RECEIVE-SIDE BEAM FORMING FOR AN ULTRASONIC IMAGE SENSOR

• Main Authors: DAFT CHRISTOPHER MARK WILLIAM, HINGER ASHISH, PANCHAWAGH HRISHIKESH VIJAYKUMAR, BURNS DAVID WILLIAM, DJORDJEV KOSTADIN DIMITROV
• Format: Patent
• Language: Chinese; English
• Published: 08.06.2018
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; CALCULATING; COMPUTING; COUNTING; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; HANDLING RECORD CARRIERS; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; PRESENTATION OF DATA; RADIO DIRECTION-FINDING; RADIO NAVIGATION; RECOGNITION OF DATA; RECORD CARRIERS; TESTING

Methods, systems and storage media are described, each of which may be used to generate an image of an object using ultrasonic plane waves. For example, the generated image may be of a target object positioned on a platen surface. The image may be derived from corrected output signals obtained from a plurality of selected sensor pixels. The corrected output signals may adjust for diffraction of reflected ultrasonic plane waves from a target object positioned on the platen surface. The target object may be a finger or a tip of a stylus. 描述方法、系统和存储媒体，其中的每个可用于使用超声波平面波产生对象的图像。举例来说，所述所产生图像可属于定位在压板表面上的目标对象。所述图像可从获自多个选定传感器像素的经校正输出信号导出。所述经校正输出信号可调整来自定位在所述压板表面上的目标对象的经反射超声波平面波的衍射。所述目标对象可以是手指或触控笔的笔尖。