公开(公告)号：US20180284946A1

公开(公告)日：2018-10-04

申请号：US15923967

申请日：2018-03-16

Applicant: Apple Inc.

Inventor： Marduke Yousefpor ,  Aaron Scott Tucker ,  Brian Michael King ,  Ehsan Khajeh ,  Marcus Yip ,  Mohammad Yeke Yazdandoost ,  Wesley W. Zuber

IPC: G06F3/043 ,  G06F3/0354

Abstract: An input device outfitted with one or more ultrasonic transducers can determine the location of one or more objects in contact with the input device. For example, the input device can include one or more transducers disposed in a ring around the circumference of the input device or in an array of rings along the length of the input device. The ultrasonic transducers can be used to detect the position of the one or more touching objects in at least one dimension, for example. In some examples, the one or more ultrasonic transducers can produce directional ultrasonic waves.

公开(公告)号：US10061963B2

公开(公告)日：2018-08-28

申请号：US15688639

申请日：2017-08-28

Applicant: Apple Inc.

Inventor： Mohammad Yeke Yazdandoost ,  Giovanni Gozzini ,  Jean-Marie Bussat

IPC: G06K9/28 ,  G06K9/00

CPC classification number: G06K9/0002

Abstract: An acoustic fingerprint imaging system having a plurality of acoustic elements, each acoustic element including a transducer, and independent drive and sense circuitry is disclosed. Drive circuitry may require higher voltage than low voltage sense circuitry. Many embodiments described herein include a ground shifting controller to apply a voltage bias to the low voltage sense circuitry during a drive operation, in order to prevent electrical damage to the sense circuitry.

公开(公告)号：US20170357839A1

公开(公告)日：2017-12-14

申请号：US15688639

申请日：2017-08-28

Applicant: Apple Inc.

Inventor： Mohammad Yeke Yazdandoost ,  Glovanni Gozzini ,  Jean-Marie Bussat

IPC: G06K9/00

CPC classification number: G06K9/0002

Abstract: An acoustic fingerprint imaging system having a plurality of acoustic elements, each acoustic element including a transducer, and independent drive and sense circuitry is disclosed. Drive circuitry may require higher voltage than low voltage sense circuitry. Many embodiments described herein include a ground shifting controller to apply a voltage bias to the low voltage sense circuitry during a drive operation, in order to prevent electrical damage to the sense circuitry.

公开(公告)号：US20160092714A1

公开(公告)日：2016-03-31

申请号：US14822614

申请日：2015-08-10

Applicant: Apple Inc.

Inventor： Mohammad Yeke Yazdandoost ,  Jean-Marie Bussat

IPC: G06K9/00 ,  G06F3/043

CPC classification number: G06K9/0002 ,  G06F1/1626 ,  G06F1/1684 ,  G06F3/0416 ,  G06F3/0436 ,  G06F21/00 ,  G06F21/32

Abstract: An acoustic imaging system can contain a plurality of individual acoustic elements that each contain an acoustic transducer, drive circuitry, and low voltage sense and/or read circuitry. In many embodiments both the drive circuitry and the read circuitry can be independently addressable. For example, if the individual acoustic elements are arranged into rows and columns, each acoustic element can include row/column drive circuit enable switches and row/column read circuit enable switches.

Abstract translation: 声学成像系统可以包含多个独立的声学元件，每个声学元件包含声学换能器，驱动电路和低电压感测和/或读取电路。 在许多实施例中，驱动电路和读取电路都可以独立地寻址。 例如，如果各个声学元件被布置成行和列，则每个声学元件可以包括行/列驱动电路使能开关和行/列读取电路使能开关。