Inventor

CHANG CHIN-FU

TW178 patents

⚠️ This page may combine multiple inventors who share the name “CHANG CHIN-FU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CHANG CHIN-FU

CHANG CHIN-FU

Capacitive touch screen

Capacitive touch screen with square or rhombus conductive strips with extension pads

Device and method for writing on capacitive touch sensor by stylus with conductive head and insulating body

Method and device for position detection

Method and device for position detection

Method and device for capacitive sensing

Method and device for analyzing positions

Method and device for analyzing two-dimension sensing information

Capacitive touch screen with method and device for converting sensing information including zero cross point

Method and device for dual-differential sensing

Capacitive touchscreen with rhombic and hexagonal pads

Touch method and device for distinguishing true touch

Capacitive touch screen

Method and device for analyzing positions

Method and device for converting sensing information

Capacitive touch with driving conductive strips closer to an external object and without rear shielding layer

Capacitive touch sensitive display with dummy pads and without rear shielding layer

Method and device for analyzing positions

Device and method for preventing the influence of conducting material from point detection of projected capacitive touch panel

Method and device for determining a touch or touches

Capacitive touch screen

Capacitive touch screen

Capacitive touch screen

Device and method for parallel-scanning differential touch detection

EGALAX_EMPIA TECH INC

Stylus

Transmitter and controlling method thereof

Transmitter and transmitting method thereof

Stylus for providing tilt angle and axial direction and control method thereof

Method, device, and system for detecting transmitter approaching or touching touch sensitive display

Method and device for dual-differential sensing

Stylus

Method and device for dual-differential sensing

Flexible touch screen, touch sensitive processing apparatus and method, and electronic system

Touch sensitive processing apparatus, system and operating method thereof for receiving electrical signals carrying pressure information

Stylus and operating method thereof for transmitting electrical signals carrying pressure information

Touch sensitive processing apparatus, system and method thereof

Stylus and control method thereof

Touch sensitive processing apparatus and electronic system for detecting whether touch panel is mostly covered by conductive liquid or object and method thereof

Touch control apparatus for detecting tilt angle and axial direction of stylus and control method thereof

Touch sensitive processing apparatus and electronic system for detecting whether touch panel is mostly covered by conductive liquid or object and method thereof

Stylus for providing tilt angle and axial direction and control method thereof

Egalax—Empia Technology Inc

Capacitive touch screen

Method and device for position detection

Capacitive touch screen

Device and method for parallel-scanning differential touch detection

CHANG CHIN FU

Automatic drip bottle set

Resilient sheet-steel paper clip

EGALAX EMPIA TECHNOLOGY INC

Method and device for analyzing positions

Sensor circuit for concurrent integration of multiple differential signals and operating method thereof

EGALAX & MDASH EMPIA TECHNOLOG

Device and method for determining touch position on sensing area of capacitive touch panel