发明名称 INSPECTION SIGNAL ANALYZER IN CATV SYSTEM
摘要 PURPOSE:To make the inspection easy, by comparing an incoming data signal in response to the command code from a terminal device having an address setter which can set the specific address number arbitrarily, with the command code succeeding to the address code. CONSTITUTION:An inspection signal analyzer 32 can select addresses freely and sets the address of a main box 10. The inspection signal only of the address code set at an address setter 33 among the inspection signals from an inspection signal generator 34 is inputted to the main box 10, which outputs the response corresponding to the command code succeeding to the address code to the inspection signal analyzer 32. The device 32 compares the set address code with the response signal from the main box 10 and it judges whether the operation is normal or not depending on whether the response signal coincides the instruction item of the command code succeeding the address code or not.
申请公布号 JPS56169481(A) 申请公布日期 1981.12.26
申请号 JP19800073584 申请日期 1980.05.30
申请人 PIONEER ELECTRONIC CORP 发明人 TSUDA YOUICHIROU
分类号 H04B17/00;H04H1/04;H04H9/00;H04N7/173;H04N17/00 主分类号 H04B17/00
代理机构 代理人
主权项
地址