Pulse producing circuit
    1.
    发明授权
    Pulse producing circuit 失效
    脉冲生产电路

    公开(公告)号:US3654495A

    公开(公告)日:1972-04-04

    申请号:US3654495D

    申请日:1971-03-29

    Applicant: SONY CORP

    CPC classification number: H04N9/455

    Abstract: A transistor circuit for producing delayed pulses includes a transistor normally biased to conduct. An incoming pulse increases conductivity and charges an RC circuit to change the bias condition. The trailing edge of the incoming pulse drives the transistor to cut-off to form the leading edge of the delayed pulse. The lagging edge of the delayed pulse occurs when the RC circuit discharges enough to allow the transistor to return to normal conductivity.

    Abstract translation: 用于产生延迟脉冲的晶体管电路包括通常被偏置以导通的晶体管。 输入脉冲增加电导率并对RC电路充电以改变偏置条件。 输入脉冲的后沿驱动晶体管截止以形成延迟脉冲的前沿。 当RC电路放电足够使晶体管恢复正常导通时,发生延迟脉冲的滞后沿。

    Magnetic recording and/or reproducing system
    2.
    发明授权
    Magnetic recording and/or reproducing system 失效
    磁记录和/或再现系统

    公开(公告)号:US3925810A

    公开(公告)日:1975-12-09

    申请号:US54269775

    申请日:1975-01-21

    Applicant: SONY CORP

    CPC classification number: H04N9/84

    Abstract: In reducing crosstalk between the low frequency, frequencyconverted chrominance portions of h-aligned video signals on adjacent tracks, the frequency converting carrier, but not the entire frequency converted portion, has its polarity inverted at the end of each line interval during the recording of alternate tracks but not during the recording of the remaining alternate tracks. This eliminates the extraneous signal that would otherwise be produced in the balanced modulator of the playback apparatus by any direct voltage offset or transient remanent of a direct voltage offset in the recorded signal.

    Abstract translation: 在减少相邻轨道上的h取向视频信号的低频,频率转换色度部分之间的串扰时,频率转换载波而不是整个频率转换部分在记录期间在每行间隔结束处具有其极性反转 的备用轨道,但不是在记录剩余的备用轨道期间。 这消除了在记录信号中的直接电压偏移或直接电压偏移的任何直接电压偏移或瞬态残留的情况下,再现设备的平衡调制器中产生的外来信号。

    Balanced modulator circuit
    3.
    发明授权
    Balanced modulator circuit 失效
    平衡调制电路

    公开(公告)号:US3887886A

    公开(公告)日:1975-06-03

    申请号:US42813673

    申请日:1973-12-26

    Applicant: SONY CORP

    CPC classification number: H03C1/545 H03C2200/0012 H03C2200/0079

    Abstract: A balanced modulator circuit is provided with first and second differential amplifiers having a pair of inputs and a pair of outputs, respectively. A first input signal is supplied to the pair of inputs of the first and second differential amplifiers, respectively, to drive each of the differential amplifiers differentially and a second input signal is coupled to each pair of inputs in the same phase. The signal coupled to one pair of inputs for the first differential amplifier is the reverse phase with respect to the signal coupled to the pair of inputs of the second differential amplifier. As a result, the product signal of the first and second input signals will be obtained from the output terminals, the pair of outputs of the first and second differential amplifiers being connected to each other.

    Abstract translation: 平衡调制器电路分别具有一对输入和一对输出的第一和第二差分放大器。 分别将第一输入信号提供给第一和第二差分放大器的对输入,以差分地驱动每个差分放大器,并且在同一相位中将第二输入信号耦合到每对输入。 耦合到第一差分放大器的一对输入的信号是相对于耦合到第二差分放大器的一对输入的信号的反相。 结果,第一和第二输入信号的乘积信号将从输出端获得,第一和第二差分放大器的一对输出相互连接。

    Color synchronization control circuit with generation of color killer signal
    4.
    发明授权
    Color synchronization control circuit with generation of color killer signal 失效
    彩色同步信号的同步控制电路

    公开(公告)号:US3860954A

    公开(公告)日:1975-01-14

    申请号:US32347373

    申请日:1973-01-15

    Applicant: SONY CORP

    Inventor: TSUCHIYA TAKAO

    CPC classification number: H03L7/08 H03L7/085 H04N9/455 H04N9/70

    Abstract: An automatic phase-control circuit for a reference sub-carrier oscillator of color television receivers, which includes a phase comparing means for comparing a phase of output of the reference sub-carrier oscillator with a phase of a burst signal in a color television signal received by the receiver to control the reference sub-carrier oscillator in synchronism with the burst signal with the phase-compared output. A peak-detector means is provided to detect a peak voltage value of the output of the phase comparing means to produce a direct voltage in response to that value, so that a control signal sufficient for stable and effective control of the reference sub-carrier oscillator is obtained.

    Abstract translation: 一种用于彩色电视接收机的参考子载波振荡器的自动相位控制电路,其包括相位比较装置,用于将参考副载波振荡器的输出相位与接收到的彩色电视信号中的脉冲串信号的相位进行比较 由接收机与相位比较输出的脉冲串信号同步地控制参考子载波振荡器。 提供峰值检测器装置以检测相位比较装置的输出的峰值电压值,以产生响应于该值的直流电压,使得足以稳定和有效地控制参考子载波振荡器的控制信号 获得。

    BUCKET BRIGADED DEVICE
    6.
    发明专利

    公开(公告)号:AU533397B2

    公开(公告)日:1983-11-24

    申请号:AU6478280

    申请日:1980-11-27

    Applicant: SONY CORP

    Abstract: A bucket brigaded device is provided which includes first and second clocking signal generators for generating a first set and a second set of clocking signals respectively, a plurality of successive capacitors for sequentially holding charge level representing an input signal, and a plurality of transistors for controlling the transfer of charge levels from one capacitor to another. Each of the transistors is connected between adjacent capacitors. The bucket brigaded device further comprises a first clocking signal driver for supplying one of the first set of clocking signals to each capacitor, and a second clocking signal driver for supplying one of the second set of clocking signals to each transistor.

    PICTURE QUALITY ADJUSTING CIRCUIT

    公开(公告)号:GB2104342A

    公开(公告)日:1983-03-02

    申请号:GB8224672

    申请日:1981-12-25

    Applicant: SONY CORP

    Abstract: PCT No. PCT/JP81/00408 Sec. 371 Date Aug. 24, 1982 Sec. 102(e) Date Aug. 24, 1982 PCT Filed Dec. 25, 1981 PCT Pub. No. WO82/02312 PCT Pub. Date Jul. 8, 1982.In order to improve picture quality, an input video signal is added to a correcting signal which is formed by the secondary differentiation of the input video signal. White peak current is reduced so that white blur is avoided without adversely affecting the picture quality on the black side.

    8.
    发明专利
    未知

    公开(公告)号:DE3000933A1

    公开(公告)日:1980-07-24

    申请号:DE3000933

    申请日:1980-01-11

    Applicant: SONY CORP

    Abstract: A filter circuit of the type utilizing a charge-transfer device, such as a bucket brigade device, comprises a clocking signal drive circuit for supplying a clocking signal; a clock signal generator at whose output a clocking control signal is provided; a transistor whose base is connected to the output of the clock signal generator; a plurality of successive capacitive storage stages for sequentially holding a charge level representing a time-sampled input signal, each of the capacitive storage stages having a clocking electrode for receiving the clocking signal so that the charge level is transferred from one to another of the capacitive storage stages in succession, and at least one of the capacitive storage stages being formed of first and second parallel-connected capacitive circuit portions, and the first and second capacitive circuit portions having respective clocking electrodes coupled to the clock signal generator and to the emitter of the transistor, respectively; and a current feedback circuit, such as a current mirror circuit, for detecting the current flowing through the collector of the transistor and applying a corresponding current to a capacitive storage stage in advance of that stage which is coupled to the emitter of the transistor.

    A.C.C. DETECTOR CIRCUIT
    9.
    发明专利

    公开(公告)号:AU3589078A

    公开(公告)日:1979-11-15

    申请号:AU3589078

    申请日:1978-05-08

    Applicant: SONY CORP

    Abstract: A detector circuit for a color television receiver includes a pair of transistors whose collector-emitter circuits are connected in parallel with each other, an input circuit, such as a differential amplifier, for supplying a differential input signal to the base electrodes of the pair of transistors, an impedance element coupled between the collector electrodes of the pair of transistors and a voltage source, and an integration circuit for integrating a detected signal taken from the collector electrodes of the pair of transistors and thereby providing an output signal. A reference-voltage circuit is included to supply a reference voltage, which can be used as a threshold voltage, to the emitter electrodes of the pair of transistors. The detector circuit is advantageously used in the color demodulating circuit of a color television receiver, wherein an oscillator controlled by color burst signals supplies the input signal to the detector circuit, and the output thereof is used to control the gain of an ACC amplifier.

    10.
    发明专利
    未知

    公开(公告)号:DE2854893A1

    公开(公告)日:1979-06-21

    申请号:DE2854893

    申请日:1978-12-19

    Applicant: SONY CORP

    Abstract: For improving the frequency characteristic of a color television signal, particularly one in which the chrominance component thereof is provided with a bandwidth substantially narrower than that of the luminance component, the luminance component is used to generate a control signal which is proportional to the lack of registration between low and high frequency portions of the luminance component spectrum, and the control signal thus obtained selectively increases and decreases a delay applied to the relatively narrow-bandwidth chrominance component to substantially align its excursions with the excursions of the relatively wide bandwidth luminance component.

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