Method and device for analog-to-digital conversion of signals, corresponding apparatus
US-9455732-B2 · Sep 27, 2016 · US
Analog to digital conversion circuit, image sensing device having the same and method of driving image sensing device
US8941528B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8941528-B2 |
| Application number | US-201314049946-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 9, 2013 |
| Priority date | May 30, 2013 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
An analog-to-digital conversion circuit includes a reference current generating unit suitable for generating a reference current varied by a given level in a sampling stage, a ramp voltage generating unit suitable for generating a ramp voltage corresponding to the reference current, and a comparison unit suitable for comparing the ramp voltage with a voltage level of a pixel signal to output a comparison signal.
First claim
Opening claim text (preview).
What is claimed is: 1. An analog-to-digital conversion circuit comprising: a plurality of current sources sequentially activated in a plurality of sampling stages, each current source suitable for generating a reference current which is adjusted upward or downward by a different level in a corresponding sampling stage; a ramp voltage generating unit suitable for generating a ramp voltage corresponding to the reference current; and a comparison unit suitable for comparing the r…
Assignees
Inventors
Classifications
- H03M1/144Primary
Electricity · mapped topic
Electricity · mapped topic
- H04N25/78Primary
Electricity · mapped topic
Electricity · mapped topic
- H04N5/37455Primary
Electricity · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8941528B2 cover?
- An analog-to-digital conversion circuit includes a reference current generating unit suitable for generating a reference current varied by a given level in a sampling stage, a ramp voltage generating unit suitable for generating a ramp voltage corresponding to the reference current, and a comparison unit suitable for comparing the ramp voltage with a voltage level of a pixel signal to output a …
- Who is the assignee on this patent?
- Sk Hynix Inc
- What technology area does this patent fall under?
- Primary CPC classification H03M1/144. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 27 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).