US 12,257,514 B2
Game board device
Chung-Ting Yang, Hsin-Chu (TW); Yen-Min Chang, Hsin-Chu (TW); and Yen-Chang Wang, Hsin-Chu (TW)
Assigned to PIXART IMAGING INC., Hsin-Chu (TW)
Filed by PIXART IMAGING INC., Hsin-Chu (TW)
Filed on Mar. 14, 2024, as Appl. No. 18/604,581.
Application 18/604,581 is a continuation of application No. 17/563,289, filed on Dec. 28, 2021, granted, now 11,964,212.
Prior Publication US 2024/0216787 A1, Jul. 4, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A63F 3/02 (2006.01); A63F 3/00 (2006.01); A63F 9/24 (2006.01)
CPC A63F 3/02 (2013.01) [A63F 3/00643 (2013.01); A63F 2003/00646 (2013.01); A63F 2003/00662 (2013.01); A63F 2009/2419 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A go board game device capable of identifying game pieces of distinct luminance contrast that are disposed thereon and that include a plurality of black pieces and a plurality of white pieces, the go board game device comprising:
a go board, wherein an outer surface of the go board has three hundred sixty one intersections and a plurality of detection regions that are respectively arranged on the intersections, wherein each of the detection regions is selectively recognizable between (a) an unoccupied mode when none of the game pieces are placed thereon and (b) an occupied mode when one of the game pieces is placed thereon;
a plurality of optically identifying modules facing an inner surface of the go board and respectively corresponding in position to the detection regions, wherein each of the optically identifying modules includes:
a light emitter configured to emit light toward the corresponding detection region; and
a light receiver corresponding in position to the light emitter;
wherein the go board is configured to allow a light emission from the light emitter of the optically identifying modules to pass through one of the corresponding detection regions; and
wherein, when one of the detection regions is in the occupied mode, the light receiver of the corresponding optically identifying module receives the light emission that is emitted from the light emitter of the corresponding optically identifying module and that is reflected by the corresponding game piece, and reads a reflected luminance value;
a processing module electrically coupled to the optically identifying modules so as to enable the processing module to transmit the reflected luminance value emitted from each of the optically identifying modules; and
a calibration button electrically coupled to the processing module, wherein the processing module is configured to determine a stone type of any one of the game pieces occupying one of the corresponding detection regions based on one of two types of the reflected luminance value;
wherein, before the go board device is used in cooperation with the game pieces, one of the detection regions allows one of the black pieces and one of the white pieces to be placed thereon in turns, and the calibration button is pressable to allow the processing module to drive the light receiver of the corresponding optically identifying module to receive the light emission from the light emitter of the corresponding optically identifying module, so that the optically identifying modules obtains reflected luminance values of the one of the black pieces and the one of the white pieces, thereby enabling luminance contrast calibration for the game pieces.