发明名称 SISTEMA PER LA TRASMISSIONE DI INFORMAZIONI
摘要 A system for transmitting information and accomplishing control including a transmitter and at least one receiver in which the transmitter produces an ultrasonic wave or an electrical signal and includes a circuit for modulating the ultrasonic wave or electrical signal as a function of a time interval indicative of the control signal. The modulation is varied as an exponential function so as to assure more accurate reception and decoding of the intelligence by the receiver.
申请公布号 IT1017324(B) 申请公布日期 1977.07.20
申请号 IT19740025403 申请日期 1974.07.19
申请人 SONY CORP 发明人
分类号 H03M5/08;G08C19/22;G11B20/10;H03J1/22;H03J9/04;H04L25/49;H04N5/00;H04Q9/14 主分类号 H03M5/08
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