CN2800428Y - Vehicle-mounted GPS navigation, recreation system - Google Patents
Vehicle-mounted GPS navigation, recreation system Download PDFInfo
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- CN2800428Y CN2800428Y CN 200520001718 CN200520001718U CN2800428Y CN 2800428 Y CN2800428 Y CN 2800428Y CN 200520001718 CN200520001718 CN 200520001718 CN 200520001718 U CN200520001718 U CN 200520001718U CN 2800428 Y CN2800428 Y CN 2800428Y
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Abstract
The utility model provides a vehicle-carried GPS navigation and entertainment system which comprises a system control chip, a navigation system, a disc playing device, an input device, an audio switch module, a video switch module, an audio output device, a video output device and a power supply device, wherein the system control chip after receiving instructions of navigation and entertainment transmitted by the input device can output control commands respectively to the navigation system and the disc playing device; the navigation system and the entertainment disc playing device can simultaneously output audio and video signals to the audio and the video switch modules, and the audio and the video switch modules output multiple paths of the audio and the video signals to the audio output device and the video output device according to the commands of the system control chip; the audio and the video output devices can switch and output each audio and video signal to obtain the function of navigation and entertainment simultaneously. When output signals are entertainment signals, the audio and the video switch modules can automatically switch to the function of navigation in good time to achieve navigation prompting, and then, the original entertainment output signals can be switched automatically.
Description
Technical field
The present invention relates to a kind of guidance entertainment system (multimedia audiovisual system) that is used on the vehicles such as automobile, CD/VCD/DVD player, radio (AM/FM), audio frequency, video control, digital power amplifier, display screen etc. are incorporated in the cabinet simultaneously.The function that especially can provide navigation, amusement to serve simultaneously and can switch in good time can improve and drive enjoyment.
Background technology
Mostly be the absolute construction of entertainment systems or navigational system in the market.Usually be that entertainment systems need add the mode that navigational system or navigational system add entertainment systems in addition in addition, some product in addition also with power amplification system as standalone module, need independent the installation, product is installed connect complicated; Take interior space, use also very inconvenient.
Summary of the invention
In order to solve each stand-alone product installation in the prior art, to connect difficulty, take problems such as interior space, the invention provides a kind of car borne GPS navigation, entertainment systems, in a system, integrated the video disc broadcast, navigation feature, radio, six road 30W power amplifiers, 7 inches display screens, sound effect control, audio frequency, video switching device, input, output unit.Simultaneity factor can to each functional module unify control and function is switched, realize navigation and amusement is used simultaneously and the function of in good time switching signal.
The concrete technical scheme of this invention provides as follows:
A kind of car borne GPS navigation, entertainment systems is characterized in that, comprising: system control chip, navigational system, the first video disc playing device, the second video disc playing device, input media, audio frequency handover module, video frequency switching module, audio output device, video output device; The input end of described system control chip connects the output terminal of described input media and the described first video disc playing device respectively, the output terminal of described system control chip connects described navigational system respectively, the first video disc playing device, the second video disc playing device, the input end of audio frequency handover module and video frequency switching module, the input end of described navigational system connects the output terminal of the described first video disc playing device, the output terminal of described navigational system, the output terminal of the first video disc playing device, the output terminal of the second video disc playing device connects the input end of audio frequency handover module and video frequency switching module respectively, described audio frequency handover module output terminal connects audio output device, and the output terminal of video frequency switching module connects video output device.
Described car borne GPS navigation, entertainment systems also comprise a radio, its input end connected system control chip, and output terminal connects the audio frequency handover module.
Described system control chip receives the user instruction that input media transmits, if navigation command, system control chip difference navigation system and audio frequency, video switching device output control command, navigational system receives navigation data from the storage medium of the first video disc playing device (31), export navigating audio, vision signal respectively to audio frequency, video frequency switching module as calculated; If amusement video disc play command, system control chip is respectively to the second video disc playing device (32), the audio frequency handover module, video frequency switching module output control command, the second video disc playing device (32) is respectively to the audio frequency handover module, video frequency switching module output entertainment audio, the video entertainment signal, if radio order, system control chip is respectively to radio, audio frequency handover module output control command, the radio interface is to audio frequency handover module output audio signal, the audio frequency handover module exports described navigating audio signal or entertainment audio signal switching to audio output device, and video frequency switching module exports described navigation vision signal or the switching of entertainment video signal to video output device.
Also comprise the satnav receiving trap, be used for when vehicle ' departs from navigation way that system control chip is located the satellite location data that receiving trap receives vehicle via satellite, reorientating vehicle heading, and calculate navigation way.
Described audio output device comprises a digital power amplifier.
The described first video disc playing device (31) is a DVD player, it has DVD decode system and DVD player core, this DVD decode system is according to the order of system control chip, data to described DVD player core storage medium are decoded, when storage medium is navigation data, DVD decode system reporting system control chip, and export data to navigational system; When storage medium is recreation data, DVD decode system reporting system control chip, and export picture signal to video frequency switching module, with audio signal output to the audio frequency handover module.
Described system control chip is by control audio, video frequency switching module, with the audio frequency that in time automaticallyes switch, vision signal.
Described input media is the display screen or the telepilot of a touch display screen, band button.
Car borne GPS navigation of the present invention, entertainment systems can realize navigating and amusement function is carried out simultaneously, and the user can arbitrarily be switched navigation or entertainment mode.In addition, under normal circumstances, system just can navigate by the navigation data that the amusement playing device provides, but when vehicle departs from navigation circuit, can also be by receiving satellite location data, determine correct orientation after, redefine navigation way again.In addition, system control chip is by control audio, video switching device, and the voice signal that can also in time automatically switch is to realize the function that navigation is reminded in amusement.Project organization compactness of the present invention, easy to use.
Description of drawings
Fig. 1 is radio control interface circuit figure;
Fig. 2 is power amplifier interface circuit figure;
Fig. 3 is audio frequency handover module interface circuit figure;
Fig. 4 is navigational system, DVD navigation video disc player and amusement video disc player interface circuit figure;
Fig. 5 is the system control chip circuit diagram;
Fig. 6 is video switch and input system interface circuit figure;
Fig. 7 is the module connection layout of the embodiment of the invention;
Fig. 8 is the program flow diagram of the system control chip of the embodiment of the invention.
Embodiment
As shown in Figure 7, car borne GPS navigation of the present invention, entertainment systems comprise: system control chip 1, navigational system 2, DVD navigation video disc player 31, amusement video disc player 32, radio 8, interactive interface 6, audio frequency handover module 4, video frequency switching module 5, digital power amplifier 7 and supply unit 10; DVD navigation video disc player 31 wherein has DVD decode system and DVD player core.The annexation of each module is as follows:
The input end of system control chip 1 connects the output terminal of interactive interface 6 and DVD navigation video disc player 31 respectively, the output terminal of system control chip 1 connects navigational system 2 respectively, audio frequency handover module 4, video frequency switching module 5, DVD navigation video disc player 31, amusement video disc player 32, the input end of radio receiver module 8.The input end of navigational system 2 also connects the output terminal of DVD navigation video disc player 31, and the output terminal of navigational system 2 connects the input end of audio frequency handover module 4, video frequency switching module 5; The output terminal of DVD navigation video disc player 31, amusement video disc player 32 also is connected with the input end of audio frequency handover module 4, video frequency switching module 5 respectively; The output terminal of radio 8 connects the input end of audio frequency handover module 4, and the output terminal of audio frequency handover module 4 and video frequency switching module 5 is connected with the input end of digital power amplifier 7 and interactive interface 6 respectively.
Briefly introduce each functions of modules of car borne GPS navigation of the present invention, entertainment systems below:
Interactive interface 7: this device is by touch-screen or have the display input user instruction of button, also can pass through the telepilot input instruction, and switch each picture signal of output video handover module transmission.
DVD navigation video disc player 31: comprise DVD decode system and DVD player core; Wherein the DVD decode system provides the ATAPI interface of system and DVD player core, and system control chip 1 will pass to the DVD decode system from the order that interactive interface obtains by communication signal.If the amusement video disc is the reporting system control chip then, make system enter the play mode that entertainment mode is entertain mem signal such as DVD/VCD/CD/MP3, the DVD decode system is sent to video frequency switching module with picture signal; Sound signal is sent to the audio frequency handover module.If the navigation data video disc is the reporting system control chip then, make system enter navigation mode, the DVD decode system is sent to navigation feature CPU with data simultaneously.
Navigational system 2: system control chip 1 will pass to navigational system 2 from the order that interactive interface obtains by communication signal, the function of control navigational system.Navigational system receives navigation data and calculates the realization navigation feature from the DVD decode system.Navigational system is sent to video frequency switching module with the navigation picture signal; The navigating audio signal is sent to sound effect control and audio frequency handover module.
Amusement video disc player 32: under the control of system control chip 1, the picture signals such as DVD/VCD/CD/MP3 in the video disc player are sent to video frequency switching module; Video disc player sound signal is delivered to sound effect control and audio frequency handover module.The broadcast of system control chip by control signal control amusement video disc player, change function such as dish.
Radio receiver module 8: system control chip 1 is controlled this module by user instruction, realizes the radio receiving function.Radio receiver signal is sent to sound effect control and audio frequency handover module.
Video frequency switching module 4: the vision signal of will navigating, entertainment video signal are sent to interactive interface under the control of system control chip.
Sound effect control and audio frequency handover module 5: the sound signal that navigating audio signal, DVD entertain mem signal or radio are transmitted is sent to digital power amplifier under the control of system control chip.System control chip is also realized the control to the sound effect control chip.
Under the situation that navigational system and entertainment systems (amusement video disc player 32 or radio 8) are worked simultaneously, audio frequency, video frequency switching module can switch output navigation signal or entertain mem signal.Especially when switching is output as entertain mem signal, audio frequency, video frequency switching module can be in time, as: when calculating vehicle (can set various indicating modes) according to different situations from 100 meters of junction aheads, automatically switch to navigation feature, note with timely prompting driver, after prompting finishes, the play mode before switching to again.
Digital power amplifier 6: realize the power amplification of audio frequency.
Power-supply system 10:, realize the control of power supply for each functional module provides power supply.
Below in conjunction with Fig. 8, the workflow of concrete introducing system control chip 1:
System control chip receives the user instruction that transmits from interactive interface, sends control signal according to user instruction to corresponding navigation system, DVD navigation video disc player 31, amusement video disc player 32 or radio, particularly:
If be navigation command, then system control chip sends instruction to the DVD decode system, as being the navigation video disc in the DVD navigation video disc player 31, DVD decode system reporting system control chip, navigational system is under the control of system control chip, receive navigation data from the DVD decode system, export the navigating audio signal to the audio frequency handover module as calculated, the vision signal of will navigating exports video frequency switching module to; If video disc is the amusement video disc, DVD decode system reporting system control chip, and under the control of system control chip, export entertainment audio signal to the audio frequency handover module, export the entertainment video signal to video frequency switching module.
It is to be noted, the navigational system of present embodiment is under the normal situation of route or travel by vehicle, the navigation information that provides according to DVD player just can navigate, but when vehicle operating departs from navigation direction, only the information according to the navigation video disc will produce deviation, this moment, system can be used in combination the mode of satnav, redefined the residing correct orientation of vehicle, and recomputated navigation data according to positioning result.
If user's input is the amusement order, system control chip will be according to concrete AM/FM, DVD/VCD/CD Play command mode, send steering order to corresponding radio receiver module, amusement video disc player 32 interfaces, described radio, amusement video disc player 32 interfaces arrive the audio frequency handover module according to control command with audio signal output, export vision signal to the vision signal handover module.
Each module interface circuit figure of the embodiment of the invention please refer to Fig. 1 to shown in Figure 6.Wherein, the trend of the input/output signal of each interface circuit can be with reference to this signal name and subsequent numeral among the figure, the corresponding page number of this numeral Figure of description.Just the signal of respective name is connected in the corresponding page number of this signal and Figure of description.For example, the pin one 1 of VU8 connects signal " IRDATB 4 " among Fig. 5, represents that the signal " IRDATB " among the 4th page of Fig. 4 of itself and Figure of description links to each other, and promptly links to each other with the pin 8 of JG1 among Fig. 4.Therefore the signal trend of each interface is no longer repeated in instructions among the figure.
Below be the operation instructions of this system:
One. system start-up and off-mode
1. system start-up flow process
System start-up → show navigator instrument start-up picture → enter last user job pattern → use for the first time in this way then enters navigation or DVD mode of operation.
2. off-mode
Off-mode refers to ACC ON and the state of system closedown.Show date and the time this moment.
| 2003-05-07?WEDNESDAY |
| 2:15?PM |
Date and time can be adjusted by face version or telepilot.
ENTER: enter (continuing)/withdraw from the time on date to adjust program by more than 2 seconds.
↑: increase progressively the date time figure.
↓: the date time figure successively decreases.
←: the slider position that moves to left switches to an adjustment project.
→: the slider position that moves to right switches to next adjustment project.
Surpass inoperation in 10 seconds, withdraw from the time on date and adjust program, and confirm to have changed content.
Two. mode of operation
1. total following several modes: FM, AM, NAVIGATION, PLAYER, CHANGER after each mode switch, is presented at the title (full name as previously mentioned) of present mode 10 seconds of the upper left corner of screen.
2. mode switch:
Switched by the SOURCE key on the panel, order is:
1. insert the DVD/VCD/CD/MP3 video disc in the host driver, system enters the PLAYER pattern automatically.
During the PLAYER pattern, if no dish answers the display reminding statement not have dish;
2. under the PLAYER pattern,, should enter the NAVIGATION pattern if be the map dish in the host driver
Three. the definition of the interface/menus under each mode of operation
(1) FM and AM
1. all amounts that can regulate have:
(1). audio: left and right sides balance;
Anterior-posterior balance;
3-D audio (ON/OFF)
(2). tonequality: bass is regulated
Middle pitch is regulated
High pitch is regulated
(3). volume: volume is regulated
(4). the search of channel automatic/hand
Further operation is as follows:
" ↑ ↓ " key moves/selects each menu item, and the background of selecteed menu item is by highlight.
Menu item has two classes, and the one, the order class, as " automatic channel search ", another kind of in order to select parameter by " Enter ", can be made as the 3D audio and open or close.
" ← → " key is in order to regulate the numerical value of selected parameter, and " ← " lowers, and " → " increases.
Attention all can change on/off for the setting of on/off with " ← " or " → ".
By " EASCAPE " key, system is quiet immediately under the normal play state, and the upper right corner shows quiet state, otherwise this does not capablely show;
Occur by menu behind menu key, by a menu key or not operation in 20 seconds, menu disappears again.
Automatically search: to successively decrease direction or begin automatic search to the frequency increments direction of frequency, whenever find a platform by " ← ", store in order automatically by " → ", the search back backtrack menu automatically that finishes, and play first and stored the radio station.
Manual search: switch storage platform number by " ↑ ↓ " key, by " ← " to frequency successively decrease direction or by " → " to the frequency increments direction begin the search, find a platform, search can stop and beginning playing this content automatically, this moment screen display " storage is please by "enter" key" ", by " Enter " key, this frequency can be stored in the platform number on the left side, number adds 1 automatically with the backstage.Again by " ← " to successively decrease direction or begin to search for next platform by " → " to the frequency increments direction, so circulation of frequency.After manual search finishes, return previous menu by " ESC ".
2. radio storage of channel switching:
With "+/-" key on the panel: "+" key upwards switches, and "-" key switches downwards.
3. radio channels is sought at random:
, begin to play after finding a platform to successively decrease direction or begin to seek to the frequency increments direction of frequency by " ↓ " by " ↑ ".The frequency trim employing " ← → " key.Picture is with the radio key frame, and display frequency changes thereupon in the searching process.Display station number not during broadcast.
4. master volume is regulated:
Regulate with panel " VOLUME " knob: the volume that turns clockwise increases, and inhour reduces.
(2) NAVIGATION
1. press " navigation " key in all patterns of mode switch shown in 22, or insert the map dish, system enters navigation mode.If this moment is no dish or be not the map dish, then screen display information in the host driver:
2. in the navigation mode, press " SRC " key, system display mode conversion picture in order to whether maloperation of prompting user, when the user determines to press other patterns, withdraws from navigation mode again and enters user-selected pattern.
3. master volume is regulated: regulate with panel " VOLUME " knob: the volume that turns clockwise increases, and inhour reduces.
(3) PLAYER
1. all amounts that can regulate have:
(1). audio: left and right sides balance:
Anterior-posterior balance:
3D audio (ON/OFF)
(2). tonequality: bass is regulated
Middle pitch is regulated
High pitch is regulated
(3). volume: volume is regulated
(4). the search of channel automatic/hand
(5). visual image quality is regulated: brightness, colourity.
2. audio/tonequality/volume is regulated menu (being breathed out by " MENU " key on the panel)
Control is with FM and AM
3. master volume is regulated:
Regulate with panel " VOLUME " knob: the volume that turns clockwise increases, and inhour reduces.
4.DVD the special function of player:
Enter the special function menu of DVD player by set key on " LOCATION " key on the panel or the telepilot.
5. play, suspend and stop
By " ENTER " key play content, suspend play content by " ENTER " key once more, begin to play from time-out by " ENTER " key more subsequently.Stop the content to be play by " LOCATION " key.
When DVD playing back, stop the content of being play and enter the special function menu of DVD by " LOCATION " key.
6. F.F., rewind down and cursor key
Under broadcast state, be fast-forward to next fragment (song) by "+" key, fall back on last fragment (song) soon by "-" key.
In the special function menu of DVD, come moving cursor by " ↑ ↓ ← → " key, confirm selected content by " ENTER " key.
7.CD/MP3
Work as CD, HDCD, or after the MP3 video disc put into, tone channel began to broadcast, picture is as shown below, and panel and remote control "+/-" key may command enters next song, a last song.
(4) CHANGER
1. all amounts that can regulate have:
(1). audio: left and right sides balance:
Anterior-posterior balance:
3D audio (ON/OFF)
(2). tonequality: bass is regulated
Middle pitch is regulated
High pitch is regulated
(3). volume: volume is regulated
(4). the search of channel automatic/hand
(5). visual image quality is regulated: brightness, colourity.
2. regulate menu (breathing out) by " MENU " key on the panel
Control is with FM and AM
3. master volume is regulated:
Regulate with panel " VOLUME " knob: the volume that turns clockwise increases, and inhour reduces.
4. disk-exchanging function:
Press " ↑ " key on the panel, change last dish and broadcast.If be first dish, then change last dish; Press " ↓ " key on the panel, change a dish and broadcast.If be last dish, then change first dish.
5. play, suspend and stop
By " ENTER " key play content, suspend play content by " ENTER " key once more, begin to play from time-out by " ENTER " key more subsequently.Stop the content to be play by " LOCATION " key.
6. F.F., rewind down key
Under broadcast state, be fast-forward to next fragment (song) by "+" key, fall back on last fragment (song) soon by "-" key.
7.CD/MP3
Work as CD, after the MP3 video disc was put into, tone channel began to play, and panel and remote control "+/-" key may command enters next song, a last song.
(5) phone hands-free (RING ON)
The hands-free phone bell ring, the main frame power amplifier is quiet, and screen display " MUTE " recovers power amplifier after receiving calls and finishing automatically.
What more than illustrate is the preferred embodiments of the present invention, those skilled in the art will appreciate that the variation on any form and the details all is fine in the spirit and scope that do not depart from the qualification of claim of the present invention and equivalent scope thereof.
Claims (8)
1. a car borne GPS navigation, entertainment systems is characterized in that, comprising: system control chip, navigational system, the first video disc playing device (31), the second video disc playing device (32), input media, audio frequency handover module, video frequency switching module, audio output device, video output device; The input end of described system control chip connects the output terminal of described input media and the described first video disc playing device (31) respectively, the output terminal of described system control chip connects described navigational system respectively, the first video disc playing device (31), the second video disc playing device (32), the input end of audio frequency handover module and video frequency switching module, the input end of described navigational system connects the output terminal of the described first video disc playing device (31), the output terminal of described navigational system, the output terminal of the first video disc playing device (31), the output terminal of the second video disc playing device (32) connects the input end of audio frequency handover module and video frequency switching module respectively, described audio frequency handover module output terminal connects audio output device, and the output terminal of video frequency switching module connects video output device.
2. car borne GPS navigation according to claim 5, entertainment systems is characterized in that described car borne GPS navigation, entertainment systems also comprise a radio, its input end connected system control chip, and output terminal connects the audio frequency handover module.
3. car borne GPS navigation according to claim 2, entertainment systems, it is characterized in that, described system control chip receives the user instruction that input media transmits, if navigation command, system control chip difference navigation system and audio frequency, video switching device output control command, navigational system receives navigation data from the storage medium of the first video disc playing device (31), export navigating audio, vision signal respectively to audio frequency, video frequency switching module as calculated; If amusement video disc play command, system control chip is respectively to the second video disc playing device (32), the audio frequency handover module, video frequency switching module output control command, the second video disc playing device (32) is respectively to the audio frequency handover module, video frequency switching module output entertainment audio, the video entertainment signal, if radio order, system control chip is respectively to radio, audio frequency handover module output control command, the radio interface is to audio frequency handover module output audio signal, the audio frequency handover module exports described navigating audio signal or entertainment audio signal switching to audio output device, and video frequency switching module exports described navigation vision signal or the switching of entertainment video signal to video output device.
4. car borne GPS navigation according to claim 3, entertainment systems, it is characterized in that, also comprise the satnav receiving trap, be used for when vehicle ' departs from navigation way, system control chip is located the satellite location data that receiving trap receives vehicle via satellite, reorientating vehicle heading, and calculate navigation way.
5. car borne GPS navigation according to claim 1, entertainment systems is characterized in that described audio output device comprises a digital power amplifier.
6. car borne GPS navigation according to claim 1, entertainment systems, it is characterized in that, the described first video disc playing device (31) is a DVD player, it has DVD decode system and DVD player core, this DVD decode system is decoded to the data of described DVD player core storage medium, when storage medium is navigation data according to the order of system control chip, DVD decode system reporting system control chip, and export data to navigational system; When storage medium is recreation data, DVD decode system reporting system control chip, and export picture signal to video frequency switching module, with audio signal output to the audio frequency handover module.
7. car borne GPS navigation according to claim 7, entertainment systems is characterized in that, described system control chip is by control audio, video frequency switching module, with the audio frequency that in time automaticallyes switch, vision signal.
8. according to any claim among the claim 1-7, it is characterized in that described input media is the display screen or the telepilot of a touch display screen, band button.
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|---|---|---|---|
| CN 200520001718 CN2800428Y (en) | 2005-01-26 | 2005-01-26 | Vehicle-mounted GPS navigation, recreation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520001718 CN2800428Y (en) | 2005-01-26 | 2005-01-26 | Vehicle-mounted GPS navigation, recreation system |
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|---|---|
| CN2800428Y true CN2800428Y (en) | 2006-07-26 |
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| CN 200520001718 Expired - Fee Related CN2800428Y (en) | 2005-01-26 | 2005-01-26 | Vehicle-mounted GPS navigation, recreation system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123797A (en) * | 2011-11-21 | 2013-05-29 | 上海博泰悦臻网络技术服务有限公司 | Vehicular audio playing system and vehicular audio playing method |
| CN103456337A (en) * | 2012-05-28 | 2013-12-18 | 联发科技（新加坡）私人有限公司 | Control method of media player of vehicle and navigation multimedia system |
| CN103593241A (en) * | 2013-11-19 | 2014-02-19 | 中标软件有限公司 | Android vehicle-mounted system and application program fast switching method thereof |
| CN103686546A (en) * | 2013-12-13 | 2014-03-26 | 大连现代高技术集团有限公司 | Method for controlling multichannel sound distributing and switching of vehicle-mounted terminal |
| CN108021351A (en) * | 2017-12-04 | 2018-05-11 | 子歌教育机器人（深圳）有限公司 | The language play back system and intelligent robot of robot |
| WO2021232726A1 (en) * | 2020-05-22 | 2021-11-25 | 百度在线网络技术（北京）有限公司 | Navigation audio playback method, apparatus and device, and computer storage medium |
-
2005
- 2005-01-26 CN CN 200520001718 patent/CN2800428Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123797A (en) * | 2011-11-21 | 2013-05-29 | 上海博泰悦臻网络技术服务有限公司 | Vehicular audio playing system and vehicular audio playing method |
| CN103456337A (en) * | 2012-05-28 | 2013-12-18 | 联发科技（新加坡）私人有限公司 | Control method of media player of vehicle and navigation multimedia system |
| CN103456337B (en) * | 2012-05-28 | 2016-02-24 | 杰发科技（合肥）有限公司 | A kind of control method of apparatus for media playing of the vehicles and navigation multimedia system |
| CN103593241A (en) * | 2013-11-19 | 2014-02-19 | 中标软件有限公司 | Android vehicle-mounted system and application program fast switching method thereof |
| CN103686546A (en) * | 2013-12-13 | 2014-03-26 | 大连现代高技术集团有限公司 | Method for controlling multichannel sound distributing and switching of vehicle-mounted terminal |
| CN108021351A (en) * | 2017-12-04 | 2018-05-11 | 子歌教育机器人（深圳）有限公司 | The language play back system and intelligent robot of robot |
| WO2021232726A1 (en) * | 2020-05-22 | 2021-11-25 | 百度在线网络技术（北京）有限公司 | Navigation audio playback method, apparatus and device, and computer storage medium |
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