Resources Contact Us Home Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE     ADD Microtech Corp. Patents Assignee: ADD Microtech Corp. Address: Taipei, TW No. of patents: 1 Patents: Patent Number Title Of Patent Date Issued 6989807 LED driving device January 24, 2006 A LED driving device includes a plurality of LEDs, a voltage detecting circuit, and a current switching circuit. When the voltage detecting circuit detects the different voltage level of power source without coupling to a filtering capacitor, it sends a signal to the current switchin       Recently Added Patents Locating system and method Method for self-configuring routing devices in a network Right-angle coaxial connector Watch Environmentally-controlled network interface device and methods Method and apparatus for achieving crypto-syncronization in a packet data communication system Progressive extended compression mask for dynamic trace   Randomly Featured Patents Channel allocation method in connection with data transmissions in the optical frequency range Forming of frozen foodstuffs Water closet Method for intermediating images Pen type optical reading device having plural lens arrangement Self-tapping or thread-forming screw Coating material for shielding electromagnetic waves Process for the preparation of pilocarpine from in vitro cultures of pilocarpus Foot washer Method for forming a non-volatile memory and a peripheral device on a semiconductor substrate © 2006. PatentGenius. All Rights Reserved.