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65 条记录 (耗时 0.027 秒)

    Method and circuit for regenerating a binary bit stream from a ternary signal
    43.
    发明授权
    Method and circuit for regenerating a binary bit stream from a ternary signal 失效
    用于从三进制信号再生二进制比特流的方法和电路

    公开(公告)号：US5367535A

    公开(公告)日：1994-11-22

    申请号：US840053

    申请日：1992-02-21

    申请人： Werner Scholz

    发明人： Werner Scholz

    IPC分类号： G11B20/10 ,  G11B20/14 ,  H04L25/06 ,  H04L25/34

    CPC分类号： G11B20/1492 ,  G11B20/10009 ,  H04L25/063

    摘要： A circuit for developing a binary bitstream signal from a ternary analog signal having positive and negative amplitude peaks includes an analog-to-digital converter for receiving the analog signal and providing digital samples in accordance with the amplitude and polarity of the analog signal. The most significant bit of digital sample indicates the polarity of an analog signal sample. A threshold value is compared to a current amplitude sample to indicate a level change in the analog signal when the sample value exceeds the threshold value and the polarity differs from that of the preceding sample which exceeded the threshold value. The current sample value which exceeds the threshold value is compared with preceding sample values which exceeded the threshold value, and a level change is indicated by the sample value which most exceeds the threshold value. Incorrect sample values are inverted in a correction circuit.

    摘要翻译： 用于从具有正和负振幅峰值的三进制模拟信号开发二进制位流信号的电路包括用于接收模拟信号并根据模拟信号的幅度和极性提供数字采样的模数转换器。 数字采样的最高有效位表示模拟信号采样的极性。 将阈值与当前幅度采样进行比较，以在采样值超过阈值时指示模拟信号的电平变化，并且极性与超过阈值的前一个采样的极性不同。 将超过阈值的当前采样值与超过阈值的先前采样值进行比较，并且通过最大超过阈值的采样值来指示电平变化。 错误的采样值在校正电路中反转。

    Synchronizing pattern
    44.
    发明授权
    Synchronizing pattern 失效
    同步模式

    公开(公告)号：US4773084A

    公开(公告)日：1988-09-20

    申请号：US830689

    申请日：1986-02-18

    申请人： Werner Scholz

    发明人： Werner Scholz

    IPC分类号： H04L7/00 ,  H04L7/06 ,  H04L7/08 ,  H04L25/48 ,  H04L25/49 ,  H04L7/04

    CPC分类号： H04L7/06 ,  H04L25/4904

    摘要： For the transmission of synchronizing information for a PCM signal transmitted in biphase code, a synchronizing pattern is provided which is composed of a biphase signal that has been shifted by one-half bit period relative to the data portion of the transmitted signal.

    摘要翻译： 为了发送用于以双相码发送的PCM信号的同步信息，提供了同步模式，该同步模式由相对于发送信号的数据部分偏移了半个周期的双相信号组成。

    Control voltage generator for a system for dynamic compression or expansion
    46.
    发明授权
    Control voltage generator for a system for dynamic compression or expansion 失效
    用于动态压缩或扩展的系统的控制电压发生器

    公开(公告)号：US4319205A

    公开(公告)日：1982-03-09

    申请号：US121722

    申请日：1980-02-15

    申请人： Werner Scholz

    发明人： Werner Scholz

    IPC分类号： H03G7/00 ,  H03G9/02 ,  H04B1/64

    CPC分类号： H03G9/025 ,  H03G7/002

    摘要： A control voltage generator is described for a system for dynamic compression and/or expansion. The voltage generator has a series circuit consisting of a first controllable amplifier and a first rectifying circuit and a further controllable amplifier in the intelligence signal path. For effecting a rapid matching of the control voltage when the input signal suddenly increases in amplitude a further rectifying circuit is provided. The input of the further rectifying circuit is connected to the signal path before the first controllable amplifier and the output to the output of the first rectifying circuit.

    摘要翻译： 描述了用于动态压缩和/或扩展的系统的控制电压发生器。 电压发生器具有由智能信号路径中的第一可控放大器和第一整流电路和另外可控放大器组成的串联电路。 为了在输入信号的振幅突然增加时实现控制电压的快速匹配，提供了另外的整流电路。 另外的整流电路的输入端连接到第一可控放大器之前的信号路径，并输出到第一整流电路的输出端。

    Circuit for reducing drop-out errors in a video signal derived from a recording device
    47.
    发明授权
    Circuit for reducing drop-out errors in a video signal derived from a recording device 失效
    用于减少从记录装置导出的视频信号中的丢失误差的电路

    公开(公告)号：US4293869A

    公开(公告)日：1981-10-06

    申请号：US41623

    申请日：1979-05-23

    申请人： Werner Scholz

    发明人： Werner Scholz

    IPC分类号： H04N5/94 ,  G11B20/06 ,  H04N9/88 ,  H04N9/893 ,  H04N5/76 ,  H04N5/795

    CPC分类号： H04N9/88 ,  H04N9/893

    摘要： A device for producing a switching pulse used to compensate for dropout in a video signal received from a recording apparatus and for compensation of time error in the video signal, comprising, a manipulated variable producing device within the recording apparatus, a transit time section having an input connected to the recording apparatus for receiving the video signal produced thereby and the manipulated variable and a dropout recognition device having an input connected to the recording apparatus for receiving the video signal and an output connected to the input of the transit time section. The dropout recognition device produces a flag signal which corresponds to a dropout which may occur in the video signal. The output of the dropout recognition means containing the flag signal is connected to a first switching device which, in turn, is connected to the input of the transit time section for forming a marking pulse which has the duration of the flag signal in the video signal. A second switching device is connected at the output of the transit time section for sensing the marking pulse and producing the switching pulse which is time-corrected and used for impressing an equivalent voltage in the video signal to replace the dropout therein.

    摘要翻译： 一种用于产生用于补偿从记录装置接收的视频信号中的压差并用于补偿视频信号中的时间误差的开关脉冲的装置，包括：记录装置内的操作变量产生装置，具有 输入连接到记录装置，用于接收由此产生的视频信号和操作变量，以及具有连接到用于接收视频信号的记录装置的输入的输出识别装置和连接到通行时间部分的输入的输出。 压差识别装置产生对应于可能在视频信号中出现的压差的标志信号。 包含标志信号的压差识别装置的输出连接到第一开关装置，该第一开关装置又连接到通行时间部分的输入端，用于形成具有视频信号中的标志信号持续时间的标记脉冲 。 第二开关装置连接在通行时间部分的输出处，用于感测标记脉冲并产生经时间校正并用于在视频信号中施加等效电压的开关脉冲以替代其中的压差。

    Trilinear sequential transmission system for a color television signal, particularly for a recording
    48.
    发明授权
    Trilinear sequential transmission system for a color television signal, particularly for a recording 失效
    用于彩色电视信号的三线性顺序传输系统，特别用于记录

    公开(公告)号：US4183043A

    公开(公告)日：1980-01-08

    申请号：US780414

    申请日：1977-03-23

    申请人： Gerald Dickopp ,  Gerhard Mahler ,  Werner Scholz

    发明人： Gerald Dickopp ,  Gerhard Mahler ,  Werner Scholz

    IPC分类号： H04N11/22 ,  H04N9/86 ,  H04N11/08 ,  H04N11/24 ,  H04N9/42

    CPC分类号： H04N9/86

    摘要： The disclosure is an improvement in a three-line sequential transmission system for a color television signal, particularly for recording, and where the sequential signal is transformed again, during reproduction with a series-connection of line delay lines, into three simultaneous color signals, and a luminance signal is obtained by composing the signals from several successive lines. In accordance with the disclosure, the luminance signal has an amplitude ratio between these signals, to increase the picture sharpness in the vertical direction, such that the amount of the luminance transmission function of the entire system, including recording and reproduction, at the frequencies (n+1/2)f.sub.H is substantially equal to those of the frequencies n.multidot.f.sub.H where n=0, 1, 2 . . . and f.sub.H is the line frequency. The composition is effected such that zeros appear in the low frequency range of the transmission function at the frequencies (n.+-.1/3)f.sub.H, and the zeros of the entire system are multiple even-numbered zeros, with the transmission functions of both the recording and the reproduction having a zero. A differential signal, derived from the undelayed signal and the signal delayed by three lines, is fed to the luminance signal in a reproduction circuit.

    摘要翻译： 本发明是用于彩色电视信号的三线顺序传输系统的改进，特别是用于记录，并且其中顺序信号在再现期间通过线路延迟线的串联连接被再次变换成三个同时的颜色信号， 并且通过组合来自几条连续线的信号获得亮度信号。 根据本公开，亮度信号具有这些信号之间的幅度比，以提高垂直方向上的图像清晰度，使得包括记录和再现的整个系统的亮度传递功能的量在频率 n + 1/2）fH基本上等于n×fH的频率，其中n = 0,1,2。 。 。 fH是线路频率。 实现组合使得零在频率（n +/- 1/3）fH处出现在传输功能的低频范围内，并且整个系统的零是多个偶数零的，其两者的传输函数 记录和再现具有零。 来自未延迟信号的差分信号和延迟三行的信号在再现电路中被馈送到亮度信号。

    Dropout detecting circuitry for a frequency modulated carrier, particularly for a video recorder
    49.
    发明授权
    Dropout detecting circuitry for a frequency modulated carrier, particularly for a video recorder 失效
    用于频率调制载波的压差检测电路，特别是用于录像机

    公开(公告)号：US4157567A

    公开(公告)日：1979-06-05

    申请号：US828089

    申请日：1977-08-26

    申请人： Werner Scholz

    发明人： Werner Scholz

    IPC分类号： G11B20/06 ,  H04B1/10 ,  H04N5/94 ,  H04N5/76

    CPC分类号： H04N5/94

    摘要： The carrier is modulated over a definite frequency deviation range and is demodulated in an FM detector whose output voltage is used in an evaluation circuit to produce a switching pulse representing the dropout. The FM detector is constituted by a demodulator providing a digital output signal having a first value "1" within the deviation range and a second value "0" outside the deviation range. An evaluation circuit is connected to the demodulator and produces the switching pulse responsive to only the second value "O". The demodulator includes an retriggerable monoflop and an edge-triggered D flip-flop, and the FM carrier is supplied to the control input of the retriggerable monoflop and to a first control input of the edge-triggered D flip-flop. One output of the monoflop is connected to a second control input of the D flip-flop and the switching pulse is provided at one of the outputs of the D flip-flop. Two such demodulators may be used, and have unequal pulse durations at the outputs of the respective monoflops and have their outputs connected to the inputs of an AND stage whose output voltage serves as the switching pulse.

    摘要翻译： 载波在一定频率偏差范围内进行调制，并在FM检波器中解调，其输出电压用于评估电路以产生代表该丢失的切换脉冲。 FM检测器由解调器构成，该解调器在偏差范围内提供具有第一值“1”的数字输出信号，并且在偏离范围之外提供第二值“0”。 评估电路连接到解调器，并且仅响应于第二值“O”产生开关脉冲。 解调器包括可再触发单声道和边沿触发D触发器，并且FM载波被提供给可再触发单声道的控制输入和边沿触发D触发器的第一控制输入。 单路开关的一个输出端连接到D触发器的第二控制输入，并且在D触发器的输出之一处提供开关脉冲。 可以使用两个这样的解调器，并且在各个单声道的输出处具有不相等的脉冲持续时间，并且其输出连接到输出电压用作开关脉冲的AND级的输入。