International Business Machines Corporation

Ryan Andrew Sciampancone

Andrew Russell Low

Peter Wiebe Burka

Graeme Johnson

Graham Alan Chapman

Trent Gray-Donald

Peter Duncan Shipton

John Duimovich

Patrick James Mueller

In typical Java and other interpreted programming language environments, the code is stored in ROM in a semi-processed state, .class files containing byte codes. When the device is turned on, a virtual machine resolves references and links the .class file in RAM to permit desired applications to be run. In the invention, the .class files are further pre-processed to select the data which will not change or require updating. This data is packaged into memory image files containing internal data pre-linking this data. The memory image files are stored in ROM and are accessible from ROM by the virtual machine at runtime. Only elements that will be updated, such as the objects themselves, must be instantiated in RAM at runtime. This reduces the amount of RAM needed to run the application. In an environment with memory constraints, the reduction in RAM requirements permits more RAM to be made available for application use.

Packaging memory image files

Growing community of inventors

Ottawa, Canada

Ryan Andrew Sciampancone