Texas Instruments Corporation

Cisco Technology, Inc.

Joel Dror

Adee Ofir Ran

Shai Erez

Eran Nussbaum

A method includes transmitting, by a transmitter and over a transmit channel to a remote device, a signal that includes a plurality of signal points and receiving, by a receiver and over a receive channel from the remote device, a response signal that includes a plurality of response points corresponding to the plurality of signal points. The method also includes adjusting the plurality of signal points of the signal until logical values of the plurality of response points invert to produce an adjusted signal, estimating, based on the adjusted signal, a pulse response of the transmit channel, and applying equalization in the transmitter based on the estimated pulse response to reduce an effect of the pulse response on the signal.

Transmitter equalization

An integrated circuit. The integrated circuit comprises an analog transmit chain, an analog receive chain, a processor coupled to the analog transmit and receive chains, and a non-transitory storage coupled to the processor and storing executable code. When executed by the processor, the executable code causes the processor to cause a portion of a radio frequency (RF) signal to be transmitted by the analog transmit chain, to determine a first direct current (DC) voltage of a baseband signal provided by the analog receive chain, to cause a DC voltage offset to be input into the analog transmit chain, to determine a second DC voltage of another baseband signal provided by the analog receive chain, to determine a DC voltage offset compensation based on the first and second DC voltages and the DC voltage offset, and to cause the DC voltage offset compensation to be used to transmit signals.

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Pardes Hanna-Karkur, Israel

Joel Dror