BRUSSELS, Sept 15 (Reuters) - Hitachi has offered remedies in a bid to secure EU antitrust approval for its proposed acquisition of French infrastructure company Thales' rail signal business, an EU regulatory filing showed on Friday.

Hitachi submitted its remedies on Thursday, the same day it sought approval for the deal, the filing on the European Commission website showed.

The EU competition enforcer set a Nov. 6 deadline for its decision. (Reporting by Foo Yun Chee)