System for emulating multi-tasking pipelines in a single tasking

Details System for emulating multi-tasking pipelines in a single tasking System for emulating multi-tasking pipelines in a single tasking

1993-06-15

1995-03-07

Kim, Ken S.

Boots, shoes, and leggings

3642318, 3642817, 364DIG1, 395650, 395700, G06F 9455

Patent

active

053966163

ABSTRACT:
A control system emulates a multi-tasking environment using a single tasking processor. A number of predefined tasks are provided in a task library. When a host application needs processed data from a data source, the host application creates a pipeline of initialized instantiations of one or more of the tasks from the task library. When the host application invokes the pipeline, the data request is made from the host application to a downstream-most section of the pipeline. The data request ripples upstreamwardly to the upstream-most instantiation of one of the tasks from the task library. The upstream-most instantiation of a task obtains data from a data source and returns it downstreamwardly to the host application, each instantiation of a task from the task library further operating on the data.

REFERENCES:
patent: 3909797 (1975-09-01), Goss et al.
patent: 4296470 (1981-10-01), Fairchild et al.
patent: 4486831 (1984-12-01), Wheatley et al.
patent: 4488227 (1984-12-01), Miu et al.

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