Angle detection apparatus

US8933690B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8933690-B2
Application numberUS-201113234022-A
CountryUS
Kind codeB2
Filing dateSep 15, 2011
Priority dateJan 25, 2011
Publication dateJan 13, 2015
Grant dateJan 13, 2015

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  2. Abstract

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Abstract

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According to an embodiment of the invention, an angle detection apparatus detects the angle of a rotation axis of a rotating device to generate a first signal and a second signal perpendicular to the first signal using the angle detection unit. The first AD conversion unit receives the first signal to perform an analog-to-digital conversion of the first signal. The second AD conversion unit receives the second signal to perform an analog-to-digital conversion of the second signal. The first offset correction unit receives a third signal output from the first AD conversion unit to perform an offset correction of the third signal when the third signal is outside a predetermined range. The second offset correction unit receives a fourth signal output from the second AD conversion unit to perform an offset correction of the fourth signal when the fourth signal is outside the predetermined range.

First claim

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What is claimed is: 1. An angle detection apparatus to detect an angle of a rotation axis of a rotating device to generate a first signal and a second signal perpendicular to the first signal using an angle detection unit, comprising: a first analog-to digital (AD) conversion unit to receive the first signal, the first analog-to-digital (AD) conversion unit to perform an analog-to-digital conversion of the first signal; a second analog-to digital (AD) conversion unit to receive…

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What does patent US8933690B2 cover?
According to an embodiment of the invention, an angle detection apparatus detects the angle of a rotation axis of a rotating device to generate a first signal and a second signal perpendicular to the first signal using the angle detection unit. The first AD conversion unit receives the first signal to perform an analog-to-digital conversion of the first signal. The second AD conversion unit rec…
Who is the assignee on this patent?
Shinohara Makoto, Toshiba Kk
What technology area does this patent fall under?
Primary CPC classification G01R33/072. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Jan 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).