Lear Automotive Dearborn, Inc. v. Johnson Controls, Inc.

696 F. Supp. 2d 863, 2010 U.S. Dist. LEXIS 22619, 2010 WL 931887
CourtDistrict Court, E.D. Michigan
DecidedMarch 11, 2010
DocketCase 04-73461
StatusPublished
Cited by2 cases

This text of 696 F. Supp. 2d 863 (Lear Automotive Dearborn, Inc. v. Johnson Controls, Inc.) is published on Counsel Stack Legal Research, covering District Court, E.D. Michigan primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Lear Automotive Dearborn, Inc. v. Johnson Controls, Inc., 696 F. Supp. 2d 863, 2010 U.S. Dist. LEXIS 22619, 2010 WL 931887 (E.D. Mich. 2010).

Opinion

OPINION AND ORDER REGARDING DEFENDANTS’ MOTION FOR SUMMARY JUDGMENT REGARDING KOOPMAN PATENTS

GERALD E. ROSEN, Chief Judge.

I. INTRODUCTION

In this suit, Plaintiffs Lear Automotive Dearborn, Inc. and Lear Corporation (collectively “Lear”) allege that the “HomeLink” remote-control garage door opener product manufactured and sold by Defendants Johnson Controls, Inc. and Johnson Controls Interiors LLC (collectively “JCI”) infringes several patents owned by Lear. JCI, in turn, has asserted counterclaims of non-infringement and patent invalidity and/or unenforceability against Lear. This Court’s jurisdiction rests upon the parties’ assertion of claims and counterclaims under the federal patent laws, 35 U.S.C. § 1 et seq. See 28 U.S.C. § 1338(a).

Through the present motion, JCI seeks summary judgment in its favor as to its non-infringement of two of the three patents-in-suit, U.S. Patent No. Re. 36,181 and U.S. Patent No. Re. 36,752 (collectively, the “Koopman patents”). 1 In support of this motion, JCI argues that the patent claims asserted by Lear, if properly construed, are not infringed by JCI’s “HomeLink 2” product because this product purportedly lacks a number of features or functions that are required elements of these claims.

This motion has been fully briefed by the parties.. Having reviewed these briefs and their accompanying exhibits, as well as the record as a whole, the Court finds that the relevant allegations, facts, and legal arguments are adequately presented in these written submissions, and that oral argument would not aid the decisional process. Accordingly, the Court will decide JCI’s motion “on the briefs.” See Local Rule 7.1(e)(2), U.S. District Court, Eastern District of Michigan. This opinion and order sets forth the Court’s rulings on this motion.

II. FACTUAL BACKGROUND

In its earlier opinion in this case, the Court described the general nature and contours of the technology at issue, see Lear Automotive Dearborn, 528 F.Supp.2d at 657-58, and this discussion need not be repeated here. Rather, the Court proceeds directly to the salient elements of the two patents at issue in the present motion, as well as the relevant features of JCI’s “HomeLink 2” product.

A. The Koopman Patents

As noted, the present motion concerns two of the three patents-in-suit, U.S. Patent No. Re. 36,181 and U.S. Patent No. Re. 36,752 (the '181 and '752 patents or, collectively, the “Koopman patents”), which Lear owns by virtue of an assignment to Lear’s predecessor-in-interest, United Technologies Automotive. These two patents, generally speaking, disclose methods of cryptographically encoding and authenticating transmissions sent from transmitters to receivers in remote keyless entry (“RKE”) systems for automobiles. These inventions, according to Lear, significantly improved the security of the RKE systems that incorporated them, *865 making it far more difficult to breach these systems. These patents — or, at a minimum, the claims at issue in this case— utilize a “rolling-code” encryption methodology, meaning that the RKE system generates a different encrypted signal each time the user pushes a given button on the transmitter. In addition, the '752 patent addresses the need to ensure that the transmitter, or key fob, in a RKE system remains synchronized with the receiver unit mounted in the automobile, even when, for example, the vehicle owner presses a button on the fob while out of range from the car.

Under the RKE system described by the Koopman patents, each time the user presses a button on the key fob, a command- — e.g., lock or unlock — is sent wirelessly to the vehicle-mounted receiver. Prior to transmission, the command is encrypted at the fob, and the resulting encrypted signal is then sent to the receiver, where it is decrypted and authenticated to verify that the command was received from an appropriate fob. In order to carry out this process of encryption, decryption, and authentication, the Koopman process requires one or more “secret initial values” that are used to form the encrypted transmissions.

Each transmission, or “command word,” consists of a stream of bits, or zeros and ones. As explained by Lear’s expert, Dr. Avi Rubin, each such “command word” contains “all of the information needed to authenticate the request and to know which event to actuate.” (JCI’s Motion, Ex. 4, Rubin Report at 11-12.) A portion of each such transmission consists of “command bits,” or a code representing the command selected by the user through pushing one or more buttons on the fob. (See id. at 12-13.) In addition, each such command word “includ[es] a key portion derived at least in part from an encryption operation performed on [the] secret initial value.” (JCI’s Motion, Ex. 1, '181 Patent at 25:16-18.)

B. JCI’s “HomeLink 2” Remote Garage Door Opener

JCI’s “HomeLink 2” product is a universal garage door opener that can be trained to send recognizable signals to many different brands of garage door openers. Typically, the “HomeLink” transmitter is built into a vehicle’s overhead console, mirror, or visor, and includes multiple buttons, each of which can be trained to communicate with a different garage door opener.

Lear accuses the “HomeLink 2” product of infringing the Koopman patents when the system operates in “Genie” mode, communicating with Genie brand receivers. In “Genie” mode, a “HomeLink 2” transmission consists of a fixed serial number and an encrypted portion. The encrypted part of the transmission, in turn, is formed from three values: (i) a 16-bit counter value which increases by one with each press of a button; (ii) a 4-bit button code, indicating which of the multiple HomeLink buttons was pressed; and (iii) a 12-bit value referred to as a “discriminator,” which, after decryption, is used by the receiver to authenticate a transmission. The “HomeLink 2” transmitter uses the “Keeloq” algorithm for encryption and decryption.

III. ANALYSIS

A. The Standards Governing JCI’s Motion

Through its present motion, JCI seeks an award of summary judgment in its favor as to the issue of its “HomeLink 2” product’s non-infringement of the Koopman patents. Under the pertinent Federal Rule, summary judgment is proper “if the pleadings, the discovery and disclosure materials on file, and any affidavits show *866 that there is no genuine issue as to any material fact and that the movant is entitled to judgment as a matter of law.” Fed.R.Civ.P. 56(c).

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Bluebook (online)
696 F. Supp. 2d 863, 2010 U.S. Dist. LEXIS 22619, 2010 WL 931887, Counsel Stack Legal Research, https://law.counselstack.com/opinion/lear-automotive-dearborn-inc-v-johnson-controls-inc-mied-2010.