公开(公告)号：US06609159B1

公开(公告)日：2003-08-19

申请号：US09201303

申请日：1998-11-30

申请人： Semyon Dukach ,  Uri Guttman ,  Christopher M. Montgomery

发明人： Semyon Dukach ,  Uri Guttman ,  Christopher M. Montgomery

IPC分类号： G06F954

CPC分类号： G06F9/544 ,  G06F9/5033 ,  G06F2209/5016 ,  G06F2209/542 ,  H04L29/08846 ,  H04L67/2823 ,  H04L67/2842 ,  H04L67/2895

摘要： A client-server system includes a new front end server which interposes itself between a prior (back end) server and its clients using an interposed dynamically-loaded library linked to the back end. The interposed library and front end can provide enhanced services without requiring reconfiguration of either the back end server or its clients. The front end can accept network connections on the same port as the back end server is programmed to. The interposed library intercepts standard network system calls by the back end and emulates their behavior by communicating with the front end. The front end can send file descriptors of either direct connections with clients, or of pipes for relaying requests and response from and to clients through the front end, to the interposed library for return to calls by the back end to accept connections. The capabilities which the front end can provide include caching, protocol conversion, session affinity, filtering, traffic conversion, and spreading load between multiple back end processes.

摘要翻译： 客户机 - 服务器系统包括一个新的前端服务器，它将自身插入到前（后端）服务器及其客户端之间，使用插入的动态加载库链接到后端。 插入的库和前端可以提供增强的服务，而不需要重新配置后端服务器或其客户端。 前端可以接受与后端服务器编程相同的端口上的网络连接。 插入的库拦截后端的标准网络系统调用，并通过与前端通信来模拟其行为。 前端可以发送与客户端的直接连接的文件描述符，或者通过前端向客户端发送请求和响应的管道，以及后端返回到接受连接的呼叫的文件描述符。 前端可以提供的功能包括缓存，协议转换，会话亲和性，过滤，流量转换和多个后端进程之间的扩展负载。

公开(公告)号：US5354069A

公开(公告)日：1994-10-11

申请号：US823185

申请日：1992-01-21

申请人： Uri Guttman ,  Avi N. Nelson ,  Robert A. Piankian ,  Joseph Scally

发明人： Uri Guttman ,  Avi N. Nelson ,  Robert A. Piankian ,  Joseph Scally

IPC分类号： G06F19/00 ,  G07C15/00 ,  G07F17/32 ,  H04M11/08 ,  A63F9/22

CPC分类号： H04M11/08 ,  G07C15/006 ,  G07F17/32

摘要： A lottery by phone system which permits a caller to place bets with a state's existing lottery computer system via a telephone call from a touch-tone telephone which is connected via the public telephone network to a voice response unit which decodes touch-tones entered by the caller. The voice response unit prompts the caller with preprogrammed digitized audio messages and has each caller identified via a unique identification number. It permits such a caller to select which game to place a bet with and to have the option of picking their own numbers or having the system randomly pick numbers for them. It allows the caller to collect their winnings using a touch tone telephone via another telephone call, and to have the automatic interaction with the caller handle data entry errors, and to have caller queries regarding previous such bets answered by an operator. The system communicates with the existing state lottery computer via emulation of the existing communications protocol used between the existing state lottery computer and on-line terminals and performs automatic high level error recovery beyond the specifications of that communications protocol.

摘要翻译： 通过电话系统的彩票，其允许呼叫者通过来自经由公共电话网络连接的按键式电话的电话呼叫将状态的现有彩票计算机系统投注到语音响应单元，该语音响应单元解码由 呼叫者。 语音响应单元通过预编程的数字化音频消息提示呼叫者，并且通过唯一的标识号识别每个呼叫者。 它允许这样的呼叫者选择哪个游戏进行下注，并且可以选择选择自己的号码或使系统随机地为其选择数字。 它允许呼叫者通过另一个电话呼叫使用触摸音电话来收集他们的奖金，并且使得与呼叫者的自动交互处理数据输入错误，并且有关于由操作者应答的先前这样的投注的呼叫者查询。 该系统通过仿真在现有的状态彩票计算机和在线终端之间使用的现有通信协议与现有的国家彩票计算机进行通信，并且执行超出该通信协议的规范的自动高级错误恢复。