发明名称 Data pulse register/sender for a TDM switching system
摘要 A dial pulse register/sender for use in a telephone system operating in time frames each consisting of a plurality of time slots. The register/sender is capable of detecting and sending supervisory signals in dial pulse format for each time slot. The register/sender includes an integrator for filtering contact bounce, a timer for detecting a change of state in the supervisory signal, a pulse counter for counting the digits received, and sender for sending supervisory signals. Each time slot has one memory location and sequentially uses common logic of the register/sender.
申请公布号 US4133980(A) 申请公布日期 1979.01.09
申请号 US19770762801 申请日期 1977.01.26
申请人 TRW, INC. 发明人 MOED, JOHANNES A. R.
分类号 H04J3/12;H04Q11/04;(IPC1-7):H04J3/12 主分类号 H04J3/12
代理机构 代理人
主权项
地址