公开(公告)号：US4649533A

公开(公告)日：1987-03-10

申请号：US545068

申请日：1983-10-25

申请人： William Chorley ,  Robert Redding ,  Christopher Fries

发明人： William Chorley ,  Robert Redding ,  Christopher Fries

IPC分类号： H04M11/08 ,  H04Q11/04

CPC分类号： H04M11/085 ,  Y10S379/912

摘要： The information retrieval method and apparatus includes a group of geographically widely-distributed terminals, which accept a remotely located host computer. Each terminal includes a memory for storing a plurality of items of call origination information. A call original circuit transmits individual ones of the items of call origination information via a communication path to the switching system for causing it to extend the path to the host computer. Logic circuits transfer a first one of the items of call origination information indicative of the geographically shortest communication path, to the call origination circuit in an attempt to extend a communication path, of the geographically shortest length, to the host computer. If the attempt proves unsuccessful, the logic circuit sends automatically a second one of the items of call origination information, indicative of the next shortest communication path length.

摘要翻译： 信息检索方法和装置包括接收远程位置的主计算机的一组地理上广泛分布的终端。 每个终端包括用于存储多个呼叫发起信息项的存储器。 呼叫原始电路通过通信路径将多个呼叫始发信息中的各个发送到交换系统，以使其将主路径扩展到主计算机。 逻辑电路将指示地理上最短的通信路径的呼叫始发信息的第一项传送到呼叫发起电路，以尝试将地理上最短的长度的通信路径扩展到主计算机。 如果尝试证明不成功，则逻辑电路自动发送表示下一个最短通信路径长度的呼叫始发信息项中的第二个。