Nokia patents granted on 28 July 2009

13 US patents granted on 28 July 2009 and assigned to Nokia

1 7,568,111 System and method for using DRM to control conditional access to DVB content
2 7,567,806 Method and system to improve handover between mobile video networks and cells
3 7,567,796 System and method of registering subscription characteristics using user identities
4 7,567,719 Method for encoding images, and an image coder
5 7,567,538 Arranging mobile-to-mobile connections in wireless telecommunications system
6 7,567,531 Adaptive transmission channel allocation method and system for ISM and unlicensed frequency bands
7 7,567,528 Communications system
8 7,567,372 Electrical device utilizing charge recycling within a cell
9 7,567,237 Opening and closing of a user interface element
10 7,567,132 Synthesizer
11 D597,088 Keypad for a handset
12 D597,083 Headset
13 D597,048 Handset