CN1486120A - 5.1声道数码环绕耳机 - Google Patents

5.1声道数码环绕耳机 Download PDF

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Publication number
CN1486120A
CN1486120A CNA021348375A CN02134837A CN1486120A CN 1486120 A CN1486120 A CN 1486120A CN A021348375 A CNA021348375 A CN A021348375A CN 02134837 A CN02134837 A CN 02134837A CN 1486120 A CN1486120 A CN 1486120A
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sound channel
power
control machine
line control
amplifying circuit
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颜聪裕
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Priority to CNA021348375A priority Critical patent/CN1486120A/zh
Priority to JP2004538651A priority patent/JP2006503456A/ja
Priority to AU2003299060A priority patent/AU2003299060A1/en
Priority to KR1020057004934A priority patent/KR20050074952A/ko
Priority to DE10393380T priority patent/DE10393380T5/de
Priority to PCT/CN2003/000581 priority patent/WO2004030404A1/zh
Priority to US10/529,061 priority patent/US20060013418A1/en
Publication of CN1486120A publication Critical patent/CN1486120A/zh
Pending legal-status Critical Current

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    • 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
    • H04R5/033—Headphones for stereophonic communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
    • H04S3/004—For headphones
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
    • 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
    • H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2205/00—Details of stereophonic arrangements covered by H04R5/00 but not provided for in any of its subgroups
    • H04R2205/022—Plurality of transducers corresponding to a plurality of sound channels in each earpiece of headphones or in a single enclosure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/01—Input selection or mixing for amplifiers or loudspeakers

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

本发明涉及电子产品技术领域，特指一种5.1声道数码环绕耳机。其包括有耳机本体及线控器，耳机本体与线控器之间有导线连接，线控器的输入端与一功放盒连接，该功放盒包括有电源输入单元、稳压滤波电路、放大电路及5.1声道信号输入端口，外电源通过电源输入单元输入到稳压滤波电路，放大电路由稳压滤波电路的输出电供电，放大电路的输入端与5.1声道信号输入端口连接，而放大电路的输出端与线控器连接。本发明通过功放盒的功率放大及滤波，提高信噪比，降低失真率，可实现良好的重放效果，高中音表现充分，而中低音听感舒适，具有良好的数码环绕效果，同时耳机采用开放式耳壳设计，声音清晰，佩戴舒适，使用时不会影响他人。

Description

5.1声道数码环绕耳机
技术领域：
本发明涉及电子产品技术领域，特指一种5.1声道数码环绕耳机。
背景技术：
随着电子技术的不断发展，人们对音响效果的要求越来越高，音频装置也从单声、立体声到杜比逻辑定向系统发展到数码环绕型。如今DVD经过几年的发展历程，由于其光盘容量更大，图像清晰，且音响真实功能更多，使用方便等优点，其普及率也随之越来越高。通常用DVD欣赏电影时，为达到最佳的家庭影院效果，需配备5.1声道功放机，再连接六个与之匹配的音箱，而安放六个音箱极大占用空间，且连接线较多，极不方便，同时使用过程音量较大，会影响他人休息。
发明内容：
本发明的目的在于提供一种具有数码环绕效果，便于携带使用的5.1声道数码环绕耳机。
本发明是通过如下技术方案实现的：连接耳机本体的线控器之输入端与一功放盒连接，该功放盒包括有电源输入单元、稳压滤波电路、放大电路及5.1声道信号输入端口，外电源通过电源输入单元输入到稳压滤波电路，放大电路由稳压滤波电路的输出电供电，放大电路的输入端与5.1声道信号输入端口连接，而放大电路的输出端与线控器连接，放大电路中之用于功率放大的IC集成块还连接有音频旁路电容及耦合电容；所述功放盒上还设有用于直接连接其它相应功放机的5.1声道信号输出端口，该功放盒之放大电路的输出端设置有7针插座，对应线控器的连接端采用7针插头与之匹配；所述线控器上设有CD与DVD之间的转换开关及音量电位器。
本发明通过功放盒的功率放大及滤波，提高信噪比，降低失真率，可实现良好的重放效果，高中音表现充分，而中低音听感舒适，具有良好的数码环绕效果，同时耳机采用开放式耳殼设计，声音清晰，配戴舒适，使用时不会影响他人。
附图说明：
附图1为本发明的原理方框图；
附图2为本发明的结构示意图；
附图3为本发明的实施例具体电路图。
具体实施方式：
见附图1～3，本发明包括有耳机本体1及线控器2，耳机本体1与线控器2之间有导线连接。线控器2的输入端与一功放盒3连接，功放盒3包括有电源输入单元31、稳压滤波电路32、放大电路33、5.1声道信号输入端口34及用于直接连接其它相应功放机的5.1声道信号输出端口35。外电源通过电源输入单元31输入到稳压滤波电路32，放大电路33由稳压滤波电路32的输出电供电，放大电路33中之用于功率放大的IC集成块连接有音频旁路电容及耦合电容；放大电路33的输入端与5.1声道信号输入端口34连接，而放大电路33的输出端与线控器2连接，放大电路33的输出端设置有7针插座，对应线控器2的连接端采用7针插头与之匹配，线控器2上设有CD与DVD之间的转换开关21及音量电位器。
使用时，通过导线将功放盒3与7.5VDC的外电源连接，由XSIDC电源插座输入，经电源开关控制后由电解电容C32滤波，瓷片电容C31滤除高频及干扰信号，通过稳压滤波电路32之IC4稳压后外电源调整为5V稳定直流电。稳压后的电源再经过电解电容C29与瓷片电容C30并联组成的滤波电路，同时充电储存能量，一路电源经电阻R19降压限流经LED发光作电源指示灯；另一路电源给IC1、IC2、IC3同时供电使之正常工作，IC1、IC2、IC3电源正极2脚与电源地4脚分别并联于涤纶电容C21、C24、C27，以此消除电源线路感应的干扰信号，也为放大电路33提供高频回路，保证IC1、IC2、IC3免受各种干扰而稳定工作。经过解码后输出的六路5.1声道音频信号(FL、FR、RL、RR、C、SUB)从功放盒3之5.1声道信号输入端口34的CZ1、CZ2、CZ3插座输入，先由C1～C6电容分别对六路引线感应及干扰信号滤除到地，再由电阻R1～R12串联分压后，从IC1～IC3的6、7脚输入，IC1～IC3的5、8脚分别连接有音频旁路电容C7～C12，使音频信号在放大过程能畅通无阻。经IC1～IC3功率放大后，分别  IC1～IC3的1、3脚输出，经分别由电阻R13～R18和电容C20、C22、C23、C25、C26、C28串联组成的高频校正网络消除自激信号，将音频信号由电解电容C14～C19耦合输出到7针插座(CZ-1～CZ-7)上。与线控器2连接的7针插头(CT1～CT7)插接7针插座(CZ-1～CZ-7)后将六路5.1声道信号经线控器2上的三个双联电位器VR1～VR3分别对FL、FR、RL、RR、C进行音量控制后，推动喇叭SP1～SP6发出相应的声音。其中中置声道由左、右耳壳内的喇叭(SP5、SP6)共同完成放音，超重低音(SUB)由左、右耳壳上的振动器(SP7、SP8)串联来重放，从而产生超重低音效果，为了消除振动杂音，在SUB功放输入端并联电解电容C13进一步旁路除去中高频信号，保留低频信号进入放大器。
本发明之线控器2上设有音量电位器VR1～VR3及CD、DVD转换开关SW1，使欣赏CD或DVD能达到最佳音频效果，同时功放盒3上还设有用于直接连接其它相应功放机的5.1声道信号输出端口35(CZ4～CZ6)，以至可从音箱放出，供更多的人同时欣赏；而且耳机本体1上的话筒可接收声音直接输入到DVD播放机实现讲话、唱歌。
本发明实施例所用主要元、器件明细表如下：
元、器件符号           元、器件名称         型号、规格
IC1～IC3                 集成电路            TDA2822
IC4                      集成电路             7805
C1～C6                   涤纶电容             472
C7～C12                电解电容             47UF 16V
C20、C22、C23          电容                 104
C25、C26、C28          电容                 104
C21、C24、C27          涤纶电容             104
C29、C32               电解电容             1000UF 16V
C30、C31               瓷片电容             104
R1～R5                 电阻                 10K
R6                     电阻                 4K7
R7～R10                电阻                 1K
R11                    电阻                 820
R12                    电阻                 8K2
R13～R18               电阻                 2R2
R19                    电阻                 1K
VR1～VR3               可变电阻             1K
C13                    电解电容             3.3UF 16V
C14～C18               电解电容             220UF 16V
C19                    电解电容             470UF 16V

Claims (5)

1、5.1声道数码环绕耳机，包括有耳机本体(1)及线控器(2)，耳机本体(1)与线控器(2)之输出端有导线连接，其特征在于：线控器(2)的输入端与一功放盒(3)连接，该功放盒(3)包括有电源输入单元(31)、稳压滤波电路(32)、放大电路(33)及5.1声道信号输入端(34)，外电源通过电源输入单元(31)输入到稳压滤波电路(32)，放大电路(33)由稳压滤波电路(32)的输出电供电，放大电路(33)的输入端与5.1声道信号输入端口(34)连接，而放大电路(33)的输出端与线控器(2)连接。
2、根据权利要求1所述的5.1声道数码环绕耳机，其特征在于：所述功放盒(3)上还设有用于直接连接其它相应功放机的5.1声道信号输出端口(35)。
3、根据权利要求1所述的5.1声道数码环绕耳机，其特征在于：所述功放盒(3)之放大电路(33)的输出端设置有7针插座，对应线控器(2)的连接端采用7针插头与之匹配。
4、根据权利要求1所述的5.1声道数码环绕耳机，其特征在于：所述放大电路(33)中之用于功率放大的IC集成块还连接有音频旁路电容及耦合电容。
5、根据权利要求1所述的5.1声道数码环绕耳机，其特征在于：所述线控器(2)上设有CD与DVD之间的转换开关(21)及用于控制耳机音量的电位器。
CNA021348375A 2002-09-27 2002-09-27 5.1声道数码环绕耳机 Pending CN1486120A (zh)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CNA021348375A CN1486120A (zh) 2002-09-27 2002-09-27 5.1声道数码环绕耳机
JP2004538651A JP2006503456A (ja) 2002-09-27 2003-07-21 ５．１チャネルデジタルサラウンド・ヘッドホーン
AU2003299060A AU2003299060A1 (en) 2002-09-27 2003-07-21 5.1channel digital surround earphone
KR1020057004934A KR20050074952A (ko) 2002-09-27 2003-07-21 5.1 사운드 채널 디지털 서라운드 이어폰
DE10393380T DE10393380T5 (de) 2002-09-27 2003-07-21 5.1-Tonkanal-Digital-Raumklang-Kopfhörer
PCT/CN2003/000581 WO2004030404A1 (fr) 2002-09-27 2003-07-21 Ecouteur d'ambiance numerique a canal 5.1
US10/529,061 US20060013418A1 (en) 2002-09-27 2003-07-21 5.1 channel digital surround earphone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA021348375A CN1486120A (zh) 2002-09-27 2002-09-27 5.1声道数码环绕耳机

Publications (1)

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CN1486120A true CN1486120A (zh) 2004-03-31

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CNA021348375A Pending CN1486120A (zh) 2002-09-27 2002-09-27 5.1声道数码环绕耳机

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US (1) US20060013418A1 (zh)
JP (1) JP2006503456A (zh)
KR (1) KR20050074952A (zh)
CN (1) CN1486120A (zh)
AU (1) AU2003299060A1 (zh)
DE (1) DE10393380T5 (zh)
WO (1) WO2004030404A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006108335A1 (fr) * 2005-04-14 2006-10-19 Congyu Yan Écouteur pour son surround 7.1 canaux

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AU2003299060A1 (en) 2004-04-19
WO2004030404A1 (fr) 2004-04-08
JP2006503456A (ja) 2006-01-26
KR20050074952A (ko) 2005-07-19
DE10393380T5 (de) 2006-03-09
US20060013418A1 (en) 2006-01-19

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