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Author: search.filters.author.Teramoto, Mitsuo

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    Notch frequency adjustable active filter using uniformly distributed RC line
    (2000-12-01)
    Janchitrapongvej, Kanok
    ;
    Kawejan, Viroj
    ;
    Benjangkaprasert, Chawalit
    ;
    Tangtisanon, Prakit
    ;
    Seatia, Sorapong
    The paper describes the new notch frequency adjustable type filter using uniformly distributed RC line (hereafter is called URC) with three capacitive layers. The proposed circuit consists of one URC with three capacitive (C <inf>0</inf>, C<inf>1</inf> and C<inf>2</inf>) layers and a single gain amplifier. α<inf>1</inf>, α<inf>2</inf> of the circuits are used to adjust the notch tunable frequency and K is used to control the minimum stop band loss. The structure reduces an amount of circuit complexity and is simple to use for filter applications. Finally, The computer simulation results showed good agreement with theoretical values. Sensitivities are also carried out.
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    New bias voltage generators for TFT-LCD's drivers
    (2000-01-01)
    Hirata, Manabu
    ;
    Suzuki, Yasoji
    ;
    Yoshida, Masahiro
    ;
    Arayashiki, Yutaka
    ;
    Teramoto, Mitsuo
    New positive and negative bias voltage generators for TFT-LCD's drivers utilizing charge pump circuits are introduced. The generators can generate positive or negative voltages with various amplitude by simply changing the number of pumping stages. By using the circuit simulation program HSPICE, it is demonstrated that the introduced generators can provide enough positive or negative voltages for TFT-LCD's drivers.