Federal Circuit Narrows Claim Construction Options In Game Controller Suit
In Thorner v. Sony Computer Entertainment America, LLC (Case No. 2011-1114, Feb. 1, 2012) (Moore*, Rader & Aiken (D. Or. sitting by designation)), the Federal Circuit reiterated the prohibition against importing limitations from the specification and reversed a district court construction depending from consistent uses of the disputed phrase in the specification.
Thorner sued Sony for infringement of U.S. Patent No. 6,422,941, which claims a feedback system for video games. Id. at 2-3 The claimed system involved an actuator that provides tactile feedback to a player when certain events occur in a game. Id. If the player crashes a car, the actuator can vibrate to give tactile feedback to enhance the user experience and to supplement visual and audio effects simulating the crash. Id.
One claim construction dispute centered on the phrase "attached to said pad," which the district court construed to mean that an actuator was attached to an exterior surface of the pad, based on the '941 specification. Thorner v. Sony Computer Entm't Am. LLC, No. 09-cv-1894, 2010 WL 3811283, at *6 (D.N.J. Sept. 23, 2010). The district court relied on the specification's use of the term "attached" only in embodiments with an actuator attached to a pad's outside surface, and contrasted an embodiment which described as "embedded" an actuator inside the pad. Id. After claim construction, the parties stipulated to noninfringement and appealed. Slip Op. at 4.
The panel reversed, finding that the district court erred in its reliance on the specification and its uses of "attached" with embodiments with external actuators and "embedded" for an internal actuator. Slip Op. at 8.
[T]he specification never uses the word 'attached' when referring to an actuator located on the interior of a controller. We hold that this does not rise to the level of either lexicography or disavowal. Both exceptions require a clear and explicit statement by the patentee. It is not enough that the patentee used the term when referencing an attachment to an outer surface in each embodiment. [Slip Op. at 9 (citations omitted).]
The panel acknowledged that such use of distinct descriptors could amount to a redefinition, slip Op. at 9-10, but rejected the notion that the specification at hand was sufficiently clear in its redefinition or disavowal. Id. In so...
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