| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To demodulate with one unit of a receiver even when different modulating methods are mixedly existing. <P>SOLUTION: This on-vehicle receiver is furnished with a common antenna 24 to receive a wireless signal transmitted from an RKE portable machine 11 under either one of the modulating methods of ASK and FSK and a wireless signal transmitted from TPMS transceivers 12A to D under the other modulating method, an ASK demodulating part 31 to demodulate the signal received by the common antenna part 24 in accordance with the ASK method and to judge whether a header part of a demodulating data is normal or not, an FSK demodulating part 32 parallally connected the ASK demodulating part to demodulate the signal received by the common antenna part 24 in accordance with the FSK method and to judge whether the header part of the demodulating data is normal or not and an output part 33 to output one of the demodulated data judged as normal by the ASK demodulating part 31 or the FSK demodulating part 32. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
