Inventor

TSAI HWAI SIAN

HK47 patents

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

TSAI HWAI SIAN

BBPOS LTD

Power management circuitry in peripheral accessories of audio devices

System and method for a near field communications reader device

Magnetic stripe reader with card swipe information feedback

Power management circuitry in peripheral accessories of audio devices

Power management circuitry in peripheral accessories of audio devices

Power management circuitry in peripheral accessories of audio devices

System and method to protect privacy of personal-identification-number entry on consumer mobile device and computing apparatus

System and methods to prevent unauthorized usage of card readers

System and method for a near field communications reader device

System and method for a secure display module

System and method for indicating entry of personal identification number

System and method for a keypad on a touch screen device

System and method to protect privacy of personal-identification-number entry on consumer mobile device and computing apparatus

Magnetic stripe reader with card swipe information feedback

System and methods to prevent unauthorized usage of card readers

System and methods to prevent unauthorized usage of card readers

System and method for a secure display module

System and method for adjusting variable(s) related to near field communications antenna for mobile devices to ensure antenna operation within a defined operating range

System and method for adjusting variable(s) related to near field communications antenna for mobile devices to ensure antenna operation within a defined operating range

System and method to protect privacy of personal-identification-number entry on consumer mobile device and computing apparatus

System and method for mounting a magnetic card reader head onto a card reader

System for controlling audio frequencies of electronic appliances and a method of the same

STRIPE INC

Terminal hardware configuration system

System and methods to prevent unauthorized usage of card readers

Terminal hardware configuration system

System and method to prevent unauthorized usage of card readers and modular electronic funds transfer point of sale device

System and methods to prevent unauthorized usage of card readers

System and method for indicating entry of personal identification number

System and method for a near field communications reader device

Power management circuitry in peripheral accessories of audio devices

System and method for a secure display module

System and method for a near field communications reader device

System and methods to prevent unauthorized usage of card readers

System and method for indicating entry of personal identification number

System and method for a keypad on a touch screen device

System and method to protect privacy of personal-identification-number entry on consumer mobile device and computing apparatus

System and method to protect privacy of Personal-Identification-Number entry on consumer mobile device and computing apparatus

System and method to protect privacy of personal-identification-number entry on consumer mobile device and computing apparatus

System and method for mounting a magnetic card reader head onto a card reader

LO CHI WAH

Magnetic stripe reader with card swipe information feedback

System and method for a secure display module

System and method for detecting the ground and microphone input contacts in an audio plug

CHAN WING CHEONG

Power management circuitry in peripheral accessories of audio devices

TSAI HWAI SIAN

Payment card terminal dongle for communications devices

ETERNAL ELECTRONICS LTD

SIM card adapter for mobile phone

BBPOS LMITED

System and methods to prevent unauthorized usage of card readers

STRIPE LLC

System and method for near field communications payment