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Controlling one computer by another

Originally the claims covered systems like RPC, Telnet and all kinds of client-server computing. After 10 years of examination, in 1995, the EPO granted a version with greatly reduced claims to Wang Laboratories. Now the patent seems to covers all remote procedure call systems where variables are stored in the protocol rather than transmitted separately for each procedure.

EC Class:

G06F13/38A4 ; G06F9/46R6P

IP Class:

G06F9/46 ; G06F15/16

priority date:

US19850708327 19850305

application number:

EP19860102853 19860305

requested:

[_] EP0193933, A3, B1

applicant:

WANG LABORATORIES (US)

inventor:

QUINT JEANNE MARIE; TOMASZEWSKI ISABEL BARBARA

publication date:

1986-09-10

patent number:

EP0193933

Name of the Invention:

Apparatus for control of one computer system by another computer system.

Claim 1:

A digital data processing system which has a destination data processing means coupled by message transport means to a source data processing meansand wherein the source data processing means has remote call providing means for providing a remote call to a callable program in the destination data processing means, and the destination data processing means has remote call receiving means for receiving the remote call and performing a call to the callable program, and comprises a call protocol which is produced by the remote call providing means in the source data processing means, transferred via the message transport means to the destination data processing means, and which is received by the remote call receiving means and the call protocol includes a program identifier and call parameters for specifying the callable program, characterized in that

each call protocol may contain an option part containing one or more optional items, said item not being required in every call to the callable program but being used by the remote call receiving means in making the call when the optional items are present in the protocol,
each optional item including a parameter value and an item tag specifying the use of the parameter value in the call,
the remote call receiving means using each optional item's parameter value in the call as specified by the optional item's tag.

patent application (A):

claims, description and abstract

granted version (B1):

The EPO publishes the patent as a collection of graphical files, which we concatenate into one huge PDF file and, by OCR batch processing, reduce to a text file.