From the lecture I have learnt 

1.Why we use convolution Encoding

2. How Convolution encoder works with XOR 

3. How convolution encoder works with bits

4. How convolution encoder works with shift register u1 and u2 when we send data

5. How Impulse response of encoder works if we put bit or data in shift register and what we get as input output value 

6. With Polynomial Representation how we can get  input output result from register.