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US 9,755,772 B1Granted
Vehicle communication system for receiving frequency modulation and digital audio broadcast radio frequency bands
AssigneeGM Global Technology Operations LLC
InventorsNahel Eshaq, David S. Cheney, Runhong Deng
Life of this patent
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Abstract
An antenna system for a vehicle that includes at least one radio frequency (RF) antenna that receives both a digital audio broadcasting (DAB) RF broadcast and a frequency modulation (FM) RF broadcast. A single amplifier coupled to one or more antennas is used to process both the DAB and FM broadcasts.
Claims8
An antenna system for a vehicle, comprising:
- at least one radio frequency (RF) antenna;
- and
- an amplifier coupled to the antenna, wherein the amplifier is adapted to amplify a digital audio broadcasting (DAB) RF band and a frequency modulation (FM) RF band;
- wherein the amplifier comprises a first matching circuit and a second matching circuit, each of the matching circuits being associated with one of the DAB RF band or the FM RF band;
- and
- wherein amplifier comprises a single output via the second matching circuit.
3 more elements
An antenna system for a vehicle, comprising:
- at least one radio frequency (RF) antenna;
- an amplifier coupled to the antenna, wherein the amplifier is adapted to amplify a digital audio broadcasting (DAB) RF band and a frequency modulation (FM) RF band;
- wherein the amplifier comprises a first matching circuit and a second matching circuit, each of the matching circuits being associated with one of the DAB RF band or the FM RF band;
- and
- an RF input circuit, a biasing circuit, and a voltage regulator circuit, wherein the RF input circuit, the first matching circuit, the biasing circuit, and the second matching circuit are coupled to one another in series, wherein the voltage regulator circuit is coupled to the biasing circuit and an output of the second matching circuit.
2 more elements
A communication system for a vehicle, comprising:
- an antenna system that includes an antenna and a low noise amplifier (LNA), wherein the LNA is configured to amplify a digital audio broadcasting (DAB) radio frequency (RF) band and a frequency modulation (FM) RF band;
- a vehicle infotainment system (VIS);
- and
- a communication connection coupling the antenna system and the VIS,
- wherein the VIS is adapted to receive amplified electrical signals associated with RF transmissions in the DAB and FM RF bands thereafter provide vehicle audio based on the received electrical signals;
- wherein the LNA comprises a first matching circuit and a second matching circuit, each of the matching circuits being associated with one of the DAB RF band or the FM RF band;
- and
- wherein LNA comprises a single output via the second matching circuit.
5 more elements
Dependencies are inferred from the claim text.