| 摘要 |
PURPOSE:To simultaneously digitally store the waveform and tone of blood stream at the time of a Doppler mode and to speedily reproduce the waveform and tone with satisfactory operability by digitizing, storing, reading the waveform of the blood stream, digitizing, storing blood stream tone information and sending a read signal to a sound output part. CONSTITUTION:The waveform of the blood stream from a blood stream detecting circuit 3 is digitized and stored by a picture memory 9, which is provided on the output side of the blood stream detecting circuit, and the read signal is sent to a digital scanning converter 4. Further, the blood stream information from the blood stream detecting circuit are digitized and stored by a sound memory 11, which is provided on the output side of the blood stream detecting circuit, and the read signal is sent to a sound output part 6. Thus, at the time of the Doppler mode, operation is executed so that the waveform and tone of the blood stream can be simultaneously digitally stored and speedily reproduced. Accordingly, without executing the rewinding or program searching of the tape, the waveform and tone of the desired blood stream can be speedily reproduced with the satisfactory operability. |
