| 摘要 |
A digital signal processing circuit, which is configured by a digital signal processor (i.e., DSP), includes at least a data memory, a coefficient memory, a calculation portion and an interpolation portion. The data memory stores a plurality of digital data which are sequentially supplied thereto, while the coefficient memory stores a plurality of coefficients in connection with the plurality of digital data. The calculation portion performs a specific calculation (e.g., multiplication), using the coefficient, on the digital data. When a new coefficient is given with respect to one of the coefficients designated, the interpolation portion performs interpolation processing on the designated coefficient so as to successively shift it to the new coefficient. The coefficient successively shifted is stored in the coefficient memory. Hence, the calculation portion performs the calculation, using the coefficient successively shifted, on the digital data.
|
