×

Distributed real-time operating system providing integrated interrupt management

  • US 6,633,942 B1
  • Filed: 09/30/1999
  • Issued: 10/14/2003
  • Est. Priority Date: 08/12/1999
  • Status: Expired due to Term
First Claim
Patent Images

1. An interrupt manager for use with a processor in a distributed control system, the interrupt manager comprising:

  • (a) interrupt reception circuitry receiving interrupt signals including a current interrupt;

    (b) an interrupt window counter storing an interrupt window indicating time available for processing of interrupts;

    (c) a timer refreshing the interrupt window counter at expiration of a window period; and

    (e) a masking circuit masking a current interrupt when the interrupt window counter indicates that the processing of the current interrupt would exceed the interrupt window in the current window period.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×