The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 15, 2000

Filed:

Aug. 27, 1998
Applicant:
Inventor:

Hideaki Okamura, Tokyo, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
709104 ;
Abstract

The present invention realizes a pure object-oriented operating system that allows a flexible system configuration and lowers the number of context-switches. The realization method in the present invention is: when a message sending source object executes a specified method to send a message to a message-destination object, first, execution of the message-sending source object is discontinued and context data corresponding to the message-sending source object is modified to indicate that execution is discontinued. Then, a specified module containing descriptions of message-sending related procedures is invoked and one of said procedures that corresponds to the specified method is executed to retrieve the context data of the message-destination object. Then, the context data found in the above retrieval is modified to indicate that the object corresponding to the context data is under execution, and the message is passed from the message-sending source to the message destination object.


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