TruePosition Inc. v. Andrew Corp.

507 F. Supp. 2d 447, 2007 U.S. Dist. LEXIS 62710, 2007 WL 2482163
CourtDistrict Court, D. Delaware
DecidedAugust 23, 2007
DocketCiv. 05-747-SLR
StatusPublished
Cited by2 cases

This text of 507 F. Supp. 2d 447 (TruePosition Inc. v. Andrew Corp.) is published on Counsel Stack Legal Research, covering District Court, D. Delaware primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
TruePosition Inc. v. Andrew Corp., 507 F. Supp. 2d 447, 2007 U.S. Dist. LEXIS 62710, 2007 WL 2482163 (D. Del. 2007).

Opinion

MEMORANDUM OPINION

SUE L. ROBINSON, District Judge.

I. INTRODUCTION

Plaintiff TruePosition, Inc. (“plaintiff’) filed this patent infringement action against Andrew Corporation (“defendant”) on October 25, 2005, alleging infringement of plaintiffs U.S. Patent No. 5,327,144 (“the '144 patent”). (D.I.l) Plaintiff alleges that defendant’s system for locating cellular telephones, called the Geometrix® Wireless Location System, infringes claims 1, 2, 22, 31 and 32 of the '144 patent. Pending before the court are plaintiffs motions for summary judgment of validity of the '144 patent (D.I.134) and on defendant’s counterclaims 11-VI and third through fifth affirmative defenses (D.I. 137). Also pending before the court are defendant’s motions for summary judgment of invalidity of claim 22 of the '144 patent for indefiniteness (D.I.145) and non-infringement of the '144 patent (D.I.147). The court has jurisdiction over these matters pursuant to 28 U.S.C. § 1338.

II. BACKGROUND

A. Technology at Issue

Cellular telephone networks typically include several antennas mounted on towers, known as “cell sites” or “base stations.” (’144 patent, fíg. 1C, col. 1, II. 32-65) These cell cites are assigned a hexagonal-shaped service area, called a “cell.” (Id.) Cellular telephones communicate with cell sites using two types of wireless “channels”: control channels and voice channels. (’144 patent, col. 2, II. 3-8) Control channels typically carry information to control the operations of the network, for example, information for establishing a voice communication link between the cellular telephone and the network. (T44 patent, col. 3, II. 17-40) Voice channels carry user data, or the voice signals that a user generates during a call. (D.I. 148 at 7; D.I. 162 at 7) Channels that transmit information from a cell site to a cellular telephone are called “forward channels,” while channels that transmit information from a cellular telephone to a cell site are called “reverse channels.” (T44 patent, col. 2, II. 15-19) Cellular networks use different protocols for describing how information is transmitted between a cellular telephone and a cell site. In Global System for Mobile Communications (“GSM”) cellular networks, control channels are known as stand-alone dedicated control channels (“SDC” chan- *453 neis); voice channels are called traffic channels (“TCH” channels). (D.I. 171 at B97-98, B101)

B. The'144 Patent

The application leading to the '144 patent was filed May 7, 1993; the '144 patent issued July 5, 1994. The '144 patent generally relates to a cellular telephone location system for automatically recording the location of mobile cellular telephones having several cell site locations. Asserted claims 1, 22, and 31 are independent claims which describe, in most general terms, a location system, a ground-based location system, and a method for determining the location of cellular telephones. Each asserted claim requires that signals be transmitted over a prescribed set of “reverse control channels.”

C. Defendant’s Geometrix® Product

Uplink Time Difference of Arrival (“UT-DOA”) is a network-based means of determining a cellular telephone’s position by comparing and calculating the difference in time required for the cellular telephone’s signal to reach different cell sites. 1 In the mid-1990s, defendant’s predecessor, Allen Telecom LLC (“Allen”), 2 began marketing and selling a “TDOA-based” cellular telephone system called “Geometrix” that was used for E-911 3 purposes. Defendant currently markets and sells geolocation products under the Geometrix® brand name for security and law enforcement purposes. Defendant’s Geometrix® system comprises a “positioning determining entity” (“PDE”) that is overlaid on regular cellular network equipment. Using a UT-DOA technique, the Geometrix® PDE locates signals sent over a SDC channel (when a user is not on a call) or a TCH channel (when a user is on a call). 4 (D.I. 199 at 15; D.I. 167 at B538) Plaintiff asserts that the geolocation of cellular telephones using the SDC channel infringes the '144 patent. 5

D.3GPP & “Essential IPRs”

The Third Generation Partnership Project (“3GPP”) is an international standardization body in the cellular telephone industry. Both plaintiff and defendant have participated in 3GPP through one of its five recognized organization partners, the European Telecommunications Standards Institute (“ETSI”). 3GPP prepares, approves and maintains “Technical Specifications” and “Technical Reports” (known generally as “standards”) for various cellular telephone systems. ETSI has an intellectual property rights (“IPR”) policy which states that each member must timely inform ETSI of any “essential IPRs”; an IPR is “essential” when it is not technically possible to implement a standard *454 without infringing that intellectual property. (D.I. 140 at A142, A146)

UTDOA was, at one time, part of a 3GPP standard, but was subsequently removed. (D.I. 161 at B21) Plaintiff sought to re-standardize UTDOA in the 3GPP technical specifications, presumably because standardization would result in an increase in sales of its UTDOA products. Plaintiff allocated significant resources to advocating for UTDOA standardization in the 2001-2002 timeframe, including hiring two full-time employee-advocates to attend worldwide 3GPP meetings. {Id., ex. B, D)

Plaintiff formally became an ETSI member in January 2002 (D.I. 161 at B92) and, thereafter, submitted a feasability study on UTDOA in GSM cellular networks (Id. at B94-111). The feasability study submitted by plaintiff to ETSI discussed the location of mobile phones using the SDC channel. (Id. at B103) Defendant, thereafter, joined ETSI and worked extensively with plaintiff to get UTDOA standardized. Plaintiff has never declared the '144 patent essential to any 3GPP standard.

E. Prior Litigation

On December 21, 2000, plaintiff (and its wholly owned subsidiary, KSI, Inc. (“KSI”)) filed an action in this district alleging infringement of the '144 patent and other patents by SigmaOne Communications Corporation (“SigmaOne”). TruePosition Inc., v. SigmaOne Corp., No. Civ. A. 00-1066-GMS (D.Del.). On November 13, 2001, by stipulation of the parties, the court in that action entered a consent judgment and order stating, inter alia, that: (1) the '144 patent is valid; (2) the accused SigmaOne products infringed the '144 patent; (3) SigmaOne and its affiliates are permanently enjoined from making, using, selling, or importing the accused products; and (4) plaintiff will not seek damages arising out of past infringements. Id. (D.I.50) (available in the case at bar at D.I. 43, ex. 6)

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507 F. Supp. 2d 447, 2007 U.S. Dist. LEXIS 62710, 2007 WL 2482163, Counsel Stack Legal Research, https://law.counselstack.com/opinion/trueposition-inc-v-andrew-corp-ded-2007.