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:
Nov. 13, 2001
Filed:
Jul. 26, 1999
Patrick L. Rakers, Kildeer, IL (US);
Timothy James Collins, Lockport, IL (US);
Daniel J. Russell, Woodstock, IL (US);
Sam DiRaimondo, Cary, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A portable data device (,) having a memory (,) is provided. The memory (,) is segmented into a plurality of sectors (,). A backup memory buffer (,) and a plurality of applications (,) are programmed into the plurality of sectors, wherein the backup memory buffer (,) is jointly used by the plurality of applications (,). A valid state of data is stored in the backup memory buffer (,) prior to performing a transaction for a first application (,). The valid state of data is restored in the first application (,) upon power up of the portable data device (,) in an event the transaction is terminated prior to completion, wherein the step of restoring is independent of a next application in which a next transaction is performed.