Invention Grant
- Patent Title: System and method for controlling power delivered to a powered device based on cable characteristics
- Patent Title (中): 基于电缆特性来控制供电设备的功率的系统和方法
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Application No.: US11654023Application Date: 2007-01-17
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Publication No.: US07664972B2Publication Date: 2010-02-16
- Inventor: Wael William Diab , Minshine Shih
- Applicant: Wael William Diab , Minshine Shih
- 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 ; G06F11/30 ; G06F15/16
Abstract:
A system and method for discovering a cable type and resistance for Power over Ethernet (PoE) applications. Cabling power loss in PoE applications is related to the resistance of the cable itself. A PHY can be designed to measure electrical characteristics (e.g., insertion loss, cross talk, length, etc.) of the Ethernet cable to enable determination of the cable resistance. The determined resistance can be used in powering decisions and in adjusting power budgets allocated to power source equipment ports.
Public/Granted literature
- US20080148081A1 System and method for controlling power delivered to a powered device based on cable characteristics Public/Granted day:2008-06-19
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