Patent ID: 8935125
Filing Date: 2015-01-13
Classification: H04L

Abstract:
1. A method for compensating signal impairment within an electronic device comprising an external interface socket operable to receive a single connector and comprising a bidirectional connection, a communication device and a transmission connection within the electronic device from the communication device to the external interface socket and a reception connection within the electronic device from the external interface socket to the communication device, the method comprising: connecting a single loop back connector into the external interface socket thereby shorting the transmission connection with the reception connection directly at the external interface socket such that a signal sent from the communication device is transmitted through the transmission connection to the external interface socket and through the loop back connector into the reception connection back to the communication device; transmitting a calibration signal from the communication device into the transmission connection; receiving the calibration signal through the reception connection as a looped back signal at the communication device; measuring the looped back signal; determining from the measuring of the looped back signal the signal impairment introduced by the transmission and reception connections, wherein the signal impairment comprises a transmit impairment on signals transmitted from the communication device through the transmission connection and a receive impairment on signals received by the communication device through the reception connection; removing the single loop back connector; adjusting the signals transmitted from the communication device through the cable to compensate for the transmit impairment; and adjusting the signals received by the communication device through the cable to compensate for the receive impairment.