Patent ID: 7301775

Claim:
A receiving device comprising: a multilayered substrate; a tuner section provided on one surface of said multilayered substrate; and a demodulation section provided on another surface of said multilayered substrate, wherein said tuner section extracts a particular high-frequency signal from a plurality of digitally modulated high-frequency signals, and converts the particular high-frequency signal into a low-frequency signal, said demodulation section demodulates the low-frequency signal output from said tuner section by converting it into a digital signal, and said multilayered substrate includes (i) an analog GND layer connected to said tuner section, (ii) a digital GND layer connected to said demodulation section, and (iii) a shield GND layer which is provided between said analog GND layer and digital GND layer, and which is isolated from the analog and digital GND layers by insulation layers.