Thank you for your interest in our graduate program. We will not reject/accept any applicant just by looking at GRE and TOEFL scores. The graduate committee will review the entire application package and take into consideration every aspect of it. Having said that, admission to ECE department is very competitive, if you feel that your scores are not strong enough, you may retake the GRE or TOEFL to improve your score as many times as you wish. We will accept the highest score attained.
I hope this helps, however if you need additional assistance do not hesitate to contact me anytime.