公开(公告)号：US3766523A

公开(公告)日：1973-10-16

申请号：US3766523D

申请日：1972-10-04

Applicant: MOTOROLA INC

Inventor： BROCKER J ,  CHAPMAN R ,  POWELL J ,  PEAY R ,  JACOBS P ,  JOHNSON R

IPC: G08G1/123 ,  H04L1/00 ,  H04W84/02 ,  H04B1/00 ,  H04Q1/45

CPC classification number: H04W84/025 ,  G08G1/202 ,  H04L1/00

Abstract: A selective calling sequential tone signalling system for transmitting and receiving predetermined coded messages. A base station and at least one mobile station is provided, and message, status, automatic status and identification codes comprising predetermined format sequences having seven tones each are transmitted therebetween. Automatic message acknowledgment is provided for message receipt verification, and apparatus is provided for substantially eliminating false reception of signals having an improper format.

Abstract translation: 一种用于发送和接收预定编码消息的选择性呼叫顺序音调信令系统。 提供基站和至少一个移动站，并且在它们之间传输包括具有七个音调的预定格式序列的消息，状态，自动状态和识别码。 为消息接收验证提供了自动消息确认，并且提供了用于基本上消除具有不正确格式的信号的错误接收的装置。