Patent assignee · TW · COMPANY

PIXART IMAGING INC.

1,491Patents
1,471Active
1,491Granted
68Portfolio score

Filing activity: Sep 5, 2000 → Oct 7, 2024 · 122 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US8278571B2 Capacitive touchscreen or touchpad for finger and active stylus Physics 107 Active
US8749764B2 Distance-measuring device of measuring distance according to variation of imaging location and calibrating method thereof Physics 70 Active
US9942463B2 Camera device without image displaying function Electricity 56 Active
US10007359B2 Navigation trace calibrating method and related optical navigation device Physics 52 Active
US10241593B2 Optical processing apparatus and light source luminance adjustment method thereof Physics 51 Active
US10353487B2 Electronic apparatus having optical navigation circuit Physics 49 Active
US10871385B2 Optical encoder capable of identifying absolute positions and operating method thereof Electricity 37 Active
US10092244B2 Biometric detection module with denoising function and biometric detection method thereof Human Necessities 32 Active
US8334849B2 Firmware methods and devices for a mutual capacitance touch sensing device Physics 30 Active
US7785481B2 Method for fabricating micromachined structures Performing Operations; Transporting 27 Active
US8390793B2 Optical ranging sensor and electronic equipment Physics 26 Active
US9104910B2 Device and method for determining gesture and operation method of gesture determining device Physics 24 Active
US8368005B2 Optical detection method and optical MEMS detector, and method for making MEMS detector Physics 20 Active
US7050043B2 Optical apparatus Physics 19 Expired
US9075484B2 Sensor patterns for mutual capacitance touchscreens Physics 19 Active
US7053932B2 Method for detecting movement of image sensors Electricity 19 Expired
US8836761B2 3D information generator for use in interactive interface and method for 3D information generation Electricity 17 Active
US9618610B2 Time of flight system capable of increasing measurement accuracy, saving power and/or increasing motion detection rate and method thereof Physics 16 Active
US9904369B2 Gesture recognition system and glasses with gesture recognition function Electricity 16 Active
US7689381B2 Sensing system Physics 15 Active
US10212569B1 Bluetooth audio communication system and method for acknowledging reception of packets of audio streams at a slave and master devices Emerging Cross-Sectional Technologies 15 Active
US8830170B2 Optical pointing system and related method Physics 14 Active
US6377120B1 Regulated-cascode amplifier with clamping circuit Electricity 14 Expired
US11278172B2 Cleaning robot capable of identifying surface type Human Necessities 13 Active
US7759256B2 Micro-electro-mechanical system device and method for making same Performing Operations; Transporting 12 Active

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.