Qpsx Development 5 PTY Ltd v. Juniper Networks, Inc. et al, No. 2:05-cv-00268 (E.D. Tex. Jan. 10, 2007)

From the Opinion

The passage below is extracted verbatim from the opening of the document. It has not been editorially summarized — consult the full opinion for the court's complete reasoning.

I. Introduction This opinion resolves the parties’ claim construction disputes. Plaintiff QPSX Developments 5 Pty Ltd. (“QPSX”) accuses Juniper Networks, Inc., Nortel Networks, Inc., Lucent Technologies, Inc., Cisco Systems, Inc., and Alcatel USA, Inc. of infringing United States Patent No. 5,689,499 (“the ‘499 patent”) entitled “Method and Apparatus for Managing the Statistical Multiplexing of Data in Digital Communication Networks.” The asserted claims are claims 1-3 and 11-13 of the ‘499 patent. II.