Patent ID: 8323107

Claim:
A device for monitoring a first player, the device comprises: a location unit arranged to receive transmissions from multiple short-range transmitters at multiple points in time and to generate, based on the transmissions, location information about locations of the first player at the multiple points in time; a score button that once pressed by the first player provides a first player score indication; a score calculating unit arranged to: receive the first player score indication, transmit a first player score message to another device that is designed to trigger a first player score alert, determine whether to update a first player score value based on at least zero responses to the first player score message, and update the first player score value based on the determination; a feedback unit arranged to receive a second player score message about an intent of a second player to update a second player score value, generate a second player score alert, and transmit a first player response based on at least zero responses of the first player to the second player score alert; and a display for displaying the first player score value and at least one other player score value.