Re: EPA-Patent auf entfernte Funktionsaufrufe (rpc, telnet etc)

[PILCH Hartmut <phm@a2e.de>]

> Telnet, SSH, X-Window-System, SSH, rlogin und MS Terminal Server,
> Webserver mit CGI-Interface und alle anderen Mechanismen, mit denen ein
> Programm auf einem entfernten Computer aufgerufen werden kann, sind
> patentiert, falls ich dieses Patent richtig verstanden habe: 
> 
> APPARATUS FOR CONTROL OF ONE COMPUTER SYSTEM BY ANOTHER COMPUTER SYSTEM
> 
> http://l2.espacenet.com/dips/viewer?PN=EP0193933&CY=ep&LG=en&DB=EPD
> 
> Da Computertastaturen auch eine CPU enthalten, fällt möglicherweise auch
> die Verbindung zwischen PC und Tastatur unter dieses Patent.

Mir scheint es eher so etwas wie RPC, CORBA etc (entfernter
Funktionsaufruf) zu betreffen.  Zumindest der Hauptanspruch ist so breit,
dass Telnet nur unter ferner liefen mit umfasst ist.

Das Patent hat gewisse Chancen auf Durchsetzung, denn es ist von 1986.
Hier die Ansprueche:

                                   Claims

  Claims

  1. Apparatus for control of a first computer (231) system responsive to
  callable programs (205) by a second computer system (233) connected by

	"responsive to callable programs by a xxx" 

scheint mir grammatisch holprig und daher unverstaendlich.
Vermutlich ist 

	"responsive to programs callable by a xxx"

oder

	"responsive to programs calling from a xxx"

gemeint.

  message transport means (210, 213) to the first computer system,
  characterized by 1. message providing means (227) in the second
  computer system for providing a call message (215) specifying a
  callable program in the first computer system to the message transport
  means, and 2. message interpretation means (211) in the frist computer
  system for receiving the call message from the message transport means
  and calling the callable program specified in the call message.

  2. Control apparatus of claim 1 characterized in that the call message
  (215) further contains call data (239) for use in calling the specified
  callable program (205), and the message interpretation means (211) uses
  the call data (239) in calling the specified callable program.

  3. Control apparatus of claim 1 or 2, characterized in that the message
  interpretation means (2t1) in the first computer system (231) provides
  a retum message (217) containing the result of the call of the callable
  program to the message transport means, and the message providing means
  (217) in the second computer system (233) receives the return message
  from the message transport means 4. Control apparatus of claim 3,
  characterized in that the message providing means (227) in the second
  computer system (233) is a processor means (221) executing a callable
  program (205); and the processor means executes a return operation
  after receiving the retum message (217).

  5. Control apparatus of claim 3 or 4, characterized in that the retum
  message (217) further contains retum data (243).

  6. Control apparatus of claim 5, characterized in that the message
  providing means (227) in the second computer system (233) is a
  processor means (221) executing a callable program (205), and the
  processor means provides the return data (243) to the calling program
  and executes a retum operation.

  7. Control apparatus of any of claims l to 6, characterized in that the
  callable programs (205) include system programs.

  8. Control apparatus of claim 1, characterized in that the callable
  programs (205) are subdivided into a plurality of sets of callable
  programs; the message interpretation means (211) is subdivided into
  message receiving means (751) and a plurality of server means (771,
  773) corresponding to the plurality of sets of callable programs; the
  message providing means (227) further provides a server specifier
  message (607) specifying one of the server means prior to the call
  message; the message receiving means (751) responds to the server
  specifier message by slecting one of the server means (771, 773); and
  the selected server means responds to the call message by calling the
  specified callable program (205).

  9. Control apparatus of claim 8, characterized in that the server means
  include system server means (773) for calling specified system programs
  and user server means (771) for calling specified user programs.

  10. Apparatus for mutual control of a first computer system (301)
  responsive to first callable programs (311) and a second computer
  system (303) responsive to second callable programs (337), the first
  and second computer systems being connected by message transfer means
  (325), characterized by 1. first message providing means (317) in the
  first computer system for providing a first message (215) specifying
  one of the second callable programs to the transport means, 2 second
  message providing means (329) in the second computer system for
  providing a secopnd message (215) specifying one of the first callable
  programs to the transport means, 3. first message interpretation means
  (315) in the first computer system for receiving the second message
  from the transport means and invoking the first callable program
  specified therein, and 4. second message interpretation means (329) in
  the second computer system for receiving the first message from the
  transport means and invoking the second callable program specified
  therein.
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               Data supplied from the esp@cenet database - l2