| 摘要 |
A DMB receiver having a TPMS receiving function is provided to share an antenna for receiving different bands of frequency signals between the DMB receiver and a tire pressure measuring device, thereby performing combination between the systems easily and providing the efficiency of production. A DMB(Digital Multimedia Broadcasting) receiver comprises a command antenna(201), a DMB receiving circuit(203), a TPMS(Tire Pressure Monitoring System) receiving circuit(207), a control unit(209), and a display unit(211). The command antenna receives a TPMS signal with a DMB signal and an FM(Frequency Modulation) signal. The DMB receiving circuit synchronizes a DMB signal of 170 to 220MHz received through a selected channel in response to a frequency selecting signal inputted from the command antenna and demodulates the DMB signal. The TPMS receiving circuit synchronizes a 447MHz signal of a TPMS frequency from the common antenna to demodulate the TPMS signal. The control unit extracts signals including a tire pressure, a temperature, and an angular velocity from the frequency selected by a user in the DMB receiving circuit and the TPMS receiving circuit, and controls the output of the extracted signal. The displays unit outputs the image of the DMB signal according to the control command of the control unit or displays graphic tire pressure measuring data based on the TPMS signal. |
