Multi-touch Surface Extension using Conductive Traces and Pads

An interactive board for use with a plurality of game pieces and a user device having a touch screen, the interactive board comprising:

• a space for placing one of the plurality of game pieces thereon, wherein the space includes:
• a rotation code sense pad array connected to a first plurality of conductive traces connectable to the touch screen of the user device for identifying one of a plurality of rotation positions of the one of the plurality of game pieces placed in the space, by the user device;
• a ground for grounding the one of the plurality of game pieces placed in the space;
• and
• an identification code sense pad array connected to a second plurality of conductive traces connectable to the touch screen of the user device for identifying the one of the plurality of game pieces placed in the space, by the user device.

A game piece for use with an interactive board and a user device having a touch screen, the game piece comprising:

• a rotation code trace for placement in a space of the interactive board having a rotation code sense pad array connected to a first plurality of conductive traces connectable to the touch screen of the user device for identifying one of a plurality of rotation positions of the one of the plurality of game pieces placed in the space, by the user device;
• a ground for grounding the game piece when placed in the space of the interactive board having a board ground;
• and
• a plurality of identification code traces for placement in the space of the interactive board having a second plurality of conductive traces connectable to the touch screen of the user device for identifying the one of the plurality of game pieces placed in the space, by the user device.

A game system for use with a user device having a touch screen, the game system comprising:

• a plurality of game pieces;
• and
• an interactive board having a space for placing one of the plurality of game pieces thereon, wherein the space includes:
• a rotation code sense pad array connected to a first plurality of conductive traces connectable to the touch screen of the user device for identifying one of a plurality of rotation positions of the one of the plurality of game pieces placed in the space, by the user device;
• a board ground for grounding the one of the plurality of game pieces placed in the space;
• and
• an identification code sense pad array connected to a second plurality of conductive traces connectable to the touch screen of the user device for identifying the one of the plurality of game pieces placed in the space, by the user device;
• each of the plurality of game pieces includes:
• a rotation code trace for placement in the space of the interactive board having the rotation code sense pad array;
• a game piece ground for grounding the game piece using the board ground;
• and
• a plurality of identification code traces for placement in the space of the interactive board having the second plurality of conductive traces.