Inventor

HSIEH CHUNG-HSIEN

TW47 patents

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

HSIEH CHUNG-HSIEN

HSIEH CHUNG HSIEN

Engaging/disengaging fail-safe door closing device for rolling fire door and door machine having same

Control system for door opener

Machine mechanism of a rolling door operator

Door machine having chain disk locking mechanism

Door operator of fireproof door

Integrated brake and chain disk assembly for door operator

Active brake release device driven by a second motor and attached to the exterior of a door controller

Active brake release device attached to the exterior of a door controller

Sectional lifting door system

Device for releasing and resetting a fire and smoke barrier

Door operator with high-speed operation and fire escape functions

Door operator having lock mechanism

Device and method for controlling speed of rolling door

Door curtain anti-dropping device having latching pin locking mechanism

Door operator device and sectional overhead door system with anti-pressure and anti-theft functions

Curtain control system and curtain control method

Obstacle detection device and door operator system equipped with the same

Door operator with an abnormal voltage protection function and method for protection of a door operator from an abnormal voltage

Dual-voltage door operator control system

Control system for fire door and a door operator having the same

Door curtain anti-dropping device having latching pin locking mechanism

HSIEH CHUNG-HSIEN

Door curtain anti-dropping device for electric rolling door

Door machine mechanism for rolling door having functions of fireproof, smokeproof, and fire escape

Brake release device attached to a door machine

Composite pull-chain disc mechanism with brake function and electric door operator incorporated with this mechanism

Door operator of fireproof door

Limit mechanism of upper stop level and lower stop level for rolling door

Governor device for door

Failsafe door closing device of a fire proof rolling door

Double-sided door braking equipment for a operator

Safety door central release device

Limit switch mechanism for door opening

Unidirectional centrifugal mechanism of door operator

Chain drum locking mechanism for manual rolling door operator

Door opener error-start prevention device

Pulling chain storage device of a scrolling door machine

Direction switchable ratchet device for door operator

Door operator system capable of detecting a current-time position of a movable barrier

HTC CORP

Electronic apparatus and adjustment method thereof

Electronic apparatus and adjustment method thereof

Electronic apparatus and adjustment method thereof

VIA TECH INC

Turbo decoder and iteration stopping method thereof

Spread spectrum receiver and channel compensation method thereof

YUENGCHIGEAR CO LTD

Release control mechanism for emergency exit

(unassigned)

Door opener error-start prevention device

MEDIATEK INC

Rapid selection of an antenna panel and a beam during a random access (RA)

NOVATEK MICROELECTRONICS CORP

Signal receiving system, band detection method for multi-carrier signal and demodulating apparatus thereof