Source: http://www.google.com/patents/US8019081?dq=7,599,983
Timestamp: 2015-07-01 00:02:52
Document Index: 168022344

Matched Legal Cases: ['application No. 2005204223', 'Application No. 04103998', 'application No. 200510095984', 'Application No. 02817741', 'application No. 04104240', 'application No. 10', 'Application No. 02754007', 'Application No. 02752898', 'Application No. 02752898', 'Application No. 02752898', 'Application No. 02754007', 'Application No. 02754007', 'Application No. 08154580', 'Application No. 05826460', 'Application No. 05826460', 'Application No. 05826460', 'application No. 200505340', 'Application No. 02819798', 'Application No. 200810009944', 'Application No. 2003', 'Application No. 2005', 'Application No. 2006', 'Application No. 10', 'Application No. 02819798', 'Application No. 2', 'Application No. 2005', 'Application No. 2003', 'Application No. 02817741', 'Application No. 2', 'Application No. 2', 'Application No. 2', 'Application No. 2', 'Application No. 2', 'art 3', 'art 3', 'Application No. 02817741', 'Application No. 02817741', 'Application No. 02819798', 'Application No. 200810009944', 'application No. 200505624']

Patent US8019081 - System and method for processing encoded messages - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsSystems and methods for processing encoded messages at a message receiver. A received encoded message is decoded and stored in a memory. The stored decoded message can subsequently be displayed or otherwise processed without repeating the decoding operations. Decoding operations may include signature...http://www.google.com/patents/US8019081?utm_source=gb-gplus-sharePatent US8019081 - System and method for processing encoded messagesAdvanced Patent SearchPublication numberUS8019081 B2Publication typeGrantApplication numberUS 10/486,406PCT numberPCT/CA2002/001225Publication dateSep 13, 2011Filing dateAug 6, 2002Priority dateAug 6, 2001Fee statusPaidAlso published asCA2456839A1, CA2456839C, CN1565112A, CN100380895C, CN101232504A, CN101232504B, DE60229645D1, EP1417814A2, EP1417814B1, US8661267, US20040202327, US20110320807, WO2003015367A2, WO2003015367A3Publication number10486406, 486406, PCT/2002/1225, PCT/CA/2/001225, PCT/CA/2/01225, PCT/CA/2002/001225, PCT/CA/2002/01225, PCT/CA2/001225, PCT/CA2/01225, PCT/CA2001225, PCT/CA2002/001225, PCT/CA2002/01225, PCT/CA2002001225, PCT/CA200201225, PCT/CA201225, US 8019081 B2, US 8019081B2, US-B2-8019081, US8019081 B2, US8019081B2InventorsHerbert A. Little, Michael S. BrownOriginal AssigneeResearch In Motion LimitedExport CitationBiBTeX, EndNote, RefManPatent Citations (119), Non-Patent Citations (125), Referenced by (1), Classifications (30), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetSystem and method for processing encoded messages
This application claims priority to U.S. provisional application Ser. No. 60/310,330 (entitled “System and Method for Processing Encoded Messages” filed Aug. 6, 2001). By this reference, the full disclosure, including the drawings, of U.S. provisional application Ser. No. 60/310,330 is incorporated herein.
In many known secure message exchange schemes, signatures, encryption, or both are commonly used to ensure the integrity and confidentiality of information being transferred from a sender to a recipient. In an e-mail system for example, the sender of an e-mail message could either sign the message, encrypt the message or both sign and encrypt the message. These actions may be performed using such standards as Secure Multipurpose Internet Mail Extensions (S/MIME), Pretty Good Privacy™ (PGP™), OpenPGP and many other secure e-mail standards.
FIG. 1 is an overview of an example communication system in which a mobile device may be used. One skilled in the art will appreciate that there may be hundreds of different topologies, but the system shown in FIG. 1 helps demonstrate the operation of the encoded message processing systems and methods described in the present application. There may also be many message senders and recipients. The system shown in FIG. 1 is for illustrative purposes only, and shows perhaps the most prevalent Internet e-mail environment where security is not generally used.
The central host system 30 will typically be a corporate office or other LAN, but may instead be a home office computer or some other private system where mail messages are being exchanged. Within the host system 30 is the message server 40, running on some computer within the firewall of the host system 30, that acts as the main interface for the host system 30 to exchange e-mail with the Internet 20. In the system of FIG. 2, the redirection program 45 enables redirection of data items from the server 40 to a mobile device 100. Although the redirection program 45 is shown to reside on the same machine as the message server 40 for ease of presentation, there is no requirement that it must reside on the message server 40. The redirection program 45 and the message server 40 are designed to co-operate and interact to allow the pushing of information to mobile devices 100. In this installation, the redirection program 45 takes confidential and non-confidential corporate information for a specific user and redirects it out through the corporate firewall to mobile devices 100. A more detailed description of the redirection software 45 may be found in the commonly assigned U.S. Pat. No. 6,219,694 (“the '694 Patent”), entitled “System and Method for Pushing Information From A Host System To A Mobile Data Communication Device Having A Shared Electronic Address”, and issued to the assignee of the instant application on Apr. 17, 2001, and U.S. patent application Ser. No. 09/401,868, Ser. No. 09/545,963, Ser. No. 09/528,495, Ser. No. 09/545,962, and Ser. No. 09/649,755, all of which are hereby incorporated into the present application by reference. This push technique may use a wireless friendly encoding, compression and encryption technique to deliver all information to a mobile device, thus effectively extending the security firewall to include each mobile device 100 associated with the host system 30.
FIG. 3 illustrates receipt of the entire message on each mobile device 100. Before the message is sent to a mobile device 100, the signature or encryption sections of the message may instead be re-organized and only the necessary portions sent to each mobile device 100, as described in detail in U.S. patent applications, Ser. No. 60/297,681, titled “An Advanced System and Method for Compressing Secure E-Mail for Exchange with a Mobile Data Communication Device”, filed on Jun. 12, 2001, and Ser. No. 60/365,535, titled “Advanced System And Method For Compressing Secure E-Mail For Exchange With A Mobile Data Communication Device”, filed on Mar. 20, 2002, both assigned to the assignee of the present application and incorporated in their entirety herein by reference. These earlier applications disclose several schemes for rearranging secure messages and limiting the amount of information sent to a mobile device. For example, in accordance with one scheme described in the above applications, the message server system determines the appropriate session key for each mobile device and sends only that encrypted session key with the message to the mobile device. The above applications also disclose techniques for limiting signature-related information that is to be sent to a mobile device with an encrypted and signed message. For example, a message server may verify digital signature in a signed message and send the mobile device the result of the verification.
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Soc, US Oct. 19, 1999, pp. 372-377, XP010357040 ISBN: 978-0-7695-0290-8 *the whole document*.* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS8661267Sep 9, 2011Feb 25, 2014Blackberry LimitedSystem and method for processing encoded messagesClassifications U.S. Classification380/270, 713/193International ClassificationH04K1/00, G06F11/30, H04L12/58, G06F12/14, H04L12/28, H04L9/32, H04L12/56, H04L29/06Cooperative ClassificationH04L69/22, H04L9/3247, H04L51/22, H04W12/02, H04W28/14, H04L9/3268, H04L63/0428, H04L63/12, H04L51/38, H04L63/045, H04L2209/80, H04L63/062, H04W12/10, H04W12/04, H04L2209/60European ClassificationH04W12/02, H04L9/32S, H04L12/58W, H04L63/04B4, H04L63/04BLegal EventsDateCodeEventDescriptionFeb 6, 2004ASAssignmentOwner name: RESEARCH IN MOTION LIMITED, CANADAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LITTLE, HERBERT A.;BROWN, MICHAEL S.;REEL/FRAME:015500/0443Effective date: 20020806Jun 11, 2014ASAssignmentOwner name: BLACKBERRY LIMITED, ONTARIOFree format text: CHANGE OF NAME;ASSIGNOR:RESEARCH IN MOTION LIMITED;REEL/FRAME:033134/0228Effective date: 20130709Mar 13, 2015FPAYFee paymentYear of fee payment: 4RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services