PROTOCOL FOR AN ELECTRONIC DEVICE TO RECEIVE A DATA PACKET FROM AN EXTERNAL DEVICE

摘要

A protocol for transmitting data from an external device to an electronic device is provided in which the external device transmits a data stream which includes the same data packet repeated multiple times. The data packet has a predetermined length and has a header portion at a predetermined position. A receiver at the electronic device captures a block of data having the predetermined length from the transmitted data stream, and a decoder rotates the captured block of data to place the header portion at the predetermined position within the data packet. This eliminates the need for an accurate jitter-free clock reference at the electronic device. By shifting power consumption and system complexity to the external unit where power is typically not constrained, the energy efficiency of the electronic device can be increased.

主权项

1. An electronic device for receiving a data packet from an external device transmitting a data stream comprising the same data packet repeated a plurality of times, the data packet having a predetermined packet length and comprising a header portion at a predetermined position within the data packet; the electronic device comprising:
a receiver configured to receive data from the external device; a control unit configured to control the receiver to capture a block of data having the predetermined packet length from the data stream transmitted by the external device; and a decoder configured to rotate the captured block of data to place the header portion at the predetermined position within the data packet.