Back to results
US 10,484,044 B1Granted
Differential termination modulation for back-channel communication
AssigneeHuawei Technologies Co., Ltd.
InventorEuhan Chong
Life of this patent
Estimating the term…
Abstract
Devices and methods for communicating back-channel data over a communication link are provided. The termination impedance of the communication link at the receiver and/or transmitter side may be modulated to encode back-channel data as signal reflections in the communication link. The corresponding device at the other end of the communication link may detect these reflections and decode them to recover the back-channel data.
Claims15
A receiver for receiving a data signal over a communication link and sending back-channel data over the communication link, comprising:
- a first resistive element having an adjustable first resistance, the first resistance being adjusted based on a received first resistor tuning signal;
- a second resistive element having a second resistance;
- a terminator for differentially terminating the communication link using the first resistive element and the second resistive element;
- and
- a back-channel data encoder for:
- receiving a back-channel data signal;
- and
- providing a first resistor tuning signal to the first resistive element based on the back-channel data signal.
5 more elements
Dependencies are inferred from the claim text.