Communication connecting device capable of reducing a load on an IP network and a data output control method

    公开(公告)号:US07012920B2

    公开(公告)日:2006-03-14

    申请号:US09940862

    申请日:2001-08-29

    CPC classification number: H04N1/00209 H04N2201/0025 H04N2201/0065

    Abstract: In an Internet facsimile apparatus, a facsimile controller temporarily stores data received from a G3 (Group 3) facsimile apparatus or the other terminal unit to communicate with. A packetizer/depacketizer packetizes the data sequentially read out in accordance with size information fed from a size information storage and feeds the resulting packets to a UDPTL controller and a buffer. The packetizer/depacketizer determines whether data received from the other terminal unit and decoded is a response to data sent from the G3 facsimile apparatus or retransmitted data, and delivers a response detection signal representative of the result of decision to the UDPTL controller. In the UDPTL controller, a filtering circuit deletes stored past data in accordance with the response detection signal representative of a response. The apparatus reduces a load on an IP (Internet Protocol) network.

    Communication connecting device with a reliable transmission capability and a data output control method
    4.
    发明授权
    Communication connecting device with a reliable transmission capability and a data output control method 有权
    通信连接设备具有可靠的传输能力和数据输出控制方式

    公开(公告)号:US06975420B2

    公开(公告)日:2005-12-13

    申请号:US09933140

    申请日:2001-08-21

    CPC classification number: H04N1/00209 H04L69/08 H04N2201/0024

    Abstract: A communication connecting device includes a terminal unit controller for temporarily storing data received from a sending terminal unit. A packetizer/depacketizer collectively codes the data sequentially read out in accordance with size information fed from a size information storage. The packetizer/depacketizer determines whether or not the data is control data and delivers, if the answer of the decision is positive, a notification control signal to a control data monitor. A UDPTL (facsimile User Datagram Protocol Transport Layer protocol) controller feeds a UDPTL packet input from the packetizer/depacketizer to the control data monitor in accordance with ITU-T (International Telecommunication Union-Telecommunication standardization sector) Recommendation T.38. The control data monitor repeatedly sends the UDPTL packet on the basis of the notification control signal.

    Abstract translation: 通信连接装置包括用于临时存储从发送终端单元接收的数据的终端单元控制器。 打包器/解包器集体地根据从尺寸信息存储器馈送的尺寸信息顺序地读出数据。 分组器/解包器确定数据是否是控制数据,并且如果判定的答案为肯定则将通知控制信号传送到控制数据监视器。 根据ITU-T(国际电信联盟 - 电信标准化部门)建议T.38,UDPTL(传真用户数据报协议传输层协议)控制器将从分组器/解包器输入的UDPTL分组提供给控制数据监视器。 控制数据监视器根据通知控制信号重复发送UDPTL包。

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