06203430 is referenced by 359 patents and cites 27 patents.

An electronic amusement device and a method for operating the device are disclosed. In accordance with one embodiment, a slot machine identifies a tracked symbol and initializes a running count representing active occurrences of the tracked symbol generated during a play session. During the session, the slot machine generates at least one outcome represented by a set of symbols and determines whether the outcome includes an occurrence of a tracked symbol. The slot machine adjusts the running count, increasing the running count to reflect occurrences of the tracked symbol and decreasing the running count to reflect expiration of occurrences of the tracked symbol. Once the running count reaches a predetermined level, the slot machine determines a bonus payout based on the running count.

Title
Electronic amusement device and method for enhanced slot machine play
Application Number
9/164473
Publication Number
6203430 (B1)
Application Date
October 1, 1998
Publication Date
March 20, 2001
Inventor
Magdalena Mik
Greenwich
CT, US
James A Jorasch
Stamford
CT, US
Jay S Walker
Ridgefield
CT, US
Agent
Dean P Alderucci
US
Steven M Santisi
US
Assignee
Walker Digital
CT, US
IPC
A63F 9/24
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