Data processing apparatus for performing cumulative processing o

Details Data processing apparatus for performing cumulative processing o Data processing apparatus for performing cumulative processing o

1995-06-23

1998-03-17

Coleman, Eric

Boots, shoes, and leggings

364768, G06F 1710

Patent

active

057297592

ABSTRACT:
A vector operation data path (3) in a vector calculator is composed of a cumulative data selection unit (5) and a cumulative calculator (6). The cumulative data selection unit (5) outputs cumulative data Z(1) to Z(n) which are time series data on the basis of operation data A and operation data Y, sequentially to the cumulative calculator (6). A selector (66) in the cumulative calculator (6) outputs selected data S(i) by selecting one of differential data {Z(i)-Z(i+1)}, differential data {Z(i)-Z(i+2)} and cumulative data Z(i). The selected data S(i) is applied to an absolute value circuit (67) and a square circuit (68), and the obtained square data SQ(i) is given to an accumulator (69), and the accumulator (69) determines the cumulative value.

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ISSCC 93, Session 2, Digital and Video Signal Processing, pp. 36-37, Feb. 24, 1993, Toshiake Inoue, et al., "WP 2.6: 300MHz 16b BiCMOS Video Signal Processor".
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Electronics and Wireless World, pp. 52-55, Jan. 1989, Julian Nolan, "Working With DSP".

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