| 摘要 |
A portable multimedia file player is provided to allow a pattern antenna to transmit a vehicle control command to a vehicle as well as audio data so as to reduce the player size. A portable multimedia file player comprises an input part, a receiving antenna part(124), a first transmitting antenna part(122), an audio modulation part(114), and a second transmitting antenna part(116). The receiving antenna part receives a signal from a smart key control part. The first transmitting antenna part transmits a vehicle control command and the smart key ID to the smart key control part. The second transmitting antenna part transmits the modulated audio data. The audio modulation part modulates the audio data into an FM frequency band.
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