Antonelli, Terry, Stout & Kraus, LLP
Multiplying method and apparatus
 A multiplying apparatus includes a Booth decoder for performing a second-order Booth decode on a multiplier, a Booth selector for generating a partial product except the two high-order digits from the output of the decoder and a multiplicand, a partial product corrector for correcting the two high-order digits of the partial product based on the multiplier and the multiplicand and outputting the corrected result, for cancelling a sign corrected portion of the negative partial product, and a carry save adder for being inputted with the outputs of the Booth selector and the outputs of the corrector and adding them. 
Hitachi, Ltd.
G
G06F
inventional
Hiromichi Takahiro
Yamada Nishiyama