Gibson vs. Guitar hero

Here's an interesting one. It appears Gibson was just a little off the mark in terms of interpreting customer needs when they filed this patent.
Gibson patent
The invention disclosure in this granted patent has all the intended spirit of the guitar hero game. It involves putting an audio/video headset on, and then playing an actual musical instrument along with music and video playing on the headset. The intended result is a virtual concert experience. This might still have potential as a good product for actual musicians with a little more development and marketing.

Gibson filed an infringement case against Activision, inventors of the famous Guitar hero, claiming that the video game was in direct violation of the patent rights granted to Gibson. The court ended up declaring that there was no infringement since the guitar hero game didn't actually make any noises in and of itself, but rather the digital vido game played the music. If there were no existing claims, perhaps Gibson could have worded their claims a little more broadly to include what the guitar hero game ended up becoming.