Technically speaking, the "no cable patch" is a form a piracy, since it's not officially sanctioned by Ubisoft. So it's not likely that you'll find much help regarding that.
It doesn't sound like the cable (or the no cable patch) is the source of your problem, since you seemed to suggest that you get the same level of noise with both of them. It's probably either:
1) Your guitar not being properly grounded or you're near something that's causing the buzzing. Especially if you have single coil pickups, as they are very prone to environmental factorsc (i.e. fluorescent lights, electronics). Do you get lots of hum when you play through an amp?
2) Your Rocksmith settings. Try calibrating your guitar if you haven't done it in a while, or if you've changed guitars since you last calibrated. Might be worth messing with some of the other audio options if the buzzing is really bad.
3) Your computer's audio interface may be causing the buzzing. Be sure any/all applicable drivers are up to date.
Hopefully that helps, but don't be too worried if you can't eliminate the buzzing completely. I've found that certain tones and Rocksmith amps/settings cause noise in my setup too.
First thanks for the answer I really appreciate it. So we tried it with 2 guitar and the result is same. I will try to refresh my drivers but after some thinking I came to the conclusion maybe I don't even have sound card. Btw thanks and if someone have more idea I wait for the answers.