Multiple site interactive response system
    283.
    发明授权
    Multiple site interactive response system 失效
    多站点互动响应系统

    公开(公告)号:US6021119A

    公开(公告)日:2000-02-01

    申请号:US735649

    申请日:1996-10-24

    Abstract: An interactive response system includes a central control host system and one or more wireless remote systems geographically separated from the host system and interconnected with the host system through a communication network. Each remote system includes a base unit and a plurality of response units coupled with the base units through a wireless communication link. Each of the response units includes a microphone, a user input device and a control. Audio signals entered through the microphone are communicated over the wireless communication channel to the base unit and over the communication network to the host system. Any inputs entered on the input device are communicated over the wireless communication channel to the base unit. The host system includes an instructor selection device and a display. At least one call list is displayed on the display. The instructor may select characteristics of individuals for inclusion on the call list. Individuals requesting to have an audio link with the instructor are placed on the call list if a characteristic of theirs from a database roster matches the characteristic set up by the instructor for that call list.

    Abstract translation: 交互式响应系统包括中央控制主机系统和与主机系统地理上分离的一个或多个无线远程系统,并通过通信网络与主机系统互连。 每个远程系统包括基本单元和通过无线通信链路与基本单元耦合的多个响应单元。 每个响应单元包括麦克风,用户输入设备和控制。 通过麦克风输入的音频信号通过无线通信信道传送到基本单元,并通过通信网络传送到主机系统。 在输入设备上输入的任何输入都通过无线通信信道传送到基本单元。 主机系统包括教师选择装置和显示器。 显示屏上至少显示一个呼叫列表。 指导者可以选择个人的特征以包括在呼叫列表中。 要求与讲师有音频链接的个人如果来自数据库名单的特征与指导者为该呼叫列表设置的特性相匹配,则将其放置在呼叫列表上。

    FM multiplexed broadcast receiving apparatus
    285.
    发明授权
    FM multiplexed broadcast receiving apparatus 失效
    FM多路复用广播接收装置

    公开(公告)号:US5969634A

    公开(公告)日:1999-10-19

    申请号:US618018

    申请日:1996-03-25

    Abstract: A selective call receiving apparatus for receiving FM multiplexed broadcasting signals which is designed to suppress consumed power by efficiently using a battery as a power supply. This apparatus has a reception circuit, an FM multiplex decoder, a subframe counter and a CPU. The reception circuit receives frames having plural pieces of subframes including ID data for a local terminal. The FM multiplex decoder detects a sync signal in each received subframe. The subframe counter counts the number of subframes in accordance with the detected sync signal. The CPU stops the operation of the reception circuit and FM multiplex decoder after causing the subframe counter to self-operate to perform the counting operation based on the sync signal detected in a continuous reception mode, and activates the reception circuit and FM multiplex decoder only when the count value of the subframe counter matches with a previously assigned subframe number and executes data processing including a process of determining if ID data in received data matches with that of the local terminal.

    Abstract translation: 一种用于接收FM复用广播信号的选呼接收装置,其被设计成通过有效地使用电池作为电源来抑制消耗功率。 该装置具有接收电路,FM复用解码器,子帧计数器和CPU。 接收电路接收具有多个子帧的帧,包括本地终端的ID数据。 FM复用解码器检测每个接收到的子帧中的同步信号。 子帧计数器根据检测到的同步信号对子帧数进行计数。 在使子机计数器自行操作之后,CPU基于在连续接收模式中检测到的同步信号来执行计数操作,停止接收电路和FM多路复用解码器的操作,仅在接收电路和FM多路复用解码器 子帧计数器的计数值与先前分配的子帧号匹配,并执行包括确定接收数据中的ID数据是否与本地终端的ID数据匹配的处理的数据处理。

    Method and apparatus for protecting broadcast software against
unauthorized reception on a software broadcasting system
    287.
    发明授权
    Method and apparatus for protecting broadcast software against unauthorized reception on a software broadcasting system 失效
    用于在软件广播系统上保护广播软件以防止未经授权的接收的方法和装置

    公开(公告)号:US5805704A

    公开(公告)日:1998-09-08

    申请号:US573961

    申请日:1995-12-15

    Applicant: Shih-Pin Hsu

    Inventor: Shih-Pin Hsu

    CPC classification number: H04H60/16 H04H20/91 H04H2201/70

    Abstract: Disclosed is a method and apparatus provided on a game software broadcasting system for protecting the broadcast game software against unauthorized reception after the prescribed period of authorized reception expires. The method and apparatus allows the subscriber to receive and use the broadcast software within the prescribed period of authorized reception, and beyond that period the subscriber will not able to receive correctly decoded data of the broadcast software. The method and apparatus uses a timer on the transmitting site for clocking off the encoding process and uses another timer on the receiving site for clocking off the decoding process. The operating frequency of the decoding clock signal is prescribed with a specific deviation from that of the encoding clock signal. The deviation is prescribed based on the period of authorized reception given to the subscriber. The decoding clock signal is initially set in synchronization with the encoding clock signal at the time the service begins. The deviation will cause the decoding clock signal to be out of synchronization after the prescribed period of authorized reception expires, thereby causing the receiving site unable to decode the received data of the broadcast software. To continue the authorization, the renewal can be made on the line by setting a resetting signal to reset the decoding clock signal back into synchronization with the encoding clock signal.

    Abstract translation: 公开了一种设置在游戏软件广播系统上的方法和装置,用于在授权接收的规定时间期满之后保护广播游戏软件免于未经授权的接收。 该方法和装置允许用户在授权接收的规定时段内接收和使用广播软件,并且超过该周期,用户将不能够正确地接收广播软件的解码数据。 该方法和装置在发射站点上使用定时器来计时编码处理,并在接收站点上使用另一个定时器来计时解码过程。 以与编码时钟信号的特定偏差规定解码时钟信号的工作频率。 基于给予用户的授权接收周期来规定偏差。 解码时钟信号在服务开始时与编码时钟信号同步地初始设定。 在规定的授权接收期间到期后,该偏差将导致解码时钟信号不同步,从而导致接收站点无法解码广播软件的接收数据。 为了继续授权,可以通过设置复位信号来重新进行更新,以将解码时钟信号重新设置为与编码时钟信号同步。

    Data communications system for establishing links between subscriber
stations and broadcast stations
    289.
    发明授权
    Data communications system for establishing links between subscriber stations and broadcast stations 失效
    数据通信系统,用于建立用户站和广播电台之间的链路

    公开(公告)号:US5444769A

    公开(公告)日:1995-08-22

    申请号:US292321

    申请日:1994-08-16

    Abstract: An interactive data communications system comprises a plurality of subscriber stations each of which has an identification code associated therewith and an entry terminal for manually entering data in response to a broadcast signal. Each entry terminal is connectable to a transmission line, the system including switching means for selectively allowing either data or voice signals to be conveyed down the transmission line. The transmission lines are linked to a data switching mechanism which includes a plurality of voice/data multiplexers. A control station is arranged to communicate with the data switching mechanism via a data link, the control station comprising at least one host computer for processing the data entered from the various entry terminals. The invention extends to a method of establishing a data link between a subscriber station and a host station which utilizes an interactive data communications systems.

    Abstract translation: 交互式数据通信系统包括多个用户站,每个用户站具有与其相关联的识别码,以及用于响应广播信号手动输入数据的入口终端。 每个入口终端可连接到传输线,该系统包括切换装置,用于选择性地允许数据或语音信号沿传输线路传送。 传输线被链接到包括多个语音/数据多路复用器的数据交换机构。 控制站被布置成经由数据链路与数据交换机构通信,所述控制站包括用于处理从各个入口终端输入的数据的至少一个主计算机。 本发明扩展到在用户站和主机站之间建立利用交互式数据通信系统的数据链路的方法。

    Cable television system selectively distributing pre-recorded video and
audio messages
    290.
    发明授权
    Cable television system selectively distributing pre-recorded video and audio messages 失效
    有线电视系统选择性地分发预录的视频和音频消息

    公开(公告)号:US4941040A

    公开(公告)日:1990-07-10

    申请号:US154386

    申请日:1988-02-10

    Abstract: A method of, and a system for, selectively delivering still television video with accompanying audio to home subscribers over a cable television system for advertising, promotional or educational purposes. A maximum number of home subscribers can interactively request presentations of their own choosing to be displayed on their home television sets. Only one standard television channel is required for transmission of still video with accompanying audio to serve 300 concurrent users. No equipment is required in the subscriber's home. The video is presented as still frames from one of a number of videodisc players, transmitted over one television channel during the appropriate time interval of 1/30th (or 1/25th) of a second. Such video frames, which may also contain overlaid graphics information, are uniquely addressed to a remote storage device. Unused bandwidth is used for the transmission of up to 300 discrete audio messages. The remote storage device identifies the appropriate video still frame, stores it, combines it with the corresponding audio message and conveys both to the home subscribers'television on a pre-selected channel. By uniquely addressing video frames to the remote storage device, either 30 (or 25) different video frames per second can be conveyed on one television channel to 30 (or 25) different remote storage devices for retransmission to home subscribers. Thus, if a home subscriber sees a given still video frame for 10 seconds, his remote storage device need not be updated for those 10 seconds, enabling the system to transmit 300 (10 seconds.times.30/second) different video frames to 300 other remote storage devices, thereby serving 300 concurrent users.

    Abstract translation: 一种用于通过有线电视系统向家庭用户选择性地将伴随音频的静止电视视频提供给广告,促销或教育目的的方法和系统。 家庭用户的最大数量可以交互地请求他们自己选择的演示文稿以在家庭电视机上显示。 只需要一个标准的电视频道来传输带有伴音的静态视频,为300位并发用户提供服务。 用户家中不需要设备。 视频从多个视频盘播放器之一呈现为静止帧,在一秒钟的1/30(或1 / 25th)的适当时间间隔内通过一个电视频道发送。 也可以包含重叠的图形信息的这样的视频帧被唯一地寻址到远程存储设备。 未使用的带宽用于传输多达300个离散音频消息。 远程存储设备识别适当的视频静止帧,存储它,将其与对应的音频消息相结合,并将其传送到预先选择的频道上的家庭订户的电话。 通过将视频帧唯一地寻址到远程存储设备,可以在一个电视频道上将每秒30(或25个)不同的视频帧传送到30个(或25个)不同的远程存储设备,以便重新传送给家庭用户。 因此,如果家庭用户看到给定的静止视频帧10秒,则他的远程存储设备不需要在10秒钟内更新,使得系统能够向300个其他远程存储设备发送300(10秒×30秒)的不同视频帧 ,从而为300个并发用户提供服务。

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