作者: Hisao Sakai
DOI:
关键词: Electronic engineering 、 Control unit 、 Set (abstract data type) 、 Engineering 、 Terminal (electronics) 、 Push-button 、 Electrical engineering 、 Filter (signal processing) 、 Signal
摘要: In an audio response device comprising incoming trunk, a push button signal receiver, voice output unit and control associated with terminal set such as calling telephone set, there is provided full duplex which includes hybrid circuit disposed in the trunk band-pass filter interposed between for filtering frequency component corresponding to specified button, may receive passed through from simultaneously so that can be received even when transmitted set.