| 摘要 |
<p>A hand held ultrasound scanner and a method of operation of such a scanner giving tow power consumption having multiple power up modes Including a stand by mode In which only a first processor Is active providing the function of recognising a user command to initiate an ultrasound scan; a setup mode in which a second processor is also active to receive and process communications which direct the setting of values for set up parameters for an ultrasound scan; a low power pre-charge mode In which a third processor Is active to provide control for analogue circuitry which performs an ultrasound scan, and a high voltage power supply is also activated, to provide power to an ultrasound transducer under the control of the third processor; a high power pre-charge mode In which analogue circuitry for ultrasound scanning is supplied with power and echoes are received and analysed by the analogue circuitry; the stand by, setup, low power pre-charge, high power pre-charge and scanning modes being entered sequentially.</p> |
