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US-2024272393-A1 · Aug 15, 2024 · US
Optical coupling device
US9104002B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9104002-B2 |
| Application number | US-201314016006-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 30, 2013 |
| Priority date | Mar 21, 2013 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
According to one embodiment, an optical coupling device includes a light emitting element configured to convert an electric signal into an optical signal, a photo transistor circuit configured to convert the optical signal into a current, the photo transistor circuit including a first transistor having a collector connected to a power source and an emitter through which the current is output, and a current mirror circuit including a second transistor having a collector connected to the emitter of the first transistor, a base connected to the emitter of the first transistor, and an emitter connected to a ground, and a third transistor having a collector connected to an output terminal, a base connected to the base of the second transistor, and a emitter connected to the ground.
First claim
Opening claim text (preview).
What is claimed is: 1. An optical coupling device comprising: a light emitting element configured to convert an electric signal into an optical signal; a photo transistor circuit configured to convert the optical signal into a current, the photo transistor circuit including a first transistor having a collector connected to a power source and an emitter through which the current is output; and a current mirror circuit including a second transistor having a collector directly c…
Assignees
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Classifications
Physics · mapped topic
- G02B6/4295Primary
Physics · mapped topic
Physics · mapped topic
- H10F77/953Primary
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9104002B2 cover?
- According to one embodiment, an optical coupling device includes a light emitting element configured to convert an electric signal into an optical signal, a photo transistor circuit configured to convert the optical signal into a current, the photo transistor circuit including a first transistor having a collector connected to a power source and an emitter through which the current is output, a…
- Who is the assignee on this patent?
- Toshiba Kk
- What technology area does this patent fall under?
- Primary CPC classification G02B6/4295. 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).