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.
Patent No.:
Date of Patent:
Sep. 29, 2009
Filed:
Sep. 24, 2004
David Francis Bacon, Sleepy Hollow, NY (US);
Perry Sze-din Cheng, New City, NY (US);
David Paul Grove, Ridgefield, CT (US);
David Francis Bacon, Sleepy Hollow, NY (US);
Perry Sze-Din Cheng, New City, NY (US);
David Paul Grove, Ridgefield, CT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A system includes a processor for executing a collector program to perform a method (e.g., a method of collection). The method includes using an object model during a collection phase that is different than an object model used during program execution. The processor may also perform a method including assigning a hash code to at least some objects, and consulting a structure that maintains a mapping of objects to hashcode values to determine said hashcode for one of said objects. The processor may also perform a method including storing a class pointer and garbage collector state information in a single word, and accessing said class pointer by masking out non-class bits.