U.S. Philips Corporation

Wilhelmus J Kitzen

Mathias H Geelen

An electric signal converter utilizes a processing unit to establish a polynomial of n terms, each term being a power of the signal at the input terminal of the processor multiplied by an appropriate coefficient. Feedback of the input signal to the processor raised to the nth power through a multiplier, wherein an input signal to the converter is multiplied by the feedback signal and the product coupled to the input of the processor, provides signals at the output of the processor which establish the polynomial as a series of terms wherein each term is the signal at the input of the converter raised to a fractional power.

Dynamic range converter providing a multiplicity of conversion ratios

An apparatus for generating a pseudo-stereo signal comprises at least two signal channels (3, 4), each signal channel (3) comprising a delay line (7) of which an output is fed back to the input (via g.sub.2). The delay lines (7, 8) have tappings (12, 13 and 14, 15 respectively). The tappings (12, 14 and 13, 15 respectively) are coupled to inputs of two signal-combination units (18 and 19, respectively) whose outputs (20, 21) are coupled to two output terminals (22, 23) to supply the pseudo-stereo signal (FIG. 1).

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Eindhoven, Netherlands

Wilhelmus J Kitzen