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    • 2. 发明授权
    • Apparatus and method for optimizing the use of multiple gateway in ToL systems
    • 用于优化ToL系统中多个网关的使用的装置和方法
    • US06810015B1
    • 2004-10-26
    • US09419821
    • 1999-10-15
    • William Joseph BeydaShmuel Shaffer
    • William Joseph BeydaShmuel Shaffer
    • H04L1266
    • H04M7/1285H04M3/367H04M2203/205
    • A system and method for a gatekeeper (108) to multicast commands to all gateways (106) in the system. The gateways (106) listen for one of their peer gateways (106) to accept. If one accepts, then the other gateways ignore the pending call request. The gatekeeper (108) making the request can specify an order in which the gateways (106) are to respond to its request. The order may be based on a variety of factors, such as number of calls presently being handled by a particular gateway (106) or cost of calls. Further, the gateways (106) may be provided with timers to process a call request in the requested order if a gateway (106) earlier in the queue fails to respond.
    • 一种用于关守(108)向系统中的所有网关(106)组播命令的系统和方法。 网关(106)监听其对等网关(106)中的一个接受。 如果接受,则其他网关将忽略挂起的呼叫请求。 进行请求的网闸(108)可以指定网关(106)响应其请求的顺序。 订单可以基于各种因素,例如当前正由特定网关(106)处理的呼叫的数量或呼叫成本。 此外,如果队列中较早的网关(106)未响应,则网关(106)可以设置有定时器,以处理所请求的顺序中的呼叫请求。
    • 4. 发明授权
    • Method and apparatus for transmitting address changes
    • US06373940B1
    • 2002-04-16
    • US09073068
    • 1998-05-04
    • Shmuel ShafferWilliam Joseph Beyda
    • Shmuel ShafferWilliam Joseph Beyda
    • H04M100
    • A communication system for transmitting address changes. A communication system includes a source communication system and one or more destination communication systems, each of which is identified by a unique number or address. A memory in the source communication system maintains a record of each destination communication system that communicates with it. If the number or address of the source communication is changed, the source communication system generates a new number or address message which is transmitted to each of the destination communication systems. The destination communication systems receive the new number or address message and update a memory to reflect the new number or address of the source communication system. Those destination systems that are able to read the new number or address message and update a record of the number or address for the source communication system generate an acknowledge signal which is transmitted to the source communication system. The source communication system may transmit a human readable new number or address message to those destination communication systems that have not transmitted the acknowledge signal. The communications systems may comprise telephones, facsimile machines or computers having e-mail or IP addresses.
    • 5. 发明授权
    • System and method for reducing the latency for time sensitive data over CSMA/CD networks
    • 通过CSMA / CD网络减少时间敏感数据的延迟的系统和方法
    • US06172984B2
    • 2001-01-09
    • US08976196
    • 1997-11-21
    • William Joseph BeydaShmuel Shaffer
    • William Joseph BeydaShmuel Shaffer
    • H04L12413
    • H04L12/413H04L12/4015
    • A device (104) transmitting or receiving low priority data may receive or be directed to transfer higher priority data for transmission. If the incoming data is of sufficiently high priority, the device (104) will interrupt transmission of the outgoing data by generating a signal on the bus (102) indicative of a collision. The receiving device (106) will then back-off. To prevent another device (106, 108) from seizing the bus after the back-off, the device (104) immediately (i.e., before expiration of a single slot time), proceeds with the high priority transmission. Once it is finished, the device (104) may resume its earlier lower priority transmission.
    • 发送或接收低优先级数据的设备(104)可以接收或指示传送较高优先级的数据进行传输。 如果输入数据具有足够高的优先级,则设备(104)将通过在总线(102)上产生指示冲突的信号来中断输出数据的传输。 然后,接收设备(106)将被退回。 为了防止另一设备(106,108)在退避之后占用总线,设备(104)立即(即,在单个时隙时间到期之前)继续进行高优先级传输。 一旦完成,设备(104)可以恢复其较早的低优先级传输。
    • 7. 发明授权
    • Method and system for enhanced client identification
    • 增强客户识别的方法和系统
    • US6125108A
    • 2000-09-26
    • US54856
    • 1998-04-02
    • Shmuel ShafferWilliam Joseph Beyda
    • Shmuel ShafferWilliam Joseph Beyda
    • H04L29/06H04L29/08H04L29/12H04M7/00H04L12/16
    • H04M7/006H04L29/12103H04L29/12122H04L61/1535H04L61/1547H04L67/16H04L67/306
    • A method and system for client identification include a control unit configured to enable call service features in communication devices supported by the control unit. A first communication device transmits an off-hook message to the call control unit with a first memory-space physical address locally accessed from memory associated with the first communication device. The first physical address represents a location in main memory of call service profile data associated with the first communication device. The control unit responds to the first physical address by accessing a first data set from the main memory. A verification program determines whether the first data set includes the first call service profile. The control unit enables a first set of call services indicated by the first call service profile data for the first communication device if the first call service profile is included in the first data set. If the first data set does not include the first call service profile data, the control unit searches for a current address of the first call service profile, transmits the current address to the first communication device, and accesses the first call service profile from the current address before enabling the first set of call services. In a preferred embodiment, the first communication device locally stores call service profile addresses for a local communication device and a remotely located communication device. The call control unit is configured to enable call services in the local and remotely located communication devices in response to receiving the call service profile addresses for the local and remotely located communication devices in call-setup messages transmitted by the first communication device.
    • 用于客户端识别的方法和系统包括:控制单元,被配置为使能由控制单元支持的通信设备中的呼叫服务特征。 第一通信设备使用从与第一通信设备相关联的存储器本地访问的第一存储器空间物理地址向呼叫控制单元发送摘机消息。 第一物理地址表示与第一通信设备相关联的呼叫服务简档数据的主存储器中的位置。 控制单元通过从主存储器访问第一数据集来响应第一物理地址。 验证程序确定第一数据集是否包括第一呼叫服务简档。 如果第一呼叫服务简档包括在第一数据集中,则控制单元启用由第一通信设备的第一呼叫服务简档数据指示的第一组呼叫服务。 如果第一数据组不包括第一呼叫服务简档数据,则控制单元搜索第一呼叫服务简档的当前地址,将当前地址发送到第一通信设备,并从当前的第一呼叫服务配置文件访问 启用第一组呼叫服务之前的地址。 在优选实施例中,第一通信设备本地存储本地通信设备和远程定位的通信设备的呼叫业务简档地址。 呼叫控制单元被配置为响应于在由第一通信设备发送的呼叫建立消息中接收到本地和远程定位的通信设备的呼叫服务简档地址,来启用本地和远程定位的通信设备中的呼叫服务。
    • 9. 发明授权
    • System and method for enhanced video conferencing security
    • 增强视频会议安全性的系统和方法
    • US5959662A
    • 1999-09-28
    • US073067
    • 1998-05-04
    • Shmuel ShafferWilliam Joseph BeydaEli JacobiVinesh R. Mehta
    • Shmuel ShafferWilliam Joseph BeydaEli JacobiVinesh R. Mehta
    • H04N7/15H04N7/14
    • H04N7/15
    • A video conferencing system (10) for providing enhanced security to a conference room. A local video conferencing system (10) establishes a conference call with a remote video conferencing system. A security system within the local video conferencing system (10) monitors activity in the local video conferencing system's (10) conference room and disconnects the conference call if no activity is detected after a predetermined period of time. If activity is detected after a period of nonactivity, users of the local video conferencing system (10) are alerted that a call is in progress. The users are then given the option of continuing or disconnecting the call. In addition, the security system detects the presence of a black screen or no video signal from the remote video conferencing system and if detected, alerts the users that a call is in progress.
    • 一种用于向会议室提供增强的安全性的视频会议系统(10)。 本地视频会议系统(10)与远程视频会议系统建立电话会议。 本地视频会议系统(10)中的安全系统监视本地视频会议系统(10)会议室中的活动,并且如果在预定时间段之后没有检测到活动,则断开电话会议。 如果在非活动期之后检测到活动,则本地视频会议系统(10)的用户被警告呼叫正在进行中。 然后,用户可以选择继续或断开呼叫。 此外,安全系统检测到来自远程视频会议系统的黑屏或没有视频信号的存在,并且如果检测到,则向用户警告呼叫正在进行。