Television tuning apparatus capable as serving selectively as a

Details Television tuning apparatus capable as serving selectively as a Television tuning apparatus capable as serving selectively as a

1990-06-07

1991-01-01

Strecker, Gerard R.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

455190, 3581911, H04B 1116

Patent

active

049824449

ABSTRACT:
A television tuner combining a UHF tuner and a VHF tuner employs a single mixer circuit such that a signal amplified by a UHF amplifier circuit or a VHF amplifier circuit is selectively inputted through a switching diode to this mixer circuit where it is mixed with a local oscillator signal from a UHF or VHF local oscillator circuit and converted into an intermediate frequency signal.

REFERENCES:
patent: 4322856 (1982-03-01), Ohta et al.
patent: 4633188 (1986-12-01), Matsuta

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