CN208646752U - Multimedia playing apparatus - Google Patents

Abstract

The utility model discloses a kind of multimedia playing apparatus, which includes host and terminal, wherein the rear backrest of host insertion vehicle seat；Terminal and host detachable connection；Host includes controller, first communication module and the first multimedia process module；Terminal includes second communication module, the second multimedia processing apparatus；Controller is electrically connected with first communication module and the first multimedia process module respectively；Second communication module is electrically connected with the second multimedia processing apparatus；Controller is interacted by the communication connection that first communication module and second communication module are established with terminal；Multi-medium data to be played is carried out digital-to-analogue conversion by the first multimedia process module under the control of the controller, multi-medium data after conversion is transmitted to terminal by communicating to connect by controller, by the multi-medium data after the output conversion of the second multimedia processing apparatus, to play out.

Description

Multimedia playing device

Technical Field

The utility model relates to a mobile unit technical field, in particular to multimedia playing device.

Background

With the progress of the era, a new traffic transportation era has come. Nowadays, automobiles have spread over every family in china, and high-speed rails, airplanes and the like have become important transportation means for people to go out. Users need a simple vehicle and a mobile private space, and good audio and video experience in the vehicle can add a comfortable and smooth mood to the journey.

At present, most of vehicle-mounted multimedia playing devices on the market are undetachable main bodies fixed in a center control, a backseat user cannot directly click audio information to be played according to needs of the user, the differentiated use requirements of different users cannot be met, and personalized experience of the user is not facilitated.

How to optimize the structure of the multimedia playing device for the convenience of the user becomes a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

For solving the relevant technical problem who exists, the embodiment of the utility model provides a mainly provide a multimedia playing device, through optimizing multimedia playing device's structure, convenience of customers uses, improves user experience.

The embodiment of the utility model provides a technical scheme is so realized:

the embodiment of the utility model provides a multimedia playing device, multimedia playing device includes: a host and a terminal; wherein the host is embedded in a back rest of a vehicle seat; the terminal is detachably connected with the host; the host comprises a controller, a first communication module and a first multimedia processing module; the terminal includes: the second communication module and the second multimedia processing device; the controller is electrically connected with the first communication module and the first multimedia processing module respectively; the second communication module is electrically connected with the second multimedia processing device; the controller interacts with the terminal through the communication connection established by the first communication module and the second communication module; the first multimedia processing module performs digital-to-analog conversion on multimedia data to be played under the control of the controller, the controller transmits the converted multimedia data to the terminal through the communication connection, and the second multimedia processing device outputs the converted multimedia data for playing; the multimedia data to be played is determined by operating the second multimedia processing device.

In the above scheme, the main machine is detachably connected with the rear backrest of the vehicle seat.

In the above scheme, the rear backrest of the vehicle seat is provided with a groove, and the host is embedded into the groove.

In the above scheme, a connector is arranged on the housing of the host, a plug is arranged on the housing of the terminal, and the plug is inserted into the connector to realize detachable connection.

In the above scheme, a first data transmission port is arranged in the connection port, and the first data transmission port is electrically connected with the controller; a second data transmission port is arranged in the plug and is electrically connected with the second multimedia processing device;

after the plug is inserted into the connecting port, the second data transmission port is contacted with the first data transmission port, and the host and the terminal can realize wired communication.

In the above scheme, the host further includes a memory, and the memory is electrically connected to the controller.

In the above scheme, the host further includes a first peripheral interface, and the first peripheral interface is electrically connected to the controller;

and/or the host further comprises a third communication module, and the third communication module is electrically connected with the controller.

In the above scheme, the first multimedia processing module comprises an optical drive and a decoder electrically connected with the optical drive; after the terminal is detachably connected with the host, the terminal is fixed on the host and covers the host;

and a positioning groove for mounting the optical disk is arranged on the surface of the host contacted with the terminal.

In the above scheme, the second multimedia processing device includes a speaker, a display driving circuit and a display screen, the display driving circuit is electrically connected to the display screen, and both the speaker and the display driving circuit are electrically connected to the second communication module.

In the above scheme, the terminal further includes a second external interface, and the second external interface is electrically connected to the second communication module.

In the above scheme, the host further includes a first power supply, and/or the terminal further includes a second power supply, and the first power supply supplies power to the host, and/or the second power supply supplies power to the terminal.

In the above scheme, the corresponding device further includes a power transmission device that charges the corresponding power supply.

In the above scheme, after the terminal is detachably connected with the host, the terminal is electrically connected with the host through the formed connection, and the second power supply of the terminal can be charged through the first power supply of the host connected with the terminal through the electric power.

The embodiment of the utility model provides a multimedia playing device, terminal and host computer are detachable to be connected, when the user of vehicle back seat used, can separate terminal and host computer, put the terminal in convenient position (for example on hand) and use, confirm the multimedia data that wait to broadcast through the terminal, after carrying out relevant processing to the multimedia data that wait to broadcast confirmed by the host computer, the multimedia data output is realized through the terminal again, because terminal and host computer detachable connection, multimedia playing device can supply the user to use independently like this, improve user experience; moreover, when the user uses the terminal, the terminal can be placed at a position with a good visual angle for use, so that the user operation can be facilitated, and the user experience is further improved.

Additionally, the embodiment of the utility model provides a multimedia playing device all sets up most hardware module inside the host computer like controller, first multimedia processing module etc to with the back of host computer embedding vehicle seat, and the terminal is then arranged in to second multimedia processing device, like this, the terminal can set to light, thin, little terminal, and convenience of customers uses, further promotes user experience.

Drawings

Fig. 1 is a schematic structural diagram of a multimedia playing device according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of a multimedia player according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a multimedia playing apparatus according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a first multimedia processing module according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

Currently, there are three main ways for a car audio playing device:

in the first mode, the FM music is passive listening music, FM frequency waves with the frequency within 88.5MHz-108.0MHz are generated by an FM radio frequency unit, and the vehicle-mounted audio receiving equipment receives the frequency waves, amplifies the frequency wave signals and converts the frequency wave signals into audio signals, so that the on-line music listening is realized. Although the mode has mature technology and low use cost, FM music is passively listened to, a user has no right of independently selecting audio tracks, the compression rate is quite high, the traditional FM sound quality is 98Kbps, the audio quality is poor, and the playing effect of the existing vehicle-mounted audio playing device is greatly restricted.

The second mode is that the vehicle MP3 product is a fashion product in modern times, and is pursued and loved by many sound fever friends at present. Gradually, remote control type vehicle-mounted MP3, electric vehicle MP3, and the like start to replace the conventional MP 3. It is also called audio converter, wireless emitter of vehicle MP3 or vehicle audio partner MP3, it can form vehicle MP3 audio system with common MP3 player. The vehicle MP3 can realize that the user can change the playing music according to the preference. However, the user is first required to download the song to memory and then transfer it from memory to the MP3 player. The above process needs to be performed through relatively complicated operations, a user needs to have certain computer knowledge, especially when a large number of songs need to be downloaded, the process is very monotonous and complicated, and patience and time are needed if a high-quality audio file needs to be found.

In the third mode, although Compact Disc (CD) and Mini Disc (MD) players can achieve high-quality music playing, and save time, with the development of digital audio, it is difficult to find a CD or mini Disc, and there is a certain lag in selling and distributing the CD and MD players, which cannot meet the demand of people for enjoying new music.

Obviously, the existing vehicle-mounted music playing modes have certain limitations and disadvantages, and users cannot conveniently enjoy high-quality music.

Based on this, the related art provides a vehicle-mounted audio playing device, a user can operate a touch screen and a key according to own preference to select a corresponding song or a song type, the vehicle-mounted audio playing device accesses a related music website through a built-in fourth generation mobile communication (4G) module, the music website transmits an audio file to the device, and the audio file is output through an auxiliary interface (AUX interface) after being coded and decoded by the playing device, so that high-quality music online appreciation is realized.

As can be seen from the above description, in the related art, the backseat user cannot directly click the audio information to be played, and cannot meet the differentiated use requirements of different users.

Based on this, the utility model provides a multimedia playing device contains host computer and the terminal that can dismantle, and is fixed in the back behind the host computer embedding vehicle seat, and the terminal part mainly contains audio video module and can freely dismantle with the host computer, supplies back row user independent operation to use, and the terminal carries out the communication with the host computer simultaneously, and the user operates on the terminal to accomplish the broadcast on the terminal, make things convenient for the back seat user to use.

Referring to fig. 1 and 2, the present invention provides a multimedia playing device, which includes a host 2 and a terminal 3; wherein the main body 2 is embedded in the rear backrest 1 of the vehicle seat; the terminal 3 is detachably connected with the host 2.

During practical application, the terminal 3 can be specifically implemented as a handheld terminal, when the multimedia playing device is used, a user can put the terminal 3 on hand for use, the use visual angle is better at the moment, the user operation is facilitated, and the user experience is improved.

Wherein, referring to fig. 3, the host 2 includes a controller 210, a first communication module 211, and a first multimedia processing module 212; the terminal 3 includes: a second communication module 310, a second multimedia processing device 311; the controller 210 is electrically connected to the first communication module 211 and the first multimedia processing module 212, respectively; the second communication module 310 is electrically connected with the second multimedia processing device 311; the controller 210 interacts with the terminal 3 through the communication connection established by the first communication module 211 and the second communication module 310; the first multimedia processing module 212 performs digital-to-analog conversion on the multimedia data to be played under the control of the controller 210, the controller 210 transmits the converted multimedia data to the terminal 3 through the communication connection, and the second multimedia processing device 311 outputs the converted multimedia data for playing; the multimedia data to be played is determined by operating the second multimedia processing device 311.

That is, the user operates the second multimedia processing apparatus 311, and the multimedia data to be played is determined by the user's selection.

In practical applications, the multimedia data may be audio data or video data.

The vehicle seat is a seat having a backrest, and the rear backrest 1 refers to a rear portion of the backrest, i.e., a backrest surface on a side facing a rear seat user. Here, the main body 2 is embedded in the rear back 1 of the vehicle seat, facilitating use by a rear seat user of the vehicle seat.

The specific working process of the multimedia playing device is as follows:

first, the user may determine the multimedia data to be played by operating (i.e. selecting) the second multimedia processing apparatus 311, for example, the user may directly select a song to be played, and at this time, the selected song is used as the multimedia data to be played; the user can also select a song type, and the multimedia data (including a plurality of multimedia data to be played) corresponding to the selected song type is used as the multimedia data to be played.

After the user selects the second multimedia processing device 311, the second multimedia processing device 311 transmits the determined multimedia data to be played to the host 2 through the communication connection established between the first communication module 211 and the second communication module 310.

Next, after the host 2 receives the multimedia data to be played, under the control of the controller 210, the first multimedia processing module 212 performs digital-to-analog conversion on the multimedia data to be played, and transmits the converted multimedia data to the terminal 3 through the communication connection established between the first communication module 211 and the second communication module 310.

Then, after the terminal 3 receives the converted multimedia data, the second multimedia processing device 311 outputs the converted multimedia data for playing.

When the multimedia data to be played is determined by the second multimedia processing apparatus 311, the second multimedia processing apparatus 311 may be an information receiving device capable of receiving information, such as a touch display screen.

Here, when the second multimedia processing apparatus 311 is embodied as a touch display screen, the detecting component of the touch display screen detects a state parameter change caused when a user touches the touch display screen, and the control component of the touch display screen determines multimedia data to be played according to the detected state parameter change.

The embodiment of the utility model provides a multimedia playing device, terminal 3 is connected with host computer 2 is detachable, when the back seat user uses, can separate terminal 3 and host computer 2, put terminal 3 in convenient position (for example on hand) and use (terminal 3 can understand to be handheld terminal), confirm the multimedia data that wait to play, after carrying out relevant processing to the confirmed multimedia data that wait to play by host computer 2, realize multimedia data output through terminal 3 again, because terminal 3 and host computer 2 detachable connections, therefore be different from the fixed user mode in traditional position, be different from the on-vehicle audio frequency and video playback devices of well accuse centralized control, because terminal 3 and host computer 2 detachable connections, multimedia playing device can supply the user to independently use like this, improve user experience; moreover, the user can use the terminal 3 at a position with a good visual angle when using the terminal, so that the user can operate conveniently, and the user experience is further improved.

Additionally, the embodiment of the utility model provides a multimedia playing device all sets up most hardware module, like controller 210, first multimedia processing module 212 etc. inside host computer 2 to with the back 1 of host computer 2 embedding vehicle seat, and terminal 3 is then arranged in to second multimedia processing device 311, like this, terminal 3 can set to light, thin, little terminal, and convenience of customers uses, further promotes user experience.

In practical applications, the first communication module 211 and the second communication module 310 may be wired communication modules or wireless communication modules.

In some embodiments, the main frame 2 is detachably connected to the rear backrest 1 of the vehicle seat, so as to meet the actual diversified application requirements and facilitate the installation and detachment of the main frame 2.

Specifically, the rear back 1 of the vehicle seat may be provided with a groove 10, and the main body 2 is embedded in the groove 10.

In practical applications, the side wall of the groove 10 may be inclined, that is, an angle between the side wall of the groove 10 and the bottom of the groove 10 is less than 90 °, and the size of the bottom of the groove 10 may be larger than the size of the upper end opening of the side wall of the groove 10, so as to reinforce the host 2 embedded in the groove 10 and prevent the host 2 from vibrating.

In some embodiments, as shown in fig. 2, a connection port 201 is disposed on the housing of the host 2, a plug 304 is disposed on the housing of the terminal 3, and the plug 304 is inserted into the connection port 201 to implement detachable connection, so that a user can conveniently pick and place the terminal 3, that is, the user can use the terminal 3 by placing the terminal in a hand or at any position away from the host 2, and can use the terminal 3 inserted into the host 2, thereby meeting the practical application requirements of the user.

In practical application, after the plug 304 is inserted into the connection port 201 to realize the detachable connection between the host 2 and the terminal 3, the wired communication between the host 2 and the terminal 3 can be realized through the connection, so as to realize data interaction, that is, after the plug 304 is inserted into the connection port 201, the wired communication connection can be performed between the host 2 and the terminal 3.

At this time, a first data transmission port may be disposed in the connection port 201, the first data transmission port is electrically connected to the controller 210, a second data transmission port is disposed in the plug 304, the second data transmission port is electrically connected to the second multimedia processing device 311, and after the plug 304 is inserted into the connection port 201, the second data transmission port contacts the first data transmission port, so that the host 2 and the terminal 3 can implement wired communication.

In addition, referring to fig. 3, the second data transmission port may also be electrically connected to a second external interface 312 of the terminal 3, the controller 210 transmits the converted multimedia data to the second external interface 312 through a wired communication connection established between the first data transmission port and the second data transmission port, and when the second external interface 312 is connected to an external device, the converted multimedia data may be output; alternatively, the terminal 3 may also transmit information received by the second peripheral interface 312, such as audio analog signals, multimedia data, etc., to the controller 210 through the wired communication connection established between the second data transmission port and the first data transmission port.

The first data transmission port may be a USB interface, and the second data transmission port may be a USB plug.

It should be noted that, in an actual application process, when a wired communication connection is established between the first data transmission port and the second data transmission port, it may be determined, as needed, that the communication connection between the host 2 and the terminal 3 is the communication connection established by using the first communication module 211 and the second communication module 310, or the wired communication connection established between the first data transmission port and the second data transmission port, for example, the controller 210 may determine which communication connection is used for interaction between the host 2 and the terminal 3 according to a current connection state and a control rule of the first data transmission port.

For example, the control rule may be to preferentially select the wired communication connection established between the first data transmission port and the second data transmission port, in which case, when the controller 210 determines that the current connection status of the first data transmission port is: when the first data transmission port contacts the second data transmission port, the controller 210 interacts with the terminal 3 through the wired communication connection established between the first data transmission port and the second data transmission port, for example, the converted multimedia data may be transmitted to the terminal 3 through the wired communication connection, and the second multimedia processing device 311 outputs the converted multimedia data for playing.

When the controller 210 determines that the current connection status of the first data transmission port is: when the first data transmission port is not in contact with the second data transmission port, at this time, the controller 210 interacts with the terminal 3 through the communication connection established by the first communication module 211 and the second communication module 310, for example, the converted multimedia data may be transmitted to the terminal 3, and the second multimedia processing device 311 outputs the converted multimedia data for playing.

In some embodiments, the host 2 may further include a memory 213, and the memory 213 is electrically connected to the controller 210. The memory 213 is used to store multimedia data for selection by the user.

In order to provide high-quality audio/video resources for users, in the embodiment of the present invention, the host 2 may further include a third communication module 216, the third communication module 216 is electrically connected to the controller 210, through the third communication module 216, the controller 210 may obtain multimedia data from an external device or a website, and the third communication module 216 may be a 4G module or a bluetooth module, etc. For example, the embodiment of the present invention provides a multimedia playing device accesses the relevant website through the 4G module, acquires various multimedia data, and transmits to the controller 210, the controller 201 can transmit various multimedia data to the terminal 3 through the communication connection established between the terminal 3 and the host 2, and the second multimedia processing device 311 outputs the various multimedia data for the user to select. For another example, the embodiment of the present invention provides a multimedia playing device performs communication connection with an intelligent mobile terminal of a user through a bluetooth module, acquires multimedia data stored in the intelligent mobile terminal, such as audio data or video data, and transmits the multimedia data to the controller 210, the controller 201 transmits the multimedia data stored in the intelligent mobile terminal to the terminal 3 through the communication connection established between the terminal 3 and the host 2, and the second multimedia processing device 311 outputs the multimedia data stored in the intelligent mobile terminal for the user to select and play the multimedia data in the intelligent mobile terminal of the user.

In some embodiments, as shown in fig. 3, the host 2 may further include a first peripheral interface 214, the first peripheral interface 214 is electrically connected to the controller 210, and the first peripheral interface 214 may include a key interface, a USB interface, an earphone interface, a microphone interface, and the like, and in practical applications, at least one of the interfaces may be selected to be disposed on the host 2, so as to facilitate the user to use and improve the user experience.

In some embodiments, referring to fig. 2 and 4, the first multimedia processing module 212 may further include an optical drive 2122 and a decoder 2123 electrically connected to the optical drive 2122; after the terminal 3 is detachably connected with the host 2, the terminal 3 is fixed on the host 2, and the terminal 3 covers the host 2; the surface of the host 2 contacting the terminals 3 is provided with a positioning groove 200 for mounting an optical disc. The positioning groove 200 of the optical drive 2122 is located on the outer surface of the host 2, and the outer surface is a contact surface when the host 2 and the terminal 3 are attached to each other, so that the safe use of the optical disc can be guaranteed, and the physical connection state between the host 2 and the terminal 3 is not affected.

The optical disc drive 2122 reads the multimedia data of the optical disc, transmits the multimedia data to the decoder 2123, and the decoder 2123 decodes the multimedia data of the optical disc under the control of the controller 210, and transmits the decoded multimedia data to the terminal 3 for playing in the wired communication manner or the wireless communication manner.

In practical applications, the optical disc drive 2122 may be a DVD drive, and correspondingly, the decoder 2123 is a DVD decoder.

Referring to fig. 4, the first multimedia processing module 212 may further include an audio port 2121 and a converter 2120, wherein the audio port 2121 is electrically connected to the converter 2120, the audio port 2121 is further electrically connected to the controller 210, and the converter 2120 is configured to perform digital-to-analog conversion or analog-to-digital conversion on multimedia data. For example, under the control of the controller 210, the converter 2120 performs analog-to-digital conversion on the acquired audio analog signal, and the controller 210 can determine the audio digital signal corresponding to the audio analog signal, recognize the voice information corresponding to the audio analog signal, and implement the function of voice recognition. The audio analog signal may be a signal collected when the first peripheral interface 214 of the host 2 is connected to the microphone.

In some embodiments, as shown in fig. 3, the second multimedia processing apparatus 311 may include a speaker 3111, a display driver circuit 3110 and a display screen 300, the display driver circuit 3110 is electrically connected to the display screen 300, and both the speaker 3111 and the display driver circuit 3110 are electrically connected to the second communication module 310. When the converted multimedia data is output, if the converted multimedia data includes an audio signal, the audio signal is output through the speaker 3111, so that the user can enjoy the sense of hearing. If the converted multimedia data includes video signals, the display driving circuit 3110 drives the display panel 300 to display the video signals.

In some embodiments, as shown in fig. 2 and 3, the terminal 3 may further include a second peripheral interface 312, and the second peripheral interface 312 is electrically connected to the second communication module 310. The second peripheral interface 312 can also be electrically connected to the second multimedia processing apparatus 311. The second peripheral interface 312 may include a key interface 301, a USB interface 302, an earphone interface 303, a microphone interface, and the like, and at least one of the interfaces may be selected to be disposed on the terminal 3 in practical applications.

The key interface 301 is connected to a plurality of function keys, so that a user can conveniently perform operation control. For example, when the user determines the multimedia data to be played through the second multimedia processing device 311, the second multimedia processing device 311 selects according to the pressing condition of the user on the key to determine the multimedia data to be played.

The USB interface 302 may be connected to an external device, such as an intelligent mobile terminal of a user, when the USB interface 302 is connected to the intelligent mobile terminal of the user and the second power supply 313 in the terminal 3 where the USB interface 302 is located supplies power to the terminal 3, the USB interface 302 may charge the intelligent mobile terminal, or read multimedia data stored in the intelligent mobile terminal through the USB interface 302 and transmit the multimedia data to the host 2 for storage by the first communication module 211, or transmit the read multimedia data stored in the intelligent mobile terminal to the second multimedia processing device 311 for playing.

The earphone interface 303 can be connected to an earphone to output the converted multimedia data, so that the user can use the multimedia data independently, and mutual influence among different users is avoided.

The microphone interface is used for being connected with a microphone, the microphone can collect voice information of a user and acquire an audio analog signal, and the collected audio analog signal is transmitted to the host computer 2. Under the control of the controller 210, the converter 2120 of the first multimedia processing module 212 performs analog-to-digital conversion on the acquired audio analog signal, and the controller 210 can determine the audio digital signal corresponding to the audio analog signal, recognize the voice information corresponding to the audio analog signal, and implement the function of voice recognition.

In some embodiments, the host 2 may further include a first power source 215, and the first power source 215 supplies power to the host 2, so as to ensure that the host 2 operates normally.

Certainly, in practical application, the terminal 3 may further include a second power supply 313, and the second power supply 313 supplies power to the terminal 3, so as to ensure that the terminal 3 works normally.

In some embodiments, the corresponding device of the multimedia playing apparatus of the present invention may further include a power transmission apparatus for charging the corresponding power source.

Specifically, the host 2 may further include a first power transmission device 217, and the first power transmission device 217 is electrically connected to the first power source 215. The first power transmission device 217 can charge the first power source 215 in a wired manner or a wireless manner. The first power transmission device 217 may be a device with a voltage conversion function, such as an adapter, which can charge the first power source 215 in a wired manner when the first power transmission device 217 is connected to an external power source. The first power transmission device 217 may be a wireless power transmission device, such as a wireless charging receiver, for sensing an ac signal transmitted by a transmitter on the vehicle and converting the ac signal into a voltage suitable for the first power source 215, so that the first power source 215 can be wirelessly charged when the ac signal is sensed by the first power transmission device 217.

The terminal 3 may further include a second power transmission device 314, the second power transmission device 314 is electrically connected to the second power supply 313, the second power transmission device 314 may be a wired power transmission device, or may be a wireless power transmission device, such as a wireless charging receiver, for sensing an ac signal transmitted by a transmitter on the first power transmission device 217 and converting the ac signal into a voltage adapted to the second power supply 313, so that when the ac signal is sensed by the second power transmission device 314, the second power supply 313 can be wirelessly charged.

In practical applications, after the terminal 3 and the host 2 are detachably connected, that is, after the plug 304 is inserted into the connection port 201, the terminal 3 and the host 2 can also form an electric connection, and the second power supply 313 of the terminal 3 can be charged by the first power supply 215 connected to the host 2.

It should be noted that, in the practical application, it may be determined that the terminal 2 charges the second power supply 313 of the terminal 3 through the power connection or the second power transmission device charges the second power supply 313 according to needs, for example, the controller 210 determines the charging mode of the second power supply 313 according to the current connection state and the control rule of the connection port 201 and the plug 304.

For example, the control rule is to preferentially select the terminal 2 to charge the second power supply 313 through the power connection, in which case when the controller 210 determines that the current connection state of the connection port 201 and the plug 304 is: when the plug 304 is inserted into the connection port 201, the host 2 selects to charge the terminal 3 through the power connection. Here, the connector 201 is provided with a port having a power transmission function and connected to the first power supply 215, and the plug 304 is provided with a port having a power transmission function and connected to the second power supply 313.

When the controller 210 determines that the current connection state of the connection port 201 and the plug 304 is: when the plug 304 is not inserted into the connection port 201, one implementation manner is: under the control of the controller 210, the first power transmission device 217 transmits an ac signal, and when the second power transmission device 314 senses the ac signal transmitted by the transmitter on the first power transmission device 217, the second power transmission device 314 wirelessly charges the terminal 3 with the detected ac signal. Of course, in actual use, the host 2 may not charge the second power supply 313, and in this case, when the second power transmission device 314 detects an ac signal from the outside, the detected ac signal may be used to charge the second power supply 313.

In some embodiments, the multimedia playing apparatus of the present invention further includes other functional modules, such as a power amplification module, connected to the speaker 3111, so as to improve output power and facilitate users' use.

It should be noted that the memory 213 in the host 2 may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories. The nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), or a Flash Memory (Flash Memory); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM, Double Data Synchronous Random Access Memory), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM, Enhanced Synchronous Dynamic Random Access Memory), Synchronous link Dynamic Random Access Memory (SLDRAM, Synchronous Dynamic Random Access Memory), Direct Memory bus (DRmb Access Memory, Random Access Memory). The memory described in embodiments of the present invention is intended to comprise, without being limited to, these and any other suitable types of memory.

In the description provided herein, numerous specific details are set forth. It can be understood, however, that embodiments of the invention may be practiced without these specific details. In some embodiments, methods, structures, and techniques have not been shown in detail in order not to obscure an understanding of this description.

It should be noted that: the embodiment of the utility model provides an between the technical scheme who records, under the condition of conflict, can make up wantonly.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims (13)

1. A multimedia playback apparatus, comprising: a host and a terminal; wherein,

the host is embedded in a rear backrest of a vehicle seat; the terminal is detachably connected with the host;

the host comprises a controller, a first communication module and a first multimedia processing module; the terminal includes: the second communication module and the second multimedia processing device;

the controller is electrically connected with the first communication module and the first multimedia processing module respectively;

the second communication module is electrically connected with the second multimedia processing device;

the controller interacts with the terminal through the communication connection established by the first communication module and the second communication module;

the first multimedia processing module performs digital-to-analog conversion on multimedia data to be played under the control of the controller, the controller transmits the converted multimedia data to the terminal through the communication connection, and the second multimedia processing device outputs the converted multimedia data for playing; the multimedia data to be played is determined by operating the second multimedia processing device.

2. The multimedia playback device of claim 1, wherein the host is removably connected to a back of the vehicle seat.

3. The multimedia playback device of claim 2, wherein a back of the vehicle seat is provided with a groove, and the host computer is embedded in the groove.

4. The multimedia playback apparatus of claim 1,

a connecting port is arranged on the shell of the host,

a plug is arranged on the outer shell of the terminal,

the plug is inserted into the connecting port to realize detachable connection.

5. The multimedia playback apparatus of claim 4,

a first data transmission port is arranged in the connecting port and is electrically connected with the controller; a second data transmission port is arranged in the plug and is electrically connected with the second multimedia processing device;

after the plug is inserted into the connecting port, the second data transmission port is contacted with the first data transmission port, and the host and the terminal can realize wired communication.

6. The multimedia playback apparatus of claim 1,

the host also includes a memory electrically connected to the controller.

7. The multimedia playback apparatus of claim 1,

the host further comprises a first peripheral interface which is electrically connected with the controller;

and/or the host further comprises a third communication module, and the third communication module is electrically connected with the controller.

8. The multimedia playback apparatus of claim 1,

the first multimedia processing module comprises an optical drive and a decoder electrically connected with the optical drive; after the terminal is detachably connected with the host, the terminal is fixed on the host and covers the host;

and a positioning groove for mounting the optical disk is arranged on the surface of the host contacted with the terminal.

9. The multimedia playback apparatus of claim 1,

the second multimedia processing device comprises a loudspeaker, a display driving circuit and a display screen,

the display driving circuit is electrically connected with the display screen,

the loudspeaker and the display driving circuit are electrically connected with the second communication module.

10. The multimedia playback apparatus of claim 1,

the terminal further comprises a second external interface, and the second external interface is electrically connected with the second communication module.

11. The multimedia playback apparatus of claim 1,

the host further comprises a first power supply that supplies power to the host,

and/or the terminal also comprises a second power supply which supplies power to the terminal.

12. The multimedia playback apparatus of claim 11, wherein the corresponding device further comprises a power transmission device for charging the corresponding power source.

13. The multimedia playback apparatus of claim 11, wherein after the terminal is detachably connected to the host, the terminal and the host form a power connection through the formed connection, and a first power supply connected to the host through the power connection can charge a second power supply of the terminal.