The present invention relates to a portable ultrasonic diagnostic apparatus having a low power mode and a method of performing the same. A portable ultrasonic diagnostic apparatus having a low power mode according to the present invention is a portable ultrasonic diagnostic apparatus which transmits ultrasonic signals to a subject An ultrasound probe for receiving an echo signal reflected from the subject, a beam former for collecting echo signals reflected from the ultrasound probe and generating frame data, frame data generated from the beam former A scan converter for forming an ultrasound image by performing scan conversion on the ultrasound image of the display unit, a display unit including a display screen on which the scan converted ultrasound image is displayed, A memory for storing image data for a video in the case where it is not performed, an ultrasound image stored in the display unit and stored in the memory If the ultrasound image displayed on the display unit is determined to be an ultrasound image in the case where the ultrasound diagnosis is not performed by the ultrasound image comparison comparator and the ultrasound image comparator / analyzer , And a low power mode control unit for shifting the whole circuit to the low power mode. Therefore, the present invention periodically analyzes the brightness of a specific area of the display unit on which the ultrasound image is displayed, switches to the low power mode when the ultrasound diagnosis is not performed, reduces the total power consumption A portable ultrasonic diagnostic apparatus having a low power mode to be obtained and a method of performing the same.本発明は、低電力モードを有する携帯用超音波診断装置及びその遂行方法に関するものであって、本発明による低電力モードを有する携帯用超音波診断装置は、超音波信号を被検体に送信した後、被検体から反射されてきたエコー信号を受信する超音波プローブと、超音波プローブから反射されてきたエコー信号を収集してフレームデータを生成するビームフォーマと、ビームフォーマから生成されたフレームデータにスキャン変換を行って、超音波映像を形成するスキャン変換部と、スキャン変換された超音波映像が表示されるディスプレイ画面を備えるディスプレイ部と、ディスプレイ部の超音波映像のうち、超音波診断を行わない場合の映像に対するイメージデータを保存するメモリと、ディスプレイ部の超音波映像とメモリに保存されたイメージデ
