公开(公告)号：EP1575684A2

公开(公告)日：2005-09-21

申请号：EP03779352.8

申请日：2003-10-28

申请人： MATTEL, INC.

发明人： PYRCE, Philip, R.

IPC分类号： A63H1/00

CPC分类号： A63H18/02 ,  A63H19/30

摘要： A track section (200) includes a body (202) having a coupling portion (204, 206). In one embodiment, the coupling portion includes a projection (262) extending outwardly from the coupling portion and a recess (234) extending inwardly into the coupling portion. In one embodiment, the recess (234) extends downwardly through the coupling portion. In another embodiment, the recess (234) extends from an upper surface of the body to a lower surface of the body.

公开(公告)号：EP1508132A1

公开(公告)日：2005-02-23

申请号：EP03756277.4

申请日：2003-05-30

申请人： MATTEL, INC.

发明人： ERNST, Stephen, M. ,  TAYLOR, John, W. ,  GALARNEAU, Dagan ,  HOPPY, Joseph, E. ,  BISHOP, James, A., Jr. ,  PYRCE, Philip, R. ,  MEADE, James, P.

IPC分类号： G09B5/00

CPC分类号： G09B5/06

摘要： An electronic learning/teaching device (100) operates with and without a printed sheet element (20) having an arrangement of selectable content by means of a user responsive sensor array (142) beneath a surface (130) configured to receive the element. The sensor array is formed by cross-points of two sets of crossing conductive lines (246, 248), one set being driven sequentially with a radio frequency square wave and the other set being sampled sequentially though a high impedance amplifier connection with an asynchronous detection circuit. Where more than one cross-point location is user activated, algorithms (Fig. 12) are used to identify one cross-point sensor location as the user activated selection.

公开(公告)号：EP1575684B1

公开(公告)日：2009-12-02

申请号：EP03779352.8

申请日：2003-10-28

申请人： MATTEL, INC.

发明人： PYRCE, Philip, R.

IPC分类号： A63H18/02 ,  A63H19/30

CPC分类号： A63H18/02 ,  A63H19/30