Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent
1979-02-01
1980-07-22
Bookbinder, Marc E.
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
361402, 361422, 455180, H04B 126
Patent
active
042142121
ABSTRACT:
A tuning device for a television receiver in which the electrical components are largely formed by thick film deposition techniques on a ceramic support plate. The tuning device includes a frequency converter which acts to convert the input frequency to the intermediate frequency of the receiver and which is fed by preceding filters and converter circuits only with UHF signals regardless of whether the receive is tuned to the VHF or the UHF wave band. This is achieved by means of high- and low-pass filters and a further converter circuit which converts VHF signals to UHF when energized to do so by an oscillator which is controlled to operate only when the VHF wave band is selected.
REFERENCES:
patent: 3354397 (1967-11-01), Wittig
patent: 3555430 (1971-01-01), Fischer et al.
patent: 3624554 (1971-11-01), Hilliker et al.
patent: 3659205 (1972-04-01), Cooke et al.
patent: 3727140 (1973-04-01), Nieto et al.
patent: 3794924 (1974-02-01), Furuya et al.
patent: 3813602 (1974-05-01), Van Dijum et al.
patent: 3818349 (1974-06-01), Ma
patent: 3821610 (1974-06-01), Harcombe
Bookbinder Marc E.
Indesit Industria Elettrodomestici Italiana S.p.A.
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