公开(公告)号：US3898396A

公开(公告)日：1975-08-05

申请号：US50626474

申请日：1974-09-16

Applicant: COGNITRONICS CORP

Inventor： GUSHUE EDWARD J ,  INSOLIA GERARD ,  IRANI FURROKH S

IPC: H04M3/28 ,  H04B3/46 ,  G10L1/10

CPC classification number: H04M3/28 ,  Y10S379/914

Abstract: Test equipment for verifying trunk routing in a telephone system by developing, in response to a verification request, a series of spoken words identifying the area code and the telephone exchange to which the trunk under test is connected. The equipment includes a plurality of input channels each coupled to the verification line for a corresponding telephone exchange. A ringing signal on any channel is detected and a binary flag is set in an associated latch. All of the latches are scanned in rotational sequence by a multiplexer which, when a flag is detected, stops scanning and initiates a read-out operation from a speech-generating unit having a number of selectable speech signals stored in digital format in a read-only memory. Special logic circuitry is provided to identify the required telephone exchange digits, and to produce a read-out of the area code and exchange digits in sequence. The digits which are developed in response to a verification request are controlled by manuallyinsertable encoding keys, permitting customer modification of the predetermined voice response.

Abstract translation: 用于验证电话系统中的中继路由的测试设备，通过响应于验证请求，开发一系列标识区域代码的口语单词和被测中继线所连接的电话交换机。 该设备包括多个输入通道，每个输入通道耦合到验证线用于相应的电话交换机。 检测任何通道上的振铃信号，并在相关联的锁存器中设置二进制标志。 所有的锁存器通过多路复用器以旋转顺序扫描，当检测到标志时，停止扫描并从具有以数字格式存储的可读语音信号的数量的语音产生单元发起读出操作， 只有记忆。 提供特殊逻辑电路以识别所需的电话交换数字，并且产生区域代码的读出和顺序交换数字。 响应于验证请求而开发的数字由手动插入的编码键控制，允许客户修改预定的语音响应。