| 摘要 |
<p>A signal processing circuit operates upon digitized signals from a plurality of linear color sensors (10r, 10g, 10b) that are spatially separated in the page scanning direction (11) by a predetermined number of lines. The digitized signals are realigned in a line rephasing circuit (20), which provides sets of rephased color values for each scanned element of the original. A matrix multiplication is performed in a row sequential process upon the rephased signals by a group of multipliers (42a, 42b, 42c), one multiplier for each row coefficient of the matrix. Each multiplier receives a rephased signal and a series of coefficients multiplexed into the circuit from a group of row coefficient registers (38a, 38b, 38c). By clocking the rephased signals at a submultiple of the coefficient rate, a row-sequential matrix operation is serially performed in a pipelined manner.</p> |
