06958749 is referenced by 157 patents and cites 12 patents.

The present invention enables to easily perform a graphic processing even when a touch panel is used. When a resistance film unit is pressed with a pen or a finger, output voltages associated with the X coordinate and the Y coordinate position are changed and these output voltages are transmitted as the X coordinate data and the Y coordinate data to a touch panel driver. According to the output from the resistance film unit, the touch panel driver generates an event for supply to a GUI handler. The touch panel driver includes a two-point specification detector which detects two point specifications and causes to calculate coordinates of the two points. The GUI handler generates a message corresponding to the GUI according to the event and supplies the message to an application. The GUI handler includes a processing mode modification block which differently interprets the event when a single point is specified and when two points are specified, thereby modifying the graphic processing mode.

Title
Apparatus and method for manipulating a touch-sensitive display panel
Application Number
9/699757
Publication Number
6958749 (B1)
Application Date
October 30, 2000
Publication Date
October 25, 2005
Inventor
Junichi Rekimoto
Kanagawa
JP
Yuji Ayatsuka
Tokyo
JP
Nobuyuki Matsushita
Kanagawa
JP
Agent
Bell Boyd & Lloyd
Assignee
Sony Corporation
JP
IPC
G09G 005/00
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