CN1822712A - Digital decoding 5.1 sound track circulating sound system earphone - Google Patents
Digital decoding 5.1 sound track circulating sound system earphone Download PDFInfo
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- CN1822712A CN1822712A CN 200510120737 CN200510120737A CN1822712A CN 1822712 A CN1822712 A CN 1822712A CN 200510120737 CN200510120737 CN 200510120737 CN 200510120737 A CN200510120737 A CN 200510120737A CN 1822712 A CN1822712 A CN 1822712A
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/01—Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
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- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Stereophonic System (AREA)
- Headphones And Earphones (AREA)
Abstract
Present invention relates to digit decoding sound track surround sound system earphone. It contains earphone, external power supply plug, and digit decoding power amplifying box accessed between earphone and external power supply plug, said digit decoding power amplifying box power amplifying box having power supply input part, signal input part, decoding part, signal output part and control part, capable of realizing coaxial, optical fiber, and stereo inputting, signal output part containing 5.1 sound track line output, 5.1 sound track power amplification, 5.1 sound track power amplifying outputting, sound track and electronic switch converting. Said invention integrates digital signal decoding and 5.1 sound track power amplifying with sounds accurately positioning, rich gradation, small distortion, and fine sonic balance ability and surround sound effect.
Description
Technical field:
The present invention relates to technical field of electronic products, refer in particular to a kind of digital decoding 5.1 sound channel ambiophonic system earphones.
Background technology:
Along with the continuous development of electronic technology, people are more and more higher to acoustic requirement, audio devices also from monophone, stereo to the system development of Doby logical orientation to the digital circulating type.Nowadays DVD is through in a few years development course, because its CD capacity is bigger, and clear picture, and advantage such as the sound equipment truth function is more, and is easy to use, its popularity rate is also more and more higher thereupon.When appreciating film with DVD usually,, need to be equipped with 5.1 sound channel power amplifiers for reaching best home theater effect, connect six audio amplifiers that match again, greatly take up room and lay six audio amplifiers, and connecting line is more, extremely inconvenient, the volume of use simultaneously is bigger, can influence other people and have a rest.To this, the user expect a kind of collect sound field location, sound source distance, channel separation and sound move etc. have multichannel, the effective digital decoding that can be used for DVD, PS2, X-BOX 5.1 sound channel ambiophonic system earphones in time come out.
Summary of the invention:
The object of the present invention is to provide a kind of set digital signal decoding and 5.1 sound channel power amplifiers, the support hardware decoding, no matter optical fiber/coaxial numeral or analog signal input, can realize that all 5.1 sound channels export around audio, and 5.1 sound channel earphones and 5.1 sound channel circuit output interfaces are arranged, can connect 5.1 sound channel earphones and 5.1 channel amplifiers (audio amplifier) simultaneously, can be used for the digital decoding 5.1 sound channel ambiophonic system earphones of audio signal digit output interfaces such as DVD, PS2, X-BOX.
For achieving the above object, the present invention includes earphone body, external power supply plug, and between earphone body and external power supply plug, insert a digital decoding power amplifier box, the three is connected by lead, be provided with power input part branch, stimulus part, decoded portion, segment signal output and control section in described digital decoding power amplifier box, wherein stimulus part contains digital coaxial signal input, the input of digital fiber-optic signal and the input of stereo analog signal; Segment signal output contains the output of 5.1 sound channel circuits, 5.1 sound channel power amplifications, the output of 5.1 sound channel power amplifiers, 5.1 sound channel earphones and electronic switch conversion, and decoded 5.1 sound channel circuits output connects preposition sound channel socket, rearmounted sound channel socket, center channel and supper bass sound channel socket.
Also be provided with remote control part and display part in the described digital decoding power amplifier box, remote control partly includes a remote control and receives head, carries out the global function controlled in wireless by infrared remote controller, and signal type shows and mode of operation shows and the display part comprises.
Described decoded portion comprises digital/analog signal conversion, analog/digital signal conversion, volume control, and computing is amplified, program storage, and Digital Signal Processing, central processing unit, data storage, 5.1 sound channel computings are amplified, shift register.
Described control section comprises input signal control, the control of 5.1 channel volumes, output signal control and power supply control.
The front panel of digital decoding power amplifier box is provided with mains switch, 5.1 channel volume control knobs, input signal control knob, 5.1 sound channel earphone sockets, output signal control switch, remote control receives head and signal type shows indicator light, mode of operation display.
The power interface that preposition sound channel socket, rearmounted sound channel socket, center channel and supper bass sound channel socket, digital coaxial signal input interface, digital fiber-optic signal input interface and stereo analog input interface is set on the rear board of digital decoding power amplifier box and is connected with external power supply plug.5.1 the sound channel earphone socket has two, can connect two earphones simultaneously.
The present invention gathers digital signal decoding and 5.1 sound channel power amplifiers, the support hardware decoding, no matter optical fiber/coaxial numeral or analog signal input, can realize that all 5.1 sound channels export around audio, and 5.1 sound channel earphones and 5.1 sound channel circuit output interfaces are arranged, can connect 5.1 sound channel earphones and 5.1 channel amplifiers (audio amplifier) simultaneously; Cooperate 5.1 sound channel earphones, sound localization is accurate, levels are rich, alt is bright and not hot-tempered and distortion is very little, the voice reduction is true, can reduce audio in recreation and the DVD video disc truly, 24 super-resolution degree films, music, gaming platform, the balance of sound, the degree of depth of sound field and respond well around sound effect and supper bass, can well be located sense and wide dark sound field, can be heard at most, the most direct, details the most clearly.
Another advantage of the present invention is to use highly integrated surround sound codec chip, device is supported 192kHz, make the user can enjoy dynamic range and multichannel performance that the DVD-Audio standard improves, complete compatible EIAJ CPI1201, IEC60958, SPDIF and AES3 standard.
Further advantage of the present invention is structural strong, carries, uses all very convenient.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present invention;
Accompanying drawing 2 is the functional-block diagram of digital decoding power amplifier box;
Accompanying drawing 4 is the rear panel structure schematic diagram of digital decoding power amplifier box;
Accompanying drawing 5 is the circuit diagram of one preferred embodiment of the present invention.
Embodiment:
The present invention will be further described below in conjunction with accompanying drawing:
Shown in Figure 1, the present invention includes 5.1 sound channel earphone bodies 10, external power supply plug 20, and between earphone body 10 and external power supply plug 20, insert a digital decoding power amplifier box 30, wherein be connected by lead between 5.1 sound channel earphone bodies 10 and the digital decoding power amplifier box 30; The power input of digital decoding power amplifier box 30 is connected with external power supply plug 20 by power interface 47.
Shown in Figure 2, be provided with in digital decoding power amplifier box 30 that power input part divides 31, stimulus part 32, decoded portion 33, segment signal output 34, control section 35, remote control part 36 and display part 37, wherein stimulus part 32 contains digital coaxial signal input 321, the input 322 of digital fiber-optic signal and stereo analog signal input 323; Segment signal output 34 contains 5.1 sound channel circuits output, 341,5.1 sound channel power amplifications, 342,5.1 sound channel power amplifiers output 343,5.1 sound channel earphones 344 and electronic switch conversion 345, decoded 5.1 sound channel circuits output 341 connects preposition sound channel socket 41, rearmounted sound channel socket 42, center channel and supper bass sound channel socket 43, and preposition sound channel socket 41, rearmounted sound channel socket 42, center channel and supper bass sound channel socket 43 can be connected with 5.1 audio amplifiers.
Decoded portion 33 comprises digital/analog signal conversion, analog/digital signal conversion, volume control 331, and computing amplifies 332, program storage 333, Digital Signal Processing 334, central processing unit 335, data storage 336,5.1 the sound channel computing amplifies 337, shift register 338.
Control section 35 comprises input signal control 351,5.1 channel volumes control 352, output signal control 353 and power supply control 354.
Remote control part 36 includes a remote control and receives 361, and display part 37 comprise signal type show 371 and mode of operation show 372.
Shown in Figure 3, the front panel of digital decoding power amplifier box 30 be provided with mains switch 51,5.1 channel volume control knobs 52, input signal control knob 53,5.1 sound channel earphone sockets 54, output signal control switch 55, remote control receive 361 and signal type show indicator light 56,57,58, mode of operation display 59.5.1 sound channel earphone socket 54 has two, can connect two earphones simultaneously.
After power supply part 31 received external powers, several roads that are divided into different voltages such as 5V, 2.5V after voltage stabilizing were given stimulus part 32, decoded portion 33, segment signal output 34, remote control part 36 and display part 37 power supplies respectively.
External DVD, PS2, X-BOX, audio signals such as TV, coaxial from signal input part part 32, optical fiber, the stereo interface input, by control partly 35 input signal control knob 53 select or remote control partly 36 remote control receive 361 and accept remote controller and select, show partly 37 display operation states, decoding partly 33 is handled input signal, by partly 35 output signal control switch 55 selections of control, from signal output partly 34 5.1 sound channel circuits output to audio amplifier or 5.1 sound channel power amplifiers output to earphone, show that simultaneously partly 37 mode of operation shows that 372 have corresponding indication.
The stereo analog input interface 46 of digital decoding power amplifier box 30 rear boards can link to each other with stereo source of sound, carries out audio signal transmission.
The digital coaxial signal input interface 44 of digital decoding power amplifier box 30 rear boards, digital fiber-optic signal input interface 45 can link to each other with digital sources of sound such as DVD, PS2, XBOX.
Digital decoding power amplifier box 30 front panels have mains switch 51, work of may command complete machine or holding state.
The size of the total volume of 5.1 channel volume control knobs, 52 scalable of digital decoding power amplifier box 30 front panels; Under simulation 5.1 surround sounds or digital 5.1 surround sound states, can there be multiple acoustic pattern to select (as film, recreation, music etc.).
The input signal control knob 53 of digital decoding power amplifier box 30 front panels can be selected signal inputs such as stereo simulation, digital coaxial, digital optical fiber.
The signal type of digital decoding power amplifier box 30 front panels shows that indicator light 56 is a digital circulating sound indicator light frequently; Signal type shows that indicator light 57 is an analog loop surround-sound audio indicator light; Signal type shows that indicator light 58 is the stereo audio indicator light.
The remote control of digital decoding power amplifier box 30 front panels receives 361, the more multioperation function that can be provided by remote controller.
The mode of operation display 59 of digital decoding power amplifier box 30 front panels is multiple demonstrations such as power supply, volume, input, functional status.
5.1 sound channel earphone sockets 54 of digital decoding power amplifier box 30 front panels are the nine kinds of needles accessory power outlet, for 5.1 sound channel earphones provide output signal.
During complete machine work, mode of operation display 59 can show volume (00～80); Regulate 5.1 channel volume control knobs 52, nixie display shows with earpiece volume respective change; Press input signal control knob 53, can select coaxial/optical fiber/analog signal input mode, display 59 shows CO/OP/AV; If optical fiber/and coaxially be the input of AC-3/DTS signal, then signal type shows that indicator light 56 can be bright, and the indication voice output is digital 5.1 sound channels, and press 5.1 channel volume control knobs 52 this moment, has multiple voice effect mode, display 59 demonstration C, G etc.; If optical fiber/coaxial be PCM or analog signal input, then signal type shows that indicator light 58 can be bright, it is stereo indicating voice output; Press 5.1 channel volume control knobs 52 this moment, then signal type shows that indicator light 57 can be bright, and the indication voice output is simulation 5.1 sound channels, and multiple voice effect mode is arranged, and display 59 shows P1-P6.
Accompanying drawing 5 is the circuit diagram of one preferred embodiment of the present invention.
Fig. 5-1 part, external power (12V) are divided into several roads and supply with each several part as working power from the DC1 input.One the tunnel through diode D2, and triode Q15 supplies with mute circuit; One the tunnel through diode D5, behind the electrolytic capacitor filter C87, supply with integrated regulator IC11 (LA7805), amplifier integrated circuit (IC) 1, IC2, IC5, IC8, IC9, IC13, (shown in Fig. 5-1,2 parts), electronic switch integrated circuit (IC) 28, IC29 (shown in Fig. 5-3 part); One the tunnel through diode D9, D8, D7, the D6 step-down of connecting, electrolytic capacitor filter C89, from 1 input of integrated regulator IC12 pin, export the 5V voltages by IC12 pin 3 after the voltage stabilizing, through electrolytic capacitor filter C90, supply with optical fiber receiver socket CN11, (shown in Fig. 5-1 part), conversion of signals mute circuit Q13, the digital/analog signal conversion, analog/digital signal conversion, volume control integrated circuit IC24 (shown in Fig. 5-4 part), central processing unit integrated circuit (IC) 18 (shown in Fig. 5-5 part), wherein a part of power supply of 5V is from 3 inputs of IC7 pin, by IC7 pin 2 output 2.5V voltages,, supply with digital signal processing integrated circuit IC17 after the voltage stabilizing through electrolytic capacitor filter C96, the digital/analog signal conversion, analog/digital signal conversion, volume control integrated circuit IC24; The a part of power supply of 5V is communicated to socket line CN3 pin 9 through socket line CN4 pin 9, through resistance R 51, electrochemical capacitor C64, ceramic disc capacitor C156, and the power supply decoupling circuit of composition, filtering low-and high-frequency interference signal receives an IR1 power supply to remote control; Wherein the 5V power supply of socket line CN3 pin 9 also shows that to shift register integrated circuit U1, U2 and signal type light-emitting diode, mode of operation show power supply control triode Q11, Q12, the Q14 power supply of charactron, (shown in Fig. 5-6 part).IC12 pin 3 output 5V voltages, another road through D13 by electrochemical capacitor C162, ceramic disc capacitor C60, the electric source filter circuit of composition, filtering low-and high-frequency interference signal is to program storage integrated circuit (IC) 16, data storage integrated circuit (IC) 14, IC15 power supply; IC11 pin 3 output 5V voltages are behind electrochemical capacitor C66 electric source filter circuit, to power amplifier integrate circuit IC3, IC4, IC6 power supply; After pressing mains switch SW3, complete machine enters operating state.
The digital coaxial signal of external source of sound is by 1 output of coaxial socket CN12 point, and through coupling capacitance C128, signal processing is carried out in 49 inputs of IC24 pin.
The digital fiber-optic signal of external source of sound is by 3 outputs of fiber-optical socket CN11 point, and through coupling capacitance C129, signal processing is carried out in 48 inputs of IC24 pin.
The analog signal of external source of sound is exported by stereo jack CN10, the left and right sound channels signal is respectively through coupling capacitance C80, C81, resistance R 90, R86, carry out the signal processing and amplifying from 6 inputs of amplifier integrated circuit (IC) 8 pin 6, IC9 pin, the differential wave of output is coupled to 16,15,14,13 inputs of IC24 pin by resistance R 78, R77, R75, R76 and capacitor C 75, C77, C78, C79 respectively carries out signal processing.
The digital coaxial or fiber-optic signal of external source of sound input, if Dolby Digital signal (DOLBYDIGITAL), then DOLBY DIGIT LED 4 is shinny; If the PCM signal, then DOLBY PROLOGIC LED 3 is shinny; External source of sound input analog signal, STEREO LED 2 is shinny.The signal of external source of sound input is selected coaxial, optical fiber, analog input by input signal selector switch SW2, and charactron LED1 can corresponding demonstration CO, OP, AV; 5.1 channel volume control handle VOL1, SW1 is in earphone position at the output signal control switch, and the total volume of left and right rotation scalable, charactron LED1 have respective digital to show.
The numeral or the analog signal of external source of sound input, through decoding, after the processing, from IC24 pin 37,36,35,34,33,32,31,30,29,28,27,26 outputs, 5.1 channel audio signal, through coupling capacitance C74, C28, C29, C30, C31, C32, C33, C34, C35, C36, C72, C73, resistance R 4, R2, R7, R8, R505, R17, R140, R142, R21, R24, R22, R23, R20, R19, R144, R145, R38, R41, R39, R40, R37, R36, R148, R146, respectively from amplifier integrated circuit (IC) 13, IC1, the pin 2 of IC2,3,4,5 inputs, after the amplification respectively by IC13, IC1, the pin 1 of IC2,7 outputs, respectively through capacitor C 153, C82, C83, C84, C85, C86 is coupled to electronic switch converter ic IC28, the pin 4 of IC29,15,14 inputs, if output signal control switch SW1 is in earphone position, then 5.1 sound channel signals are respectively from electronic switch converter ic IC28, the pin 3 of IC29,1,13 outputs, through resistance R 135, R65, R137, R64, R63, R139, R62, R164, R59, R163, R61, R162, capacitor C 93, C92, C101, C100, C109, C108 is coupled to power amplifier integrate circuit IC3, IC4, the pin 6 of IC6,2 inputs, behind the power amplifier from IC3, IC4, the pin 7 of IC6,1 output is through coupling electrochemical capacitor C65, C91, C98, C99, C106, C107 outputs to socket line CN5, CN2 is connected to 5.1 earphone nine kinds of needles seat SV, on the 1SV2.If output signal control switch SW1 is in the audio amplifier position, then 5.1 sound channel signals are exported from the pin 5,2,12 of electronic switch converter ic IC28, IC29 respectively, through resistance R 152, R28, R29, R30, R31, R32, deliver to pin 2,3 outputs of 5.1 sound channel signal circuits output stereo jack CN7, CN8, CN9.
In sum; the present invention really can reach expection multitrack surround sound effect; described explanation, diagram only are the preferred embodiment of typical case's application of the present invention program; be not to limit practical range of the present invention with this; equivalent modifications and variation that the spirit of Fan Yiben creation is done all should be covered by in protection scope of the present invention.
Claims (7)
1, digital decoding 5.1 sound channel ambiophonic system earphones, comprise earphone body (10), external power supply plug (20), and between earphone body (10) and external power supply plug (20), insert a digital decoding power amplifier box (30), the three is connected by lead, it is characterized in that: in described digital decoding power amplifier box (30), be provided with power input part branch (31), stimulus part (32), decoded portion (33), segment signal output (34) and control section (35), wherein stimulus part (32) contains digital coaxial signal defeated (321), digital fiber-optic signal input (322) and stereo analog signal input (323); Segment signal output (34) contains the output of 5.1 sound channel circuits (341), 5.1 sound channel power amplifications (342), 5.1 sound channel power amplifiers outputs (343), 5.1 sound channel earphones (344) and electronic switch conversion (345), and decoded 5.1 sound channel circuits outputs (341) connect preposition sound channel socket (41), rearmounted sound channel socket (42), center channel and supper bass sound channel socket (43).
2, digital decoding 5.1 sound channel ambiophonic system earphones according to claim 1, it is characterized in that: also be provided with remote control part (36) and display part (37) in the described digital decoding power amplifier box (30), remote control part (36) includes a remote control and receives head (361), and display part (37) comprise signal type demonstration (371) and mode of operation shows (372).
3, digital decoding 5.1 sound channel ambiophonic system earphones according to claim 1, it is characterized in that: described decoded portion (33) comprises digital/analog signal conversion, analog/digital signal conversion, volume control (331), (332) are amplified in computing, program storage (333), Digital Signal Processing (334), central processing unit (335), data storage (336), 5.1 (337), shift register (338) are amplified in the sound channel computing.
4, digital decoding 5.1 sound channel ambiophonic system earphones according to claim 1 is characterized in that: described control section (35) comprises input signal control (351), 5.1 channel volumes controls (352), output signal control (353) and power supply control (354).
5, according to each described digital decoding 5.1 sound channel ambiophonic system earphones in the claim 1～4, it is characterized in that: the front panel of described digital decoding power amplifier box (30) is provided with mains switch (51), 5.1 channel volume control knobs (52), input signal control knob (53), 5.1 sound channel earphone sockets (54), output signal control switch (55), remote control receives head (361) and signal type shows indicator light (56,57,58), mode of operation display (59).
6, according to each described digital decoding 5.1 sound channel ambiophonic system earphones in the claim 1～4, it is characterized in that: the power interface (47) that preposition sound channel socket (41), rearmounted sound channel socket (42), center channel and supper bass sound channel socket (43), digital coaxial signal input interface (44), digital fiber-optic signal input interface (45) and stereo analog input interface (46) is set on the rear board of described digital decoding power amplifier box (30) and is connected with external power supply plug (20).
7, digital decoding 5.1 sound channel ambiophonic system earphones according to claim 5 is characterized in that: two 5.1 sound channel earphone sockets (54) are set on the front panel of described digital decoding power amplifier box (30).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510120737 CN1822712A (en) | 2005-12-19 | 2005-12-19 | Digital decoding 5.1 sound track circulating sound system earphone |
| PCT/CN2006/000192 WO2007071125A1 (en) | 2005-12-19 | 2006-02-05 | A earphone for a digital decoding surrounding sound system of 5.1 sound channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510120737 CN1822712A (en) | 2005-12-19 | 2005-12-19 | Digital decoding 5.1 sound track circulating sound system earphone |
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| Publication Number | Publication Date |
|---|---|
| CN1822712A true CN1822712A (en) | 2006-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510120737 Pending CN1822712A (en) | 2005-12-19 | 2005-12-19 | Digital decoding 5.1 sound track circulating sound system earphone |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1822712A (en) |
| WO (1) | WO2007071125A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361507A (en) * | 2011-07-02 | 2012-02-22 | 无锡同春新能源科技有限公司 | Circuit device of supplying power to integrated circuit used for sound equipment by solar energy photovoltaic power generation system |
| CN102647659A (en) * | 2012-04-16 | 2012-08-22 | 广东好帮手电子科技股份有限公司 | Automatic multi-sound-channel output detection device and detection system with same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5930758A (en) * | 1990-10-22 | 1999-07-27 | Sony Corporation | Audio signal reproducing apparatus with semiconductor memory storing coded digital audio data and including a headphone unit |
| JP2003280693A (en) * | 2002-03-22 | 2003-10-02 | Toshiba Corp | Playback unit, headphone, and playback method |
| US20050271218A1 (en) * | 2004-06-07 | 2005-12-08 | Tseng-Tien Peng | Palm type dolby decoding earphone device |
-
2005
- 2005-12-19 CN CN 200510120737 patent/CN1822712A/en active Pending
-
2006
- 2006-02-05 WO PCT/CN2006/000192 patent/WO2007071125A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361507A (en) * | 2011-07-02 | 2012-02-22 | 无锡同春新能源科技有限公司 | Circuit device of supplying power to integrated circuit used for sound equipment by solar energy photovoltaic power generation system |
| CN102647659A (en) * | 2012-04-16 | 2012-08-22 | 广东好帮手电子科技股份有限公司 | Automatic multi-sound-channel output detection device and detection system with same |
| CN102647659B (en) * | 2012-04-16 | 2014-12-31 | 广东好帮手电子科技股份有限公司 | Automatic multi-sound-channel output detection device and detection system with same |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007071125A1 (en) | 2007-06-28 |
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