| 摘要 |
A tracking system including a tracking device and a tracked device. The tracking device includes a smart phone type device with a radio transceiver dongle connected to it through a USB connection. Communications from the traced device to the tracking device (for example, the transceiver in the dongle) take the following form: RF communications that do not travel over a pre-existing communication network (for example, a pre-existing internet network, a pre-existing cell phone network) and that use Multi-Use Radio Service (MURS), xbee (zigBee), FSK, OSK, ISM Band standards that provide two-way radio frequency spectrum, or any frequency available thru Federal Communications Commission (“FCC”) 47 Code of Federal Regulations (“C.F.R.”) §15, or any available frequency that is sanctioned for long distance use (e.g., 0.5 miles or more, 300 meters or more) by the appropriate governing body, rather than Bluetooth radio communications, or any other type of RF communications that can only transmit, as a practical matter under normal operating conditions, less than 300 feet.
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