Methods and systems for encoding and decoding radio frequency data
AssigneeKoninklijke Philips N.V.
InventorsGregory Tsiang Ely, Faik Can Meral, Jean-Luc Francois-Marie Robert
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Abstract
Systems and methods for encoding radiofrequency, RF, data, e.g., electrical signals, by a microbeamformer are disclosed herein. The microbeamformer may use a pseudo-random sampling pattern (700) to sum samples of the RF data stored in a plurality of memory cells. The memory cells may be included in a delay line of the microbeamformer in some examples. The summed samples may form an encoded signal transmitted to a decoder which reconstructs the original RF data from the encoded signal. The decoder may use knowledge of the pseudo-random sampling pattern to reconstruct the original data in some examples.
Claims20
A system comprising:
- a transducer array including a plurality of transducer elements, wherein the transducer elements are configured to receive ultrasound echoes and convert the ultrasound echoes into electrical signals;
- a microbeamformer coupled to the plurality of transducer elements, the microbeamformer including:
- a first delay line coupled to a first transducer element of the plurality of transducer elements, wherein the first delay line includes a first plurality of memory cells configured to store the electrical signals received from the first transducer element;
- and
- a second delay line coupled to a second transducer element of the plurality of transducer elements, wherein the second delay line includes a second plurality of memory cells configured to store the electrical signals received from the second transducer element;
- wherein the microbeamformer is configured to jitter sample the electrical signal stored in the first plurality of memory cells and the second plurality of memory cells and generate a jitter signal;
- and
- a decoder configured to receive the jitter signal and generate a reconstructed signal representative of the electrical signals.
A method comprising:
- acquiring a plurality of samples of an electrical signal, wherein the electrical signal is associated with an acoustic signal;
- storing the plurality of samples in a plurality of memory cells, wherein individual memory cells of the plurality of memory cells store individual samples of the plurality of samples;
- pseudo-randomly selecting a subset of the plurality of memory cells, wherein the subset includes fewer than the plurality of memory cells;
- summing the individual samples of the plurality of samples stored in the subset of the plurality of memory cells to generate a jitter signal;
- and
- decoding the jitter signal to generate a reconstructed signal.
Dependencies are inferred from the claim text.