Philips Electronics patents granted on 21 April 2009

12 US patents granted on 21 April 2009 and assigned to Philips Electronics

1 7,523,312 Fingerprint database updating method, client and server
2 7,522,951 Electrode arrangement
3 7,522,706 X-ray tube cooling collar
4 7,522,507 Optical scanning device
5 7,522,481 Disc drive mechanism and method of operation therefor
6 7,521,910 Method and device for measuring current in a switched current path of a circuit
7 7,521,876 Electronic ballast with lamp type determination
8 7,521,872 Integrated lamp with feedback and wireless control
9 7,521,871 Transparent zirconium oxide-tantalum and/or tantalum oxide coating
10 7,521,869 Electric discharge lamp with halide resistant conductor
11 7,521,683 X-ray detector
12 7,520,636 Luminaire comprising LEDs