Apparatus for estimating the square of a multi-bit digital sample having a value (A+B) segments the sample into a most significantf bit (MSB) portion having the value A, and a least significant bit (LSB) portion having a value B. The LSB portion is added back to the sample to produce a sample having...http://www.google.com/patents/US4787056?utm_source=gb-gplus-sharePatent US4787056 - Apparatus for estimating the square of digital samples
