CN2733796Y - 2.1 track surround sound earphone for home cinema - Google Patents
2.1 track surround sound earphone for home cinema Download PDFInfo
- Publication number
- CN2733796Y CN2733796Y CN 200420071001 CN200420071001U CN2733796Y CN 2733796 Y CN2733796 Y CN 2733796Y CN 200420071001 CN200420071001 CN 200420071001 CN 200420071001 U CN200420071001 U CN 200420071001U CN 2733796 Y CN2733796 Y CN 2733796Y
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- loudspeaker
- earphone
- sound channel
- operational amplifier
- circulating
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Abstract
The utility model of a 2. 1 track surround sound earphone for home cinema relates to a surround sound earphone, in particular to the 2. 1 track surround sound earphone for home cinema. The 2. 1 track surround sound earphone for home cinema comprises an earphone body (1), an audio frequency power amplification controller (3), a power supply, at least four speaker monomers are arranged in the earphone body (1), and the output end of the audio frequency power amplification controller (3) is connected to the earphone body (1) through the conducting line. The utility model has the multi-track sounds from different program sources unified into the same playing system. In order to support various program sound sources, including the HDTV and the DVD line-by-line scanning, the utility model can conduct special processing of the program signals, respectively amplifies the audio frequency signals of each track, and then uses the 2. 1 track to replay to realize the home cinema immediate surround effect of good bass effect through the headphone.
Description
Technical field
The utility model relates to circulating earphone, particularly 2.1 sound channel home theater circulating earphones.
Background technology
The home theater audio frequency broadcast system is along with the requirement that the raising and the people of technical merit reappear in family or little space the movie theatre result of broadcast constantly enters in the family, but there is the problem that several aspects are arranged at present: at first, in order to reach the home theater effect, usually need to be equipped with each special-purpose power amplifier, and connect the audio amplifier match with it, it then is the too small shortcoming of more family area that audio amplifier is put, and volume is excessive, causes noise to disturb the people in night.Secondly, traditional earphone product sound-reproducing system disappearance, traditional dual-channel headphone or the advanced virtual 5.1 sound channel earphones of numeral (DIGITAL), sound reproduction fails to satisfy real home theater sound channel effect.Moreover earphone and home theater audio amplifier playback system are failed compatible fully.
Summary of the invention
The purpose of this utility model is to avoid above-mentioned weak point to provide 2.1 effective sound channel home theater circulating earphones of a kind of sound reproduction.
The purpose of this utility model can realize like this, design a kind of 2.1 sound channel home theater circulating earphones, comprise earphone body, audio power amplification controller, power supply, each is provided with at least 2 loudspeaker monomers in the left and right earphone of described earphone body, and the output of audio power amplification controller is connected via wires to the earphone body.
The utility model makes the multi-channel sound from different program source, can both unify identical Play System.For the various program sources of sound of supporting to comprise HDTV and line by line scan DVD, the utility model can carry out special processing to programme signal, amplify each channel audio signal respectively, reset out with the mode of 2.1 sound channels then, on headphone, realize the good home theater of the bass effect surrounding effect of coming personally.
Description of drawings
Fig. 1 is the functional-block diagram of one of the utility model preferred embodiment.
Fig. 2 is the schematic diagram of the utility model preferred embodiment.
Fig. 3 is the loudspeaker layout plan of one of the utility model preferred embodiment.
Fig. 4 is two a loudspeaker layout plan of the utility model preferred embodiment.
Fig. 5 is two a circuit diagram of the utility model preferred embodiment.
The utility model will be further described below in conjunction with embodiment for embodiment.
As shown in Figure 1 and Figure 2, a kind of 2.1 sound channel home theater circulating earphones, comprise earphone body 1, audio power amplification controller 3, power supply, each is provided with at least 2 loudspeaker monomers 2 in the left and right earphone of described earphone body 1, and the output of audio power amplification controller 3 is connected via wires to earphone body 1.
Audio power amplifies control box 3 when external direct current power supply (or carrying DC power supply) and DVD/VCD signal, and audio power amplification control box 3 amplifies each sound channel signal respectively, and the audio signal after will amplifying by corresponding connecting line is sent to earphone 1.
Be provided with 6 loudspeaker monomers 2 in the described earphone body 1,3 loudspeaker monomers 2 respectively are set in the left and right earphone.
Left and right earphone mainly is made up of the casing and the lid of concavity, and loudspeaker 2 are arranged in the cavity 11 of the recessed formation of earphone casing.
As shown in Figure 3,2 loudspeaker monomers 2 in described each earphone are respectively main sound channel loudspeaker 21 and mega bass loudspeaker 23, and described main sound channel loudspeaker 21 place earphone cavity 11 internal upper parts, and mega bass loudspeaker 23 place bottom in the earphone cavity 11.
As shown in Figure 4,3 loudspeaker monomers 2 in described each earphone are respectively main sound channel loudspeaker 21, loudspeaker 22 and mega bass loudspeaker 23, described main sound channel loudspeaker 21 and loudspeaker 22 are placed side by side earphone cavity 11 internal upper parts, and mega bass loudspeaker 23 place bottom in the earphone cavity 11.
As shown in Figure 3, Figure 4, the diameter of described main sound channel loudspeaker 21 and loudspeaker 22 is 30 millimeters, and the diameter of mega bass loudspeaker 23 is 40 millimeters.
As shown in Figure 5, audio frequency amplification controller 3 mainly is made up of amplifier and power circuit 34; The power circuit of DC power supply in switch SW 1 offers audio frequency amplification controller 3, power circuit 34 is made up of filter circuit and voltage stabilizing element, power circuit 34 one tunnel outputs provide the operating voltage of operational amplifier, and another road provides the operating voltage of power supply indicator; Left and right sides two-way audio signal is input to the input of operational amplifier 31,32 respectively through input port, the adjustable resistance VR of audio frequency amplification controller, operational amplifier 32 and peripheral cell composition amplifying circuit amplify the signal of importing respectively and merge output by output, the output signal of operational amplifier 31 is coupled to the keynote output port through coupling capacitance C5, C6, operational amplifier 32 output is through capacitor C 9, resistance R 14 input to operational amplifier 33, and operational amplifier 33 amplifies and exports the bass output port to.
As shown in Figure 5, to capacitor C 12 filtering, the anti-high-frequency interferencing signal of C13, light-emitting diode D1 are relay indicating light to the power supply that is provided by battery through SW1.Dual operational amplifier 32 is formed buffers and is also finished R+L and handle the signal that obtains 0.1 channel, and operational amplifier 31,33 promotes loudspeaker SPK, capacitor C 5, the C6 output that is coupled.Sound source signal is imported through CN1, and 3,5 pin that enter amplifier 31 the 6th, 7 pin and dual operational amplifier 32 through R1, R2, R3, R4 dividing potential drop carry out power amplification, eliminates the circuit self-excitation by resistance R 15, R16, R17, R18 and capacitor C 14, C15, C16, C17.Audio signal outputs to socket CN2, CN3 by capacitor C 5, C6 coupling.
The utility model not only satisfies actual requirement, and the more multichannel that faces the future shake the impression of audio around telepresenc and big bottom (Subwoofer).
The utility model to the basic demand of speaker performance be that frequency response is level and smooth, low distortion and possess lower lower frequency limit and increase to two supper bass channel loudspeakers, improving former common headphones virtual with vibrator is the subwoofer disappearance, and this is in order to satisfy the requirement to supper bass of film sound accompaniment and contemporary music.
The direct benefit that the utility model brings can be utilized DOLBY and DTS5.1/6.1 and 7.1 sound channel signals exactly, enjoys the replaying effect of 2.1 sound channels, and can realize that the compatible film of a cover audio system is play and the requirement of Music Appreciation.
Claims (6)
1, a kind of 2.1 sound channel home theater circulating earphones, comprise earphone body (1), audio power amplification controller (3), power supply, it is characterized in that: each is provided with at least 2 loudspeaker monomers (2) in the left and right earphone of described earphone body (1), and the output of audio power amplification controller (3) is connected via wires to earphone body (1).
2,2.1 sound channel home theater circulating earphones according to claim 1 is characterized in that: be provided with 6 loudspeaker monomers (2) in the described earphone body (1), 3 loudspeaker monomers (2) respectively are set in the left and right earphone.
3,2.1 sound channel home theater circulating earphones according to claim 2, it is characterized in that: 2 the loudspeaker monomers (2) in described each earphone are respectively main sound channel loudspeaker (21) and mega bass loudspeaker (23), described main sound channel loudspeaker (21) place earphone cavity (11) internal upper part, and mega bass loudspeaker (23) place the interior bottom of earphone cavity (11).
4,2.1 sound channel home theater circulating earphones according to claim 2, it is characterized in that: 3 the loudspeaker monomers (2) in described each earphone are respectively main sound channel loudspeaker (21), loudspeaker (22) and mega bass loudspeaker (23), described main sound channel loudspeaker (21) and loudspeaker (22) are placed side by side earphone cavity (11) internal upper part, and mega bass loudspeaker (23) place the interior bottom of earphone cavity (11).
5, according to claim 3 or 4 described 2.1 sound channel home theater circulating earphones, it is characterized in that: the diameter of described main sound channel loudspeaker (21) and loudspeaker (22) is 30 millimeters, and the diameter of mega bass loudspeaker (23) is 40 millimeters.
6,2.1 sound channel home theater circulating earphones according to claim 2, it is characterized in that: audio frequency amplification controller (3) mainly is made up of amplifier and power circuit (34); The power circuit (34) of DC power supply in switch SW 1 offers audio frequency amplification controller (3), power circuit (34) is made up of filter circuit and voltage stabilizing element, power circuit (34) one tunnel outputs provide the operating voltage of operational amplifier, and another road provides the operating voltage of power supply indicator; Left and right sides two-way audio signal is input to the input of operational amplifier (31), (32) respectively through input port, the adjustable resistance VR of audio frequency amplification controller (3), operational amplifier (32) and peripheral cell composition amplifying circuit amplify the signal of importing respectively and merge output by output, the output signal of operational amplifier (31) is coupled to the keynote output port through coupling capacitance C5, C6, operational amplifier (32) output is through capacitor C 9, resistance R 14 input to operational amplifier (33), and operational amplifier (33) amplifies and exports the bass output port to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420071001 CN2733796Y (en) | 2004-06-23 | 2004-06-23 | 2.1 track surround sound earphone for home cinema |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420071001 CN2733796Y (en) | 2004-06-23 | 2004-06-23 | 2.1 track surround sound earphone for home cinema |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2733796Y true CN2733796Y (en) | 2005-10-12 |
Family
ID=35069631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420071001 Expired - Fee Related CN2733796Y (en) | 2004-06-23 | 2004-06-23 | 2.1 track surround sound earphone for home cinema |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2733796Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102075833A (en) * | 2011-01-13 | 2011-05-25 | 深圳市泰金田科技有限公司 | Method, circuit and device for realizing 2.1 sound track power amplification by using double-channel circuit |
| US20120140930A1 (en) * | 2010-09-30 | 2012-06-07 | Infeneon Technologies Ag | Method for Driving Loudspeakers |
-
2004
- 2004-06-23 CN CN 200420071001 patent/CN2733796Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120140930A1 (en) * | 2010-09-30 | 2012-06-07 | Infeneon Technologies Ag | Method for Driving Loudspeakers |
| US8917875B2 (en) * | 2010-09-30 | 2014-12-23 | Infineon Technologies Ag | Method for driving loudspeakers |
| CN102075833A (en) * | 2011-01-13 | 2011-05-25 | 深圳市泰金田科技有限公司 | Method, circuit and device for realizing 2.1 sound track power amplification by using double-channel circuit |
| CN102075833B (en) * | 2011-01-13 | 2012-12-26 | 深圳市泰金田科技有限公司 | Method, circuit and device for realizing 2.1 sound track power amplification by using double-channel circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |