Electronic Devices with High Frequency Wireless Communication Capabilities
US-2024187095-A1 · Jun 6, 2024 · US
Optical transmitter and waveform compensation method
US9203518B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9203518-B2 |
| Application number | US-201213561552-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 30, 2012 |
| Priority date | Sep 29, 2011 |
| Publication date | Dec 1, 2015 |
| Grant date | Dec 1, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
An optical transmitter includes an EA modulator, a photocurrent detection circuit, a modulator drive circuit, and a CPU. The EA modulator converts an input signal into an optical signal and outputs the optical signal. The photocurrent detection circuit detects an optical absorption current (a photocurrent) in the EA modulator. The modulator drive circuit controls the EA modulator. The CPU calculates a voltage to be applied to the modulator drive circuit based on the optical absorption current detected by the photocurrent detection circuit.
First claim
Opening claim text (preview).
What is claimed is: 1. An optical transmitter comprising: an optical modulator that converts an input signal into an optical signal and outputs the optical signal; a current detection circuit that detects an optical absorption current in the optical modulator; a drive circuit that drives the optical modulator; a processor that calculates a voltage to be applied to the drive circuit on the basis of the optical absorption current detected by the current detection circuit; and…
Assignees
Inventors
Classifications
- H04B10/505Primary
Electricity · mapped topic
Electricity · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9203518B2 cover?
- An optical transmitter includes an EA modulator, a photocurrent detection circuit, a modulator drive circuit, and a CPU. The EA modulator converts an input signal into an optical signal and outputs the optical signal. The photocurrent detection circuit detects an optical absorption current (a photocurrent) in the EA modulator. The modulator drive circuit controls the EA modulator. The CPU calcu…
- Who is the assignee on this patent?
- Ishii Toshio, Fujitsu Optical Components Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04B10/505. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 01 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).