Speakerphone control for mobile device
US-9332104-B2 · May 3, 2016 · US
Method of improving sound quality of mobile communication terminal under receiver mode
US9674330B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9674330-B2 |
| Application number | US-201615004982-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 24, 2016 |
| Priority date | Jun 10, 2015 |
| Publication date | Jun 6, 2017 |
| Grant date | Jun 6, 2017 |
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- Title
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Abstract
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A mobile communication terminal is disclosed. The mobile communication terminal has Receiver Mode and hands-free mode and switchable between the modes. The terminal includes a first sound generator, which works under Receiver Mode and used for receiving and playing voice signal; a second sound generator, which works under Receiver Mode and Hands-free Mode and used for receiving and playing voice signal; when the mobile communication terminal works under Receiver Mode, the first sound generator and the second sound generator receive and play voice signal at the same time. A method of improving sound quality of the mobile communication terminal is also provided.
First claim
Opening claim text (preview).
What is claimed is: 1. A mobile communication terminal having Receiver Mode and hands-free mode and switchable between the modes, including: a first sound generator, which works under Receiver Mode and used for receiving and playing voice signal; a second sound generator, which works under Receiver Mode and Hands-free Mode and used for receiving and playing voice signal; when the mobile communication terminal works under Receiver Mode, the first sound generator and the second sound generator receive and play voice signal at the same time; wherein, the second sound generator has better low frequency performance than the first sound generator. 2. The mobile communication terminal described in claim 1 , further including a first amplifier connected electrically with the first sound generator and a second amplifier connected electrically with the second sound generator, wherein the first amplifier and the second amplifier are configured for amplifying power of the voice signal outputting to the first sound generator and the second sound generator respectively. 3. The mobile communication terminal said in claim 2 further including a first equalizer connected electrically with the first amplifier and a second equalizer connected electrically with the second amplifier, wherein the first equalizer and the second equalizer are configured for regulating gain of the voice signal outputting to the first sound generator and the second sound generator respectively. 4. A method of improving sound quality of the mobile communication terminal under the Receiver Mode described in claim 1 , wherein the method includes steps of: the first sound generator and the second sound generator receive and play voice signal at the same time. 5. The method of improving sound quality of the mobile communication terminal in claim 4 , wherein the second sound generator is close to the first sound generator. 6. A mobile communication terminal having Receiver Mode and hands-free mode and switchable between the modes, including: a first sound generator, which works under Receiver Mode and used for receiving and playing voice signal; a second sound generator, which works under Receiver Mode and Hands-free Mode and used for receiving and playing voice signal; a low-pass filter working under Receiver Mode, connected electrically with the second generator, and presetting with one cut-off frequency for filtering the voice signal output to the second sound generator that is higher than that of the cut-off frequency; when the mobile communication terminal works under Receiver Mode, the first sound generator and the second sound generator receive and play voice signal at the same time; wherein, the second sound generator has better low frequency performance than the first sound generator. 7. The mobile communication terminal described in claim 6 , further including a first amplifier connected electrically with the first sound generator and a second amplifier connected electrically between the second sound generator and the low-pass filter, wherein the first amplifier and the second amplifier configured for amplifying power of the voice signal outputting to the first sound generator and the second sound generator respectively. 8. The mobile communication terminal said in claim 7 further including a first equalizer connected electrically with the first amplifier and a second equalizer connected electrically between the low-pass filter and the second amplifier, wherein the first equalizer and the second equalizer are configured for regulating gain of the voice signal outputting to the first sound generator and the second sound generator respectively.
Assignees
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Classifications
- H04M1/6041Primary
Portable telephones adapted for handsfree use · CPC title
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Frequently asked questions
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- What does patent US9674330B2 cover?
- A mobile communication terminal is disclosed. The mobile communication terminal has Receiver Mode and hands-free mode and switchable between the modes. The terminal includes a first sound generator, which works under Receiver Mode and used for receiving and playing voice signal; a second sound generator, which works under Receiver Mode and Hands-free Mode and used for receiving and playing voic…
- Who is the assignee on this patent?
- Wang Hongxing, Zhu Bingke, Aac Technologies Pte Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04M1/6041. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 06 2017 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).