QI Data transmission between transmitter and receiver

[aharon.fin]

hi
I want to transfer a small amount of data between QI transmitter and the receiver.
I know it can be done in one direction and the direction is between the receiver to transmitter
But I haven't found a way in the opposite direction.
see atached :

Is there any idea that it would be two-way?

 

[FvM]

QI standard specifies both communication directions, load-modulation for receiver-to-transmitter and frequency-shift keying for transmitter-to-receiver. Review Qi-v1.3 or Qi-v2.0 comms-physical-layer.

 

[aharon.fin]

QI standard specifies both communication directions, load-modulation for receiver-to-transmitter and frequency-shift keying for transmitter-to-receiver. Review Qi-v1.3 or Qi-v2.0 comms-physical-layer.

Thanks ..just see that now:

Qi 1.2.3 (latest public release) defines two communications methods:
• Unidirectional: RX to TX only, ASK, for BPP (Baseline Power Profile). Same as in Qi 1.1
• Bidirectional: RX to TX, ASK and TX to RX, FSK, for EPP (Extended Power Profile). Did not exist in Qi 1

but i dont see yet prctical IC that have any comunication interface.
i will be glad if you can direct me to some practical info.

thanks.