Invention Grant
US08276013B2 System and method for reducing a link failure detection delay using a link energy signal while in a low power idle mode
有权
用于在低功率空闲模式下使用链路能量信号来减少链路故障检测延迟的系统和方法
- Patent Title: System and method for reducing a link failure detection delay using a link energy signal while in a low power idle mode
- Patent Title (中): 用于在低功率空闲模式下使用链路能量信号来减少链路故障检测延迟的系统和方法
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Application No.: US12342462Application Date: 2008-12-23
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Publication No.: US08276013B2Publication Date: 2012-09-25
- Inventor: Wael William Diab , Scott Powell
- Applicant: Wael William Diab , Scott Powell
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agent Duane S. Kobayashi
- Main IPC: G06F1/00
- IPC: G06F1/00
Abstract:
A system and method for using a link energy signal in physical layer devices (PHYs) having a silent channel/interface in energy efficient Ethernet (EEE). LPI modes in EEE suffer deficiencies in cable unplug detection due to the latency in refresh cycles. LPI modes in EEE also suffer from potential frequency drift, which leads to high bit error rate (BER) when coming out of LPI mode. A link energy signal transmitted during LPI modes enables real-time detection of cable unplug and the frequency lock to be maintained.
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