DC offset cancellation circuit, system and method

Details DC offset cancellation circuit, system and method DC offset cancellation circuit, system and method

2002-12-20

2004-10-26

Shingleton, Michael B (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including atomic particle or radiant energy impinging on a...

C330S011000, C330S292000, C330S301000, C330S085000, C330S097000, C375S318000, C250S2140RC

Reexamination Certificate

active

06809596

ABSTRACT:

BACKGROUND
Field
The subject matter disclosed herein relates to data communication systems. In particular, embodiments disclosed herein relate to processing data received from an optical transmission medium.
Information
Optical communication networks have been implemented to enable increased data rates in links providing point to point communication. For example, optical communication links are typically implemented in Synchronous Optical Network/Synchronous Digital Hierarchy (SONET/SDH) and 10 Gigabit Ethernet systems. At a receiving end of such an optical communication link, a photodiode may generate a current in response an optical signal received from an optical transmission medium (e.g., fiber optical cabling). A transimpedance amplifier (TIA) typically converts the current generated by the photodiode into a voltage signal that is then processed. For example, the voltage signal may be processed by clock and data recovery circuitry to recover data transmitted in the optical signal.


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IEEE Std. 802.3ae-2002, clauses 46, 47 and 51-53.

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