Data processing: generic control systems or specific application – Specific application – apparatus or process – Chemical process control or monitoring system
Reexamination Certificate
2005-03-15
2005-03-15
Warden, Jill (Department: 1743)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Chemical process control or monitoring system
C422S068100, C422S107000, C422S050000, C436S043000, C436S050000, C436S052000, C436S063000, C436S066000, C702S108000, C702S116000, C702S117000, C702S118000, C702S120000, C700S001000, C700S002000, C700S005000, C700S011000, C700S014000, C700S017000, C700S018000, C700S019000, C700S020000, C700S021000, C700S023000, C700S025000, C700S026000, C700S027000, C700S266000, C700S292000, C700S296000
Reexamination Certificate
active
06868309
ABSTRACT:
A method and control system computing platform for a dialysis machine that uses Symmetric Multi-Processing (SMP) architecture. The SMP architecture tightly couples multiple (e.g., 2) independent processors by sharing memory between the processors. A single shared memory is used by both processors in order to facilitate communication between the processors and reduce cost by eliminating the expense of redundant memory. In this way, the two, or in general “N” processors, increase processor throughput by allowing the execution of N processes in parallel while without requiring extra memory and without having a single point of failure in the computer. In the event of a bus failure on the circuit card, the computer is reset using distributed hardware watchdogs. The watchdog reset signal is also sent to the hardware components of the dialysis machine in order to place the system in a safe.
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Aksys Ltd.
McDonnell Boehnen & Hulbert & Berghoff LLP
Sines Brian
Warden Jill
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