CN1242551C - Portable multi-channel amplifier - Google Patents

Portable multi-channel amplifier Download PDF

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Publication number
CN1242551C
CN1242551C CNB018184111A CN01818411A CN1242551C CN 1242551 C CN1242551 C CN 1242551C CN B018184111 A CNB018184111 A CN B018184111A CN 01818411 A CN01818411 A CN 01818411A CN 1242551 C CN1242551 C CN 1242551C
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CN
China
Prior art keywords
channel
portable multi
main body
channel amplifier
coupling part
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Expired - Fee Related
Application number
CNB018184111A
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Chinese (zh)
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CN1473451A (en
Inventor
金诚一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MM Gear Co Ltd
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MM Gear Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020000065391A external-priority patent/KR20010008044A/en
Application filed by MM Gear Co Ltd filed Critical MM Gear Co Ltd
Publication of CN1473451A publication Critical patent/CN1473451A/en
Application granted granted Critical
Publication of CN1242551C publication Critical patent/CN1242551C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Stereophonic System (AREA)
  • Amplifiers (AREA)

Abstract

A portable multi-channel amplifier is provided. The portable multi-channel amplifier includes an input/output adapter and a body. The input/output adapter includes a plurality of cable connectors for connecting an external audio system for reproducing an audio signal, a device for outputting an audio signal as sound via cables, and a circuit connector for connecting the cable connectors to an external circuit. The body includes a connection portion into which the circuit connector of the input/output adapter is inserted and which can be detached from the circuit connector, and a processing circuit for processing the audio signal, which is input from the external audio system through the connection portion, as a multi-channel signal and outputting the multi-channel signal to the outside through the connection portion. A user that carries the portable multi-channel amplifier, which is connected to a portable audio system, can listen to surround stereophonic sound anywhere. Also, in the portable multi-channel amplifier, the body of the portable multi-channel amplifier can be detached from the input/output adapter. Thus, the portable multi-channel amplifier can be conveniently kept and used for many purposes using a docking station at home.

Description

Portable multi-channel amplifier
Technical field
The present invention relates to a kind of amplifier, and design a kind of portable multi-channel amplifier especially.
Background technology
Amplifier is divided into separate amplifier, integrated amplifier and receiver.Separate amplifier comprises and is used for voice emplifying and gives the power amplifier of loud speaker with transfer voice and be used to select the preamplifier of sound source.The amplifier that on behalf of power amplifier, integrated amplifier combine with preamplifier.The receiver representative has the integrated amplifier of tuner.
Preamplifier is called as control amplifier, and it will amplify from the weak signal that the pickup of loudspeaker or phonograph is exported, and perhaps receive and control by tuner, cassette tape unit, highly dense magnetic disc player, the perhaps signal of digital audio tape recorder output, and this signal is transferred to power amplifier.
Recently the amplifier of announcing can produce a kind of sound field (sound stage) effect to realize beautiful real sound.
The sound field of amplifier can be called as special sound and echo.Sound is divided into directly from the sound of musical instrument or loud speaker and the sound that is reflected by other object around being scattered in.
Determine that echo is whether graceful, promptly determine the good of a sound field and badly depend on the direction of hearing the sound that is reflected that the material of reflect sound is perhaps compared the degree that slows down of the transmission of reflect sound with direct voice.
Usually, music hall or arenas are designed to be and are suitable for out concert or show a film.Therefore, unless extremely special situation, their sound field generally can be not poor.
Yet residence space is for music or film design, even if therefore for residence space good sound system has been installed, their sound field is still undesirable usually.
Specifically, the size in living room is very important concerning sound field.In this case, can use digital signal processor to realize a good sound field.
Recently, developed portable amplifier with sound field effect and the headphone that is used to listen to the multi-channel audio signal that is produced, this portable amplifier is to use digital signal processor to realize.
Summary of the invention
For addressing the above problem, an object of the present invention is to provide a kind of portable multi-channel amplifier, it has the input and output terminal of separation and can utilize loud speaker to use at home so that carry expediently also.
Therefore, provide a kind of portable multi-channel amplifier to realize above-mentioned purpose.A kind of portable multi-channel amplifier comprises:
Input/output adapter, this input/output adapter comprises: a plurality of cable connectors are used to connect an external audio system that is used for reproducing audio signal; One is audio signal output the device of sound by cable; With a circuit connector that is used for cable connector is connected to the external circuit outside this input/output adapter; And
Main body, this main body comprises: a coupling part, be inserted with the circuit connector of this input/output adapter in this coupling part, and it can separate with circuit connector; With a treatment circuit, being used for the Audio Signal Processing of being imported by the coupling part by external audio system is multi channel signals, and this multi channel signals is outputed to this circuit connector by the coupling part.
Main body comprises: a digital signal processor, be used for received audio signal and audio signal converted to have Dolby Pro-logic, and THX, AC-3, or the solid of DTS form is around sound; With a D/A converter, be used for converting the digital signal of digital signal processor output to analog signal.
Digital signal processor further comprises Dolby Pro-Logic II function, this function with 2 channel stereo and 4 channel stereo pro-Logic around converting 5.1 passage surround sounds to.
Digital signal processor further comprises an Environmental Audio Extension (EAX) function, it is API and is used for making sound effect true to nature in recreation by the game developer, and when in recreation, being configured with cave, water channel, hall etc., for simple sound effect calls API and relevant parameter is set.
According to a further aspect of the present invention, a kind of portable multi-channel amplifier comprises:
A spread footing (docking station), this spread footing comprises: one connects support section; With a plurality of cable connector parts, this cable connector part directly be connected the support section connection so that be connected with a speaker system with external audio system by cable; With
Main body, this main body comprises: a coupling part is inserted in this connection support section; With a treatment circuit, be the Audio Signal Processing of importing by the coupling part by external audio system multi channel signals, and this multi channel signals is outputed to the connection support section by the coupling part;
Wherein this main body is installed on this spread footing and by this spread footing and supports.
This spread footing further comprises a power amplifier, is used to amplify by the signal that is installed in the main body output on the spread footing and with this signal export by cable connector.
This spread footing further comprises a voltage generator, and being used for provides voltage by the coupling part of this main body to main body.
This spread footing comprises a charging device, is used for replenishing the voltage that is provided by the voltage generator.
The voltage generator uses DC-in that power supply is provided.
The voltage generator is used USB port power supply is provided.
Description of drawings
Fig. 1 is the perspective view according to the portable multi-channel amplifier of the first embodiment of the present invention;
Fig. 2 is the perspective view of portable multi-channel amplifier according to a second embodiment of the present invention;
Fig. 3 is the block diagram according to the body interior structure of portable multi-channel amplifier of the present invention; And
Fig. 4 is the perspective view that is configured in the main body of the portable multi-channel amplifier on the spread footing.
Embodiment
Below, will be described in detail with reference to the attached drawings the present invention.
Fig. 1 is the perspective view according to the portable multi-channel amplifier of the first embodiment of the present invention.This portable multi-channel amplifier comprises a main body 110 and an input/output adapter 120.
Main body 110 will be amplified by the weak signal that the pickup of loudspeaker or phonograph is exported, and perhaps receive various audio signals and output multi channel signals by tuner, cassette tape unit, highly dense magnetic disc player or digital audio tape recorder output.This main body 110 is fabricated on the both sides of the substrate that uses digital signal processor (DSP) technology, and battery 130 is wherein arranged.
This main body 110 comprises a coupling part 113 and a treatment circuit (not shown).The circuit connector 123 of this input/output adapter 120 inserts in this coupling part 113.Coupling part 113 can be separated with this connector 123 (133).Processing circuit processes is imported external audio system by coupling part 113 Audio Signal Processing is a multi channel signals, and this multi channel signals is exported to the outside by coupling part 113.
Comprise a plurality of input terminal D and A and a plurality of lead-out terminal F and R with the input/output adapter 120 of these main body 110 couplings.This input terminal D and A receive the weak signal by the pickup output of loudspeaker or phonograph, perhaps receive the signal by tuner, cassette tape unit, highly dense magnetic disc player or digital audio tape recorder output.This lead-out terminal F and R are with the signal output that is received.
This input/output adapter 120 comprises a plurality of cable connectors (that is, input/output terminal D, A, F and R) and circuit connector 123.This cable connector D, A, F is connected with cable respectively with R.This circuit connector 123 is connected this cable connector with an external circuit.
Fig. 2 is the perspective view of portable multi-channel amplifier according to a second embodiment of the present invention.With reference to figure 2, the input/output terminal D of input/output adapter 130, A, F and R have the shape of rectangle so that reduce the size of this input/output adapter 130.
Fig. 3 is the block diagram according to the internal structure of the main body of multi-channel amplifier of the present invention.This main body is made up of 220, one digital signal processors 230 of optics 210, one analogs to digital of pocket plug-in and pull-off device Toslink (A/D) transducer and a digital to analogy (D/A) transducer 240.
Toslink 210 receiving digital signals and give digital signal processor 230 with digital data transmission.
This A/D converter 220 becomes analog signal conversion digital signal and gives digital signal processor 230 with this digital data transmission.
This digital signal processor 230 receives the digital signal by Toslink 210 and 220 outputs of this A/D converter, and converts this digital signal to surrounding sound, EAX for example, DolbyPro-Logic, Dolby Pro-LogicII, THX, AC-3, DS, DD, the sound of forms such as DTS.
Environmental Audio Extension (EAX) is application programming interfaces (API), and it is used to make sound effect true to nature in the recreation by the game developer.Be configured with the cave in recreation, water channel is during hall etc., for sound effect calls API and relevant parameter is set.
In the recreation of supporting EAX, use EAX API can handle sound effect more true to nature.If EAX is not supported in recreation, recreation uses EAX default to use EAX indirectly so.
Dolby Pro-Logic is the surround sound form, and it is widely distributed now, and video equipment is seen everywhere from general arenas is got home.Dolby Pro-Logic form has four signalling channel: L, C, R, and surround sound.Because Dolby Pro-Logic and common stereophonic sound system compatibility, but so DolbyPro-Logic can be applicable to the reproduction of stereo sound medium.
Dolby Pro-LogicII is 5 new passage ambiophonic systems, and it converts 2 channel stereo and 4 passage Pro-logic surround sounds to 5.1 passage surround sounds.Dolby Pro-LogicII has film mode that is used for movie and the music pattern that is used for playing back music.
This film mode is used to have VHS and the DVD video of Dolby around loudspeaker and appointment television.This music pattern is used for music CD and other stereo source.
Dolby Digital (DD) record digital audio is so that reproduce high-quality surround sound.This DD form can write down 5.1 channel sound with low pass sound effect respectively, and the 20Hz-20KHz of full range band is divided into 5.1 passages and stored sound, and is 5.1 channel sound and stored sound with the surround sound cent of 2 passages.In addition, this DD reproduce with cinema in identical dynamic range and the same sound field significantly that in new-type cinema, occurs.
Digital Theater System (DTS) is to reproduce digital rings around the up-to-date mode of sound and have 5.1 passages of similar DD.But, because the DTS form has low sound compression ratio, so the DTS form can reproduce the sound of the signal to noise ratio (S/N) with high sensitivity.DTS has wide dynamic range and good channel separation degree, and what small sound and grand sound all can be showed is fine.
Because DD is the reference format that is used for the DVD video, so all DVD player is all supported DD.Yet, because DTS is not the reference format that is used for the DVD video, so only some DVD player or special-purpose DTS decoding amplifier can be supported this DTS.
Significant difference between DD and the DTS is that voice data can compressed degree.DD has the compression ratio higher than DTS.Higher compression ratio means the infringement of acoustic source bigger.DD has the transfer rate of about per second 380kb, and DTS has the transfer rate of about per second 1.4Mb.In other words, the much about three times data of DTS transfer ratio DD are with the sound of reproduction with the DD assonance.
THX is not the special audio format standard of a kind of similar DD and DTS.The THX that is made by Lucas Film is a kind of Verification System that is applied to sound device, vision facilities and sound source.THX can be applied to Dolby Pro-Logic, Dolby Digital, and DTS.The DVD qualification may need the authentication of THX.The product that obtains the THX authentication can win the user to a certain extent to the good tonequality of its product and the trust of picture quality.
This D/A converter 240 will convert analog signal to by the digital signal of digital signal processor 230 outputs.
Therefore, main body 110 produce the stereophonic field effects to realize grace real audio sound.
Fig. 4 is the perspective view that is configured in the main body 110 of the portable multi-channel amplifier on the spread footing 300.An external audio system can be connected with spread footing 300 by cable with a speaker system.
This spread footing 300 comprises that one connects support section 310 and a plurality of cable connector.The coupling part 113 of this main body 110 is inserted and is connected in the support section 310, so that a circuit is connected to connection support section 310 and supportive body 110.A plurality of cable connectors directly be connected support section 310 connections so that be connected with a speaker system with an external audio system by cable.
In addition, this spread footing 300 comprises a power amplifier (not shown), a voltage supply device (not shown) and a charging device (not shown).Power amplifier will be amplified by the signal of main body 110 outputs and export this signal by cable connector.Voltage supply device provides voltage for this main body 110 by the coupling part of main body 110.The voltage that is provided by this voltage supply device is provided charging device.At this, can use DC-in and USB port that power supply is provided.
Though the present invention describes by the embodiment shown in the reference diagram, accompanying drawing only is used for the diagram purpose.Scope of the present invention can not be understood that to be limited in embodiment.Therefore, it is evident that for those skilled in the art: under the situation that does not depart from the spirit and scope of the invention, can make amendment described embodiment.Therefore the real technical protection scope of the present invention is based on that the technical spirit of claims determines.
According to the present invention, the user who carries the portable multi-channel amplifier that is connected with portable audio system can listen to anywhere around stereo system sound.In addition, in portable multi-channel amplifier, the main body of this portable multi-channel amplifier can be separated with input/output adapter.Therefore this portable multi-channel amplifier can carry and easily by using spread footing to be applied to multiple purpose at home.

Claims (10)

1. portable multi-channel amplifier comprises:
Input/output adapter, this input/output adapter comprises: a plurality of cable connectors are used to connect an external audio system that is used for reproducing audio signal; One is audio signal output the device of sound by cable; With a circuit connector that is used for cable connector is connected to the external circuit outside this input/output adapter; And
Main body, this main body comprises: a coupling part, be inserted with the circuit connector of this input/output adapter in this coupling part, and it can separate with circuit connector; With a treatment circuit, being used for the Audio Signal Processing of being imported by the coupling part by external audio system is multi channel signals, and this multi channel signals is outputed to this circuit connector by the coupling part.
2. portable multi-channel amplifier according to claim 1 is characterized in that this main body comprises:
Digital signal processor is used for received audio signal and audio signal is converted to have Dolby Pro-Logic, THX, AC-3, or the surrounding sound of DTS form; And
D/A converter is used for converting the digital signal by digital signal processor output to analog signal.
3. portable multi-channel amplifier according to claim 2, it is characterized in that this digital signal processor further has Dolby Pro-LogicII function, it with 2 channel stereo and 4 channel stereo pro-logic around converting 5.1 passage surround sounds to.
4. portable multi-channel amplifier according to claim 2, it is characterized in that this digital signal processor further has Environmental Audio Extension (EAX) function, it is API and is applied in the recreation to make sound effect true to nature by the game developer, and in recreation, be configured with the cave, water channel, during hall etc., for simple sound effect calls API and relevant parameter is set.
5. portable multi-channel amplifier comprises:
A spread footing, this spread footing comprises: one connects support section; With a plurality of cable connector parts, this cable connector part directly be connected the support section connection so that be connected with a speaker system with external audio system by cable; With
Main body, this main body comprises: a coupling part is inserted in this connection support section; With a treatment circuit, be the Audio Signal Processing of importing by the coupling part by external audio system multi channel signals, and this multi channel signals is outputed to the connection support section by the coupling part;
Wherein this main body is installed on this spread footing and by this spread footing and supports.
6. portable multi-channel amplifier according to claim 5 is characterized in that this spread footing further comprises power amplifier, is used to amplify the signal by being installed in the main body output on the spread footing, and this signal is exported by cable connector.
7. portable multi-channel amplifier according to claim 6 is characterized in that this spread footing further comprises provides voltage to this main body by the coupling part of this main body voltage supply device.
8. portable multi-channel amplifier according to claim 7 is characterized in that this spread footing comprises charging device, is used for replenishing the voltage that this voltage supply device is provided.
9. portable multi-channel amplifier according to claim 8 is characterized in that this voltage supply device uses DC-in that power supply is provided.
10. portable multi-channel amplifier according to claim 8 is characterized in that this voltage supply device uses USB port that power supply is provided.
CNB018184111A 2000-11-04 2001-11-01 Portable multi-channel amplifier Expired - Fee Related CN1242551C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
KR1020000065391A KR20010008044A (en) 2000-11-04 2000-11-04 Portable multi-channel amplifier
KR65391/2000 2000-11-04
KR57570/2001 2001-09-18
KR10-2001-0057570A KR100425906B1 (en) 2000-11-04 2001-09-18 Portable multi-channel amplifier
PCT/KR2001/001849 WO2002037896A1 (en) 2000-11-04 2001-11-01 Portable multi-channel amplifier

Publications (2)

Publication Number Publication Date
CN1473451A CN1473451A (en) 2004-02-04
CN1242551C true CN1242551C (en) 2006-02-15

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CNB018184111A Expired - Fee Related CN1242551C (en) 2000-11-04 2001-11-01 Portable multi-channel amplifier

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EP (1) EP1332644A1 (en)
JP (1) JP2004513583A (en)
KR (1) KR100425906B1 (en)
CN (1) CN1242551C (en)
AU (1) AU2002214355A1 (en)
WO (1) WO2002037896A1 (en)

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KR100442416B1 (en) * 2001-12-03 2004-07-30 주식회사 이트로닉스 Extended Serial Peripheral Interface
KR100471082B1 (en) * 2002-11-26 2005-03-10 삼성전자주식회사 Docking station for a portable computer
US8918546B2 (en) 2004-08-27 2014-12-23 Thomson Licensing Apparatus and method for enabling digital and analog data communication over a data bus
JP2008159180A (en) * 2006-12-25 2008-07-10 Sony Corp Content selecting and reproducing system, its method and portable reproducing machine controller
CN102944755B (en) * 2012-11-06 2018-08-17 西安开容电子技术有限责任公司 A kind of chargeable portable signal amplifier used
CN105979467A (en) * 2016-04-29 2016-09-28 乐视控股（北京）有限公司 Method and device for integrating multiple audio signal post-processing algorithms in Qualcomm platform
CN113054935A (en) * 2021-03-19 2021-06-29 广州佐峰电子科技有限公司 Card-inserting type charge amplifier capable of being combined and expanded at will

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Publication number Priority date Publication date Assignee Title
JPS5449012A (en) * 1977-09-27 1979-04-18 Nec Corp Multichannel receiver
JPS59175084A (en) * 1983-03-24 1984-10-03 Matsushita Electric Ind Co Ltd Level display device of digital sound recording and reproducing device
JP2956125B2 (en) * 1990-05-09 1999-10-04 ソニー株式会社 Sound source information control device
US5138280A (en) * 1991-12-05 1992-08-11 Ford Motor Company Multichannel amplifier with gain matching
JPH0662490A (en) * 1992-08-05 1994-03-04 Mitsubishi Electric Corp Multichannel audio reproducing device
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KR200196901Y1 (en) * 1998-06-23 2000-10-02 양웅섭 Videocher for separation and join

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Publication number Publication date
AU2002214355A1 (en) 2002-05-15
JP2004513583A (en) 2004-04-30
EP1332644A1 (en) 2003-08-06
KR100425906B1 (en) 2004-04-03
CN1473451A (en) 2004-02-04
KR20010100085A (en) 2001-11-14
WO2002037896A1 (en) 2002-05-10

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