Dac device and audio system
AssigneePanasonic Corporation
InventorsToshihiro TORII, Yoshihiro HORII, Masashi UCHIDA, Junji NAKATSUKA, Takaaki SATO
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AssigneePanasonic Corporation
InventorsToshihiro TORII, Yoshihiro HORII, Masashi UCHIDA, Junji NAKATSUKA, Takaaki SATO
Estimating the term…
In a DAC device, a distortion correction function g1(x) of a harmonic obtained from a result of a frequency analysis on an analog output signal of a DAC circuit is obtained. A correction value is determined based on the correction function g1(x) in accordance with an input digital signal, and is previously stored in a memory. A nonlinear correction circuit reads a corresponding correction value from the memory in accordance with the value of a digital signal output from a digital filter, and transmits the correction value to a subtractor. The subtractor subtracts the correction value from the digital signal output from the digital filter.
A DAC device comprising:
Dependencies are inferred from the claim text.