Control method for electric vehicle
US-9203255-B2 · Dec 1, 2015 · US
Capacitance sensing apparatus and touch screen apparatus
US9103858B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9103858-B2 |
| Application number | US-201213668999-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 5, 2012 |
| Priority date | Jul 31, 2012 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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Abstract
Official abstract text for this publication.
There is provided a capacitance sensing apparatus including a driving circuit unit applying a driving signal to a first capacitor at a predetermined interval; and a sensing circuit unit sensing a change in capacitance generated by the first capacitor based on the driving signal, in which a portion of a plurality of switches included in the sensing circuit unit operate at a first interval, the same as the interval of the driving signal, and remaining switches among the plurality of switches operate at a second interval, different from the first interval.
First claim
Opening claim text (preview).
What is claimed is: 1. A capacitance sensing apparatus, comprising: a driving circuit unit applying a driving signal having a predetermined cycle to a first capacitor; and a sensing circuit unit sensing a change in capacitance generated in the first capacitor based on the driving signal, and comprising: a first switch connected to an inverting terminal of a first operational amplifier, a second switch connected to an inverting terminal of a second operational amplifier, a t…
Assignees
Inventors
Classifications
- G01R27/26Primary
Physics · mapped topic
Physics · mapped topic
- G01R31/282Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US9103858B2 cover?
- There is provided a capacitance sensing apparatus including a driving circuit unit applying a driving signal to a first capacitor at a predetermined interval; and a sensing circuit unit sensing a change in capacitance generated by the first capacitor based on the driving signal, in which a portion of a plurality of switches included in the sensing circuit unit operate at a first interval, the s…
- Who is the assignee on this patent?
- Samsung Electro Mech
- What technology area does this patent fall under?
- Primary CPC classification G01R27/26. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Aug 11 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).