Load drive circuit, light emitting diode driver, and display device
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Light source apparatus, electronic device, and control methods therefor
US9099043B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9099043-B2 |
| Application number | US-201313750485-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 25, 2013 |
| Priority date | Jan 31, 2012 |
| Publication date | Aug 4, 2015 |
| Grant date | Aug 4, 2015 |
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Abstract
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A light source device including: a boost-type conversion unit configured to convert an input AC voltage into a DC voltage; a detection unit configured to detect a voltage value of the input AC voltage; and a control unit configured to control the brightness of a light source unit on the basis of an input image signal. The control unit changes the timing of brightness change of the light source unit according to a voltage value detected by the detection unit.
First claim
Opening claim text (preview).
What is claimed is: 1. A light source device comprising: a boost-type conversion unit configured to convert an input AC voltage into a DC voltage; a detection unit configured to detect a voltage value of the input AC voltage; and a control unit configured to control a brightness of a light source unit on the basis of an input image signal, wherein in a case when there is a request to execute brightness increase control of the light source unit in a period in which a differen…
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Physics · mapped topic
Electricity · mapped topic
- G09G3/3406Primary
Physics · mapped topic
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- What does patent US9099043B2 cover?
- A light source device including: a boost-type conversion unit configured to convert an input AC voltage into a DC voltage; a detection unit configured to detect a voltage value of the input AC voltage; and a control unit configured to control the brightness of a light source unit on the basis of an input image signal. The control unit changes the timing of brightness change of the light source …
- Who is the assignee on this patent?
- Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification G09G3/3406. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Aug 04 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).