To objectively recognize the state of holding of game media by players not only for each game machine but for each game machine island and for a game parlor on the whole, and to evaluate a game machine in which the play is continued without exchange of game media.
The management device is adapted to totalize and manage game data based on game signals input when game machines are operated. The management device includes an exchange timing specifying means for specifying the timing of exchange of game media; a held game medium number specifying means for specifying the number of game media held by players based on the timing of exchange and the transition of the difference obtained by subtracting the out number indicating the number of loaded game media from the safe number indicating the number of put-out game media; and a special ball index computing means for computing the special ball index indicating the ratio of the held game media to the number of prizes which is the number of game media acquired as prizes.
| JP2007252797A | 2007-10-04 | |||
| JP2007215959A | 2007-08-30 | |||
| JP2007105294A | 2007-04-26 | |||
| JP2004248919A | 2004-09-09 | |||
| JPH0724123A | 1995-01-27 |
Okano Isao
Tetsuya Imai