摘要:
A distortion-compensation method for a signal (S) that is transmitted in the blanking intervals of a video signal (CVBS) uses the received signal (S) to determine whether the signal (S) is subject to interference of a specific type. This interference is at least partially compensated for only when a specific limit value is exceeded. A separation stage according to the invention has a measurement apparatus (M) for detecting the presence of the specific type of interference.
摘要:
The invention relates to a clock generator comprised of a system clock input (2) for applying a high-frequency system clock signal, of a digital input (3) for applying a settable digital increment value, of an adder (6) for adding the increment value with the feedback digital cumulative value of the adder, of an output register (13) for outputting the highest-order data bit of the digital cumulative value as an output clock signal of the clock generator (1) over an output clock line, and of a digital phase deviation calculating unit (30) for calculating the phase deviation of the output clock signal according to the remaining low-order data bits of the digital cumulative value and of the digital increment value, whereby the phase deviation is output as a digital phase deviation value to a digital data output (29).
摘要:
In order to generate a clock signal (fT1) that is coupled to a reference signal (FBAS), especially to an analog video signal, a free-running clock pulse (fT1) is generated from a high-frequency clock pulse (f0) and the reference signal (FBAS) is digitized therewith. In addition, a second clock pulse (fT1) is generated from the high-frequency clock pulse (f0) and the phase deviation between the first clock pulse (fT2) and the second clock pulse (fT1) is determined. The digitized sampling values of the reference signal (FBAS) at the first clock frequency (fT1) are converted, according to the phase deviation determined, into corresponding digitized sampling values having the second clock frequency (fT1) and are used as a target specification for generating the second clock pulse (fT1) thus coupled to the reference signal.
摘要翻译:为了产生耦合到参考信号(FBAS),特别是模拟视频信号的时钟信号(f SUB T1),自由运行的时钟脉冲(f T1 / SUB>)从高频时钟脉冲(f0> 0)产生,并且参考信号(FBAS)被数字化。 此外,从高频时钟脉冲(f <0> 0)产生第二时钟脉冲(f SUB T1)和第一时钟脉冲之间的相位偏差(f < SUB> T2 <&gt;),并且确定第二时钟脉冲(f SUB T1)。 根据所确定的相位偏差将第一时钟频率(f T1 T1)处的参考信号(FBAS)的数字化采样值转换成具有第二时钟频率(f < SUB> T1 SUB>),并且用作用于产生由此耦合到参考信号的第二时钟脉冲(f T1 T1)的目标规范。