Invention Grant
- Patent Title: Automotive asymmetric ethernet using a frequency-division duplex scheme with a low-rate echo cancelation
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Application No.: US18077240Application Date: 2022-12-08
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Publication No.: US11784779B2Publication Date: 2023-10-10
- Inventor: Xing Wu , Shaoan Dai , Dance Wu , William Chu
- Applicant: Marvell Asia Pte Ltd
- Applicant Address: SG Singapore
- Assignee: MARVELL ASIA PTE LTD
- Current Assignee: MARVELL ASIA PTE LTD
- Current Assignee Address: SG Singapore
- Main IPC: H04L5/14
- IPC: H04L5/14 ; H04L7/04 ; H04B3/23

Abstract:
An Ethernet Physical Layer (PHY) device includes a link interface and a transceiver. The link interface connects to a full-duplex wired Ethernet link. The transceiver receives first Ethernet signals carrying first data at a first data rate over toe Ethernet link at a first baud rate, transmits second Ethernet signals carrying second data at a second data rate higher than the first data rate, over the Ethernet link, at a second baud rate that is higher than the first baud rate, resamples a reference signal related to the second Ethernet signals to match the first baud rate, generates from the resampled reference signal, at the first baud rate, an echo cancelation signal indicative of an echo signal originating from the second Ethernet signals and interfering with reception of the first Ethernet signals, and suppresses the echo signal from the first Ethernet signals using the echo cancelation signal.
Public/Granted literature
- US20230188310A1 Automotive Asymmetric Ethernet Using a Frequency-Division Duplex Scheme with a Low-Rate Echo Cancelation Public/Granted day:2023-06-15
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