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Linear system coefficient estimating method, linear device column value estimating method, capacitance detecting method, integrated circuit, touch sensor system, and electronic device
US9501451B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9501451-B2 |
| Application number | US-201113879819-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 29, 2011 |
| Priority date | Nov 12, 2010 |
| Publication date | Nov 22, 2016 |
| Grant date | Nov 22, 2016 |
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Abstract
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A capacitance detecting method disclosed herein, which achieves a good detection accuracy, a good resolution, and a high-speed operation, (A)(a) drives, on the basis of code sequences (di (=di 1 , . . . , diN, where i=1, . . . , M)) which are orthogonal to one another, drive lines (DL 1 , . . . , DLM) in parallel for each of (I) a first capacitance column (Ci 1 ) between the drive lines and a first sense line (SL 1 ) and (II) a second capacitance column (Ci 2 ) between the drive lines and a second sense line (SL 2 ) and (b) outputs (sFirst=(s 11 , . . . , s 1 N)) from the column (Ci 1 ) and outputs (sSecond=(s 21 , . . . , s 2 N)) from the column (Ci 2 ), and (B) estimates (a) on the basis of inner product operation of the outputs (sFirst) and the code sequences (di), a first capacitance value in the column (Ci 1 ) and (b) on the basis of inner product operation of the outputs (sSecond) and the code sequences (di), a second capacitance value in the column (Ci 2 ).
First claim
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The invention claimed is: 1. A linear system coefficient estimating method, comprising the steps of: (A) (a) inputting, on a basis of M code sequences di (=di 1 , di 2 , . . . , diN, where i=1, . . . , M), and M<N) each of which has a length N, M inputs Xk (k=1, . . . , M) to a system which has a linear input and output and to which the M inputs Xk (k=1, . . . , M) are to be inputted, the system being represented by…
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- What does patent US9501451B2 cover?
- A capacitance detecting method disclosed herein, which achieves a good detection accuracy, a good resolution, and a high-speed operation, (A)(a) drives, on the basis of code sequences (di (=di 1 , . . . , diN, where i=1, . . . , M)) which are orthogonal to one another, drive lines (DL 1 , . . . , DLM) in parallel for each of (I) a first capacitance column (Ci 1 ) between the drive lines and a f…
- Who is the assignee on this patent?
- Miyamoto Masayuki, Sharp Kk
- What technology area does this patent fall under?
- Primary CPC classification G06F17/12. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Nov 22 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).