| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic logic device in which a logic circuit is suitably structured relatively inexpensively. SOLUTION: An electronic logic device 30 has clock contact points K<SB>W</SB>, K<SB>N</SB>, K<SB>E</SB>and K<SB>S</SB>, input contact points U<SB>W</SB>, U<SB>N</SB>, U<SB>E</SB>and U<SB>S</SB>, and output contact points Q<SB>W</SB>, Q<SB>N</SB>, Q<SB>E</SB>and Q<SB>S</SB>. The device includes: a logic block 76 and 78 having four inputs, a clocking input CLK connected to the clock contact points K<SB>W</SB>, K<SB>N</SB>, K<SB>E</SB>and K<SB>S</SB>, and an output Q connected to the output contact points Q<SB>W</SB>, Q<SB>N</SB>, Q<SB>E</SB>and Q<SB>S</SB>; four three-state switches S<SB>W</SB>, S<SB>N</SB>, S<SB>E</SB>and S<SB>S</SB>each having a center connector connected to a first input, and first, second and third terminals. The first terminal is connected to a supply voltage VCC. The second terminal is connected to one of the input contact points U<SB>W</SB>, U<SB>N</SB>, U<SB>E</SB>and U<SB>S</SB>. The third terminal is connected to ground level. The device further includes four switch controllers that controls the state of the three-state switches S<SB>W</SB>, S<SB>N</SB>, S<SB>E</SB>and S<SB>S</SB>. COPYRIGHT: (C)2007,JPO&INPIT
|
