Memory device for generating pulse amplitude modulation-based dq signal and memory system including the same
US-2022076716-A1 · Mar 10, 2022 · US
Multi-rate and multi-modulation ont and olt
US12294818B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12294818-B2 |
| Application number | US-202318294107-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 13, 2023 |
| Priority date | May 4, 2022 |
| Publication date | May 6, 2025 |
| Grant date | May 6, 2025 |
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- Title
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Abstract
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An optical network unit may include a light sensitive unit suitable for receiving NRZ and/or PAM signals effectively. The optical network unit may include a laser transmission unit for providing NRZ and/or PAM signals effectively.
First claim
Opening claim text (preview).
The invention claimed is: 1. An optical network unit for a passive optical network comprising: (a) a light sensitive diode suitable to sense light from a passive optical network and provide a first output in response thereto; (b) a transimpedance amplifier that receives said first output and provides a second output in response thereto; (c) a switch selectively providing said second output to a first amplifier or a second amplifier; (d) said first amplifier receiving said second output and amplifying said second output based upon a limiting amplifier to provide a limited amplified output; (e) said second amplifier receiving said second output and amplifying said second output based upon a non-limiting amplifier to provide a non-limited amplified output; (f) a processor selectively receiving either of said limited amplified output and said non-limited amplified output for subsequent processing; (g) wherein said first output is current signal, wherein said second output is a voltage signal, wherein said switch is programmable between said first amplifier and said second amplifier, wherein when said second output is a NRZ signal it is provided to said first amplifier, wherein when said second output is a PAM signal it is provided to said second amplifier, wherein non-limited amplifier is a substantially linear amplifier, wherein an output from said first amplifier is deserialized, wherein an output from said second amplifier is deserialized.
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Classifications
Receivers · CPC title
Combination of different modulation schemes · CPC title
to control the modulator DC bias · CPC title
using direct modulation · CPC title
- H04Q11/0067Primary
Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring · CPC title
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Frequently asked questions
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- What does patent US12294818B2 cover?
- An optical network unit may include a light sensitive unit suitable for receiving NRZ and/or PAM signals effectively. The optical network unit may include a laser transmission unit for providing NRZ and/or PAM signals effectively.
- Who is the assignee on this patent?
- Arris Entpr Llc
- What technology area does this patent fall under?
- Primary CPC classification H04Q11/0067. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue May 06 2025 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).