Continuous-time delta-sigma modulator
US-2019386676-A1 · Dec 19, 2019 · US
Delta-sigma modulator and transmitter including the same
US9014281B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9014281-B2 |
| Application number | US-201314011268-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 27, 2013 |
| Priority date | Aug 27, 2012 |
| Publication date | Apr 21, 2015 |
| Grant date | Apr 21, 2015 |
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Abstract
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A delta-sigma modulator and a transmitter apparatus including the same are disclosed. The delta-sigma modulator includes a first integrator, a second integrator, a first comparator configured to compare an output signal of the second integrator and a reference signal, and output a first comparison signal, a second comparator configured to compare the output signal of the second integrator and the reference signal, and output a second comparison signal, a first DAC configured to output the first signal corresponding to the first comparison signal and the second comparison signal, a second DAC configured to output the second signal corresponding to the first comparison signal and the second comparison signal, a delayer configured to generate a delayed signal that delays the first comparison signal and the second comparison signal by a predetermined time, and an output DAC configured to generate an output signal having a multi-level corresponding to the delayed signal.
First claim
Opening claim text (preview).
What is claimed is: 1. A delta-sigma modulator, comprising: a first integrator configured to integrate an input signal and a first signal which is fed back; a second integrator configured to integrate an output signal of the first integrator and a second signal which is fed back; a first comparator configured to compare an output signal of the second integrator and a reference signal, and output a first comparison signal; a second comparator configured to compare the output…
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Classifications
- H03M3/504Primary
Electricity · mapped topic
- H03K7/08Primary
Electricity · mapped topic
- H04L25/4902Primary
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9014281B2 cover?
- A delta-sigma modulator and a transmitter apparatus including the same are disclosed. The delta-sigma modulator includes a first integrator, a second integrator, a first comparator configured to compare an output signal of the second integrator and a reference signal, and output a first comparison signal, a second comparator configured to compare the output signal of the second integrator and t…
- Who is the assignee on this patent?
- Korea Electronics Telecomm
- What technology area does this patent fall under?
- Primary CPC classification H03M3/504. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 21 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).