lol well i'm sorry if my english grammar is bad


as for the converting part i am trying to make a universal remote for all android phone so my possible options was using the headphone jack to generate tone pulses to send it to a IR transmitter led.the transmitter leds will then light up base on the remote commands which so far i read are manchester encoding.

my concern is whether my concept on how a remote works is correct.

so far i now if u press a button it'll then send the command with (header bit + command bits + address bit)

so now i am asking are the address bit and command bits are there in hex?dec?
how do you determine the period of each pulse?