06F21/10 , H04H20/00 , H04H60/15 , H04H60/21 , H04H60/23 , H04K1/00 , H04N7/16 , H04N7/167 , H04N21/442 , H04N21/4627 , H04N21/472 , H04L9/00
CPC分类号： H04N7/165 , H04N21/4325 , H04N21/4334 , H04N21/47211 , H04N21/8355 , H04N21/8453 , H04N7/1675
摘要： Limited duration previews of program offerings available for purchase via a communication network are provided in a cryptographically secure manner at virtually any time during the service. The invention has particular applicability to the provision of video services on a pay-per-view basis. Such a video service is provided during a program epoch. A fixed period is defined during the program epoch when portions of the video service are available for viewing on a preview basis. A consumer is allowed to preview, without purchase, portions of the video service at any time during the fixed period for up to a maximum preview duration that is shorter than the fixed period. The consumer can then purchase the video service for viewing during the program epoch after previewing portions thereof. A plurality of records is maintained to service different previewable programs concurrently.
摘要翻译：在服务期间的几乎任何时间，以密码安全的方式提供通过通信网络可购买的节目产品的有限持续时间预览。本发明特别适用于以按付费方式提供视频服务。这样的视频服务是在程序时代期间提供的。在节目纪录期间定义固定时期，视频服务的部分可用于在预览的基础上观看。允许消费者在固定期间内随时预览视频服务的一部分，最长预期持续时间短于固定时间段。然后，消费者可以在预览其部分之后在节目纪元期间购买视频服务以供观看。维持多个记录以同时服务不同的可预览程序。

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