Real-time digital reception convergence manner and device

摘要

(57) Abstract The real-time digital reception focusing arrangement calculates the convergence time delay the array type converter (1A) the center, making use of the corresponding sensing element, and the information regarding the scanning line. The convergence time delay for each sensing element is calculated each classified by sensing element. The 1st coefficient signal which is output from the multiple coefficient generation sections which in order to calculate the convergence time delay with actual time base are laid out in parallel configuration is input into the 1st multiplexer. The 1st multiplexer chooses outputs the inside one of the 1st coefficient signals in accordance with the selection control signal which corresponds to the present decisive variable signal. The decisive variable signal for the present convergent dot which is output from the decisive variable generation section is utilized in the decisive variable signal generation for the next convergent dot. The sampling clock generation section calculates the integer convergence time delay for the next convergent dot, generates the sampling clock at sanburingu interval making use of the integer convergence time delay which is obtained by calculation. Therefore, making use of the simple hardware, be able to design the digital reception focusing arrangement, real-time convergence is possible. Not only the ultrasonic reception focusing arrangement which uses the array type converter even in case of the light ray convergence system which uses the array type varying converter it can apply the digital focusing arrangement.