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Apparatus and method for retrieving data from a joystick

  • US 5,706,029 A
  • Filed: 03/15/1995
  • Issued: 01/06/1998
  • Est. Priority Date: 03/15/1995
  • Status: Expired due to Term
First Claim
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1. A method for retrieving data from at least one joystick connected to a video game machine, comprising the steps of:

  • generating a data locking signal to said at least one joystick in order to lock multiple bits of data in said at least one joystick in response to a data read signal supplied by a video game machine by comparing a preset parameter representing the number of said at least one joystick and a number of times of receiving said data read signal, and then generating said data locking signal when said preset parameter is equal to the number of times of receiving said data read signal;

    generating a data retrieving signal which includes a plurality of consecutive pulses to said at least one joystick to retrieve said multiple bits of data in said at least one joystick in response to said data read signal;

    transferring consecutively said multiple bits of data in said at least one joystick to a data register in response to said data retrieving signal wherein said plurality of consecutive pulses is employed to retrieve said multiple bits of data; and

    supplying said multiple bits of data from said data register to said video game machine in response to said data read signal supplied by said video game machine.

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