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A Correction Device for intermediate Frequency premoduccion nonlinearities for pre Correcting nonlinearities of a television Signal
A Correction Device for intermediate Frequency premoduccion nonlinearities for pre Correcting nonlinearities of a television Signal
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机译:用于电视信号的非线性预校正的中频预调制后非线性校正装置
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摘要
In equipment for transmitting or re-transmitting television signals comprising, in the intermediate frequency stage, group propagation time correction cells for linearizing the phase-frequency characteristic of the equipment, the non linearity correction system of the invention uses these cells while completing them with an amplitude pre-modulation control circuit and/or a frequency premodulation control circuit, for correcting amplitude and phase non linearities affecting the pole carrier frequencies of the correction cells.
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