DC restoration for synchronization signals

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United States of America Patent

PATENT NO 9118305
APP PUB NO 20150054559A1
SERIAL NO

13974042

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In one example implementation, the present disclosure provides a direct current (DC) restoration circuit for restoring the DC component of a synchronization signal provided over an alternating current (AC) coupled link from a transmitting circuit to a receiving circuit. During a period of inactivity in the synchronization signal, the synchronization signal may experience a drift towards the common mode, and may affect the ability for the synchronization signal to properly trigger the receiving circuit. The DC restoration circuit is configured to hold the synchronization signal steady during the period of inactivity, and allow the AC component of the synchronization signal pass through to the receiving circuit during the period of activity to alleviate the problem of baseline drift in the synchronization signal.

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Patent Owner(s)

  • ANALOG DEVICES, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Derounian, Peter Greensboro, US 7 39
Jeffries, Brad P Browns Summit, US 5 28

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