COMMUNICATIONS APPARATUS USING TRAINING SIGNAL INJECTED TO TRANSMISSION PATH FOR TRANSMISSION NOISE SUPPRESSION/CANCELLATION AND RELATED METHOD THEREOF
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United States of America Patent
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Issued Date -
Dec 25, 2014
app pub date -
Dec 19, 2013
filing date -
Jun 19, 2013
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Abstract
A communications apparatus has a transmitter path and a training signal generator. The transmitter path is arranged for transmitting a transmission signal. The training signal generator is arranged for generating a training signal in a receiver band, and injecting the training signal to the transmitter path. The training signal is utilized to obtain an accurate estimation of the channel which helps to suppress transmission noise comprised in at least one received signal of the communications apparatus, and the transmission noise is generated by the transmitter path. Specifically, the communications apparatus further has a receiver path and a transmission noise suppression device. The receiver path is arranged for receiving a received signal. The transmission noise suppression device is arranged for receiving the training signal, and processing the received signal to suppress transmission noise comprised in the received signal according to at least the training signal.
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