Patent ID: 6108050
Filing Date: 2000-08-22
Classification: H03J,H04N

Abstract:
A television tuner comprising:a VHF low-band tuning circuit which can be tuned to a television channel frequency in a VHF low-band;a first amplification circuit amplifying an output signal from said VHF low-band tuning circuit;a VHF high-band tuning circuit which can be tuned to a television channel frequency in a VHF high-band and which is provided independently from said VHF low-band tuning circuit;a second amplification circuit amplifying an output signal from said VHF high-band tuning circuit;a first damper resistor connected to said VHF low-band tuning circuit; anda second damper resistor connected to said VHF high-band tuning circuit;wherein;when said VHF low-band tuning circuit is tuned to a television channel frequency in a predetermined low-frequency band in said VHF low-band, including a lowest channel in said predetermined high-frequency band of said VHF low-band tuning circuit, said first damper resistor reduces a Q value of said VHF low-band tuning circuit; andwhen said VHF high-band tuning circuit is tuned to a television channel frequency in a predetermined high-frequency band in said VHF high band, including a lowest channel in said predetermined high-frequency band of said VHF high-band tuning circuit, said second damper resistor reduces a Q value of said VHF high-band tuning circuit.