CN202261181U - Terminal using two-in-one loudspeaker - Google Patents
Terminal using two-in-one loudspeaker Download PDFInfo
- Publication number
- CN202261181U CN202261181U CN 201120205141 CN201120205141U CN202261181U CN 202261181 U CN202261181 U CN 202261181U CN 201120205141 CN201120205141 CN 201120205141 CN 201120205141 U CN201120205141 U CN 201120205141U CN 202261181 U CN202261181 U CN 202261181U
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- China
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- loudspeaker
- signal
- audio frequency
- frequency amplifier
- receiver
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Abstract
The utility model discloses a terminal using a two-in-one loudspeaker. The terminal using the two-in-one loudspeaker comprises a loudspeaker signal channel, a two-in-one loudspeaker and a gain adjustable audio frequency amplifier, wherein the loudspeaker signal channel is connected with the two-in-one loudspeaker through the gain adjustable audio frequency amplifier. According to the utility model, a receiver signal and a loudspeaker signal are both formed and output by using the loudspeaker signal channel without additionally introducing a peripheral device for switching the receiver signal and the loudspeaker signal so that the design and manufacture cost of the product is largely saved.
Description
Technical field
The utility model relates to the signal processing technology field, relates in particular to a kind of terminal of adopting two-in-one loudspeaker.
Background technology
Along with the continuous development of wireless communication technology, can realize that the wireless communications products of call function is used widely.In these products; All be designed with loud speaker and receiver; Output call voice when wherein loud speaker is used to export ringing tone or uses hand-free function; Receiver is used to export call voice, and the user can select audio frequency still to export from loud speaker from receiver output through actions menu voluntarily: when the user selects audio frequency when loud speaker is exported, receiver is not exported; When the user selects audio frequency when receiver is exported, loud speaker is not exported.
In many designs, loud speaker and receiver are two devices, are assemblied in positions different on the terminal respectively, draw one group of connecting line respectively, use different drive circuits.And in other designs; For reducing volume and reducing cost, in the terminal, use two-in-one loudspeaker (being about to loud speaker and the two-in-one device of receiver), this device is a monomer device; Not only can be used as the receiver use but also can be used as the loud speaker use, and only draw one group of connecting line.
The common method that adopts of device that drives this two-in-one loudspeaker at present has:
(1) implementation is shown in Fig. 1 (the Gain Adjustable audio frequency amplifier is built in the loudspeaker signal passage) and Fig. 2 (it is outer that the Gain Adjustable audio frequency amplifier is placed on the loudspeaker signal passage); Directly loud speaker and receiver are exported and linked together and be connected on the two-in-one device of loud speaker and receiver; This output circuit that requires audio output device spare (like BBP) is high resistant when not exporting; Receiver output high resistant when being loud speaker output, loud speaker output high resistant during receiver output; Otherwise will exist one tunnel output to pour into electric current and cause abnormity of power supply, even burn chip for driving to another road output.Yet the demand of this output high resistant can't satisfy in part audio output device spare (like BBP).
(2) for the audio driven device (like BBP) that can not guarantee to export high resistant in (1); Need its receiver driving and speaker drive be drawn; Through a series of control circuits; Be connected on the two-in-one device of loud speaker and receiver, implementation has increased and prevents that electric current is anti-and irritate and the overshoot circuit shown in Fig. 3 (the Gain Adjustable audio frequency amplifier is built in the loudspeaker signal passage) and Fig. 4 (it is outer that the Gain Adjustable audio frequency amplifier is placed on the loudspeaker signal passage).The problem that the road output that control circuit can prevent to describe in (1) pours into electric current and causes abnormity of power supply to another road output, but adopt such circuit comparatively complicated and cause cost to rise.
Summary of the invention
The purpose of the utility model is to provide a kind of terminal, and receiver signal and loudspeaker signal all utilize the loudspeaker signal passage to form and output, practice thrift the realization cost that drives two-in-one loudspeaker.
The purpose of the utility model realizes through following technical scheme:
A kind of terminal of adopting two-in-one loudspeaker comprises loudspeaker signal passage, two-in-one loudspeaker and Gain Adjustable audio frequency amplifier, and said loudspeaker signal passage is connected with two-in-one loudspeaker through the Gain Adjustable audio frequency amplifier.
Wherein, said Gain Adjustable audio frequency amplifier is built in the loudspeaker signal passage.
Wherein, said Gain Adjustable audio frequency amplifier places outside the loudspeaker signal passage, is connected between loudspeaker signal passage and the two-in-one loudspeaker; Said terminal also comprises gain control circuit, is connected with said Gain Adjustable audio frequency amplifier.
Compared with prior art, the utility model embodiment has following beneficial effect:
In the utility model, receiver signal and loudspeaker signal all utilize the loudspeaker signal passage to form and output, do not need extra introducing to carry out the peripheral components that receiver signal and loudspeaker signal switch, the design and the manufacturing cost of having practiced thrift product greatly.
Description of drawings
Fig. 1 is the implementation that traditional a kind of audio frequency amplifier drives two-in-one loudspeaker when built-in;
Fig. 2 is the implementation that traditional a kind of audio frequency amplifier drives two-in-one loudspeaker when external;
Fig. 3 is the implementation that traditional another kind of audio frequency amplifier drives two-in-one loudspeaker when external;
Fig. 4 is the implementation that traditional another kind of audio frequency amplifier drives two-in-one loudspeaker when external;
Fig. 5 is the implementation that the audio frequency amplifier that provides of the utility model embodiment drives two-in-one loudspeaker when external;
Fig. 6 is the implementation that the audio frequency amplifier that provides of the utility model embodiment drives two-in-one loudspeaker when external.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Loudspeaker signal and receiver signal are based on different application requirements, have signal amplitude and other audio signal of DC component equal difference to what baseband signal was handled formation, and the receiver signal is compared with loudspeaker signal and had the signal amplitude of telling somebody what one's real intentions are.Switch the output of receiver signal and loudspeaker signal according to application demand at terminal in the present embodiment.
The loudspeaker signal passage is meant in the terminal and converts baseband signal to loudspeaker signal in the prior art; And with loudspeaker signal export to loudspeaker signal in the two-in-one loudspeaker process device and the path that circuit constitutes of process, comprise loudspeaker signal processing module (be used for handle form loudspeaker signal to baseband signal), Gain Adjustable audio frequency amplifier when built-in () etc.
In the present embodiment receiver signal is formed and output through the loudspeaker signal passage, thus receiver signal and the shared output channel of loudspeaker signal, do not need the extra device that is provided with, practiced thrift the design and the manufacturing cost of product greatly.Simultaneously, do not need extra introducing to carry out the peripheral components that receiver signal and loudspeaker signal switch, avoided because of introduce that peripheral components brings such as component failure, cause problem such as sound quality deterioration.
See also Fig. 5 and shown in Figure 6, in the present embodiment, the terminal comprises:
Loudspeaker signal passage: in order to form receiver signal and loudspeaker signal and according to output;
Gain Adjustable audio frequency amplifier: can be built in the loudspeaker signal passage, also can be placed on outside the loudspeaker signal passage, in order to big or small according to demand adjustment gain;
Two-in-one loudspeaker is in order to receive receiver signal or loudspeaker signal and output after treatment.
In above-mentioned terminal, the loudspeaker signal passage is connected with two-in-one loudspeaker through the Gain Adjustable audio frequency amplifier.When two-in-one loudspeaker uses as receiver,, require output gain less because of pressing close to human body; When using as loud speaker, because of loud speaker away from human body, require output gain bigger.Thereby, in using the utility model process,, reduce the gain parameter of Gain Adjustable audio frequency amplifier when the user selects audio frequency when receiver is exported; When the user selects audio frequency when loud speaker is exported, increase the gain parameter of Gain Adjustable audio frequency amplifier.For improving output tonequality, for the two-in-one loudspeaker that can adjust the output frequency response curve, can adopt the different tone filter parameter of two covers, realize switching the frequency response requirement that adapts to loud speaker and receiver with software.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.
Claims (3)
1. a terminal of adopting two-in-one loudspeaker is characterized in that, comprises loudspeaker signal passage, two-in-one loudspeaker and Gain Adjustable audio frequency amplifier, and said loudspeaker signal passage is connected with two-in-one loudspeaker through the Gain Adjustable audio frequency amplifier.
2. terminal as claimed in claim 1 is characterized in that, said Gain Adjustable audio frequency amplifier is built in the loudspeaker signal passage.
3. terminal as claimed in claim 1 is characterized in that, said Gain Adjustable audio frequency amplifier places outside the loudspeaker signal passage, is connected between loudspeaker signal passage and the two-in-one loudspeaker; Said terminal also comprises gain control circuit, is connected with said Gain Adjustable audio frequency amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120205141 CN202261181U (en) | 2011-06-17 | 2011-06-17 | Terminal using two-in-one loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120205141 CN202261181U (en) | 2011-06-17 | 2011-06-17 | Terminal using two-in-one loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202261181U true CN202261181U (en) | 2012-05-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120205141 Expired - Fee Related CN202261181U (en) | 2011-06-17 | 2011-06-17 | Terminal using two-in-one loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202261181U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104967946A (en) * | 2015-06-10 | 2015-10-07 | 上海芯望电子技术有限公司 | Multichannel audio processor |
| CN108769311A (en) * | 2018-05-29 | 2018-11-06 | 维沃移动通信有限公司 | A kind of method for controlling mobile terminal and mobile terminal |
| CN111225315A (en) * | 2020-02-27 | 2020-06-02 | 维沃移动通信有限公司 | Audio playing device, audio playing method and electronic equipment |
-
2011
- 2011-06-17 CN CN 201120205141 patent/CN202261181U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104967946A (en) * | 2015-06-10 | 2015-10-07 | 上海芯望电子技术有限公司 | Multichannel audio processor |
| CN104967946B (en) * | 2015-06-10 | 2018-10-09 | 上海韦尔半导体股份有限公司 | A kind of multi-channel audio processor |
| CN108769311A (en) * | 2018-05-29 | 2018-11-06 | 维沃移动通信有限公司 | A kind of method for controlling mobile terminal and mobile terminal |
| CN111225315A (en) * | 2020-02-27 | 2020-06-02 | 维沃移动通信有限公司 | Audio playing device, audio playing method and electronic equipment |
| CN111225315B (en) * | 2020-02-27 | 2022-01-04 | 维沃移动通信有限公司 | Audio playing device, audio playing method and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518057 Nanshan District science and Technology Industrial Park, Guangdong Province, high tech Industrial Park, No. 6 South Road, building No. 29, South Block, layer 6 Patentee after: Nubian Technologies Ltd. Address before: 518057 Nanshan District science and Technology Industrial Park, Guangdong Province, high tech Industrial Park, No. 6 South Road, building No. 29, South Block, layer 6 Patentee before: Shenzhen ZTE Mobile Tech Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20170617 |