公开(公告)号：US10511288B2

公开(公告)日：2019-12-17

申请号：US16446699

申请日：2019-06-20

Applicant: PixArt Imaging Inc.

Inventor： Kian-Ming Chin ,  Willie Song

IPC: H03H17/02

Abstract: A navigation device including a digital filter configured to smooth tracking is provided. The digital filter is configured to sequentially receive input data and output a tap sum, and calculate a quotient and a remainder by dividing an accumulation value with an average number, wherein the remainder is feedback to the tap sum for updating the accumulation value and the quotient is configured as output data.

公开(公告)号：US09727148B2

公开(公告)日：2017-08-08

申请号：US14139981

申请日：2013-12-24

Applicant: PIXART IMAGING INC.

Inventor： Kian-Ming Chin ,  Yik-Leong Chong

IPC: G06F3/0354 ,  G06F3/03

CPC classification number: G06F3/03541 ,  G06F3/0317

Abstract: There is provided an image display system including a navigation device and an inertial unit. The navigation device outputs displacements at a report rate. The inertial unit may provide an inertial displacement for continuously controlling a cursor motion after the displacements decrease to zero.