Division unit, image analysis unit and display apparatus...

Details Division unit, image analysis unit and display apparatus... Division unit, image analysis unit and display apparatus...

2011-08-02

2011-08-02

Mai, Tan V (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

Reexamination Certificate

active

07991818

ABSTRACT:
A division unit, an image analysis unit and a display apparatus using the same capable of simplifying the computation of overall average gray scale are provided. The division unit includes an adder for receiving a first to an Nthbus signals to produce an addition result, wherein the first to the Nthbus signals shift the input signal by a different number of bits and adding logic zeros to the shifted bits as compensation, where N is a positive whole number, and a multiplexer for receiving a most significant bit (MSB) of the addition result, wherein, when the MSB has a first value, the multiplexer treats P bits of the addition result as a division result, and when the MSB has a second value, the multiplexer outputs P logic 1 to serve as the division result, where P is a positive whole number.

REFERENCES:
patent: 5740344 (1998-04-01), Lin et al.
patent: 6999981 (2006-02-01), Goel et al.
patent: 7095906 (2006-08-01), Gu

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