Patent Yard Sign in
Expired Canadian patentCanada

Data processing apparatus and method employing instruction pipelining

CA 1212477 A · Owner: Prime Computer, Inc. · Inventors: Jones, Walter A.; Ardini, Joseph L. Jr.; Jones, Paul R. Jr.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

data processing system for processing a sequence of program instructions has two independent pipelines, an instruction pipeline and an execution pipeline. Each pipeline has a plurality of serially operating stages. The instruction stages read instructions from storage and form therefrom address data to be employed by the execution pipeline. The execution pipeline receives the address data and uses it for referencing stored data to be employed for execution of the program instructions. Both pipelines operate synchronously under the control of a pipeline control unit which initiates operation of at least one stage of the execution pipeline prior to completion of the instruction pipeline for a …

Read the whole patent

Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted October 7, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 7, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 28, 1984
GrantedOctober 7, 1986
Term endedOctober 7, 2003
Patent numberCA 1212477 A
Classification (IPC)G06F9/30 +1 more

Timeline

Timeline From CIPO dates

1985198719891991199319951997199920012003Application filedJune 28, 1984Patent grantedOct 7, 1986Term endedOct 7, 2003

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.