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PROCESS AND ARRANGEMENT FOR THE CODING OF MODULATED SIGNS ACCORDING TO THE PULSE AMPLITUDES IN SIGNALS ACCORDING TO THE PULSE CODE ACCORDING TO A CHARACTERISTIC CHARACTERISTIC LINE APPROXIMATELY LOGARITHMATIC
PROCESS AND ARRANGEMENT FOR THE CODING OF MODULATED SIGNS ACCORDING TO THE PULSE AMPLITUDES IN SIGNALS ACCORDING TO THE PULSE CODE ACCORDING TO A CHARACTERISTIC CHARACTERISTIC LINE APPROXIMATELY LOGARITHMATIC
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机译:按照脉冲特征码近似近似对数的特征码,按照脉冲编码在信号中按照脉冲幅度编码调制符号的过程和安排
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摘要
A process, and a device for carrying out the process, is provided for coding pulse-amplitude modulated signals into PCM signals in accordance with an approximated logarithmic characteristic curve. In the process, a partial coding characteristic curve which possesses a substantially reduced dynamic scope is first produced in a known manner. In accordance with the invention, a second pre-decision is carried out which subdivides the dynamic region of the partial coding characteristic curve into two sub-regions in such a manner that the coding of the lower and upper sub-regions is effected with the same number of weighting steps. This saves one weighting step with respect to prior processes.
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