公开(公告)号：US10558838B2

公开(公告)日：2020-02-11

申请号：US15977717

申请日：2018-05-11

Applicant: Synaptics Incorporated

Inventor： Guozhong Shen ,  Syed Mahmud ,  Jonathan Ku

IPC: G06K9/28 ,  G06K9/36 ,  G06K9/00

Abstract: Disclosed are systems and method for imaging an input object. An imaging device includes: a light source that emanates light to a sensing region in which the input object to be imaged is placed; a collimator filter layer; an image sensor array disposed below the collimator filter layer that blocks some light reflected from the input object while other light passes through apertures in the collimator filter layer and arrives at the image sensor array; and a controller configured to cause a first image of the input object to be captured with the light source turned on, and to transmit the first image to a processor associated with the electronic device to perform image matching against one or more template images before causing a second image of the input object to be captured with the light source turned off.

公开(公告)号：US20190080135A1

公开(公告)日：2019-03-14

申请号：US16129195

申请日：2018-09-12

Applicant: Synaptics Incorporated

Inventor： Guozhong Shen ,  Ozan Ersan Erdogan ,  Syed Mahmud ,  Philip Yiu Kwong Chan ,  Nan Wang

IPC: G06K9/00

Abstract: Low power input object settlement detection systems and methods for operating a capacitive sensor having a plurality, M, of transmitter electrodes and a plurality, N, of receiver electrodes, wherein N and M are integer values. A plurality of input object settlement scans are captured, when a presence of an input object is detected, or in response to a presence of an input object being detected, wherein capturing each input object settlement scan includes driving all or a portion of the plurality, M, of transmitter electrodes simultaneously and detecting receiver signals from at least a subset of the plurality, N, of receiver electrodes simultaneously. When a difference between subsequent input object settlement scans is below a threshold value, a full input object image is acquired.