CN207783092U - Avoid omitting the earphone of external information - Google Patents
Avoid omitting the earphone of external information Download PDFInfo
- Publication number
- CN207783092U CN207783092U CN201820162261.7U CN201820162261U CN207783092U CN 207783092 U CN207783092 U CN 207783092U CN 201820162261 U CN201820162261 U CN 201820162261U CN 207783092 U CN207783092 U CN 207783092U
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- sound
- earphone
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- digital
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Abstract
The utility model discloses the earphones for avoiding omitting external information, include headset body with even number loudspeaker and the signal input interface being connected on earphone, it further include the sound pick-up group being arranged in headset body, the sound pick-up group and signal input interface are connect by analog-to-digital conversion with DSP, and DSP passes sequentially through digiverter and power amplifier is connect with loudspeaker；Method of this programme by adding sound pick-up for earphone, simultaneously, the sound of the external environment of sound pick-up acquisition is mixed with the sound that the needs that signal input interface inputs play, generate the sound of digital 5.1 sound channels, the voice data translation of digital 5.1 sound channels is driving loudspeaker work after analog signal by analog-digital commutator, due to using 5.1 sound channel technologies, user can identify the source direction of sound from the sound of earphone, reliability higher effectively increases the safety that earphone is used on road.
Description
Technical field
The utility model is related to a kind of earphones, and in particular to avoid omitting the earphone of external information.
Background technology
Earphone is a pair of of converting unit, it receives the electric signal that media player or receiver are sent out, using close to ear
Piece loud speaker convert it into the sound wave that can be heard.Earphone is usually separable with media player, is inserted using one
Head connection.Benefit is can to listen to sound equipment alone in the case where not influencing other people；Also the sound that ambient enviroment can be separated, to
The people that recording studio, DJ, journey, movement etc. use under noisy environment of making an uproar is helpful.Earphone original is made on phone and radio
, but it is prevailing with portable electronic devices, earphone is chiefly used in mobile phone, walkman, radio, portable electronic game sum digit
Reproducing apparatus for phonotape etc..
If but when using earphone on street, in addition to because of volume to be turned up, and causes outside hearing loss, be absorbed in audition
It is happy, it is easy to enable user lose alertness to the sound of periphery, increase the chance caused danger, should not use.
Utility model content
If technical problem to be solved in the utility model is when using earphone on street, in addition to because of volume to be turned up,
And cause outside hearing loss, it is absorbed in and listens to music, it is easy to enables user lose alertness to the sound of periphery, increase generation
Dangerous chance is, and it is an object of the present invention to provide avoid omitting the earphone of external information, if solving when using earphone on street, in addition to because
Volume is turned up, and causes outside hearing loss, is absorbed in and listens to music, it is easy to user be enabled to lose vigilance to the sound of periphery
Property, the problem of increasing the chance caused danger.
The utility model is achieved through the following technical solutions：
The earphone for avoiding omitting external information includes headset body with even number loudspeaker and the letter being connected on earphone
Number input interface, further includes the sound pick-up group being arranged in headset body, the sound pick-up group and signal input interface pass through mould
Number conversion is connect with DSP, and DSP passes sequentially through digiverter and power amplifier is connect with loudspeaker；
Sound pick-up group：External voice data are sent to analog-digital commutator by the sound around acquiring；
Analog-digital commutator：The input sound that the external voice data and signal input interface that sound pick-up group is sent are sent
Data are converted into digital signal and are sent to DSP；
DSP：The signal received according to Dolby Headphone interface differential techniques is handled, and is generated 5.1 sound channel signals and is sent
To digiverter；
Digiverter：It converts DSP 5.1 channel sound signals generated to analog signal and is sent to power amplifier；
Power amplifier：Driving loudspeaker work after carrying out power amplification to the signal received.
Method of this programme by adding sound pick-up for earphone, meanwhile, by sound pick-up acquisition external environment sound with
The sound that the needs of signal input interface input play is mixed, and hybrid technology uses existing Dolby Headphone skills
Art relies on DSP and completes, and can generate the sound of digital 5.1 sound channels, and analog-digital commutator is by the voice data of digital 5.1 sound channels
Driving loudspeaker work after being converted into analog signal, due to using 5.1 sound channel technologies, user that can be identified from the sound of earphone
The source direction of sound, reliability higher effectively increase the safety that earphone is used on road.
It is additionally provided with filter between the sound pick-up group and analog-digital commutator.
Be mainly the whistle sound of vehicle since sound pick-up needs the sound acquired on road, the frequency of this kind of sound compared with
Therefore height by being additionally provided with filter between sound pick-up group and analog-digital commutator, may be implemented to certain frequency range
Sound is filtered, and reduces noise.
It is additionally provided with analog switch between the sound pick-up group and filter.
When using earphone in a safe environment due to the use of person, when needing a safer environment, it can pass through
Analog switch turns off the connection between sound pick-up group and analog-digital commutator, reaches the opinion of shielding external temperature.
The power amplifier includes filter and A class amplification circuits, and digiverter passes sequentially through filter and A
Class amplification circuit is connect with loudspeaker.Existing technology generally uses D class amplification circuits, and compared with D class amplification circuits, when to effect
When rate is of less demanding, most of small signal-wire amplifiers can be designed to that A classes, i.e. output stage element are always at conducting
Area.Class-a amplifier is generally more preferable than other type linearities, also relatively simple, but efficiency is very low.This class A amplifier A is the most frequently used
In small signal grade or low power applications.Due to through DSP carry out mixing and Dolby Headphone technical finesses after, in order to make
5.1 sound channel effects are more true to nature, most effective can be restored to sound using class-a amplifier.
The utility model compared with prior art, has the following advantages and advantages：
1, the utility model avoids omitting the earphone of external information, and extraneous sound, peace can be heard when being used on road
Full property higher；
2, the utility model avoids omitting the earphone of external information, user from capable of controlling whether to receive extraneous voice signal,
The advantages of having both existing earphone.
Description of the drawings
Attached drawing described herein is used for providing further understanding the utility model embodiment, constitutes the one of the application
Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings：
Fig. 1 is Tthe utility model system structural schematic diagram.
Specific implementation mode
To make the purpose of this utility model, technical solution and advantage be more clearly understood, with reference to embodiment and attached drawing,
The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this
Utility model is not intended to limit the scope of the present invention.
Embodiment 1
As shown in Figure 1, the utility model avoids omitting the earphone of external information, include the earphone sheet with even number loudspeaker
Body and the 3.5mm signal input interfaces being connected on earphone, further include the sound pick-up group being arranged in headset body, the pickup
Device group and signal input interface are connect by analog-to-digital conversion with TMS320DSP, and DSP passes sequentially through digiverter and power amplifier electricity
Road is connect with loudspeaker；Method of this programme by adding sound pick-up for earphone, meanwhile, by the sound of the external environment of sound pick-up acquisition
Sound is mixed with the sound that the needs that signal input interface inputs play, and hybrid technology uses existing Dolby
Headphone technologies rely on DSP and complete, and can generate the sound of digital 5.1 sound channels, and analog-digital commutator is by digital 5.1 sound channels
Voice data translation be analog signal after driving loudspeaker work, due to use 5.1 sound channel technologies, user can be from the sound of earphone
The source direction of sound is identified in sound, reliability higher effectively increases the safety that earphone is used on road.It is described to pick up
It is additionally provided with filter between sound device group and analog-digital commutator.Since sound pick-up needs the sound acquired main on road
It is the whistle sound of vehicle, the frequency of this kind of sound is higher, therefore, by being also set up between sound pick-up group and analog-digital commutator
There is high pass filtering device, may be implemented to be filtered the sound of certain frequency range, reduces noise.The sound pick-up group and filtering fill
BL1551 analog switches are additionally provided between setting.Due to the use of person in a safe environment use earphone when, need one more
When the environment of safety, the connection between sound pick-up group and analog-digital commutator can be turned off by analog switch, it is outer to reach shielding
The opinion of portion's temperature.The power amplifier includes filter and A class amplification circuits, and digiverter passes sequentially through filtering dress
It sets with A class amplification circuits with loudspeaker and connect.Existing technology generally uses D class amplification circuits, and compared with D class amplification circuits,
When not high to efficiency requirements, most of small signal-wire amplifiers can be designed to that A classes, i.e. output stage element are always at
Area is connected.Class-a amplifier is generally more preferable than other type linearities, also relatively simple, but efficiency is very low.This class A amplifier A is most
It is usually used in small signal grade or low power applications.Due to after DSP carries out mixing and Dolby Headphone technical finesses, being
Keep the 5.1 sound channel effects more true to nature, most effective sound can be restored using class-a amplifier.Sound pick-up group：Around acquisition
Sound, external voice data are sent to analog-digital commutator；
Analog-digital commutator：The input sound that the external voice data and signal input interface that sound pick-up group is sent are sent
Data are converted into digital signal and are sent to DSP；
DSP：The signal received according to Dolby Headphone interface differential techniques is handled, and is generated 5.1 sound channel signals and is sent
To digiverter；
Digiverter：It converts DSP 5.1 channel sound signals generated to analog signal and is sent to power amplifier；
Power amplifier：Driving loudspeaker work after carrying out power amplification to the signal received.
Above-described specific implementation mode, to the purpose of this utility model, technical solution and advantageous effect carried out into
One step is described in detail, it should be understood that the foregoing is merely specific embodiment of the present utility model, is not used to limit
Determine the scope of protection of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (4)
- Include headset body with even number loudspeaker and the signal being connected on earphone 1. avoiding omitting the earphone of external information Input interface, which is characterized in that further include the sound pick-up group being arranged in headset body, the sound pick-up group and signal input connect Mouth is connect by analog-to-digital conversion with DSP, and DSP passes sequentially through digiverter and power amplifier is connect with loudspeaker；Sound pick-up group：External voice data are sent to analog-digital commutator by the sound around acquiring；Analog-digital commutator：The input audio data that the external voice data and signal input interface that sound pick-up group is sent are sent It is converted into digital signal and is sent to DSP；DSP：The signal received according to Dolby Headphone interface differential techniques is handled, and is generated 5.1 sound channel signals and is sent to number Digital-to-analog conversion apparatus；Digiverter：It converts DSP 5.1 channel sound signals generated to analog signal and is sent to power amplifier；Power amplifier：Driving loudspeaker work after carrying out power amplification to the signal received.
- 2. the earphone according to claim 1 for avoiding omitting external information, which is characterized in that the sound pick-up group and modulus Filter is additionally provided between conversion equipment.
- 3. the earphone according to claim 1 for avoiding omitting external information, which is characterized in that the sound pick-up group and filtering Analog switch is additionally provided between device.
- 4. the earphone according to claim 1 for avoiding omitting external information, which is characterized in that the power amplifier includes filter Wave apparatus and A class amplification circuits, digiverter passes sequentially through filter and A class amplification circuits are connect with loudspeaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820162261.7U CN207783092U (en) | 2018-01-30 | 2018-01-30 | Avoid omitting the earphone of external information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820162261.7U CN207783092U (en) | 2018-01-30 | 2018-01-30 | Avoid omitting the earphone of external information |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207783092U true CN207783092U (en) | 2018-08-28 |
Family
ID=63210943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820162261.7U Expired - Fee Related CN207783092U (en) | 2018-01-30 | 2018-01-30 | Avoid omitting the earphone of external information |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207783092U (en) |
-
2018
- 2018-01-30 CN CN201820162261.7U patent/CN207783092U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180828 Termination date: 20190130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |