General-purpose functional circuit and general-purpose unit...

Details General-purpose functional circuit and general-purpose unit... General-purpose functional circuit and general-purpose unit...

2006-05-23

2006-05-23

Knight, Anthony (Department: 2121)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Having specialized input

C700S002000, C700S019000, C700S020000, C710S011000, C710S014000, C709S217000, C709S220000, C709S223000, C709S224000, C709S225000

Reexamination Certificate

active

07051057

ABSTRACT:
A general-purpose functional circuit for a programmable controller, comprising: an external connector which is connected to an external appliance to be controlled; an interconnecting connector which is connected to at least a CPU unit of the programmable controller; and an arithmetic processing member which has at least a function of transmitting to and receiving from the external appliance connected to the arithmetic processing member through the external connector, signals and performing a logical operation based on an external signal received from the external appliance so as to transmit to the CPU unit via the interconnecting connector, a logical operation signal corresponding to a result of the logical operation; wherein the CPU unit includes a CPU for executing a sequence program.

REFERENCES:
patent: 4498151 (1985-02-01), Henry
patent: 5475583 (1995-12-01), Bock et al.
patent: 5731712 (1998-03-01), Welch
patent: 5819050 (1998-10-01), Boehling et al.
patent: 5978593 (1999-11-01), Sexton
patent: 6745090 (2004-06-01), Malizia, Jr.
patent: 2001/0034830 (2001-10-01), Seki et al.
patent: 0434288 (1991-06-01), None
patent: 0620510 (1994-10-01), None
English Language Abstract of EP 0 620 510.

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