Wave receiving apparatus and ultrasonic diagnostic apparatus
AssigneeFujitsu Limited
InventorsKazuhiro Watanabe, Akira Shiba
Life of this patent
Estimating the term…
Abstract
A wave receiving apparatus has a receiver unit for receiving a wave arrived at a predetermined aperture, together with information as to a position inside the aperture. A weighting processing unit performs a weighting process for received signals derived in the receiver unit with a plurality of types of weighting functions where a position inside the aperture is given in the form of a variable. An arithmetic unit performs an operation including an arithmetic operation in which a travelling direction of the wave arriving at the aperture, or a position of a generating source of the wave, is evaluated in accordance with a plurality of weighted receive signals derived through the weighting process of the weighting processing unit.
Claims13
A wave receiving apparatus comprising:
- a receiver unit receiving a wave arriving at a predetermined detection region, said receiver unit detecting information for a position within the detection region, the detection region providing an aperture for said receiver unit said receiver unit further generating a signal in response to the wave;
- a weighting processing unit performing a weighting process for received signals derived in said receiver unit, said weighting process including applying to each received signal a plurality of types of weighting functions in which a position within the detection region is represented by a variable;
- and
- an arithmetic unit performing an operation including an arithmetic operation in which a traveling direction of the wave arrived at the detection region or a position of a generating source of the wave is evaluated in accordance with a plurality of weighted received signals derived through the weighting process of said weighting processing unit.
A method of processing incident waves, the method comprising:
- applying to a received signal a weighting operation for each of a first weighting function and a second weighting function to generate a first weighted signal and a second weighted signal, the first and second weighting functions being defined on a region corresponding to an aperture of a wave receiver and the received signal being generated by the wave receiver responsive to a wave incident to the aperture;
- and
- performing an evaluation operation, including an arithmetic operation, to determine at least one of a direction of travel of the wave and a position of a source of the wave relative to the aperture, based on the first weighted signal and the second weighted signal.
A wave receiving apparatus comprising:
- a receiver unit to receive a wave comprised of a plurality of receiver elements;
- a first aperture defined by a first subgroup of said receiver elements, said receiver unit detecting a position of the wave within said first aperture;
- a weighting processing unit to perform a weighting processing for signals derived in said receiver unit with a plurality of types of weighting functions where a position inside said first aperture is given in the form of a variable;
- and
- an arithmetic unit to perform an operation including an arithmetic operation in which a traveling direction of the wave at said first aperture, or a position of a generating source of the wave is evaluated in accordance with a plurality of weighted received signals derived in said weighting processing unit.
Dependencies are inferred from the claim text.