A sequence of cards representing filters is displayed along a first axis of a user interface with a single card being displayed in a focus area. The card in the focus area defines a selected object type filter, which is applied to another sequence of available options. The filtered sequence is then displayed...http://www.google.com.au/patents/US20060218591?utm_source=gb-gplus-sharePatent US20060218591 - System and method for focused navigation using option type filters
