CN101221805A - Media connecting mechanism and system using the same - Google Patents
Media connecting mechanism and system using the same Download PDFInfo
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- CN101221805A CN101221805A CNA2007100019031A CN200710001903A CN101221805A CN 101221805 A CN101221805 A CN 101221805A CN A2007100019031 A CNA2007100019031 A CN A2007100019031A CN 200710001903 A CN200710001903 A CN 200710001903A CN 101221805 A CN101221805 A CN 101221805A
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Abstract
The invention provides a media connecting device and a system utilizing the medium connecting device. The media connecting device provided by the invention is taken as the medium between a media player and an audio unit, is in response to the manipulation of a user to the audio unit to control the media player, executes the USB packet processing to an audio signal reappearing in the media player and provides the audio signal packet for the audio unit so as to make the audio unit output sound. The audio unit with a USB host interface can be connected to the prior media player without changing the appearance by adopting the media connecting device. In addition, even under the condition of DRM content, the user can listen to the song bought before without supporting or buying an independent software again.
Description
Technical field
The present invention relates to a kind of medium attachment unit, this medium attachment unit is as the media between media player and the audio devices, in response to the user to the manipulation of audio devices and control media player, the sound signal of being reproduced by media player is carried out the USB packet transaction, and this sound signal grouping is offered audio devices so that can be from the audio devices output sound.
Background technology
Media player such as MP3 player or voice recorder is used widely, and these media players reproduce and the recording medium file.Fig. 1 is the functional block diagram of the configuration of schematically illustrated conventional media player.
Conventional media player 1 is equipped with the Nonvolatile memory devices 5 such as flash memory therein, thereby can be with the media file storage that receives from the external host device 7 such as PC by network memory storage 5.When module has been imported reproduction instruction, reading media file, then this media file is transferred to signal processor 6 from memory storage 5 by user interface (UI).Then, media player 1 is according to carrying out signal Processing such as the predetermined signal processing scheme of MPEG-1 audio layer 3.
In order to send and the receiving media file, host apparatus 7 and media player 1 have the transmission medium linkage function.Fig. 1 shows the example of using USB (USB (universal serial bus)).In the USB technology, when two devices were connected to each other, a device carrying out master control function was called usb host, and another device of carrying out driven function is called the USB device.In Fig. 1, host apparatus 7 is set to usb host, media player 1 is set to the USB device.Thus, host apparatus 7 comprises usb host, and media player 1 comprises the USB device.
About being used for the transmission medium of this purpose, except USB, IEEE1394 and WLAN are also provided.In addition, can realize therebetween connection by cable, connectivity port or wireless medium.When using IEEE 1394 or WLAN, can use and the notion different notion of main frame device.Under the situation of IEEE 1394, use peering structure, wherein, host apparatus 7 is set to the SBP2 starter, and media player 1 is set to the SBP2 target according to SBP2 (serial bus protocol 2) as upper-layer protocol.Therefore, in the transmission medium commonly used that comprises USB or IEEE 1394, can carry out the modeling that wherein host apparatus 7 is set to controller and media player 1 is set to target.
Along with popularizing of various media players, the consumer more and more wishes to listen to the song that is stored in the media player by the speaker system of AUtomobile audio frequency device or home audio device.For this reason, add the FM transfer function, so that transmit song by media renderer plays by specific FM frequency to the media player of routine.In addition, audio devices comes output audio signal by carry out frequency modulation under the FM receiving mode.In addition, the Aux line in the conventional audio devices extends and is connected to the receiver J-Horner of media player separately.
Similarly, along with popularizing of digital media technology, the consumer more and more wishes to play-over the digital content that is stored in the USB storage by the speaker system of AUtomobile audio frequency device or home audio device.For this reason, the patented claim that is entitled as " A MEDIAL PROCESSING DEVICE USING ANEXTERNAL STORAGE DEVICE " that existence is submitted to (Korean Patent Application No. 2003-21307) and announced (Korean Patent Registration number 403,376) on October 15th, 2003 on April 4th, 2002 by the applicant.According to this patent, audio devices comprises that the usb host interface is directly to read and to reproduce the content that is stored in the USB storage.
Owing to do not comprise the FM receiving function and only can connect that such as the class media player group of Apple i-POD therefore, if the interface of car audio is not set separately, it is conditional then using conventional scheme by special purpose interface.But the consumer still buys this media player.In addition, utilization factor is not high.
Recently, think that DRM is extremely important.Therefore, exist many with the situation of DRM content stores in media player or USB storage.When these DRM content delivery were installed to another, variety of issue and difficulty may appear.Therefore, even utilize external audio device, also wish in the media player of at first having registered these contents, to carry out and reproduce.
Summary of the invention
The purpose of this invention is to provide a kind of medium attachment unit, described medium attachment unit is as the media between media player and the audio devices, in response to the user to the manipulation of audio devices and control media player, the sound signal of being reproduced by media player is carried out the USB packet transaction, and this sound signal grouping is offered audio devices so that can be from the audio devices output sound.
To achieve these goals, the invention provides a kind of medium attachment unit as the media between media player and the audio devices, described medium attachment unit comprises: the media player connector, it comprises audio connector and Long-distance Control connector, described audio connector is connected to the audio sockets (described socket normally plug (being the convex connecting portion) can insert matrix connecting portion wherein) of described media player to receive from the simulated audio signal of described media player output, described Long-distance Control connector is connected to the Long-distance Control socket of described media player so that the device control signal about described media player to be provided, and wherein said media player is provided to the interface of this media player; A/D converter, it receives from the simulated audio signal of described media player output by described media player connector, and generates digital audio-frequency data by the A/D conversion process; The audio devices connector, it is connected to described audio devices to be provided to the interface of described audio devices by specific transmission medium; System controller, it divides into groups to the digital audio-frequency data that provides from described A/D converter according to transmission medium, by described audio devices connector the digital audio-frequency data grouping that generates is offered described audio devices so that described audio devices is exported the sound of simulated audio signal by the D/A conversion, handle the manipulation control data generates content as according to the packet of described transmission medium the time when providing by described audio devices connector from this manipulations control data analysis user manipulation by the user in the described audio devices, and generation about the corresponding intrument control signal of described media player this device control signal is offered described media player by described media player connector.
To achieve these goals, medium attachment unit according to the present invention is characterised in that described transmission medium is USB, and be that further described audio devices connector comprises USB connector, described USB connector is connected to the usb host interface of described audio devices by described USB, offer described audio devices with the grouping as the digital audio-frequency data of USB packet signal that will generate, and when receiving the device control signal that is used to control described media player from described audio devices, this device control signal is offered described system controller.
To achieve these goals, the invention provides a kind of medium connected system that comprises media player, audio devices and medium attachment unit, described medium connected system comprises: media player, it reproduces digital document with to audio sockets output simulated audio signal, and carries out the device control of himself according to the particular remote control data that provides by the Long-distance Control socket; Medium attachment unit, this medium attachment unit comprises: the media player connector, and it has the interface that is provided to described media player and corresponding to the audio connector of described audio sockets and corresponding to the Long-distance Control connector of described Long-distance Control socket; A/D converter, it receives simulated audio signal by described audio connector, and generates digital audio-frequency data by the A/D conversion process; The audio devices connector, it is connected to described audio devices so that interface to be provided by specific transmission medium; And system controller, it divides into groups to digital audio-frequency data according to transmission medium, by described audio devices connector the DAB grouping that generates is offered described audio devices, when the content of handling from described manipulation control data analysis as according to the packet of transmission medium the time from the manipulation control data of described audio devices is provided by described audio devices connector, and generate corresponding intrument control signal about described media player this device control signal is offered described media player by described Long-distance Control connector; And audio devices, this audio devices extracts digital audio-frequency data from the digital audio-frequency data grouping that is provided by described MAU, carry out the D/A conversion so that the sound of output simulated audio signal, handle control data when having imported from the user to generate when device is handled, and will handle control data by described audio devices connector and offer described medium attachment unit as packet according to transmission medium.
To achieve these goals, the invention provides a kind of medium attachment unit as the media between media player and the audio devices, described medium attachment unit comprises: the media player connector, its audio sockets that is connected to described media player is to receive from the simulated audio signal of described media player output, the Long-distance Control socket that is connected to described media player is with to described media player generator control signal, and is provided to the interface of described media player; A/D converter, it receives from the simulated audio signal of described media player output by described media player connector, and generates digital audio-frequency data by the A/D conversion process; System controller, it divides into groups to the digital audio-frequency data that is generated by described A/D converter according to transmission medium, from described audio devices receiving trap control data, the content of handling from device control data analytical equipment to be generating the corresponding intrument control signal about described media player, and will install control signal by described media player connector and offer described media player; With the audio devices connector, it is connected to described audio devices by specific transmission medium, will offer described audio devices by the digital audio-frequency data grouping that described system controller generates by described transmission medium, the conduct that receives described audio devices offered described system controller according to the manipulation control data of the packet of transmission medium should handle control data, and was provided to the interface of described audio devices.
To achieve these goals, medium attachment unit according to the present invention is characterised in that, described media player connector comprises: audio connector, and it is connected to the audio sockets of described media player, to receive from the simulated audio signal of described media player output; And the Long-distance Control connector, it is connected to the Long-distance Control socket of described media player, with to described media player generator control signal.
To achieve these goals, the invention provides a kind of medium connected system that comprises media player, audio devices and medium attachment unit, described medium connected system comprises: media player, it reproduces digital document so that simulated audio signal is outputed to audio sockets, and carries out the device control of himself according to the particular remote control data that provides by the Long-distance Control socket; Medium attachment unit, this medium attachment unit comprises: the media player connector, its audio sockets that is connected to described media player is to receive from the simulated audio signal of described media player output, the Long-distance Control socket that is connected to described media player is with to described media player generator control signal, and is provided to the interface of described media player; A/D converter, it receives from the simulated audio signal of described media player output by described media player connector, and generates digital audio and video signals by the A/D conversion process; System controller, it divides into groups to the digital audio-frequency data that is generated by described A/D converter according to transmission medium, receive the manipulation control data from described audio devices, from handling content that the control data analytical equipment handles generating corresponding intrument control signal, and will install control signal by described media player connector and offer described media player about described media player; With the audio devices connector, it is connected to described audio devices will offer described audio devices by the digital audio-frequency data grouping that described system controller generates by described transmission medium by specific transmission medium, the conduct that receives described audio devices offered described system controller according to the manipulation control data of the packet of transmission medium should handle control data, and was provided to the interface of described audio devices; And audio devices, this audio devices extracts digital audio-frequency data from the digital audio-frequency data grouping that is provided by described MAU, carry out the D/A conversion so that the sound of output simulated audio signal, handle control data when having imported from the user to generate when device is handled, and will handle control data by described audio devices connector and offer described medium attachment unit as packet according to transmission medium.
To achieve these goals, medium connected system according to the present invention is characterised in that, the described media player connector of described medium attachment unit comprises: audio connector, it is connected to the audio sockets of described media player, to receive from the simulated audio signal of described media player output; And the Long-distance Control connector, it is connected to the Long-distance Control socket of described media player, with to described media player generator control signal.
Description of drawings
In conjunction with the accompanying drawings, according to following description to embodiment, these and/or other aspect and the purpose of this overall inventive concept will become apparent and be more readily understood, in the accompanying drawings:
Fig. 1 is the functional block diagram of the configuration of the conventional media player of illustration schematically;
Fig. 2 is the functional block diagram of illustration according to the configuration of the media player of the embodiment of the invention;
Fig. 3 illustrates and wherein uses the example of car audio as audio devices, with the connection of explanation according to the medium attachment unit of the embodiment of the invention; And
Fig. 4 illustrates the reference diagram that wherein uses according to the state of the medium attachment unit of the embodiment of the invention.
Embodiment
To describe the embodiment of this overall inventive concept now in detail, its example illustrates in the accompanying drawings, wherein represents identical parts with identical label in the whole text.These embodiment are described below this overall inventive concept are described with the reference accompanying drawing.
Hereinafter, describe in detail according to the medium attachment unit of the embodiment of the invention with reference to the accompanying drawings and use the system of this medium attachment unit.
Fig. 2 is the functional block diagram of illustration according to the configuration of the medium attachment unit of the embodiment of the invention.Fig. 3 illustrates and wherein uses the example of car audio as audio devices, with the connection of explanation according to the medium attachment unit of the embodiment of the invention.Fig. 4 is the reference diagram that the state of the medium attachment unit that wherein uses Fig. 3 is shown.
As shown in Figure 2, medium attachment unit 100 is connected between media player 10 and the audio devices 20 to be used as media therebetween.Medium attachment unit 100 comprises media player connector 110, A/D converter 120, system controller 130 and audio devices connector 140.
As shown in Figure 3, media player connector 110 comprises headset connector 111 and Long-distance Control connector 112.Headset connector 111 is connected to the receiver J-Horner of media player 10, to receive simulated audio signal.Long-distance Control connector 112 is connected to the Long-distance Control socket 11 of media player 10, with to media player 10 output unit control signals.In this case, as described below, the device control signal provides from audio devices 20.
Determine the shape of media player connector 110 according to the structure of media player 10.For example, when media player 10 is set to receiver J-Horner and Long-distance Control socket 11 (as shown in Figure 3) separated from one another, media player connector 110 is configured to headset connector 111 and Long-distance Control connector 112 is separated from one another to correspond respectively to receiver J-Horner and Long-distance Control socket 11.The shape of the socket of receiver J-Horner shown in Fig. 3 and Long-distance Control socket 11 expression Apple i-POD.
A/D converter 120 is converted to digital audio-frequency data with simulated audio signal, and described simulated audio signal sends by media player connector 110 from media player 10.Then, the digital audio-frequency data after A/D converter 120 will be changed offers system controller 130.At this moment, the conversion that is generated digital audio-frequency data by A/D converter 120 being used to of carrying out is that typical mould/number conversion is handled, and has wherein considered to handle load.
System control module 130 will be grouped into the USB form from the digital audio-frequency data that A/D converter 120 provides.Then, system control module 130 offers audio devices 20 with the USB grouping that generates by audio devices connector 140.
Thereby the output at media player 10 is sent under the state of audio devices 20 output sounds by MAU 100, if the user carries out specific manipulation by the user interface of audio devices 20, then in media player 10, carry out corresponding with it device control.Hereinafter, this processing will be described.
In response to user's manipulation, audio devices 20 generates handles control data.Grouping sends to medium attachment unit 100 by audio devices connector 140 as USB to handle control data.130 pairs of manipulations of system controller are analyzed, thereby generate the device control signal about media player 10.The device control signal that generates is sent to media player 10 by media player connector 110.By such processing, in media player 10, carry out the device control of handling according to the user.
Described manipulation represents to control the signal of the typical operation (as on, function of search, selection function, playing function or F.F./rewind function) of media player 10.
When the sound signal of exporting from media player 10 was handled, system controller 130 was grouped into the USB form with digital audio-frequency data, and the USB grouping that generates is offered audio devices 20.In order to carry out this operation, system controller 130 is input to specific register with digital audio-frequency data, according to triggering to handle the USB grouping is offered audio devices 20 then.
Audio devices connector 140 is connected to the usb host interface 21 of audio devices 20 by the scheduled transmission media such as USB connector, so that the communication that utilizes the usb signal grouping to be provided.
As mentioned above, medium attachment unit of the present invention uses the example of known USB transmission medium as transmission medium.Audio devices connector 140 comprises USB connector 141, and this USB connector 141 is connected to the usb host interface 21 of audio devices 20 the usb signal grouping is offered the operation information of audio devices 20 and receiving media player 10 by the USB transmission medium.
Fig. 4 illustrates the reference diagram that wherein uses according to the state of the medium attachment unit of the embodiment of the invention.Under this state, the headset connector 111 of medium attachment unit 100 assembles and combination mutually with the Long-distance Control connector 112 and the receiver J-Horner/Long-distance Control socket 11 of media player 10.In addition, the USB connector 141 of MAU 100 is assembled to the usb host interface 21 of audio devices 20.
Therefore, by using the usb communication relaying of medium attachment unit 100, the user can be by controlling media player 10 to the push-button control of audio devices 20.In addition, the user can listen to the sound according to the sound signal of exporting from media player 10 by the loudspeaker SP of audio devices 20.
The audio process of audio devices 20 obtains digital audio and video signals from the digital audio and video signals data that sent as the USB grouping by medium attachment unit 100, and by the D/A conversion this digital audio and video signals is converted to simulated audio signal, thus output sound.Thus, can reckon with that the figure place that A/D conversion and D/A change has significant effects to sound quality.
According to medium attachment unit of the present invention, medium attachment unit is used as the media between media player and the audio devices, thereby according to the user media player is controlled in the manipulation of audio devices.In addition, transmit the sound signal that to reproduce by media player by the USB packet transaction, thereby audio devices can output sound.
In addition, reproducing operation itself carries out in media player.Therefore, even under the situation of DRM content, the user also can appreciate the song of previous purchase, and does not need to support or buy again independent software.
In addition, owing in statu quo utilize the existing USB interface of audio devices,, perhaps do not need to install special purpose interface so do not need to change outward appearance.
Although illustrated and described several embodiment of this overall inventive concept, but it will be appreciated by those skilled in the art that, can make amendment to these embodiment under the situation of principle that does not break away from this overall inventive concept and spirit, the scope of this overall inventive concept is limited by appended claims and equivalent thereof.
Claims (7)
1. medium attachment unit as the media between media player and the audio devices, described medium attachment unit comprises:
The media player connector, this media player connector comprises:
Audio connector, it is connected to the audio sockets of described media player, to receive from the simulated audio signal of described media player output; With
The Long-distance Control connector, it is connected to the Long-distance Control socket of described media player, so that the device control signal about described media player to be provided,
Wherein said media player is provided to the interface of this media player;
Analog to digital converter, it receives from the simulated audio signal of described media player output by described media player connector, and passes through analog-to-digital conversion process and generate digital audio-frequency data;
The audio devices connector, it is connected to described audio devices to be provided to the interface of described audio devices by specific transmission medium;
System controller, it divides into groups to the digital audio-frequency data that provides from described analog to digital converter according to described transmission medium, by described audio devices connector the digital audio-frequency data grouping that generates is offered described audio devices so that described audio devices is exported the sound of described simulated audio signal by digital-to-analog conversion, handle the manipulation control data generates content as according to the packet of described transmission medium the time when providing by described audio devices connector from this manipulations control data analysis user manipulation by the user in the described audio devices, and generation about the corresponding intrument control signal of described media player this device control signal is offered described media player by described media player connector.
2. medium attachment unit according to claim 1,
Wherein, described transmission medium is a USB (universal serial bus), and described audio devices connector comprises universal serial bus connector, described universal serial bus connector is connected to the universal serial bus host interface of described audio devices by described USB (universal serial bus), offer described audio devices with the grouping as the digital audio-frequency data of USB (universal serial bus) packet signal that will generate, and when receiving the device control signal that is used to control described media player from described audio devices, this device control signal is offered described system controller.
3. medium connected system that comprises media player, audio devices and medium attachment unit, described medium connected system comprises:
Media player, this media player reproduce digital document with to audio sockets output simulated audio signal, and carry out the device control of himself according to the particular remote control data that provides by the Long-distance Control socket;
Medium attachment unit, this medium attachment unit comprises:
The media player connector, its have provide for the interface of described media player and with described audio sockets corresponding audio connector and the Long-distance Control connector corresponding with described Long-distance Control socket;
Analog to digital converter, it receives simulated audio signal by described audio connector, and passes through analog-to-digital conversion process and generate digital audio-frequency data;
The audio devices connector, it is connected to described audio devices so that interface to be provided by specific transmission medium; With
System controller, it divides into groups to described digital audio-frequency data according to described transmission medium, by described audio devices connector the DAB grouping that generates is offered described audio devices, when the content of handling from described manipulation control data analysis as according to the packet of described transmission medium the time from the manipulation control data of described audio devices is provided by described audio devices connector, and generate corresponding intrument control signal about described media player this device control signal is offered described media player by described Long-distance Control connector; And
Audio devices, this audio devices extracts digital audio-frequency data from the digital audio-frequency data grouping that is provided by described MAU, carry out digital-to-analog conversion so that export the sound of described simulated audio signal, handle control data when having imported from the user to generate when device is handled, and described manipulation control data is offered described medium attachment unit as the packet according to described transmission medium by described audio devices connector.
4. medium attachment unit as the media between media player and the audio devices, described medium attachment unit comprises:
The media player connector, its audio sockets that is connected to described media player is to receive from the simulated audio signal of described media player output, the Long-distance Control socket that is connected to described media player is with to described media player generator control signal, and is provided to the interface of described media player;
Analog to digital converter, it receives from the simulated audio signal of described media player output by described media player connector, and passes through analog-to-digital conversion process and generate digital audio-frequency data;
System controller, it divides into groups to the digital audio-frequency data that is generated by described analog to digital converter according to transmission medium, from described audio devices receiving trap control data, the content of handling from described device control data analytical equipment to be generating the corresponding intrument control signal about described media player, and by described media player connector described device control signal offered described media player; And
The audio devices connector, it is connected to described audio devices will offer described audio devices by the digital audio-frequency data grouping that described system controller generates by described transmission medium by specific transmission medium, the conduct that receives described audio devices offered described system controller according to the manipulation control data of the packet of described transmission medium should handle control data, and was provided to the interface of described audio devices.
5. medium attachment unit according to claim 4,
Wherein, described media player connector comprises:
Audio connector, it is connected to the audio sockets of described media player, to receive from the simulated audio signal of described media player output; And
The Long-distance Control connector, it is connected to the Long-distance Control socket of described media player, with to described media player generator control signal.
6. medium connected system that comprises media player, audio devices and medium attachment unit, described medium connected system comprises:
Media player, it reproduces digital document so that simulated audio signal is outputed to audio sockets, and carries out the device control of himself according to the particular remote control data that provides by the Long-distance Control socket;
Medium attachment unit, this medium attachment unit comprises:
The media player connector, its audio sockets that is connected to described media player is to receive from the simulated audio signal of described media player output, the Long-distance Control socket that is connected to described media player is with to described media player generator control signal, and is provided to the interface of described media player;
Analog to digital converter, it receives from the simulated audio signal of described media player output by described media player connector, and passes through analog-to-digital conversion process and generate digital audio and video signals;
System controller, it divides into groups to the digital audio-frequency data that is generated by described analog to digital converter according to transmission medium, receive the manipulation control data from described audio devices, the content of handling from described manipulation control data analytical equipment to be generating the corresponding intrument control signal about described media player, and by described media player connector described device control signal offered described media player; With
The audio devices connector, it is connected to described audio devices will offer described audio devices by the digital audio-frequency data grouping that described system controller generates by described transmission medium by specific transmission medium, the conduct that receives described audio devices offered described system controller according to the manipulation control data of the packet of described transmission medium should handle control data, and was provided to the interface of described audio devices; And
Audio devices, this audio devices extracts digital audio-frequency data from the digital audio-frequency data grouping that is provided by described MAU, carry out digital-to-analog conversion so that export the sound of described simulated audio signal, handle control data when having imported from the user to generate when device is handled, and described manipulation control data is offered described medium attachment unit as the packet according to described transmission medium by described audio devices connector.
7. medium connected system according to claim 6,
Wherein, the media player connector of described medium attachment unit comprises:
Audio connector, it is connected to the audio sockets of described media player, to receive from the simulated audio signal of described media player output; And
The Long-distance Control connector, it is connected to the Long-distance Control socket of described media player, with to described media player generator control signal.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100019031A CN100545937C (en) | 2007-01-12 | 2007-01-12 | The system of medium attachment unit and this medium attachment unit of use |
| TW096101337A TWI321776B (en) | 2007-01-05 | 2007-01-12 | Media connect device, and system using the same |
| HK08111177.4A HK1119287A1 (en) | 2007-01-12 | 2008-10-09 | Media connect device,and system using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100019031A CN100545937C (en) | 2007-01-12 | 2007-01-12 | The system of medium attachment unit and this medium attachment unit of use |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101221805A true CN101221805A (en) | 2008-07-16 |
| CN100545937C CN100545937C (en) | 2009-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100019031A Active CN100545937C (en) | 2007-01-05 | 2007-01-12 | The system of medium attachment unit and this medium attachment unit of use |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100545937C (en) |
| HK (1) | HK1119287A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102236627A (en) * | 2010-04-20 | 2011-11-09 | 宏碁股份有限公司 | Interface device |
| CN108255765A (en) * | 2018-03-28 | 2018-07-06 | 广州凯蒂诺信息科技有限公司 | Vehicle-mounted CD host As UX turns usb audio transmitting device and its transmission method |
-
2007
- 2007-01-12 CN CNB2007100019031A patent/CN100545937C/en active Active
-
2008
- 2008-10-09 HK HK08111177.4A patent/HK1119287A1/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102236627A (en) * | 2010-04-20 | 2011-11-09 | 宏碁股份有限公司 | Interface device |
| CN108255765A (en) * | 2018-03-28 | 2018-07-06 | 广州凯蒂诺信息科技有限公司 | Vehicle-mounted CD host As UX turns usb audio transmitting device and its transmission method |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1119287A1 (en) | 2009-02-27 |
| CN100545937C (en) | 2009-09-30 |
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