Patent ID: 9449597
Filing Date: 2016-09-20
CPC Classification: G10K

Claim Text:
1. An ultrasound receiving module, comprising: N sets of shift register arrays for respectively storing N return-wave signals corresponding to N channels, wherein each set of the shift register arrays includes a delay filter unit and M shift registers, and the M shift registers are cascaded and store the corresponding return-wave signal, N and M being positive integers; a delay controller coupled to the N delay filter units for deciding delay time of each channel according to a delay table, and assigning a set of coefficients to the delay filter unit of each channel to perform an interpolation operation on data of the M shift registers to obtain an output value of each channel; N FIFO buffers, respectively coupled to the N sets of the shift register arrays, for temporarily storing the N output values; a time multiplexer coupled to the delay controller and the N FIFO buffers for switching and outputting the N output values in order according to the delay time of each channel; a multiplier coupled to the time multiplexer for multiplying the output value of each channel received from the time multiplexer by a weighted value corresponding to the channel to obtain a corrected value of each channel; and an accumulator for accumulating the N corrected values corresponding to N channels to obtain an image value.