ULTRASOUND IMAGE CAPTURE DEVICE

摘要

An objective of the present invention is, in an aperture synthesis process, to reduce receiving signal variations between transmissions, and obtain a high-precision image. A receiving beam former (107) which carries out an aperture synthesis process comprises: a delay add phasing unit (204) which delays and adds receiving signals of each transmission for one or more receiving foci, phasing the receiving signals; a beam memory (206) which stores delay phased data of each of the receiving foci from the delay add phasing unit (204) for each transmission; and an inter-transmission synthesis unit (205) which reads out and synthesizes the delay phased data for a given receiving focus, among the delay phased data which is stored in the beam memory for each transmission. With the inter-transmission synthesis unit (205), the synthesis is carried out after weighting the delay phased data for each transmission for each given receiving focus with respective weighting coefficients.