-
公开(公告)号：US10659077B2
公开(公告)日：2020-05-19
申请号：US15597110
申请日：2017-05-16
Applicant: PixArt Imaging Inc.
Inventor： Tsung-Fa Wang , Shih-Wei Kuo
IPC: H03M11/20 , H03K5/1254 , H03M11/00
Abstract: An amending circuit of correcting bouncing misjudgment of a keyswitch includes a comparing unit, a predetermined voltage generating unit and a controlling unit. The comparing unit has a first input terminal, a second input terminal and an output terminal. The first input terminal is adapted to receive a triggering signal generated by the keyswitch. The predetermined voltage generating unit is electrically connected to the second input terminal and adapted to generate a first predetermined voltage. The controlling unit is electrically connected to the output terminal. The controlling unit is adapted to determine whether to execute polling application according to a comparison result of the comparing unit, and to generate a confirming signal while a polling result of the polling application is kept at a specific level. The confirming signal is used by an external processor to confirm that the keyswitch is actually triggered.
-
公开(公告)号：US20180212620A1
公开(公告)日：2018-07-26
申请号：US15597110
申请日：2017-05-16
Applicant: PixArt Imaging Inc.
Inventor： Tsung-Fa Wang , Shih-Wei Kuo
IPC: H03M11/20
Abstract: An amending circuit of correcting bouncing misjudgment of a keyswitch includes a comparing unit, a predetermined voltage generating unit and a controlling unit. The comparing unit has a first input terminal, a second input terminal and an output terminal. The first input terminal is adapted to receive a triggering signal generated by the keyswitch. The predetermined voltage generating unit is electrically connected to the second input terminal and adapted to generate a first predetermined voltage. The controlling unit is electrically connected to the output terminal. The controlling unit is adapted to determine whether to execute polling application according to a comparison result of the comparing unit, and to generate a confirming signal while a polling result of the polling application is kept at a specific level. The confirming signal is used by an external processor to confirm that the keyswitch is actually triggered.
-
公开(公告)号：US09804694B2
公开(公告)日：2017-10-31
申请号：US13960369
申请日：2013-08-06
Applicant: PIXART IMAGING INC.
Inventor： Chun-Wei Chen , Yen-Min Chang , Shih-Wei Kuo , Ching-Lin Chung
IPC: G06F3/038 , G06F3/0354
CPC classification number: G06F3/0383 , G06F3/03543 , H04B10/00
Abstract: A control system, a mouse and a control method thereof are provided. The control system comprises a dongle and the mouse. The dongle is wiredly connected to a host and has a first light source for emitting a first light. The mouse is wirelessly connected to the dongle and has a transmitter, a second light source for emitting a second light, an optical sensor and a processor. The optical sensor senses the first light at a first time interval to generate a first sensing signal and then also, senses the second light at a second time interval to generate a second sensing signal. The processor generates a first control signal and a second control signal according to the first sensing signal and the second sensing signal, respectively, and transmits them to the dongle via the transmitter so that the host receives the first and second control signals via the dongle.
-
公开(公告)号：US09092864B2
公开(公告)日：2015-07-28
申请号：US13943300
申请日：2013-07-16
Applicant: PIXART IMAGING INC.
Inventor： Chun-Wei Chen , Ren-Hau Gu , Shih-Wei Kuo
IPC: G06K9/00 , G06T7/00 , G06F3/03 , G06F3/038 , G06F3/0354
CPC classification number: G06T7/0044 , G06F3/0304 , G06F3/0317 , G06F3/03543 , G06F3/0383 , G06T7/74
Abstract: A displacement detection method includes the steps of: capturing a first frame and a second frame; selecting a first block with a predetermined size in the first frame and selecting a second block with the predetermined size in the second frame; determining a displacement according to the first block and the second block; comparing the displacement with at least one threshold; and adjusting the predetermined size according to a comparison result of comparing the displacement and the threshold. The present invention further provides a displacement detection apparatus.
Abstract translation: 位移检测方法包括以下步骤：捕获第一帧和第二帧; 在第一帧中选择具有预定尺寸的第一块，并在第二帧中选择具有预定尺寸的第二块; 确定根据第一块和第二块的位移; 将所述位移与至少一个阈值进行比较; 并根据比较位移和阈值的比较结果调整预定尺寸。 本发明还提供一种位移检测装置。
-
5.发明申请公开(公告)号：US20250013318A1
公开(公告)日：2025-01-09
申请号：US18890742
申请日：2024-09-19
Applicant: PixArt Imaging Inc.
Inventor： Tsung-Fa Wang , Yen-Min Chang , Shih-Wei Kuo
IPC: G06F3/03
Abstract: A method for configuring an optical input device is provided. The optical input device includes a movable unit and a sensing device. The movable unit is arranged to move within a predetermined range. The sensing device is arranged to detect a position within the predetermined range at which the movable unit is located. The method includes: adjusting an optical setting of the sensing device to obtain an optimal dynamic range of the sensing device; and configuring a valid input threshold for the optical input device based on the optimal dynamic range.
-
Patent Agency Ranking
公开(公告)号：US10816321B2
公开(公告)日：2020-10-27
申请号：US15349923
申请日：2016-11-11
Applicant: PIXART IMAGING INC.
Inventor： Ting-Yang Chang , Shih-Wei Kuo , Yen-Min Chang
Abstract: Provided herein are a measurement device and an operation method thereof. The measurement device senses a distance variation between the measurement device and an object using a built-in proximity sensor and accordingly determines whether to turn on or turn off a track sensing module and an optical ranging module such that the measurement device provides intelligent selection to achieve energy saving without being interfered with by other sensors being turned on.
-
公开(公告)号：US10303265B2
公开(公告)日：2019-05-28
申请号：US15727712
申请日：2017-10-09
Applicant: PIXART IMAGING INC.
Inventor： Tsung-Fa Wang , Shih-Wei Kuo
Abstract: This present invention discloses an optical mouse and a parameter calibration method thereof. The optical mouse includes: a light source, an image capturing unit, a memory unit and a processing unit, and the parameter calibration method of the optical mouse includes: capturing images formed by the reflective light projected from the mouse pad when the optical mouse is placed upon the mouse pad and has a relative displacement between the mouse pad, and then producing image frames according to the images; determining if any pattern information is found in the image frames; further, setting parameters of the optical mouse when at least one of the pattern information is found in the frames, in which, the pattern information is composed of a pattern of the mouse pad.
-
公开(公告)号：US10192110B2
公开(公告)日：2019-01-29
申请号：US15686355
申请日：2017-08-25
Applicant: PixArt Imaging Inc.
Inventor： Chun-Wei Chen , Shih-Wei Kuo
Abstract: There is provided a vehicle safety system including a sensing unit, a processing unit, a control unit and a display unit. The sensing unit is configured to capture an image frame containing an eyeball image from a predetermined distance. The processing unit is configured to calculate a pupil position of the eyeball image in the image frame and generate a drive signal corresponding to the pupil position. The control unit is configured to trigger a vehicle device associated with the pupil position according to the drive signal. The display unit is configured to show information of the vehicle device.
-
公开(公告)号：US10139935B2
公开(公告)日：2018-11-27
申请号：US15717218
申请日：2017-09-27
Applicant: PIXART IMAGING INC.
Inventor： Chun-Wei Chen , Yen-Min Chang , Shih-Wei Kuo , Ching-Lin Chung
IPC: G06F3/038 , G06F3/0354 , H04B10/00
Abstract: A control system, a mouse and a control method thereof are provided. The control system comprises a dongle and the mouse. The dongle is wiredly connected to a host and has a first light source for emitting a first light. The mouse is wirelessly connected to the dongle and has a transmitter, a second light source for emitting a second light, an optical sensor and a processor. The optical sensor senses the first light at a first time interval to generate a first sensing signal and then also, senses the second light at a second time interval to generate a second sensing signal. The processor generates a first control signal and a second control signal according to the first sensing signal and the second sensing signal, respectively, and transmits them to the dongle via the transmitter so that the host receives the first and second control signals via the dongle.
-
公开(公告)号：US20180232067A1
公开(公告)日：2018-08-16
申请号：US15632381
申请日：2017-06-25
Applicant: PixArt Imaging Inc.
Inventor： Tsung-Fa Wang , Yen-Chang Wang , Shih-Wei Kuo
IPC: G06F3/0346
CPC classification number: G06F3/0346 , F21V31/005 , G06F3/0317 , G06F3/03543 , G06F3/0383
Abstract: A navigation device with distance detecting function can utilize a distance detecting mechanism to detect a distance relative to a working surface. The distance detecting mechanism includes a base, a connecting component, a feature unit and a detection unit. The connecting component partly protrudes from the base. The connecting component optionally contacts against or is spaced from the working surface to generate a distance variation relative to the base along an axial direction. The feature unit is disposed on the connecting component. The detection unit is connected to the base. The detection unit can detect parameter difference of the feature unit according to the distance variation of the connecting component relative to the base, so as to determine the distance between the working surface and a bottom of the base via the parameter difference.
-
-
-
-
-
-
-
-
-
Search Results
33
records
(took 0.012 seconds)
