公开(公告)号：US20220209818A1

公开(公告)日：2022-06-30

申请号：US17191655

申请日：2021-03-03

Applicant: Faraday Technology Corp.

Inventor： Chia Jung Chan ,  Wei-Cyuan Wu

IPC: H04B3/23

Abstract: An echo cancellation device and an echo cancellation method thereof applied in a communication device are provided. The echo cancellation device includes an echo canceller and a combine circuit. The echo canceller obtains a plurality of delayed signals from a local signal of the communication device, and the delayed signals are divided into a plurality of delayed signal groups. The echo canceller selectively ignores at least one of the delayed signal groups, and the echo canceller generates an echo cancellation signal with the others of the delayed signal groups. The combine circuit is coupled to an interface circuit of the communication device to receive a received signal. The combine circuit cancels an echo component of the received signal with the echo cancellation signal to generate a cancelled signal.

公开(公告)号：US11855710B2

公开(公告)日：2023-12-26

申请号：US17191655

申请日：2021-03-03

Applicant: Faraday Technology Corp.

Inventor： Chia Jung Chan ,  Wei-Cyuan Wu

IPC: H04B3/23

CPC classification number: H04B3/231

Abstract: An echo cancellation device and an echo cancellation method thereof applied in a communication device are provided. The echo cancellation device includes an echo canceller and a combine circuit. The echo canceller obtains a plurality of delayed signals from a local signal of the communication device, and the delayed signals are divided into a plurality of delayed signal groups. The echo canceller selectively ignores at least one of the delayed signal groups, and the echo canceller generates an echo cancellation signal with the others of the delayed signal groups. The combine circuit is coupled to an interface circuit of the communication device to receive a received signal. The combine circuit cancels an echo component of the received signal with the echo cancellation signal to generate a cancelled signal.