Method for eliminating nonlinear effects, transmitter and receiver
US-2016380700-A1 · Dec 29, 2016 · US
Transmission device, transmission method, and communication system
US9312959B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9312959-B2 |
| Application number | US-201214129745-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 5, 2012 |
| Priority date | Jul 11, 2011 |
| Publication date | Apr 12, 2016 |
| Grant date | Apr 12, 2016 |
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Abstract
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In order to provide a transmission device which can resolve the deterioration in transmission characteristics due to lack of the resolution of a D/A converter in a high speed and large capacity digital communication, a transmission device according to an exemplary aspect of the present invention includes an encoding unit encoding input data; an unequal-interval quantization unit quantizing an output signal from the encoding unit by a quantization level number based on a resolution of a subsequent digital-to-analog conversion unit by using an unequally spaced quantization level interval based on the output signal; the digital-to-analog conversion unit converting an output signal from the unequal-interval quantization unit into an analog signal; an output level adjustment unit adjusting an output level of the digital-to-analog conversion unit so as to compensate a difference between a predetermined initial transfer function and a transfer function of the unequal-interval quantization unit; and a modulation unit generating a transmission signal based on an output signal of the digital-to-analog conversion unit adjusted by the output level adjustment unit.
First claim
Opening claim text (preview).
What is claimed is: 1. A transmission device, comprising: an encoding unit encoding input data; an unequal-interval quantization unit quantizing an output signal from the encoding unit by a quantization level number based on a resolution of a subsequent digital-to-analog conversion unit by using an unequally spaced quantization level interval based on the output signal; the digital-to-analog conversion unit converting an output signal from the unequal-interval quantization uni…
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- H04B10/25137Primary
Electricity · mapped topic
Electricity · mapped topic
- H04B10/516Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9312959B2 cover?
- In order to provide a transmission device which can resolve the deterioration in transmission characteristics due to lack of the resolution of a D/A converter in a high speed and large capacity digital communication, a transmission device according to an exemplary aspect of the present invention includes an encoding unit encoding input data; an unequal-interval quantization unit quantizing an o…
- Who is the assignee on this patent?
- Abe Junichi, Nec Corp
- What technology area does this patent fall under?
- Primary CPC classification H04B10/25137. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 12 2016 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).