Enlarging digital documents not unique either

Apple's '163 patent relates to double-tapping to enlarge and center portions of an electronic document.

Again, Samsung disputes that this function was new. This is what Samsung said about its technology.

"The LaunchTile and XNav Systems are executable on portable electronic devices with a touch screen display such as PDAs and cell phones. See LaunchTile Publication at 201. The method of the LaunchTile System includes displaying at least a portion of a structured electronic document on the touch screen display, wherein the structured electronic document comprises a plurality of boxes of content.

"The LaunchTile and XNav Systems," the company continued, "detects a first gesture at a location on the displayed portion of the structured electronic document. LaunchTile uses gestures on a touch-sensitive screen for navigation, and works with both single and multi-tap input."