Expandable controllers capable of connecting in series to a cont

Details Expandable controllers capable of connecting in series to a cont Expandable controllers capable of connecting in series to a cont

1995-05-12

1997-08-05

Harrison, Jessica

Amusement devices: games

Including means for processing electronic data

Player-actuated control structure

273148B, A63F 924

Patent

active

056536372

ABSTRACT:
An expandable controller for a video game machine. The expandable controller is connectable in series to a control deck of a video game machine. The expandable controller includes a keypad. A plurality of key-switches of the keypad generates key-pressed status signals corresponding to key-pressed status of the plurality of key-switches. An input port of a key-pressed status control circuit connected to the keypad receives the key-pressed status signals. The key-pressed status control circuit also receives a locking signal supplied by the control deck. A shift register is provided with a data input port, a clock input port, a reset input port and a data output port. The reset input port of the shift register is connected to the output port of the key-pressed status control circuit for receiving the key-pressed status signals from the keypad. A data read signal supplied by the control deck is inputted to the clock input port of the shift register to retrieve data from the shift register through the data output port.

REFERENCES:
patent: 4588187 (1986-05-01), Dell
patent: 5245320 (1993-09-01), Bouton
patent: 5396225 (1995-03-01), Okada et al.
patent: 5421590 (1995-06-01), Robbins

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