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    Deflection waveform correction signal generator
    1.
    发明授权
    Deflection waveform correction signal generator 失效
    偏转波形校正信号发生器

    公开(公告)号：US3984729A

    公开(公告)日：1976-10-05

    申请号：US510097

    申请日：1974-09-27

    申请人： Steven Alan Steckler ,  Alvin Reuben Balaban

    发明人： Steven Alan Steckler ,  Alvin Reuben Balaban

    IPC分类号： H04N3/16 ,  H03K6/04 ,  H04N3/23 ,  H04N3/233 ,  H01J29/70 ,  H01J29/56

    CPC分类号： H04N3/233 ,  H03K6/04

    摘要： Cascaded multipliers are coupled to a source providing a periodic sawtooth deflection waveform, the amplitude of which varies with variations in the high voltage applied to an accelerating anode of a kinescope. The sawtooth signal is cubed by the cascaded multipliers and multiplied by the inverse square of a voltage which varies with changes in the kinescope anode potential. The system thus incorporates S-correction and means for correcting the deflection waveform to compensate for changes in the high voltage supplied to the kinescope anode.

    摘要翻译： 级联乘法器耦合到提供周期性锯齿波偏转波形的源，其幅度随着施加到显像管的加速阳极的高电压的变化而变化。 锯齿波信号由级联乘法器立方，并乘以随着显像管阳极电位变化而变化的电压的反平方。 因此，该系统包括S校正和用于校正偏转波形以补偿提供给显像管阳极的高电压变化的装置。

    Receiver for analog and digital television signals
    2.
    发明授权
    Receiver for analog and digital television signals 有权
    接收机用于模拟和数字电视信号

    公开(公告)号：US06369857B1

    公开(公告)日：2002-04-09

    申请号：US09311252

    申请日：1999-05-13

    申请人： Alvin Reuben Balaban ,  Michael Louie Low ,  Edward Coley Fox

    发明人： Alvin Reuben Balaban ,  Michael Louie Low ,  Edward Coley Fox

    IPC分类号： H04N546

    CPC分类号： H04N5/4446 ,  H04N5/4401 ,  H04N5/455 ,  H04N5/46

    摘要： A receiver requiring only a single IF SAW filter and IF amplifier receives signals in both analog format and in digital format, such as the NTSC, PAL and SECAM analog television signal formats and the ATSC and DVB digital television signal formats. IF signals from the IF amplifier are sub-sampled to digital signal form and are processed by respective analog format and digital format processors. Control circuitry responsive to the presence of certain unique components of the signals in analog format and digital format determine which of the analog format and digital format processors is producing valid data and selects the valid data to be utilized. In a television receiver, the unique components of the signals may include carrier signals, synchronization signals, pilot signals and symbol timing, and valid data is applied to a television display.

    摘要翻译： 仅需要单个IF SAW滤波器和IF放大器的接收器以模拟格式和数字格式接收信号，例如NTSC，PAL和SECAM模拟电视信号格式以及ATSC和DVB数字电视信号格式。 来自IF放大器的IF信号被子采样到数字信号形式，并由相应的模拟格式和数字格式处理器处理。 响应于模拟格式和数字格式的信号的某些独特组件的存在的控制电路确定模拟格式和数字格式处理器中的哪一个正在产生有效数据并选择要使用的有效数据。 在电视接收机中，信号的唯一分量可以包括载波信号，同步信号，导频信号和符号定时，有效数据被应用于电视显示器。

    Digital automatic gain control, as for a receiver
    3.
    发明授权
    Digital automatic gain control, as for a receiver 有权
    数字自动增益控制，如接收机

    公开(公告)号：US06459458B1

    公开(公告)日：2002-10-01

    申请号：US09333402

    申请日：1999-06-15

    申请人： Alvin Reuben Balaban

    发明人： Alvin Reuben Balaban

    IPC分类号： H04N552

    CPC分类号： H04N5/4446 ,  H04N5/4401 ,  H04N5/455 ,  H04N5/46

    摘要： A digital AGC arrangement is responsive to the absolute value of a digital signal whose amplitude is to be gain controlled to generate an error signal. The digital value of the error signal is converted to an analog signal by a high-gain digital element such as a pulse width modulator or a comparator controlling a current source. The output thereof is filtered and applied to the gain control input of an amplifier whose gain is to be controlled thereby. This AGC is useful, for example, in a television receiver that includes an RF tuner, IF SAW filter and IF amplifier to receive television signals in both analog format, such as the NTSC, PAL and SECAM formats, and in digital format, such as the ATSC and DVB formats. IF signals from the IF amplifier are sub-sampled to digital signal form and are utilized for AGC, in addition to being processed by respective analog format and digital format processors.

    摘要翻译： 数字AGC装置响应于其幅度被增益控制以产生误差信号的数字信号的绝对值。 误差信号的数字值由诸如脉冲宽度调制器的高增益数字元件或控制电流源的比较器转换为模拟信号。 其输出被滤波并施加到其增益被控制的放大器的增益控制输入。 该AGC例如在包括RF调谐器，IF SAW滤波器和IF放大器的电视接收机中是有用的，以接收诸如NTSC，PAL和SECAM格式的两种模拟格式的电视信号，并且以数字格式，诸如 ATSC和DVB格式。 来自IF放大器的IF信号被副采样到数字信号形式，并且除了被相应的模拟格式和数字格式处理器处理外，还被用于AGC。