Tag Archives: judge

Automatic judge device of dual systems for incoming display

Application Number: 00109720Application Date: 2000.06.30Publication Number: 1331541Publication Date: 2002.01.16Priority Information: International: H04M3/42Applicant(s) Name: Lingyang Science and Technology Co LtdAddress: Inventor(s) Name: Xie MengcongPatent Agency Code: 11021Patent Agent: tang baobengAbstract An automatic pre-judging device for displaying the incoming telephone number in DTMF of FSK system is disclosed. A signal detector is used to sense the signal… Read More »