| 摘要 |
A simplified apparatus for positively preventing the use of mobile personal communication devices by the operator of a vehicle in "hand held" mode, and permitting use of such devices in "handsfree" mode. The apparatus includes a signal jammer operable to block at least one of the incoming and outgoing signals associated with the personal mobile communication device; a power supply associated with the signal jammer; a motion responsive sensor in the vehicle, which is configured to activate the signal jammer while the vehicle is in motion; and a pairing signal detector, which is configured to de-activate the signal jammer while a handsfree pairing signal is present. |
