Low noise and distortion adapter and system for providing audio output signals from the auxiliary SDARS radio to the in-vehicle AM/FM radio
First Claim
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1. A adapter for providing audio signals to car stereo through a in-dash board AM/FM radio receiver from an auxiliary SDARS radio comprising:
- an adapter audio input for receiving said audio signals from said auxiliary SDARS radio;
an adapter RF output for cable connection to said AM/FM radio antenna input;
a RF antenna adapter input for cable connection to the car AM/FM antenna;
an embedded antenna;
RF low power amplifier loaded to said embedded antenna;
RF modulator for RF signal modulation by said audio signal from said adapter audio input;
First RF switch with control from user interface to connect said RF modulator output to the said RF power amplifier input or to the said adapter RF output;
Second RF switch with control from user interface to connect said adapter RF output to said antenna RF input or to the said RF modulator output.
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Abstract
An adapter is provided link between auxiliary Satellite Digital Audio Radio Services Receiver and in-dash AM/FM car radio. The adapter proposed in this invention combines together a wireless FM communication links and a hard-wired RF link. The adapter can be easily reconfigured through user interface and implemented in two modes. The adapter structure and two modes application variety did not depend on analog or digital audio signals which have to be transmitted from SDARS receivers (Satellite Digital Audio Radio Services Receiver) to the car stereo through in-dash AM/FM radio.
20 Citations
4 Claims
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1. A adapter for providing audio signals to car stereo through a in-dash board AM/FM radio receiver from an auxiliary SDARS radio comprising:
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an adapter audio input for receiving said audio signals from said auxiliary SDARS radio;
an adapter RF output for cable connection to said AM/FM radio antenna input;
a RF antenna adapter input for cable connection to the car AM/FM antenna;
an embedded antenna;
RF low power amplifier loaded to said embedded antenna;
RF modulator for RF signal modulation by said audio signal from said adapter audio input;
First RF switch with control from user interface to connect said RF modulator output to the said RF power amplifier input or to the said adapter RF output;
Second RF switch with control from user interface to connect said adapter RF output to said antenna RF input or to the said RF modulator output. - View Dependent Claims (2, 3, 4)
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Specification