Patent ID: 6965757

Claim:
Short range radio receiver for motor vehicle data, comprising antenna means ( 1 – 4 ) connected to a unit ( 10 – 15 ) for processing a received carrier in a specific band of frequencies which is modulated by a data signal, the unit ( 10 – 15 ) comprising means ( 11 , 23 – 28 ) for frequency transposition of the carrier, which are connected to means ( 13 ) for demodulating the transposed carrier, which are arranged to supply the demodulated data, the receiver being characterised in that the antenna means ( 1 – 4 ) are arranged to receive a plurality of frequency bands, and that frequency discrimination means ( 21 , 22 ) are provided, connected to the antenna means ( 1 – 4 ), arranged to determine respective reception levels within the bands in order to compare them with each other and to control the frequency transposing means ( 11 , 23 – 28 ) depending on the result of the comparison.