"The user is able to enter the rewind mode from the live game play using one
or more controller inputs to view recent game play (e.g. rewinding, fast-forwarding, playing, etc.) and returning to live game play afterwards."
"One or more inputs" describes all existing save state features, not just a dedicated button. So maybe Sony will run into some trouble with that part of the patent being valid. Most of the rest of the description reads almost exactly like Nintendo's implementation on even the NES mini.
Areas where this patent would be novel to Sony could be
- Their method is probably uploading all the save states to PSN in real time. Probably very important since Offline Single-Player games are extinct
- When you jump back, it automatically creates a new save state where you were at and puts it on a timeline, so you can dynamically return. They reference going back to recall information an NPC said before continuing. I'm not sure if it's so easy to jump forward in other implementations
I would much rather have a save state button than a useless share/screenshot button that I keep accidently hitting. I don't thin it matters much though. Modern games, even campaign focused games, are always-online multiplayer microtransaction cheat-busting games-as-a-service f2p ripoff nightmares. If they implemented this feature at a system level, I doubt many devs would actually support it. It will be like when Playstation implemented streaming at a system level, so devs marked the entire game as a story cutscene to limit streaming.