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US Patent 9377794 Rapid power up of Power Over Ethernet equipment system

Patent 9377794 was granted and assigned to Linear Technology on June, 2016 by the United States Patent and Trademark Office.

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Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent
1

Patent attributes

Patent Applicant
Linear Technology
Linear Technology
1
Current Assignee
Linear Technology
Linear Technology
1
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
93777941
Patent Inventor Names
Jeffrey Heath1
David Dwelley1
Date of Patent
June 28, 2016
1
Patent Application Number
140545761
Date Filed
October 15, 2013
1
Patent Citations Received
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US Patent 12072721 Methods and equipment for reducing power loss in cellular systems
2
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US Patent 11949522 Adaptive backoff time in power-over-ethernet detection cycles
3
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US Patent 11951917 Onboard communication system, switching device, and control method
4
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US Patent 11953964 Ethernet power supply and power saving method of controlling the same
5
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US Patent 12026000 Methods and equipment for reducing power loss in cellular systems
6
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US Patent 12068867 Voltage-current profile based start-up of PoE devices
7
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US Patent 11662759 Programmable power supplies for cellular base stations and related methods of reducing power loss in cellular systems
8
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US Patent 11669118 Programmable power supplies for cellular base stations and related methods of reducing power loss in cellular systems
9
...
Patent Primary Examiner
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Kenneth B Wells
1
Patent abstract

A Power Over Ethernet (PoE) system includes Power Sourcing Equipment (PSE) providing data and voltage over Ethernet wires to a Powered Device (PD). Instead of the conventional detection and classification routine being performed every time the system is powered up, the pertinent data to determine whether to apply PoE to the PD is stored in a memory in the PSE. The memory is accessed by a controller in the PSE when the PSE is powered up. Therefore, a time-consuming detection and classification routine does not have to be performed each time the system is powered up. The system is particularly useful in automobiles where the particular PDs and PSEs are predetermined. The PoE data may be obtained the first time the system is powered up or may be stored in the memory when the PSE is designed or fabricated.

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