Ultrasound signal processing circuitry and related apparatus and methods

An ultrasound device comprising:

• an ultrasound transducer array configured to provide received signals in response to receiving ultrasound energy;
• and
• a processing circuit configured to process the received signals, the processing circuit comprising:
• a conversion circuit configured to convert the received signals to a digital domain to provide signal samples;
• an extraction circuit configured to extract from the signal samples a subset of the signal samples that correspond to an image to be formed;
• a time domain signal conditioning circuit configured to apply at least one time domain weighting function to the extracted signal samples;
• a Fast Fourier Transform circuit configured to convert the weighted signal samples to frequency domain values;
• a frequency domain signal conditioning circuit configured to apply at least one frequency domain weighting function to the frequency domain values;
• and
• an output circuit configured to output the weighted frequency domain values for ultrasound image formation processing;
• wherein the processing circuit is configured to partially process the extracted signal samples in a first number of channels, to store the partially processed signal samples in a memory, and to complete processing of the partially processed signal samples in a second number of channels less than the first number of channels.