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12 条记录 (耗时 0.014 秒)

    Capacitive circuit
    2.
    发明公开
    Capacitive circuit 失效
    Kapazitive Schaltung。

    公开(公告)号：EP0521404A1

    公开(公告)日：1993-01-07

    申请号：EP92110802.3

    申请日：1992-06-26

    申请人： SANYO ELECTRIC CO., LTD.

    发明人： Honda, Fumiaki ,  Hosoya, Nobukazu

    IPC分类号： H03H11/48

    CPC分类号： H03H11/483

    摘要： A capacitive circuit (10), which is incorporated in an integrated circuit, includes a high-pass type non-inverting amplifier (12) which receives an input signal (ei) and a differential amplifier (14) which receives the input signal and an output signal (eo) of the non-inverting amplifier. A differential component between the both signals is detected by the differential amplifier and fed-back to the input signal, whereby an input impedance shows a capacitive characteristic because the input signal is phase-shifted by 90 degrees.

    摘要翻译： 集成在集成电路中的电容电路（10）包括接收输入信号（ei）的高通型非反相放大器（12）和接收输入信号的差分放大器（14），和 非反相放大器的输出信号（eo）。 两个信号之间的差分分量由差分放大器检测并反馈到输入信号，由此输入阻抗显示出电容特性，因为输入信号相移90度。

    Television receiver and television signal determination circuit
    4.
    发明公开
    Television receiver and television signal determination circuit 失效
    Fernsehempfängerund Fernsehsignalbestimmungsschaltung。

    公开(公告)号：EP0614320A3

    公开(公告)日：1994-11-02

    申请号：EP94103301.1

    申请日：1994-03-04

    申请人： SANYO ELECTRIC Co., Ltd.

    发明人： Honda, Fumiaki ,  Hosoya, Nobukazu

    IPC分类号： H04N9/64

    CPC分类号： H04N9/642

    摘要： A television signal determination circuit (10̸) is included in a color circuit. During a burst period, a color signal through a 90̸° phase-shifter (28) is subjected to frequency-phase conversion to be converted into a phase signal by an APF (14), the phase signal being applied to a phase-comparator (40̸) in which the phase signal and a color signal from a path (39) are compared with each other. An output of the phase-comparator (40̸) is applied to an LPF (42), and an output of the LPF (42) becomes a voltage signal having a level according to a phase difference of the both signals. Two voltage signals having different levels are alternately outputted at every 2H in a SECAM system, while only one voltage signal is outputted in other television systems. A rectangular-wave signal is produced from the voltage signal by a sampling/holding circuit (46), the rectangular-wave signal being phase-compared with a rectangular-wave signal delayed by 1H through a 1H delay circuit (48) in a phase-comparator (50̸). On the basis of a signal according to phase-comparison, and it is possible to determine a television system of the SECAM system or a PAL system.

    摘要翻译： 电视信号确定电路（10）包括在彩色电路中。 在突发期间，通过90°移相器（28）的彩色信号经过频率相位转换，通过APF（14）转换为相位信号，相位信号被施加到相位比较器 40），其中相位信号和来自路径（39）的颜色信号彼此进行比较。 相位比较器（40）的输出被施加到LPF（42），并且LPF（42）的输出变为具有根据两个信号的相位差的电平的电压信号。 在SECAM系统中，每2H个交替输出具有不同电平的两个电压信号，而在其它电视系统中仅输出一个电压信号。 通过采样/保持电路（46）从电压信号产生矩形波信号，该矩形波信号与通过1H延迟电路（48）延迟1H的矩形波信号进行相位比较 比较器（50）。 基于根据相位比较的信号，可以确定SECAM系统或PAL系统的电视系统。

    Television circuit utilizing color burst signal
    5.
    发明公开
    Television circuit utilizing color burst signal 失效
    利用色同步信号的电视电路。

    公开(公告)号：EP0616474A3

    公开(公告)日：1995-04-19

    申请号：EP94104102.2

    申请日：1994-03-16

    申请人： SANYO ELECTRIC Co., Ltd.

    发明人： Honda, Fumiaki ,  Hosoya, Nobukazu

    IPC分类号： H04N9/70 ,  H04N9/68

    CPC分类号： H04N11/146 ,  H04N9/68 ,  H04N9/70

    摘要： A television circuit (10̸) according to the invention includes a multiplier (12), and a voltage signal (V1) is outputted from an LPF (22) in accordance with the presence or absence of a color burst signal which is to be inputted to the multiplier (12). A rectangular-wave signal (Va) is obtained on the basis of the voltage signal (V1) through a peak holding circuit (24) and a sampling/holding circuit (42). A rectangular-wave signal (Vc) is obtained by averaging the rectangular-wave signal (Va) and a rectangular-wave signal (Vb) which is obtained by delaying the signal (Va) by a 1H delay circuit (44) by an adder (46) and a 1/2 multiplication circuit (48). On the basis of the rectangular-wave signal (Vc), a voltage signal (V3) is produced by an LPF (52) having a relatively small time constant, which is compared with a reference voltage (Vref) by a level-comparator (54), whereby a signal is outputted. The signal is used as a color killer signal for a color killer circuit, for example.

    Equivalent inductance circuit
    6.
    发明公开
    Equivalent inductance circuit 失效
    ÄquivalenteInduktionsschaltung。

    公开(公告)号：EP0513586A1

    公开(公告)日：1992-11-19

    申请号：EP92107214.6

    申请日：1992-04-28

    申请人： SANYO ELECTRIC CO., LTD.

    发明人： Honda, Fumiaki ,  Hosoya, Nobukazu

    IPC分类号： H03H11/50

    CPC分类号： H03H11/48

    摘要： An equivalent inductance circuit includes a feed-back type integration circuit and a differential amplifying circuit. An input signal applied to an input terminal is integrated by the feed-back type integration circuit and, a signal according to a difference component between an integrated output signal and the input signal is outputted by the differential amplifying circuit. By feeding the difference signal back to the input terminal, an input impedance equivalently represents an inductance characteristic. Such equivalent inductance can be changed by a current from a variable current source which supplies the current to the differential amplifying circuit and, a change of the equivalent inductance shows an inverse proportional manner.

    摘要翻译： 等效电感电路包括反馈型积分电路和差分放大电路。 通过反馈型积分电路对输入端施加的输入信号进行积分，通过差动放大电路输出根据积分输出信号与输入信号之间的差分的信号。 通过将差分信号馈送回输入端子，输入阻抗等效地表示电感特性。 这种等效电感可以通过从向差分放大电路提供电流的可变电流源的电流改变，并且等效电感的变化显示为反比例的方式。

    Television circuit utilizing color burst signal
    10.
    发明公开
    Television circuit utilizing color burst signal 失效
    Fernsehsschaltung die ein Farbsynchronsignal verwendet。

    公开(公告)号：EP0616474A2

    公开(公告)日：1994-09-21

    申请号：EP94104102.2

    申请日：1994-03-16

    申请人： SANYO ELECTRIC Co., Ltd.

    发明人： Honda, Fumiaki ,  Hosoya, Nobukazu

    IPC分类号： H04N9/70 ,  H04N9/68

    CPC分类号： H04N11/146 ,  H04N9/68 ,  H04N9/70

    摘要： A television circuit (10̸) according to the invention includes a multiplier (12), and a voltage signal (V1) is outputted from an LPF (22) in accordance with the presence or absence of a color burst signal which is to be inputted to the multiplier (12). A rectangular-wave signal (Va) is obtained on the basis of the voltage signal (V1) through a peak holding circuit (24) and a sampling/holding circuit (42). A rectangular-wave signal (Vc) is obtained by averaging the rectangular-wave signal (Va) and a rectangular-wave signal (Vb) which is obtained by delaying the signal (Va) by a 1H delay circuit (44) by an adder (46) and a 1/2 multiplication circuit (48). On the basis of the rectangular-wave signal (Vc), a voltage signal (V3) is produced by an LPF (52) having a relatively small time constant, which is compared with a reference voltage (Vref) by a level-comparator (54), whereby a signal is outputted. The signal is used as a color killer signal for a color killer circuit, for example.

    摘要翻译： 根据本发明的电视电路（10）包括乘法器（12），并且根据要输入的彩色同步信号的存在或不存在从LPF（22）输出电压信号（V1） 乘数（12）。 基于通过峰值保持电路（24）和采样/保持电路（42）的电压信号（V1）获得矩形波信号（Va）。 通过对矩形波信号（Va）和通过加法器延迟由1H延迟电路（44）将信号（Va）进行延迟而获得的矩形波信号（Vb）进行平均，获得矩形波信号（Vc） （46）和1/2乘法电路（48）。 基于矩形波信号（Vc），通过具有相对较小时间常数的LPF（52）产生电压信号（V3），其通过电平比较器（参考电压（Vref））与参考电压（Vref）进行比较 54），由此输出信号。 该信号例如用作彩色抑制电路的彩色抑制信号。