Originally Posted by havlicek
Unless there is some limited claim construction of the phrase "control commands from a user" or E* is prepared to stop using MPEG or an equivalent, it will not be an easy design around for E*. Check out claim 1 of U.S. Patent No. 6,233,389 that E* was found to infringe:
1. A process for the simultaneous storage and play back of multimedia data, comprising the steps of:
accepting television (TV) broadcast signals, wherein said TV signals are based on a multitude of standards, including, but not limited to, National Television Standards Committee (NTSC) broadcast, PAL broadcast, satellite transmission, DSS, DBS, or ATSC;
tuning said TV signals to a specific program;
providing at least one Input Section, wherein said Input Section converts said specific program to an Moving Pictures Experts Group (MPEG) formatted stream for internal transfer and manipulation;
providing a Media Switch, wherein said Media Switch parses said MPEG stream, said MPEG stream is separated into its video and audio components;
storing said video and audio components on a storage device;
providing at least one Output Section, wherein said Output Section extracts said video and audio components from said storage device;
wherein said Output Section assembles said video and audio components into an MPEG stream;
wherein said Output Section sends said MPEG stream to a decoder;
wherein said decoder converts said MPEG stream into TV output signals;
wherein said decoder delivers said TV output signals to a TV receiver; and
accepting control commands from a user, wherein said control commands are sent through the system and affect the flow of said MPEG stream.
I believe the media switch also indexes the data so that the unit can quickly jump to a new location. I have a dvd player with the same 8 second your wife is talking rewind button that a tivo has- when i hit the button on the tivo it rewinds 8-seconds instanteously- on the DVD player it takes a measurable amount of time while the CPU figures out what to do.
I believe DISh could rewrite their code to avoid the media switch and instead run all the data though the CPU. With a modern CPU it probably woulnd't matter (windows media center probably just does 8 second rewind by brute CPU power) but with the undersized cpu's in these early generation DVR's i think the instantanous nature of the transport controls would dissappear and usability would become more like a VCR.
BUT I AM NOT A LAWYER OR A PATENT OFFICER so anyoen feel free to correct me...