CN108255765A - Vehicle-mounted CD host As UX turns usb audio transmitting device and its transmission method - Google Patents
Vehicle-mounted CD host As UX turns usb audio transmitting device and its transmission method Download PDFInfo
- Publication number
- CN108255765A CN108255765A CN201810262848.XA CN201810262848A CN108255765A CN 108255765 A CN108255765 A CN 108255765A CN 201810262848 A CN201810262848 A CN 201810262848A CN 108255765 A CN108255765 A CN 108255765A
- Authority
- CN
- China
- Prior art keywords
- chip
- feet
- resistance
- connection
- module
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000012545 processing Methods 0.000 claims abstract description 9
- 230000005236 sound signal Effects 0.000 claims abstract description 7
- 101000941170 Homo sapiens U6 snRNA phosphodiesterase 1 Proteins 0.000 claims description 12
- 102100031314 U6 snRNA phosphodiesterase 1 Human genes 0.000 claims description 12
- 239000013078 crystal Substances 0.000 claims description 9
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 6
- 241001269238 Data Species 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 238000007792 addition Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0042—Universal serial bus [USB]
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The invention discloses a kind of vehicle-mounted CD host As UX to turn usb audio transmitting device and its transmission method,Include AUX interface modules,Analogue audio frequency revolution word tone frequency module,Control module,Usb interface module and clock module,Analog audio signal of the AUX interface modules on processing acquisition AUX interfaces,Analogue audio frequency revolution word tone frequency module is connect with AUX interface modules is converted into digital audio and video signals for the analogue audio frequency for acquiring AUX interface modules,Control module connect to carry out calculation processing to digital audio and video signals with analogue audio frequency revolution word tone frequency module,Usb interface module connect the USB interface for the digital audio and video signals handled well to be transferred to vehicle-mounted CD hosts with control module,Clock module connects analogue audio frequency revolution word tone frequency module and control module for providing synchronizing clock signals respectively.The AUX that the present invention realizes vehicle-mounted CD hosts turns usb audio transmission.
Description
Technical field
The present invention relates to a kind of audio transmission device and its transmission method, particularly a kind of vehicle-mounted CD host As UX turns USB sounds
Frequency transmitting device and its transmission method.
Background technology
With the intelligentized development of automobile mounted amusement equipment, the audio playing apparatus of middle control CD hosts, taking slowly
The audio playing function (i.e. AUX audio interface) of the external analog audio interface for the original indispensability that disappears.It is gradual employ USB or
The mode of this number of bluetooth transmits audio.But also have absolutely that a part of car owner and rear dress market need AUX this connects mostly
Mouth carries out the broadcasting of music to transmit audio to middle control CD hosts.And there was only USB interface for middle control CD hosts at present, do not have
The situation of AUX interfaces, it is necessary to design a kind of AUX and turn usb audio transmitting device to carry out interface conversion transmission.
Invention content
The technical problems to be solved by the invention be to provide a kind of vehicle-mounted CD host As UX turn usb audio transmitting device and its
Transmission method.
In order to solve the above technical problems, the technical solution adopted in the present invention is：
A kind of vehicle-mounted CD host As UX turns usb audio transmitting device, it is characterised in that：Include AUX interface modules, analog audio
Frequency revolution word tone frequency module, control module, usb interface module and clock module, AUX interface modules connect for handling acquisition AUX
Analog audio signal on mouth, analogue audio frequency revolution word tone frequency module connect to adopt AUX interface modules with AUX interface modules
The analogue audio frequency of collection is converted into digital audio and video signals, and control module is connect with analogue audio frequency revolution word tone frequency module for number
Audio signal carries out calculation processing, and usb interface module connect to transmit the digital audio and video signals handled well with control module
To the USB interface of vehicle-mounted CD hosts, clock module connects analogue audio frequency revolution word tone frequency module and control module for carrying respectively
For synchronizing clock signals.
Further, the control module includes chip U1, and 1 foot of chip U1 connects resistance R17 one end, and resistance R17 is another
One end be grounded, 5 feet of the 4 foot connecting interface P3 of chip U1, interface P3 1 foot connection resistance R22 one end and connect power supply+
3.3V, 4 feet of resistance R22 other end connecting interfaces P3, the 2 feet ground connection of interface P3,3,4 feet of interface P3 connect chip U1 respectively
19,20 feet, the 5 foot connection+3.3V power supplys of chip U1,10 feet connection resistance R29 one end of chip U1,11 feet of chip U1 connect
Connecting resistance R28 one end, 13 feet connection resistance R27 one end of chip U1, the 16 foot connection+3.3V power supplys of chip U1.
Further, 2,5 feet that the AUX interface modules include AUX interfaces P4, AUX interface P4 are grounded, AUX interfaces P4
3 feet connection capacitance C16 one end, one end of the 4 feet connection capacitance C17 of AUX interfaces P4, the other end connection electricity of capacitance C16
Hinder R20 one end, other end connection resistance R21 one end of capacitance C17, other end connection capacitance C18 one end of resistance R20, capacitance
The C18 other ends are grounded, other end connection capacitance C19 one end of resistance R21, capacitance C19 other ends ground connection.
Further, the analogue audio frequency revolution word tone frequency module include chip U2, chip U2 1 foot connection capacitance C4 and
The other end ground connection of one end of capacitance C5, capacitance C4 and capacitance C5,2, the 5 feet ground connection of chip U2, the 3 foot connection+5V of chip U2
Power supply, the 4 foot connection+3.3V power supplys of chip U2, the 7 feet connection resistance R29 other ends of chip U2, the 8 feet connection electricity of chip U2
Hinder the other end of R28, the other end of the 9 feet connection resistance R27 of chip U2,10 feet connection resistance R7 one end of chip U2, resistance
R7 other end connection+3.3V power supplys, 11 feet connection resistance R6 one end of chip U2, resistance R6 other end connection+3.3V power supplys, core
12 feet connection resistance R11 one end of piece U2, the other end ground connection of resistance R11,13 and 14 feet of chip U2 connect resistance R21 respectively
The other end and resistance R20 the other end.
Further, the clock module includes chip U6, the 1 foot connection capacitance C15 anodes and crystal oscillator chip of chip U6
1 foot of X1,2 feet of crystal oscillator chip X1 and 4 feet ground connection, the anode of the 3 feet connection capacitance C9 of crystal oscillator chip X1 and the 8 of chip U6
Foot, the cathode of capacitance C15 and the cathode ground connection of capacitance C9, the 2 foot connection+3.3V power supplys of chip U6, the 3 feet ground connection of chip U6,
One end of the 4 feet connection resistance R31 of chip U6,2 feet of the other end connection chip U1 of resistance R31, the 5 feet connection electricity of chip U6
R26 one end, 6 feet of the other end connection chip U2 of resistance R26 are hindered, 6,7 feet of chip U6 connect resistance R24 and resistance respectively
The other end ground connection of one end of R25, resistance R24 and resistance R25.
Further, the usb interface module include USB interface USB1, the 1 foot connection+5V power supplys of USB interface USB1 and
2 feet of voltage stabilizing chip U4, the 1 foot ground connection of voltage stabilizing chip U4, the 3 foot connection+3.3V power supplys of voltage stabilizing chip U4, USB interface USB1
2 feet and 3 feet connect one end of resistance R4 and one end of resistance R5 respectively, the other end of resistance R4 and the other end of resistance R5 point
Not Lian Jie chip U1 17 feet and 18 feet, USB interface USB1 4 feet ground connection.
A kind of vehicle-mounted CD host As UX turns the transmission method of usb audio transmitting device, it is characterised in that comprises the steps of：
Step 1：Data medium is turned to the USB of usb audio transmitting device and vehicle-mounted CD hosts by vehicle-mounted CD host As UX
Interface connects；
Step 2：Data medium turns the frequency of the module always of usb audio transmitting device according to vehicle-mounted CD host As UX by sound
Frequency evidence is transmitted to CAD hosts；
Step 3：The audio data of vehicle-mounted CD host receiving datas carrier is simultaneously played out with sound card clock in host；
Step 4：Vehicle-mounted CD host drivers start rate matchers；
Step 5：Sound card frequency feedback to vehicle-mounted CD host As UX is turned usb audio transmitting device by sound card in vehicle-mounted CD hosts
Control module, the frequency of feedback and the frequency comparison of clock module calculate error by control module；
Step 6：It is defeated to turn usb audio transmitting device according to the error being calculated to vehicle-mounted CD host As UX for control module
The audio data gone out is adjusted.
Further, the process of the step 6 sound intermediate frequency data point reuse is
When the sound card frequency of CD hosts is higher than the frequency of clock module, the audio data sent out is merged one by control module
Partial data, merging data content length are determined by the error calculated；
When the sound card frequency of CD hosts is lower than the frequency of clock module, control module inserts the audio data sent out
Value is inserted into a part of data, is inserted into data content length and is determined by the error calculated.
Compared with prior art, the present invention haing the following advantages and effect：The present invention turns digital audio by analogue audio frequency
The analog audio signal that AUX interface modules acquire is converted into digital signal by module, and after processing module calculation processing by
Usb interface module exports, and the AUX for realizing vehicle-mounted CD hosts turns usb audio transmission.
Description of the drawings
The vehicle-mounted CD host As UX that Fig. 1 is the present invention turns usb audio transmitting device module diagram.
Fig. 2 is that the vehicle-mounted CD host As UX of the present invention turns the integrated circuit figure of usb audio transmitting device.
Fig. 3 is the circuit diagram of the control module of the present invention.
Fig. 4 is the circuit diagram of the AUX interface modules of the present invention.
Fig. 5 is the circuit diagram of the analogue audio frequency revolution word tone frequency module of the present invention.
Fig. 6 is the circuit diagram of the clock module of the present invention.
Fig. 7 is the circuit diagram of the usb interface module of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings and pass through embodiment the present invention is described in further detail, following embodiment is to this hair
Bright explanation and the invention is not limited in following embodiments.
As shown in Figure 1, the present invention a kind of vehicle-mounted CD host As UX turn usb audio transmitting device, comprising AUX interface modules,
Analogue audio frequency revolution word tone frequency module, control module, usb interface module and clock module, AUX interface modules acquire for handling
Analog audio signal on AUX interfaces, analogue audio frequency revolution word tone frequency module are connect with AUX interface modules for by AUX interfaces
The analogue audio frequency of module acquisition is converted into digital audio and video signals, and control module connect with analogue audio frequency revolution word tone frequency module and is used for
Digital audio and video signals are carried out with calculation processing, usb interface module connect to believe the digital audio handled well with control module
The USB interface of vehicle-mounted CD hosts number is transferred to, clock module connects analogue audio frequency revolution word tone frequency module and control module respectively
For providing synchronizing clock signals.
As shown in Figures 2 and 3, control module includes chip U1, and chip U1 uses STMicw Electronics STM32f042f6p6, core
1 foot connection resistance R17 one end of piece U1, resistance R17 other ends ground connection, 5 feet of the 4 foot connecting interface P3 of chip U1, interface P3
1 foot connection resistance R22 one end and connect power supply+3.3V, 4 feet of resistance R22 other end connecting interfaces P3,2 feet of interface P3
Ground connection, 3,4 feet of interface P3 connect the 19 of chip U1,20 feet respectively, the 5 foot connection+3.3V power supplys of chip U1, and the 10 of chip U1
Foot connection resistance R29 one end, 11 feet connection resistance R28 one end of chip U1,13 feet connection resistance R27 one end of chip U1, core
The 16 foot connection+3.3V power supplys of piece U1.
As shown in figure 4,2,5 feet that AUX interface modules include AUX interfaces P4, AUX interface P4 are grounded, the 3 of AUX interfaces P4
One end of foot connection capacitance C16, one end of the 4 feet connection capacitance C17 of AUX interfaces P4, the other end connection resistance of capacitance C16
R20 one end, other end connection resistance R21 one end of capacitance C17, other end connection capacitance C18 one end of resistance R20, capacitance C18
The other end is grounded, other end connection capacitance C19 one end of resistance R21, capacitance C19 other ends ground connection.
As shown in figure 5, analogue audio frequency revolution word tone frequency module includes chip U2, chip U2 uses Texas Instrument
The other end ground connection of one end of the 1 foot connection capacitance C4 and capacitance C5 of pcm1808pwr, chip U2, capacitance C4 and capacitance C5, core
2, the 5 feet ground connection of piece U2, the 3 foot connection+5V power supplys of chip U2, the 4 foot connection+3.3V power supplys of chip U2,7 feet of chip U2 connect
The connecting resistance R29 other ends, the other end of the 8 feet connection resistance R28 of chip U2, the 9 feet connection resistance R27's of chip U2 is another
End, 10 feet connection resistance R7 one end of chip U2, resistance R7 other end connection+3.3V power supplys, the 11 feet connection resistance of chip U2
R6 one end, resistance R6 other end connection+3.3V power supplys, 12 feet connection resistance R11 one end of chip U2, the other end of resistance R11
Ground connection, 13 and 14 feet of chip U2 connect the other end of resistance R21 and the other end of resistance R20 respectively.
As shown in fig. 6, clock module include chip U6, chip U6 use PhaseLinkpll601-27sc, the 1 of chip U6
Foot connects capacitance C15 anodes and 1 foot of crystal oscillator chip X1,2 feet of crystal oscillator chip X1 and 4 feet ground connection, and 3 feet of crystal oscillator chip X1 connect
Connect the anode of capacitance C9 and 8 feet of chip U6, the cathode of capacitance C15 and the cathode ground connection of capacitance C9, the 2 feet connection of chip U6+
3.3V power supplys, the 3 feet ground connection of chip U6, one end of the 4 feet connection resistance R31 of chip U6, the other end connection chip of resistance R31
2 feet of U1,5 feet connection resistance R26 one end of chip U6,6 feet of the other end connection chip U2 of resistance R26,6, the 7 of chip U6
Foot connects the other end ground connection of one end of resistance R24 and resistance R25, resistance R24 and resistance R25 respectively.
As shown in fig. 7, usb interface module includes USB interface USB1, the 1 foot connection+5V power supplys of USB interface USB1 and steady
2 feet of chip U4 are pressed, 1 foot of voltage stabilizing chip U4 is grounded, the 3 foot connection+3.3V power supplys of voltage stabilizing chip U4, and the 2 of USB interface USB1
Foot and 3 feet connect one end of resistance R4 and one end of resistance R5, the other end of resistance R4 and the other end difference of resistance R5 respectively
Connect 17 feet and 18 feet of chip U1, the 4 feet ground connection of USB interface USB1.
The analog audio signal that AUX interface modules acquire is converted by the present invention by analogue audio frequency revolution word tone frequency module
Digital signal, and exported after processing module calculation processing by usb interface module, the AUX for realizing vehicle-mounted CD hosts turns USB
Audio transmission.
A kind of vehicle-mounted CD host As UX turns the transmission method of usb audio transmitting device, comprises the steps of：
Step 1：Data medium is turned to the USB of usb audio transmitting device and vehicle-mounted CD hosts by vehicle-mounted CD host As UX
Interface connects；
Step 2：Data medium turns the frequency of the module always of usb audio transmitting device according to vehicle-mounted CD host As UX by sound
Frequency evidence is transmitted to CAD hosts；
Step 3：The audio data of vehicle-mounted CD host receiving datas carrier is simultaneously played out with sound card clock in host；
Step 4：Vehicle-mounted CD host drivers start rate matchers；
Step 5：Sound card frequency feedback to vehicle-mounted CD host As UX is turned usb audio transmitting device by sound card in vehicle-mounted CD hosts
Control module, the frequency of feedback and the frequency comparison of clock module calculate error by control module；
Step 6：It is defeated to turn usb audio transmitting device according to the error being calculated to vehicle-mounted CD host As UX for control module
The audio data gone out is adjusted.
Audio data adjustment process be
When the sound card frequency of CD hosts is higher than the frequency of clock module, the audio data sent out is merged one by control module
Partial data, merging data content length are determined by the error calculated；
When the sound card frequency of CD hosts is lower than the frequency of clock module, control module inserts the audio data sent out
Value is inserted into a part of data, is inserted into data content length and is determined by the error calculated.
Control method in this way, the sound card clock frequency and vehicle-mounted CD host As UX for solving CD hosts turn usb audio
The error problem of the clock module frequency of transmitting device.
Described in this specification above content is only illustrations made for the present invention.Technology belonging to the present invention
The technical staff in field can do described specific embodiment various modifications or additions or in a similar way
It substitutes, content without departing from description of the invention or surmounts range defined in the claims, this should all be belonged to
The protection domain of invention.
Claims (8)
1. a kind of vehicle-mounted CD host As UX turns usb audio transmitting device, it is characterised in that：Include AUX interface modules, analogue audio frequency
Revolution word tone frequency module, control module, usb interface module and clock module, AUX interface modules acquire AUX interfaces for handling
On analog audio signal, analogue audio frequency revolution word tone frequency module connect to acquire AUX interface modules with AUX interface modules
Analogue audio frequency be converted into digital audio and video signals, control module is connect with analogue audio frequency revolution word tone frequency module for logarithm word tone
Frequency signal carries out calculation processing, and usb interface module connect the digital audio and video signals handled well being transferred to control module
The USB interface of vehicle-mounted CD hosts, clock module connect analogue audio frequency revolution word tone frequency module and control module for providing respectively
Synchronizing clock signals.
2. vehicle-mounted CD host As UX described in accordance with the claim 1 turns usb audio transmitting device, it is characterised in that：The control mould
Block includes chip U1,1 foot connection resistance R17 one end of chip U1, resistance R17 other ends ground connection, the 4 foot connecting interfaces of chip U1
5 feet of P3,1 foot connection resistance R22 one end of interface P3 simultaneously connect power supply+3.3V, and the 4 of resistance R22 other end connecting interfaces P3
Foot, the 2 feet ground connection of interface P3,3,4 feet of interface P3 connect the 19 of chip U1,20 feet, the 5 foot connection+3.3V of chip U1 respectively
Power supply, 10 feet connection resistance R29 one end of chip U1,11 feet connection resistance R28 one end of chip U1, the 13 feet connection of chip U1
Resistance R27 one end, the 16 foot connection+3.3V power supplys of chip U1.
3. vehicle-mounted CD host As UX described in accordance with the claim 2 turns usb audio transmitting device, it is characterised in that：The AUX connects
2,5 feet that mouth mold block includes AUX interfaces P4, AUX interface P4 are grounded, one end of the 3 feet connection capacitance C16 of AUX interfaces P4, AUX
One end of the 4 feet connection capacitance C17 of interface P4, other end connection resistance R20 one end of capacitance C16, the other end of capacitance C17 connect
Connecting resistance R21 one end, other end connection capacitance C18 one end of resistance R20, capacitance C18 other ends ground connection, resistance R21's is another
End connection capacitance C19 one end, capacitance C19 other ends ground connection.
4. vehicle-mounted CD host As UX described in accordance with the claim 3 turns usb audio transmitting device, it is characterised in that：The analog audio
Frequency revolution word tone frequency module includes chip U2, one end of the 1 foot connection capacitance C4 and capacitance C5 of chip U2, capacitance C4 and capacitance C5
The other end ground connection, chip U2 2,5 feet ground connection, the 3 foot connection+5V power supplys of chip U2, chip U2 4 foot connection+3.3V electricity
Source, the 7 feet connection resistance R29 other ends of chip U2, the other end of the 8 feet connection resistance R28 of chip U2,9 feet of chip U2 connect
The other end of connecting resistance R27,10 feet connection resistance R7 one end of chip U2, resistance R7 other end connection+3.3V power supplys, chip U2
11 feet connection resistance R6 one end, resistance R6 other end connection+3.3V power supplys, 12 feet connection resistance R11 one end of chip U2, electricity
The other end ground connection of R11 is hindered, 13 and 14 feet of chip U2 connect the other end of resistance R21 and the other end of resistance R20 respectively.
5. turn usb audio transmitting device according to the vehicle-mounted CD host As UX described in claim 4, it is characterised in that：The clock mould
Block includes chip U6, the 1 foot connection capacitance C15 anodes of chip U6 and 1 foot of crystal oscillator chip X1,2 feet and 4 feet of crystal oscillator chip X1
Ground connection, the anode of 3 feet connection capacitance C9 of crystal oscillator chip X1 and 8 feet of chip U6, the cathode of capacitance C15 and the cathode of capacitance C9
Ground connection, the 2 foot connection+3.3V power supplys of chip U6, the 3 feet ground connection of chip U6, one end of the 4 feet connection resistance R31 of chip U6, electricity
Hinder 2 feet of the other end connection chip U1 of R31,5 feet connection resistance R26 one end of chip U6, the other end connection core of resistance R26
6 feet of piece U2,6,7 feet of chip U6 connect one end of resistance R24 and resistance R25 respectively, and resistance R24 and resistance R25's is another
End ground connection.
6. vehicle-mounted CD host As UX described in accordance with the claim 3 turns usb audio transmitting device, it is characterised in that：The USB connects
Mouth mold block includes USB interface USB1, the 1 foot connection+5V power supplys of USB interface USB1 and 2 feet of voltage stabilizing chip U4, voltage stabilizing chip U4
1 foot ground connection, the 3 foot connection+3.3V power supplys of voltage stabilizing chip U4,2 feet and 3 feet of USB interface USB1 connect resistance R4's respectively
One end and one end of resistance R5, the other end of resistance R4 and the other end of resistance R5 connect 17 feet and 18 feet of chip U1 respectively,
The 4 feet ground connection of USB interface USB1.
7. the vehicle-mounted CD host As UX described in a kind of claim 1-6 turns the transmission method of usb audio transmitting device, feature exists
In comprising the steps of：
Step 1：Data medium is turned to the USB interface of usb audio transmitting device and vehicle-mounted CD hosts by vehicle-mounted CD host As UX
Connection；
Step 2：Data medium turns the frequency of the module always of usb audio transmitting device according to vehicle-mounted CD host As UX by audio number
According to being transmitted to CAD hosts；
Step 3：The audio data of vehicle-mounted CD host receiving datas carrier is simultaneously played out with sound card clock in host；
Step 4：Vehicle-mounted CD host drivers start rate matchers；
Step 5：Sound card frequency feedback is turned the control of usb audio transmitting device by sound card to vehicle-mounted CD host As UX in vehicle-mounted CD hosts
The frequency of feedback and the frequency comparison of clock module are calculated error by molding block, control module；
Step 6：Control module turns vehicle-mounted CD host As UX the output of usb audio transmitting device according to the error being calculated
Audio data is adjusted.
8. according to the transmission method described in claim 7, it is characterised in that：The process of the step 6 sound intermediate frequency data point reuse is
When the sound card frequency of CD hosts is higher than the frequency of clock module, the audio data sent out is merged a part by control module
Data, merging data content length are determined by the error calculated；
When the sound card frequency of CD hosts is lower than the frequency of clock module, control module inserts the audio data sent out into row interpolation
Enter a part of data, be inserted into data content length and determined by the error calculated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810262848.XA CN108255765A (en) | 2018-03-28 | 2018-03-28 | Vehicle-mounted CD host As UX turns usb audio transmitting device and its transmission method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810262848.XA CN108255765A (en) | 2018-03-28 | 2018-03-28 | Vehicle-mounted CD host As UX turns usb audio transmitting device and its transmission method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108255765A true CN108255765A (en) | 2018-07-06 |
Family
ID=62747488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810262848.XA Pending CN108255765A (en) | 2018-03-28 | 2018-03-28 | Vehicle-mounted CD host As UX turns usb audio transmitting device and its transmission method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108255765A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101221805A (en) * | 2007-01-12 | 2008-07-16 | 株式会社Telechips | Media connecting mechanism and system using the same |
| CN201199449Y (en) * | 2008-05-21 | 2009-02-25 | 何根洪 | Vehicle-mounted Chinese display numeral acoustics player |
| CN103165169A (en) * | 2011-12-19 | 2013-06-19 | Gn奈康有限公司 | Method and system for synchronizing isochronous usb audio data to a RF communication device clock |
| CN203193646U (en) * | 2013-02-04 | 2013-09-11 | 国光电器股份有限公司 | Wireless digital sound console |
| CN103997614A (en) * | 2014-03-28 | 2014-08-20 | 惠州市德赛西威汽车电子有限公司 | Vehicle-mounted USB (Universal Serial Bus) and AUX_IN (Auxiliary Input) integrated device |
| CN205302942U (en) * | 2015-12-28 | 2016-06-08 | 广州汽车集团股份有限公司 | On -vehicle audio processing system |
| CN105764005A (en) * | 2016-03-02 | 2016-07-13 | 宁波音王电声股份有限公司 | Guitar power amplifier based on technology of DSP audio signal processing |
| CN205881462U (en) * | 2016-06-20 | 2017-01-11 | 深圳市牧声美科技有限公司 | On -vehicle audio player of intelligence |
| CN208477515U (en) * | 2018-03-28 | 2019-02-05 | 广州凯蒂诺信息科技有限公司 | Vehicle-mounted CD host A UX turns usb audio transmitting device |
-
2018
- 2018-03-28 CN CN201810262848.XA patent/CN108255765A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101221805A (en) * | 2007-01-12 | 2008-07-16 | 株式会社Telechips | Media connecting mechanism and system using the same |
| CN201199449Y (en) * | 2008-05-21 | 2009-02-25 | 何根洪 | Vehicle-mounted Chinese display numeral acoustics player |
| CN103165169A (en) * | 2011-12-19 | 2013-06-19 | Gn奈康有限公司 | Method and system for synchronizing isochronous usb audio data to a RF communication device clock |
| CN203193646U (en) * | 2013-02-04 | 2013-09-11 | 国光电器股份有限公司 | Wireless digital sound console |
| CN103997614A (en) * | 2014-03-28 | 2014-08-20 | 惠州市德赛西威汽车电子有限公司 | Vehicle-mounted USB (Universal Serial Bus) and AUX_IN (Auxiliary Input) integrated device |
| CN205302942U (en) * | 2015-12-28 | 2016-06-08 | 广州汽车集团股份有限公司 | On -vehicle audio processing system |
| CN105764005A (en) * | 2016-03-02 | 2016-07-13 | 宁波音王电声股份有限公司 | Guitar power amplifier based on technology of DSP audio signal processing |
| CN205881462U (en) * | 2016-06-20 | 2017-01-11 | 深圳市牧声美科技有限公司 | On -vehicle audio player of intelligence |
| CN208477515U (en) * | 2018-03-28 | 2019-02-05 | 广州凯蒂诺信息科技有限公司 | Vehicle-mounted CD host A UX turns usb audio transmitting device |
Non-Patent Citations (1)
| Title |
|---|
| 徐登峰: ""车载数字音频系统设计"", 《广东石油化工学院学报》, vol. 23, no. 3, 30 June 2013 (2013-06-30), pages 49 - 51 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20110123039A1 (en) | System and method for communicating on-board diagnostic information as an audio signal | |
| CN105832303A (en) | Sleep monitoring method and system | |
| CN108255765A (en) | Vehicle-mounted CD host As UX turns usb audio transmitting device and its transmission method | |
| CN208477515U (en) | Vehicle-mounted CD host A UX turns usb audio transmitting device | |
| DE112021005545T5 (en) | NODE DETECTION AND CONFIGURATION IN A DAISY CHAIN NETWORK | |
| CN103559878A (en) | Method for eliminating noise in audio information and device thereof | |
| CN109325142A (en) | A kind of song recommendations method based on vehicle running environment | |
| CN108111790A (en) | A kind of automobile data recorder | |
| CN209471447U (en) | The bus interface circuit of adaptive logic level | |
| TWI455018B (en) | Codec devices and operating and driving method thereof | |
| CN103533672B (en) | A kind of wireless karaoke OK system and its internal data exchange method | |
| CN102821341B (en) | Two-wire digital audio interface | |
| CN111459086B (en) | System and method for realizing scaler control and data processing | |
| CN209375896U (en) | Vehicle audio controls equipment and automobile | |
| CN207909122U (en) | A kind of SPI main controller devices based on PCIE interfaces | |
| CN107241671A (en) | A kind of sound system audio processing method and intelligent sound processing system | |
| CN207594873U (en) | A kind of automobile vehicle device prototype system based on BroadR-Reach Ethernets | |
| KR20100056678A (en) | Multimedia system for distinguishing communication of multimedia instrument | |
| CN111091802A (en) | Intelligent pickup | |
| CN111581240A (en) | Material processing method and device of terminal, storage medium and electronic equipment | |
| CN209433859U (en) | A kind of voice broadcast module of bicycle stereo garage | |
| CN201387713Y (en) | Device for measuring music pitch | |
| CN106301343A (en) | A kind of level self-defined multi-protocols digital audio and video signals generation system and method | |
| CN208337861U (en) | A kind of DSP digital active sound equipment | |
| CN107978196A (en) | Auxiliary system is trained in a kind of vocal music |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |