Computation Circuit for Multichannel Data and Its Computation Method

摘要

The present invention relates to a calculation circuit and method for multichannel data applied to a correlation calculation unit for motion vector detection in a video signal processing or a circuit for processing a multichannel data such as an average value calculation in a digital signal processing.;The outputs of the previous stages are grouped into bits with the same unit to receive the least significant data (LSB) consisting of the least significant bits from the most significant data (MSB) consisting of the most significant bits and the high logical value of their respective data. It consists of a multi-step bit sum operation unit (110 ~ 130) consisting of a plurality of bit sum combination operators for counting the number of bits having a number, and the bit sum operation unit 110 of the first step of the multi-step bit sum operation unit ) Is the first least significant data composed of the least significant bits from the first least significant data (FMSB), which is composed of bits having the same unit among the M bits of each channel, N bits, which are N bits. And a plurality of bit sum combination operators 111 to 114 that receive the FLSB and count the number of bits having a high logical value of their respective data. The bit sum operation unit 130 of the last step of the sum sum operation units outputs the first and second data F1 and F2 composed of the least significant bit to the most significant bit, and outputs the first data F1 and the second data F2. And an adder 140 for adding the received result and outputting the calculation result data (O).