Method and device for analog/digital conversion of an analog signal
US-9473160-B2 · Oct 18, 2016 · US
Analog-to-digital converter and analog-to-digital conversion method
US9160359B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9160359-B2 |
| Application number | US-201414548886-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 20, 2014 |
| Priority date | Nov 20, 2013 |
| Publication date | Oct 13, 2015 |
| Grant date | Oct 13, 2015 |
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Abstract
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According to an embodiment, an analog-to-digital (AD) converter includes a first AD conversion unit, a selector and a second AD conversion unit. The first AD conversion unit performs AD conversion of an analog signal in a first period to generate an upper-bit digital signal. The selector selects not less than one reference voltage based on the upper-bit digital signal to obtain a selected reference voltage group in a voltage range narrower than a full scale. The second AD conversion unit performs AD conversion of the analog signal by using the selected reference voltage group. The first period starts before settling of the analog signal up to an accuracy corresponding to a total resolution of the first AD conversion unit and the second AD conversion unit.
First claim
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What is claimed is: 1. An analog-to-digital converter comprising: a first analog-to-digital conversion unit configured to perform analog-to-digital conversion of an analog signal in a first period to generate an upper-bit digital signal; a selector configured to select not less than one reference voltage based on the upper-bit digital signal to obtain a selected reference voltage group in a voltage range narrower than a full scale; and a second analog-to-digital conversion uni…
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Frequently asked questions
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- What does patent US9160359B2 cover?
- According to an embodiment, an analog-to-digital (AD) converter includes a first AD conversion unit, a selector and a second AD conversion unit. The first AD conversion unit performs AD conversion of an analog signal in a first period to generate an upper-bit digital signal. The selector selects not less than one reference voltage based on the upper-bit digital signal to obtain a selected refer…
- Who is the assignee on this patent?
- Toshiba Kk
- What technology area does this patent fall under?
- Primary CPC classification H03M1/20. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Oct 13 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).