发明名称 Shape Control of Magnetic Fields for Table Games
摘要 A gaming table with an upper surface that includes a gaming chip placement area and a lower surface opposite the upper surface is provided. The gaming table also includes a housing coupled to one of the upper surface and the lower surface of the gaming table, an antenna coupled to the housing, wherein the antenna is configured to form an electromagnetic field that defines a zone of communication in which a gaming chip including a radio frequency identification (RFID) tag can be read. The gaming table also includes a substantially-contiguous highly permeable magnetic material layer coupled to the antenna, the highly permeable magnetic material layer defining an outermost boundary of the zone of communication of the antenna, such that a strength of the electromagnetic field at any region beyond the defined boundary of the zone of communication is below a threshold level for communication with an RFID gaming chip, and a reading device coupled to the housing, wherein the RFID reading device is configured to read data transmitted by an RFID gaming chip when the RFID gaming chip is in the zone of communication. 0,, 0 w z0 3:
申请公布号 AU2010227090(B2) 申请公布日期 2014.09.11
申请号 AU20100227090 申请日期 2010.10.11
申请人 IGT 发明人 THORSON, MICHAEL ERNEST;MINCK JR., JOHN LAURENCE
分类号 A63F1/00;A63F1/06 主分类号 A63F1/00
代理机构 代理人
主权项
地址