Patent ID: 7497829

Claim:
A data recording system comprising: a memory which temporarily stores image data of a plurality of frames obtained from a received signal which is obtained through transmission and reception of ultrasound; and a recording controller unit which is configured to set a recording start time based on a recording end time designated by a user and extracts recording data from the image data of the plurality of frames stored in the memory, wherein the image data of the plurality of frames stored in the memory has an R wave flag, assigned to each frame, indicating a presence or absence of a detected R wave at a time when the frame is obtained as electrocardiographic waveform information of a heart which is a target tissue, wherein the recording controller unit further is configured to set, based on the R wave flag, the recording start time to a time which is a predetermined count number of R waves prior to the recording end time and extracts image data corresponding to a period from the recording start time to the recording end time as the recording data.