DivX, LLC v. Amazon.com, Inc. et al.

Summary

The United States District Court for the Eastern District of Virginia addresses Amazon's motion for summary judgment in a patent-infringement action brought by DivX, LLC involving video-streaming patents. The court grants summary judgment of noninfringement as to the 141, 806, 938, and 943 patents and denies it as to the 303 patent, while also resolving issues concerning willful infringement, foreign damages, and claim construction clarification.

Holdings

1. The 'key' used in the 943 patent's claimed cipher is an outside source or external input. Because the accused AES cipher ultimately receives the externally sourced content key through the KeyExpansion function, the accused products do not infringe the asserted 943 patent claims.
2. The accused products do not infringe claim 20 of the 141 patent because they obtain the step 20.b information and step 20.f index information contemporaneously in a single manifest, contrary to the court-ordered requirement that step 20.f occur after step 20.b.
3. The record contained a genuine issue concerning whether the accused products sometimes request post-seek byte ranges from the same selected video track as before the seek, but that issue did not preclude summary judgment because the products independently failed the required step ordering.
4. The claim language does not require the accused products' media metadata to be generated before every decoding operation associated with transcoding. Metadata generated before the second-pass transcoding can satisfy the requirement that it be generated before decoding during a transcoding, and the metadata need only be related to the source video file.
5. The accused products do not infringe claim 1 of the 806 patent because their split-and-stitch process encodes different timed portions of video at different encoders, whereas the claim requires the plurality of transcoding devices to decode and encode the same claimed portion of the source video.
6. The claims do not require the tiles of every frame in the received bitstream to be independently encoded. The use of 'comprising' and 'plurality' permits infringement where at least two frames satisfy the independent-tile limitation, even if other frames do not.
7. DivX failed to present evidence sufficient to create a genuine dispute that the accused products decode the relevant frame by a plurality of processors in parallel. Amazon was therefore entitled to summary judgment of noninfringement of the 938 patent on this independent ground.
8. The evidence was legally insufficient to support willful infringement as a matter of law. Amazon was entitled to summary judgment of no willful infringement as to all asserted patents.
9. DivX could not recover foreign damages based on Amazon's testing of accused Prime Video players in Seattle because the evidence did not show that the domestic testing proximately caused, enabled, or was necessary to enable otherwise unavailable foreign profits.

Questions Presented

1. Whether Amazon was entitled to summary judgment of noninfringement of the 943 patent based on the accused AES cipher's use of an externally sourced content key.
2. Whether Amazon was entitled to summary judgment of noninfringement of the 141 patent because the accused products did not follow the court-ordered sequence of claim 20's steps.
3. Whether Amazon was entitled to summary judgment of noninfringement of the 806 patent because the accused products did not encode the same portion of video at each parallel transcoding device.
4. Whether Amazon was entitled to summary judgment of noninfringement of the 303 and 938 patents based on alleged dependencies among tiles in the accused AV1 bitstreams.
5. Whether Amazon was entitled to summary judgment of noninfringement of claims 1 and 8 of the 938 patent because DivX lacked evidence that decoding occurred by a plurality of processors in parallel.
6. Whether DivX presented sufficient evidence of willful infringement of the asserted patents.
7. Whether DivX could recover foreign damages based on Amazon's testing of Prime Video players in Seattle.
8. Whether the Court should clarify its construction of the term 'key' in the 943 patent claims.

Disposition

other