Method for processing Doppler signal gaps
AssigneeShenzhen Mindray Bio-Medical Electronics Co., Ltd.
InventorYong Li
Life of this patent
Estimating the term…
Abstract
A method for processing Doppler signal gaps may include receiving Doppler signals during Doppler signal acquisition to obtain data of in-phase (I) component and quadrate (Q) component signals of the Doppler signals. The method may also include receiving interruption of the Doppler signals and estimating the data of the Doppler signals interrupted in the gap period filling the interrupted Doppler signals with the data of the estimated Doppler signals so that the data of the I and Q component signals in the gap period are filled to form a continuous output. The method may further include generating Doppler spectrum data or Doppler sound based on the data of the filled I and Q component signals.
Claims15
A method for processing Doppler signal gaps, the method comprising the steps of:
- receiving Doppler signals during Doppler signal acquisition to obtain data of in-phase (I) component and quadrate (Q) component signals of the Doppler signals;
- receiving interruption of the Doppler signals indicating that the output of the data of said I and Q component signals is interrupted in a gap period, wherein the output of the data of said I and Q component signals is continuous both before and after the gap period;
- filtering the received Doppler signals using a high pass filter;
- estimating the data of the Doppler signals interrupted in said gap period based on the filtered Doppler signals received during Doppler signal acquisition;
- filling the interrupted Doppler signals with the data of the estimated Doppler signals so that the data of the I and Q component signals in said gap period are filled to form a continuous output;
- wall filtering the continuous output of the data of the filled I and Q component signals;
- and
- generating Doppler spectrum data or Doppler sound based on the wall filtered data of the filled I and Q component signals.
An ultrasonic scanning synchronous display system, the system comprising:
- means for receiving Doppler signals during Doppler signal acquisition to obtain data of in-phase (I) component and quadrate (Q) component signals of the Doppler signals;
- means for receiving interruption of the Doppler signals, in which the output of the data of said I and Q component signals is interrupted and in a gap period, wherein the output of the data of said I and Q component signals is continuous both before and after the gap period;
- means for estimating the data of the Doppler signals interrupted in said gap period based on the Doppler signals received during Doppler signal acquisition, wherein said means for estimating includes a first filtering means for filtering the received Doppler signals;
- means for filling the interrupted Doppler signals with the filtered data of the estimated Doppler signals so that the data of the I and Q component signals in said gap period are filled to form a continuous output;
- second filtering means for filtering the continuous output of the data of the filled I and Q component signals;
- and
- means for generating Doppler spectrum data or Doppler sound based on the data of the filled I and Q component signals that has been filtered by the second filtering means.
Dependencies are inferred from the claim text.