Ok, for our faithful participants interested in meaningful discussion.... how do we determine if the Vip series is more than "colorably different" from the older receivers? Hardware? Software? Specifics?
I've posted similar commentary earlier...and I'm only posting this for possible speculation for those who enjoy the 'technical' aspects of the trial...
1) The original Tivo specs were built around the parsing, buffering, and synchronizing the composite elements of an mpeg2 datastream.
2) ViP, or ANY mpeg4 DVRs did not exist during the time of the initial filings, and thus were not included. Thanks to jacmyoung for pointing that out.
3) mpeg2 and mpeg4 implement different compression algorithms, and sync their audio and video layers differently. They are basically two different audio/video technologies with one arguably superior to the other.
...so with that in mind, I put the following questions on the table for discussion:
1) Are the parsing, buffering, and synchronization pieces ViP series for mpeg4 data implemented differently enough from the previous mpeg2 DVRs to provide colorable difference?
2) Is the ability of the ViP alone to handle BOTH mpeg2 and mpeg4 datastreams enough to qualify as a colorable difference, since the original design was based on just one datastream.
The burden of proof here is obviously on E* at this point. Taking the discussion strictly in the context of my previous two points, given that Tivo's patent (whether I consider it bogus or not) is considered a broad patent, that means that the ViP series not only needs to prove a colorable difference between the current mpeg2 Tivo DVR implementation named in the trial, but prove that the ViP mpeg4 implementation is substantially different enough to have been considered "not derived from Tivo's original patented technology". Which can be the more difficult argument...
And lastly, even if the mpeg4 DVR functionality is considered not to infringe in and of itself, can the mpeg2 DVR functionality within the ViP be considered as possibly infringing?
...all this and more as we wait until our next episode. Same Bat-time, Same Bat-channel...here at Satguys...