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    INTERMEDIATE FREQUENCY DISCRIMINATORS
    1.
    发明专利
    INTERMEDIATE FREQUENCY DISCRIMINATORS 未知

    公开(公告)号：GB2192762B

    公开(公告)日：1989-12-20

    申请号：GB8714907

    申请日：1987-06-25

    Applicant: SONY CORP

    Inventor： OGAWA MASUMI

    IPC: H04N5/62 ,  H04N5/46 ,  H04N5/60

    Abstract: A discriminator for a plurality of sound intermediate frequencies which are different from each other includes a plurality of selectively operable resonance circuits each of which is formed of a winding of a respective fixed inductance value and a capacitor of a fixed capacitance value, and any deviation of the tuned frequency of a selected resonance circuit is corrected by a variable reactance element which is common to all of the resonance circuits, to thereby remove the necessity of individual adjustments, simplify the circuit configuration, and decrease the cost thereof.

    MULTI-STANDARD SOUND IF DISCRIMINATOR
    3.
    发明专利
    MULTI-STANDARD SOUND IF DISCRIMINATOR 未知

    公开(公告)号：AU599673B2

    公开(公告)日：1990-07-26

    申请号：AU7500887

    申请日：1987-07-01

    Applicant: SONY CORP

    Inventor： OGAWA MASUMI

    IPC: H04N5/62 ,  H04N5/46 ,  H04N5/60 ,  H03J7/08

    Abstract: A discriminator for a plurality of sound intermediate frequencies which are different from each other includes a plurality of selectively operable resonance circuits each of which is formed of a winding of a respective fixed inductance value and a capacitor of a fixed capacitance value, and any deviation of the tuned frequency of a selected resonance circuit is corrected by a variable reactance element which is common to all of the resonance circuits, to thereby remove the necessity of individual adjustments, simplify the circuit configuration, and decrease the cost thereof.

    INTERMEDIATE FREQUENCY DISCRIMINATORS
    4.
    发明专利
    INTERMEDIATE FREQUENCY DISCRIMINATORS 未知

    公开(公告)号：GB2192762A

    公开(公告)日：1988-01-20

    申请号：GB8714907

    申请日：1987-06-25

    Applicant: SONY CORP

    Inventor： OGAWA MASUMI

    IPC: H04N5/62 ,  H04N5/46 ,  H04N5/60 ,  H03J7/08 ,  H03J5/24 ,  H04N5/50

    Abstract: A discriminator for a plurality of sound intermediate frequencies which are different from each other includes a plurality of selectively operable resonance circuits each of which is formed of a winding of a respective fixed inductance value and a capacitor of a fixed capacitance value, and any deviation of the tuned frequency of a selected resonance circuit is corrected by a variable reactance element which is common to all of the resonance circuits, to thereby remove the necessity of individual adjustments, simplify the circuit configuration, and decrease the cost thereof.

    7.
    发明专利
    未知

    公开(公告)号：DE3721782A1

    公开(公告)日：1988-01-07

    申请号：DE3721782

    申请日：1987-07-01

    Applicant: SONY CORP

    Inventor： OGAWA MASUMI

    IPC: H04N5/62 ,  H04N5/46 ,  H04N5/60

    Abstract: A discriminator for a plurality of sound intermediate frequencies which are different from each other includes a plurality of selectively operable resonance circuits each of which is formed of a winding of a respective fixed inductance value and a capacitor of a fixed capacitance value, and any deviation of the tuned frequency of a selected resonance circuit is corrected by a variable reactance element which is common to all of the resonance circuits, to thereby remove the necessity of individual adjustments, simplify the circuit configuration, and decrease the cost thereof.

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