Open earphone
US-2024422466-A1 · Dec 19, 2024 · US
Circuit apparatus for recognizing earphone in mobile terminal
US9124709B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9124709-B2 |
| Application number | US-89799510-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 5, 2010 |
| Priority date | Oct 14, 2009 |
| Publication date | Sep 1, 2015 |
| Grant date | Sep 1, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A circuit apparatus for recognizing an earphone in a mobile terminal is provided. The apparatus includes a plurality of devices, a wiring for recognizing the number of poles of the earphone, and a comparator. The plurality of devices are connected between a microphone bias power and a wiring that receives a signal from a microphone of an earphone. The wiring that recognizes the number of poles of the earphone branches from a wiring between at least two of the devices. The comparator compares a voltage of the wiring that recognizes the number of poles with a reference voltage to output a result signal.
First claim
Opening claim text (preview).
What is claimed is: 1. A circuit apparatus for recognizing an earphone in a mobile terminal, the apparatus comprising: a plurality of devices connected between a microphone bias power and a wiring that receives a signal from a microphone of an earphone; a wiring, for recognizing the number of poles of the earphone, that branches from between at least two of the devices and that is separate from microphone wiring of an earphone; and a comparator for comparing a voltage of the w…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9124709B2 cover?
- A circuit apparatus for recognizing an earphone in a mobile terminal is provided. The apparatus includes a plurality of devices, a wiring for recognizing the number of poles of the earphone, and a comparator. The plurality of devices are connected between a microphone bias power and a wiring that receives a signal from a microphone of an earphone. The wiring that recognizes the number of poles …
- Who is the assignee on this patent?
- Lee Woo-Cheol, Samsung Electronics Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04M1/6058. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 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).