| 摘要 |
A remote for controlling devices and communicating data to and from such devices using both IR and RF signals. The remote control may transmit a first signal to one or more devices which, in turn may each transmit a reply signal to the remote. Each reply signal typically, although not necessarily, contains an identification of the transmitting device and the signal strength of the first signal, as detected at the device. The remote may employ this information to determine which device is closest and transmit commands accordingly.
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