Telemetry system and facsimile machine
    1.
    发明申请
    Telemetry system and facsimile machine 审中-公开
    遥测系统和传真机

    公开(公告)号:US20070060120A1

    公开(公告)日:2007-03-15

    申请号:US11510436

    申请日:2006-08-25

    IPC分类号: H04Q7/20

    摘要: The systems and methods disclosed herein relate to digital data communication systems, and more particularly, the systems and methods relate to systems and methods for facilitation digital communication between a first modem equipped facsimile machine and a second modem equipped facsimile machine. In one example, the system has the second modem equipped facsimile machine system or a first modem equipped facsimile machine that utilizes a modem for data communication, and a telemetry device with a processor for communicating with the first modem equipped facsimile machine and a digital cellular radio for communicating with the processor. The processor relays digital data from the first modem equipped facsimile machine to the digital cellular radio and the digital cellular radio transmits the digital data to the second modem equipped facsimile machine system. This system allows a user to transmit the digital data representing a document. This system facilitates bi-directional communication between a first modem equipped facsimile machine connected to a digital cellular or wireless network via the first telemetry device and a second modem equipped facsimile machine connected to a land (POTS) telephone line or wireless network via the second telemetry device. Data transport over PSTN or wireless networks can be via a circuit-switched or packet data connection.

    摘要翻译: 本文公开的系统和方法涉及数字数据通信系统,并且更具体地说,系统和方法涉及用于在配备第一调制解调器的传真机和配备有第二调制解调器的传真机之间促进数字通信的系统和方法。 在一个示例中,系统具有第二调制解调器配备的传真机系统或利用用于数据通信的调制解调器的第一调制解调器配备的传真机,以及具有处理器的遥测设备,用于与配备有第一调制解调器的传真机和数字蜂窝无线电 用于与处理器通信。 处理器将来自配备有调制解调器的传真机的数字数据中继到数字蜂窝无线电,并且数字蜂窝无线电将数字数据传输到配备有第二调制解调器的传真机系统。 该系统允许用户发送表示文档的数字数据。 该系统促进经由第一遥测装置连接到数字蜂窝或无线网络的第一调制解调器配置的传真机与经由第二遥测连接到陆地(POTS)电话线或无线网络的第二调制解调器配备的传真机之间的双向通信 设备。 通过PSTN或无线网络的数据传输可以通过电路交换或分组数据连接。

    Secured authentication in a dynamic IP environment
    3.
    发明申请
    Secured authentication in a dynamic IP environment 审中-公开
    动态IP环境中的安全认证

    公开(公告)号:US20050246346A1

    公开(公告)日:2005-11-03

    申请号:US10942195

    申请日:2004-09-16

    摘要: In one embodiment, after establishing a packet data connection (1XRTT or GPRS) and obtaining an IP address, the remote data device registers with the proxy server using UDP packets. The remote data device periodically transmits UDP packets to the proxy server to maintain the registration and possibly any NAT/firewall translations (for the UDP session) in the cellular network. The proxy server is configured to listen on a different TCP port for the remote data device. This is a fixed port number for any given remote data device and is used for addressing the remote data device by the central data acquisition system that wants to access the remote data device. When the proxy server receives a TCP connection (from the central data acquisition system) on the port for a specific remote data device, the proxy server marks the remote data device as being busy and transmits a UDP message to the remote data device informing it that a connection is requested. If the proxy server does not receive a TCP connection from the remote data device, the proxy server transmits connection no-acknowledge message to the central data acquisition system, and marks the remote data device as being idle. Upon receipt of the connection request message, the remote data device establishes a TCP session with the proxy server. The proxy server establishes communication between the central data acquisition system and the remote data device. If the proxy server can establish communication, the proxy server terminates communication and marks the remote data device as being idle.

    摘要翻译: 在一个实施例中,在建立分组数据连接(1XRTT或GPRS)并获得IP地址之后,远程数据设备使用UDP分组向代理服务器注册。 远程数据设备周期性地向代理服务器发送UDP分组,以便在蜂窝网络中维护注册以及可能的任何NAT /防火墙翻译(对于UDP会话)。 代理服务器配置为在远程数据设备的不同TCP端口上侦听。 这是任何给定的远程数据设备的固定端口号,用于通过想要访问远程数据设备的中央数据采集系统寻址远程数据设备。 当代理服务器在特定远程数据设备的端口上接收TCP连接(来自中央数据采集系统)时,代理服务器将远程数据设备标记为忙,并向远程数据设备发送UDP消息,通知它 请求连接。 如果代理服务器没有从远程数据设备接收到TCP连接,则代理服务器向中央数据采集系统发送连接不确认消息,并将远程数据设备标记为空闲。 在接收到连接请求消息时,远程数据设备与代理服务器建立TCP会话。 代理服务器建立中央数据采集系统和远程数据设备之间的通信。 如果代理服务器可以建立通信,则代理服务器终止通信,并将远程数据设备标记为空闲。