发明名称 Remote control systems with ambient noise sensor
摘要 A remote control system includes a remote control transmitter that transmit a signal and a receiver than can receive the signal from the transmitter. A control device performs a function having a first and a second option. The control device responds to the signal received by the receiver and performs the first option if the distance between the remote control transmitter and the receiver is greater than a particular distance and performs a function based on the ambient noise level.
申请公布号 US6927685(B2) 申请公布日期 2005.08.09
申请号 US20040817262 申请日期 2004.04.02
申请人 WATHEN DOUGLAS L. 发明人 WATHEN DOUGLAS L.
分类号 G01S13/76;G07C9/00;(IPC1-7):H04Q7/00 主分类号 G01S13/76
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