Arithmetic unit, correlation arithmetic unit and dynamic image c

Details Arithmetic unit, correlation arithmetic unit and dynamic image c Arithmetic unit, correlation arithmetic unit and dynamic image c

1999-01-25

2000-08-08

Malzahn, David H.

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

708813, 382278, 382281, G06F 1715

Patent

active

061015180

ABSTRACT:
In a correlation arithmetic system adapted to detect a relative difference between two functions, an operation is simplified. This makes it possible to perform the operation with a small scale of hardware and also with great accuracy. There is adopted an operation g*h instead of the "product" in the correlation arithmetic operation. There is disclosed an arithmetic unit in which two numeral values a and b are inputted, and the two numerical values a and b are subjected to a predetermined operation process, so that a numerical value c representative of an operation result is derived. The arithmetic unit has an absolute value operation unit for evaluating an absolute value .vertline.c.vertline. of the numerical value c, and a sign operation unit for evaluating a sign "sing (c)" of the numerical value c.

REFERENCES:
patent: 4622588 (1986-11-01), Chapius et al.
patent: 5075879 (1991-12-01), Anderson
patent: 5148386 (1992-09-01), Hori
patent: 5384722 (1995-01-01), Dulong
patent: 5825915 (1998-10-01), Michimoto
patent: 5832138 (1998-11-01), Nakanishi

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