I guess this would only be possible on the phones having an IR blaster and nowadays all big brands are neglecting IR blaster functionality,if it would be based on IR blaster,then it's not a new innovation from them,it has been used from last 5 years and many apps are available for same on Play Store
If it's not based on IR blaster concept and can be used on every smartphone(which according to me not possible) it would really be a great innovation :k