Method and apparatus for performing analog beamforming
AssigneesIndustry-University Cooperation Foundation Sogang University, Samsung Electronics Co., Ltd.
InventorsBae-hyung KIM, In-pyo KYUNG, Jin-ho CHANG, Dong-wook KIM, Jong-keun SONG, Tai-kyong SONG, Yang-mo YOO, Kyung-il CHO, Seung-heun LEE
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Abstract
A method and apparatus for performing analog beamforming is provided. According to the method and apparatus, the analog beamforming is effectively performed by using as small a number of devices as possible and by processing a relatively small amount of data.
Claims20
An apparatus for performing analog beamforming by using ultrasonic signals which are received by a transducer array having a plurality of transducer elements, the apparatus comprising:
- a delay controller which outputs respective first delay controlling information which indicates a number of delays of a first time interval and respective second delay controlling information which indicates a number of delays of a second time interval, with respect to each respective one of the ultrasonic signals and a respective predetermined position of a scanning region;
- first analog devices, wherein each respective one of the first analog devices selectively delays a corresponding one of the received ultrasonic signals by a respective first amount of time which is less than or equal to the first time interval at least once, based on the corresponding first delay controlling information;
- second analog devices, wherein each respective one of the second analog devices selectively delays a corresponding one of the selectively delayed ultrasonic signals by a respective second amount of time which is less than or equal to the second time interval at least once, based on the corresponding second delay controlling information;
- and
- an adder which sums the ultrasonic signals which have been selectively delayed by the second analog devices.
A method for performing analog beamforming by using ultrasonic signals that are received by a transducer array having a plurality of transducer elements, the method comprising:
- obtaining respective first delay controlling information which indicates a number of delays of a first time interval and respective second delay controlling information which indicates a number of delays of a second time interval, with respect to each respective one of the ultrasonic signals and a respective predetermined position of a scanning region;
- selectively delaying each respective one of the received ultrasonic signals by a respective first amount of time which is less than or equal to the first time interval at least once, based on the corresponding first delay controlling information;
- selectively delaying each respective one of the delayed ultrasonic signals by a respective second amount of time which is less than or equal to the second time interval at least once, based on the corresponding second delay controlling information;
- and
- summing the ultrasonic signals which have twice been selectively delayed.
Dependencies are inferred from the claim text.