公开(公告)号：US20200074135A1

公开(公告)日：2020-03-05

申请号：US16679067

申请日：2019-11-08

Applicant: InvenSense, Inc.

Inventor： Bruno W. GARLEPP ,  Michael H. PERROTT ,  Michael DANEMAN ,  James Christian SALVIA ,  Nikhil APTE

IPC: G06K9/00

Abstract: A method for generating an image is provided. The method comprises capturing a first set of image pixels by an ultrasonic sensor comprising an array of ultrasonic transducers using a first beamforming pattern, wherein the first beamforming pattern comprises a first pattern of transmit signals routed to a plurality of ultrasonic transducers of the ultrasonic sensor. The method further comprises capturing a second set of image pixels at the ultrasonic sensor using a second beamforming pattern, wherein the second beamforming pattern comprises a second pattern of transmit signals routed to the plurality of ultrasonic transducers. The second beamforming pattern is different than the first beamforming pattern. The second set of image pixels corresponds to an edge region of the ultrasonic sensor. The method additionally comprises combining the first set of image pixels and the second set of image pixels to form the image. An electronic device and a method of generating an image of a fingerprint with a fingerprint sensor are also provided.

公开(公告)号：US20200050817A1

公开(公告)日：2020-02-13

申请号：US16659329

申请日：2019-10-21

Applicant: InvenSense, Inc.

Inventor： James Christian SALVIA ,  Hao-Yen TANG ,  Michael H. PERROTT ,  Bruno W. GARLEPP ,  Etienne DE FORAS

IPC: G06K9/00 ,  G06F1/3287 ,  G06F1/3231 ,  G06F3/043

Abstract: In a method for operating a fingerprint sensor comprising a plurality of ultrasonic transducers, a first subset of ultrasonic transducers of the fingerprint sensor are activated, the first subset of ultrasonic transducers for detecting interaction between an object and the fingerprint sensor. Subsequent to detecting interaction between an object and the fingerprint sensor, a second subset of ultrasonic transducers of the fingerprint sensor are activated, the second subset of ultrasonic transducers for determining whether the object is a human finger, wherein the second subset of ultrasonic transducers comprises a greater number of ultrasonic transducers than the first subset of ultrasonic transducers.

公开(公告)号：US20180349663A1

公开(公告)日：2018-12-06

申请号：US15611704

申请日：2017-06-01

Applicant: InvenSense, Inc.

Inventor： Bruno W. GARLEPP ,  Michael H. PERROTT ,  Michael DANEMAN ,  James Christian SALVIA ,  Nikhil APTE

IPC: G06K9/00

CPC classification number: G06K9/0002

Abstract: A method for generating an image is provided. The method comprises capturing a first set of image pixels by an ultrasonic sensor comprising an array of ultrasonic transducers using a first beamforming pattern, wherein the first beamforming pattern comprises a first pattern of transmit signals routed to a plurality of ultrasonic transducers of the ultrasonic sensor. The method further comprises capturing a second set of image pixels at the ultrasonic sensor using a second beamforming pattern, wherein the second beamforming pattern comprises a second pattern of transmit signals routed to the plurality of ultrasonic transducers. The second beamforming pattern is different than the first beamforming pattern. The second set of image pixels corresponds to an edge region of the ultrasonic sensor. The method additionally comprises combining the first set of image pixels and the second set of image pixels to form the image. An electronic device and a method of generating an image of a fingerprint with a fingerprint sensor are also provided.

公开(公告)号：US20170328870A1

公开(公告)日：2017-11-16

申请号：US15589921

申请日：2017-05-08

Applicant: InvenSense, Inc.

Inventor： Bruno W. GARLEPP ,  Michael H. PERROTT ,  James Christian SALVIA

IPC: G01N29/34 ,  G11C19/28 ,  H01L41/047 ,  G11C19/38 ,  H03K17/96 ,  H01L41/113

CPC classification number: G01N29/34 ,  B06B1/0629 ,  G01N2291/106 ,  G10K11/346 ,  G11C19/287 ,  G11C19/38 ,  H01L41/047 ,  H01L41/1132 ,  H03K17/9643

Abstract: In a method of using an ultrasonic sensor comprising a two-dimensional array of ultrasonic transducers, a plurality of ultrasonic signals are transmitted according to a beamforming pattern at a position of the two-dimensional array. The beamforming pattern focuses the plurality of ultrasonic signals to location above the two-dimensional array, wherein the beamforming pattern identifies ultrasonic transducers of the two-dimensional array that are activated during transmission of the ultrasonic signals, and wherein at least some ultrasonic transducers of the beamforming pattern are phase delayed with respect to other ultrasonic transducers of the beamforming pattern. At least one reflected ultrasonic signal is received at the position according to a receive pattern, wherein the receive pattern identifies at least one ultrasonic transducers of the two-dimensional array that is activated during the receiving. The transmitting and the receiving are repeated at a plurality of positions of the two-dimensional array.

公开(公告)号：US20170322292A1

公开(公告)日：2017-11-09

申请号：US15294186

申请日：2016-10-14

Applicant: InvenSense, Inc.

Inventor： James Christian SALVIA ,  Michael H. PERROTT ,  Marian VOROS ,  Eldwin NG ,  Julius Ming-Lin TSAI ,  Nikhil APTE

IPC: G01S7/521 ,  H01L27/092

CPC classification number: H01L27/0925 ,  B06B1/0622 ,  B81C1/00246 ,  G06F3/03547 ,  G06F2203/0338 ,  G06K9/0002 ,  H01L21/823885 ,  H01L27/0922

Abstract: An electronic device includes a plurality of CMOS control elements arranged in a two-dimensional array, where each CMOS control element of the plurality of CMOS control elements includes semiconductor devices. The plurality of CMOS control elements each including a PMOS semiconductor device portion comprising a high voltage PMOS device and a low voltage PMOS device and an NMOS semiconductor device portion comprising a high voltage NMOS device and a low voltage NMOS device. The plurality of CMOS control elements are arranged in the two-dimensional array such that the PMOS semiconductor device portion of a CMOS control element of the plurality of CMOS control elements is only adjacent to other PMOS semiconductor device portions of adjacent CMOS control elements of the plurality of CMOS control elements, and such that the NMOS semiconductor device portion of a CMOS control element of the plurality of CMOS control elements is only adjacent to other NMOS semiconductor device portions of adjacent CMOS control elements of the plurality of CMOS control elements.