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Location specific optical monitoring

Optical communications – Transmitter – Including compensation
Reexamination Certificate

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Long reach optical network

Optical communications – Multiplex – Wavelength division or frequency division
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Los beat detector

Optical communications – Diagnostic testing – Fault detection
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Loss of signal detection

Optical communications – Diagnostic testing – Fault detection
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Loss of signal detection circuit for light receiver

Optical communications – Receiver
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Loss of signal detector for low-level optical signals

Optical communications – Diagnostic testing – Determination of communication parameter
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Loss-less architecture and method for wavelength division...

Optical communications – Diagnostic testing – Determination of communication parameter
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Loss-of-light detecting apparatus

Optical communications – Diagnostic testing – Determination of communication parameter
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Low loss WDM add drop node

Optical communications – Multiplex – Wavelength division or frequency division
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Low noise optical storage system based on an optical...

Optical communications – Transmitter and receiver system – Including compensation
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Low power portable communication system with wireless...

Optical communications – Photophone
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Low total excursion dispersion maps

Optical communications – Transmitter and receiver system – Including compensation
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Low total excursion dispersion maps

Optical communications – Transmitter and receiver system – Including optical waveguide
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Low-cost optical burst transmission system, apparatus, and...

Optical communications – Multiplex – Optical switching
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Low-cost WDM source with an incoherent light injected...

Optical communications – Transmitter and receiver system – Passive system
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Low-cost WDM source with an incoherent light injected...

Optical communications – Transmitter and receiver system – Passive system
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Low-cost WDM terminal device accommodating plurality of...

Optical communications – Multiplex – Wavelength division or frequency division
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Low-latency switch using optical and electrical proximity...

Optical communications – Multiplex – Optical switching
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Low-overhead fault-tolerance techniques for optical and...

Optical communications – Fault recovery – Bypass inoperative element
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M×N wavelength selective optical switch

Optical communications – Multiplex – Optical switching
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