Inventor

HO SHUI-PO

HK2 patents

Patents

2 patents

US7059933B1Jun 13, 2006

Ultrasonic signaling interactive toy

ELAN MICROELECTRONICS CORP15 citations77

US7123842B2Oct 17, 2006

Ultrasonic and infrared transmitter with tunable carrier frequency

ELAN MICROELECTRONICS CORP2 citations55