Cable modem system management of passive optical networks (pons)
US-2024396635-A1 · Nov 28, 2024 · US
Signal transmission apparatus and optical modem modulation method
US9130675B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9130675-B2 |
| Application number | US-201213729521-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 28, 2012 |
| Priority date | Dec 30, 2011 |
| Publication date | Sep 8, 2015 |
| Grant date | Sep 8, 2015 |
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Abstract
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A modulation method of an optical modem and a signal transmission apparatus performing the method are disclosed. The modulation method of the optical modem includes an optical interface providing a signal to a light source, a photo detector receiving reflected light by an optical link when output light from the light source based on the provided signal is reflected by the optical link, the photo detector measuring and determining characteristics of the optical link using the reflected light, and the optical modem determining a power level and a modulation method for each subcarrier based on the characteristics of the optical link.
First claim
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What is claimed is: 1. A modulation method for an optical modem, wherein the method runs on a processor of the optical modem, comprising: providing a signal to a light source; receiving light reflected by an optical link when light output from the light source based on the provided input signal is reflected by the optical link; determining an characteristic of the optical link using the reflected light; and selecting a power level and a modulation method for each of a plural…
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Electricity · mapped topic
Electricity · mapped topic
- H04B10/27Primary
Electricity · mapped topic
- H04B10/272Primary
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9130675B2 cover?
- A modulation method of an optical modem and a signal transmission apparatus performing the method are disclosed. The modulation method of the optical modem includes an optical interface providing a signal to a light source, a photo detector receiving reflected light by an optical link when output light from the light source based on the provided signal is reflected by the optical link, the phot…
- Who is the assignee on this patent?
- Korea Electronics Telecomm
- What technology area does this patent fall under?
- Primary CPC classification H04B10/27. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 08 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).