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. 11, 2011
Filed:
Jun. 26, 2002
Tienyu Chiu, Naperville, IL (US);
Tienyu Chiu, Naperville, IL (US);
Alcatel Lucent, Paris, FR;
Abstract
A method for supporting communication between communication devices () having inconsistent protocols, such as may result from protocol changes or upgrades. Protocol registers () maintained in association with the communication devices contain respective first and second protocols (e.g., current and previous protocols) of the communication devices. A sending (or receiving) device, upon being upgraded from protocol C to N, updates () its protocol register to indicate N as the current protocol and C as the previous protocol. The device initially attempts to send () a message (or attemptsto recognize a message) using its current protocol N and, if that fails, the device sends () (or attemptsto recognize the message) using its previous protocol C. In such manner, when a communication device is upgraded to a new protocol causing a protocol inconsistency with a peer device, the communication device may revert to its previous protocol to restore communication relatively quickly.