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AssigneeSony Corporation
InventorsMasayuki Katakura, Junkichi Sugita, Norio Shoji, Masato Sekine, Kimimasa Senba, Katsuhisa Daio
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A nonlinearity compensation circuit is disclosed which includes an inverse hyperbolic function generation circuit for converting differential currents corresponding to input signals in+ and in− into differential voltages which increase in proportion to an inverse hyperbolic function, an offset provision circuit for providing an offset corresponding to control signals c+ and c− to the differential voltages outputted from the inverse hyperbolic function generation circuit and a hyperbolic function generation circuit for converting the differential voltages to which the offset has been provided by the offset provision circuit into signals which increase in proportion to a hyperbolic function and outputting the resulting signals as output signals out+ and out−. Consequently, compensation for the nonlinearity such as second order distortion can be performed for the read signal from a recording medium.
A nonlinearity compensation circuit, comprising:
A control circuit for a nonlinearity compensation circuit which compensates for the nonlinearity of an input signal, comprising:
A nonlinearity compensation method for compensating for the nonlinearity of an input signal in response to a control signal, comprising the step of providing an input/output characteristic represented by a function of
A control method for a nonlinearity compensation circuit which compensates for the nonlinearity of an input signal, comprising the steps of:
A recording and/or playback apparatus, comprising:
Dependencies are inferred from the claim text.