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:
Oct. 02, 2012
Filed:
Feb. 09, 2010
Xinwei Han, Shenzhen, CN;
Wan Lam, Shenzhen, CN;
Naidong Ning, Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A method and apparatus for allocating storage addresses are disclosed. The method includes: receiving a storage address allocation request; searching a level-2 bitmap in a hierarchical bitmap in bidirectional mode; outputting an idle bit according to the result of searching in the level-2 bitmap; obtaining a storage address according to the output idle bit, and allocating the storage address. The apparatus includes: a first receiving module, configured to receive a storage address allocation request; a first searching module, configured to search a level-2 bitmap in a hierarchical bitmap in bidirectional mode for an idle bit, wherein the hierarchical bitmap includes N level-1 bitmaps and the level-2 bitmap; and an allocating module, configured to: obtain a storage address according to the output idle bit in the level-2 bitmap, and allocate the obtained storage address.