Inventor

TSAI JENN-TSAIR

TW75 patents

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

TSAI JENN-TSAIR

MUSTEK SYSTEMS INC

Slide securing device for flatbed scanning system

Device and method for quick and precise determination of scan start point for image scanner

Test chart for determining the image quality of an optical scanner

Device and method for improving scanning quality of image scanner

Image information reading apparatus having rolling elements interposed between a sheet table and a contact-type sensor

Contact image sensor image reading apparatus

Apparatus and method for increasing the scan accuracy and quality of the flatbed scanner by using close loop control

Apparatus and method for automatic scanning

Apparatus for scanning documents in front of a document plate

Image scanner using low-pixel-density CCD to achieve high-pixel-density scanning quality by pixel-level shift of CCD

Platform adjustment device for scanner

Device for quick and precise determination of scan start point for image scanner

Device used in image scanner for quickly and precisely determining scan start point and improving scanning quality

Device for improving scanning quality of image scanner

Focus controlling method and system for an image capturing system

Focus controlling method and system by evaluating a resolution index

Apparatus for scanning document

Flat-plate scanner having a beam-splitting prism/mirror and two light emitting sources

Image-scanning module for downsizing image-scanning devices

Multi-lenses optical device

Method and apparatus for obtaining relative and absolute modifying factors for image scanning apparatus

Flatbed scanners with single dynamic source

Transmission mechanism for a contact-type image scanner

Multi-lenses optical device

Handy scanner having scanning path straightness-maintaining mechanism

Apparatus having a simplified driving device for scanning an original sheet

Apparatus having a rotatable arm for providing light source for a transparent sheet and a reflective sheet

Securing device for transparent documents in a flatbed scanning system

Document-tray-driven apparatus for a photo drive

Apparatus and method of detecting a scanning range when applying assistant frames for flatbed scanners

Lens holder for a scanner system with one supporting point and one pressing point

Method of adjusting scanner module and device thereof

Apparatus and method for locating an optical module of an image-scanning system

Scanner module with adjustable magnification ratio

Method for detecting the occurrence of missing lines on images generated by an optical scanner

Resolution adjusting device

Built-in scanners having a switched single light source

MUSTEK SYSTEM INC

CCD rotary-alignment device for optical scanner

Rotary drum type optical filter apparatus

Cost-effective optical device

Image scanning device having image data correction function

Multi-resolution scanners

CCD self-alignment device for optical scanner

MUST SYSTEMS INC

Method and apparatus for calibrating the horizontal starting point of a document on a flatbed scanner

Apparatus for scanning an original sheet by means of reflective light and transmitted light

(unassigned)

Method and apparatus for automatic image calibration for an optical scanner

NUSTEK SYSTEMS INC

Method and apparatus for compensating illuminance error of a light source

MUST SYSTEM INC

Optical device having multilenses

MUSKEK SYSTEMS INC

Driving apparatus for a flatbed scanner

MUSKTEK SYSTEMS INC

Scanner capable of scanning penetrative document and reflective document with single lamp