发明名称 Method and apparatus for converting rotary signals to audiofrequency signals
摘要 A method and apparatus for converting into other signals the audiofrequency signals produced through rotary dialing by a calling party during a phone communication established with the apparatus of the invention, the latter being connected to the called party's phone line. The audiofrequency signals produced through rotary dialing are converted either into multifrequencies, such as D.T.M.F. or Touch-Tone, or into other audiofrequencies or other signals. Signals thus converted, and which can be introduced or injected into the called party's phone line, allow a calling party to remotely control from a rotary phone various types of equipment or systems. Further, signals thus converted allow a calling party to command from a rotary phone any equipment existing in the market or to be designed in the future capable of being controlled by means of D.T.M.F. signals such as "Touch-Tone" signals.
申请公布号 US4771450(A) 申请公布日期 1988.09.13
申请号 US19860833275 申请日期 1986.02.27
申请人 CASTRO, HORACIO;CASTRO, MARCELO 发明人 CASTRO, HORACIO;CASTRO, MARCELO
分类号 H04M1/26;H04M11/06;(IPC1-7):H04M11/00 主分类号 H04M1/26
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