Inner product calculating circuit

Details Inner product calculating circuit Inner product calculating circuit

1992-09-09

1994-02-08

Nguyen, Long T.

Boots, shoes, and leggings

364754, 364757, G06F 738, G06F 752

Patent

active

052854051

ABSTRACT:
An inner product calculating circuit for executing a calculation of an inner product on the basis of one or more vector data and one or more coefficients. The circuit comprises a selective inverter for selectively inverting individual bits of the vector data; a bit position shifter for shifting, in accordance with the coefficients, the bit positions of the vector data inverted selectively by the selective inverter; a bit supplementer for supplementing, with either "1" or "0", any vacant bit of the vector data where the bit positions have been shifted by the bit position shifter; and an accumulator for accumulating the initial values preset in conformity with the coefficients and the vector data supplemented with "1" or "0" in any vacant bit thereof by the bit supplementer. This circuit configuration is capable of eliminating the necessity of a powerful buffer or a low-order bit controller to consequently achieve a reduction in the circuit scale while realizing a fast inner product calculation merely by presetting specific values as initial values in conformity with the coefficients.

REFERENCES:
patent: 4495593 (1985-01-01), Ware
patent: 4573136 (1986-02-01), Rossiter
patent: 4736335 (1988-04-01), Barkan
patent: 4868778 (1989-09-01), Disbrow
patent: 4958312 (1990-09-01), Ang et al.

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