Bose Corp. v. LIGHTSPEED AVIATION, INC.

728 F. Supp. 2d 8, 2010 U.S. Dist. LEXIS 77253, 2010 WL 3035743
Procedural entryThis page is a short order in Bose Corp. v. LIGHTSPEED AVIATION, INC.. Read the opinion of the Court — 691 F. Supp. 2d 275
District Court, D. Massachusetts·Decided July 30, 2010·No. Civil Action 09-10222-WGY·Published

Opinion

MEMORANDUM AND ORDER

YOUNG, District Judge.

Bose Corporation (“Bose”) brings this action against Lightspeed Aviation, Inc. (“Lightspeed”) alleging infringement of U.S. Patent No. 5,181,252 (the “'252 Patent”), an invention related to high compliance drivers in active noise-reducing (“ANR”) headsets. Compl. ¶ 15, ECF No. 1. The action for patent infringement results from Lightspeed’s introduction of its Zulu ANR Aviation headset (the “Zulu headset”), which Bose alleges infringes upon one or more claims of the '252 Patent. Id. ¶ 12.

Both parties move for summary judgment on a variety of issues. Bose’s Mot. for Sum. J., ECF No. 73; Lightspeed’s Mot. for Sum. J., ECF No. 72. In this opinion the Court discusses those issues as to which summary judgment is granted.

I. BACKGROUND

Bose is the assignee of the '252 Patent titled “High Compliance Headphone Driving.” Compl. ¶ 14; Mem. Supp. Bose’s Mot. Ex. P, ECF No. 78. Claim 1, the only independent claim of the '252 Patent, recites:

A headset comprising: at least one earcup having a front cavity and rear cavity with front cavity and rear cavity compliances respectively, a baffle separating the front and rear cavities, a high compliance driver with a driver compliance that is greater than said rear cavity compliance having a diaphragm joined to a voice coil normally residing in a gap mounted on the baffle, and an active noise reduction system coupled to said driver.

The '252 Patent col. 5 1. 10-20.

In 2007, Lightspeed began selling the Zulu headset. Mem. Supp. Bose’s Mot. Ex. Q at L 000025. Bose has accused the Zulu headset of infringing claims of the '252 Patent. Compl. ¶ 15. Lightspeed’s technical expert, Dr. Marshall Buck, agrees that the Zulu headset meets every limitation of Claim 1 of the '252 Patent. Mem. Supp. Lightspeed’s Mot. Ex. 2 (“Dr. Buck’s Expert Report”) at 64-65, ECF No. 74.

Among other defenses, Lightspeed asserts invalidity based on anticipation of all claims of the '252 Patent by the Voyager headset, invalidity based on anticipation of Claims 1 and 5 by the Telex headset, and invalidity under 35 U.S.C. § 112.

The Voyager headset was an experimental prototype noise-cancelling headset designed by Bose for use in 1986. Mem. Supp. Bose’s Mot. Ex. R at 9:11-11:12. Dr. Koopmann measured the right earcup of the Voyager headset, and determined that the Voyager headset driver compliance of 135 was less than its rear cavity compliance of 156. Id. Ex. V at 18. Bose’s acoustical engineer Jason Harlow also tested a prototype that he believed was identical to the Voyager headset, id. Ex. O at 72:14-18, and determined that the prototype had a driver compliance of 106, *11 which was less than the rear cavity compliance of 175. Id. Ex. T. Dr. Buck measured the compliances of the left earcup of the Voyager headset, and determined that the Voyager headset driver compliance was 169, Dr. Buck’s Expert Report at 10, and its rear cavity compliance was 188. Mem. Supp. Bose’s Mot. Ex. N at 93:7-94:7.

Dr. Buck testified during his deposition that Dr. Koopmann’s “water test” for measuring compliance of the rear cavity was more reliable than his own measurement. Mem. Opp’n Bose’s Mot. Ex. 1 at 110-111, ECF No. 95. He stated that his own measurement was subject to ten percent margin of error. Id. Dr. Buck did not adopt Dr. Koopmann’s result as correct, but stated that he was willing to adopt the average of the two rear cavity compliance measurements. Id. Dr. Buck never used Dr. Koopmann’s measurement of the rear cavity compliance in his calculations to determine the ratio of the driver to rear cavity compliance. Id.

The Telex headset was allegedly invented by Joel Johnson at Telex on or earlier than March 1989 and reduced to practice on July 28, 1989. Mem. Supp. Light-speed’s Mot. Ex. 10 at 79:20-23. The Telex headset created on July 28, 1989 no longer exists. Id. at 106:11-23. Light-speed’s expert examined, not the original Telex headset, but Johnson’s personal Telex headset (the “Johnson headset”) manufactured “sometime” in 1989. Dr. Buck’s Expert Report at 12. Dr. Buck stated that its assembly “was conceived and documented at Telex no later than March 2, 1989,” id., and his report describes how each claim limitation of Claim 1 is fulfilled in the Johnson headset, id. at 12-16. Dr. Koopmann’s deposition testimony suggests that he agrees that the Telex headset practiced each limitation of Claim 1. Mem. Supp. Lightspeed’s Mot. Ex. 14 at 150-52. Dr. Koopmann, however, has never performed compliance measurements neither of the original Telex headset, because that headset no longer exists, nor of the Johnson headset.

Lightspeed’s expert report does not include any opinion on the issues of lack of enablement, indefiniteness, or lack of written description. See Dr. Buck’s Expert Report. Dr. Buck only discussed these invalidity defenses in his deposition. Mem. Supp. Bose’s Mot. Ex. N at 76:18-85:20.

II. DISCUSSION

A. Legal Standard

Summary judgment is proper where “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. of Civ. P. 56(c). An issue of fact is “genuine” if there exists a sufficient evidentiary basis on which the trier of fact could find for the non-moving party. Anderson v. Liberty Lobby, 477 U.S. 242, 248, 106 S.Ct. 2505, 91 L.Ed.2d 202 (1986). A fact is “material” if it will affect the outcome of the case under the applicable law. Id. The moving party bears the burden of showing that no genuine issue of material fact exists. Celotex Corp. v. Catrett, 477 U.S. 317, 323, 106 S.Ct. 2548, 91 L.Ed.2d 265 (1986). “The evidence of nonmovant is to be believed, and all justifiable inferences are to be drawn in his favor.” Anderson, 477 U.S. at 255, 106 S.Ct. 2505. Save as to facts admitted by both parties, the court must disregard all evidence— even if unopposed — which the jury is free to reject, i.e. all evidence upon which a party bears the burden of proof. Reeves v. Sanderson Plumbing Prods., Inc., 530 U.S. 133, 151, 120 S.Ct. 2097, 147 L.Ed.2d 105 (2000). Thus, summary judgment may be granted when a fair-minded jury could *12 reach only one conclusion: in favor of the moving party.

B. Infringement of Claim 1

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Bose Corp. v. LIGHTSPEED AVIATION, INC., 728 F. Supp. 2d 8, 2010 U.S. Dist. LEXIS 77253, 2010 WL 3035743 (D. Mass. 2010).

728 F. Supp. 2d 8 (Bose Corp. v. LIGHTSPEED AVIATION, INC.) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

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