CN101383674B - Method for realizing mobile multimedia broadcast receiving, receiving card and mobile device - Google Patents
Method for realizing mobile multimedia broadcast receiving, receiving card and mobile device Download PDFInfo
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- CN101383674B CN101383674B CN2008102238235A CN200810223823A CN101383674B CN 101383674 B CN101383674 B CN 101383674B CN 2008102238235 A CN2008102238235 A CN 2008102238235A CN 200810223823 A CN200810223823 A CN 200810223823A CN 101383674 B CN101383674 B CN 101383674B
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Abstract
The invention discloses a method for realizing the mobile multimedia radio receiving, a receiving card and a mobile device thereof, wherein the receiving card comprises a mobile memory card body, a mobile multimedia radio receiving unit, radio frequency pins and an allocation unit, wherein the allocation unit arranged in the mobile device is used for controlling the mobile multimedia radio receiving card to work on the working model corresponding to the interface type of the mobile device according to the interface type supported by the mobile device; the radio frequency pins are used for transmitting mobile multimedia radio frequency signals from an antenna to the mobile multimedia radio receiving unit; the mobile multimedia radio receiving unit is used for converting audio and video flows according with the mobile multimedia radio standard to audio and video flows according with the interface type of the mobile device to the mobile device after the radio frequency signal is processed to obtain audio and video flows according with the mobile multimedia radio standard. The technical proposal disclosed by the invention can cause the mobile device to conveniently realize the support of the mobile multimedia radio receiving function.
Description
Technical field
The present invention relates to electronic technology, relate in particular to and a kind ofly realize method, the mobile multimedia broadcast receiving card that Mobile Multimedia Broadcasting receives and use the mobile device of this receiving card based on mobile memory card.
Background technology
Present mobile memory card comprises SD (Secure Digital Memory Card, safe digital card), Mini SD (mini secure data storage card) and Micro SD (miniature secure data storage card).Wherein, the SD card is a kind of memory device of new generation of based semiconductor fast-flash memory device, has high memory capacity, rapid data transmission rate, great mobile flexibility and well fail safe, and does not need extra power supply to keep the information of memory on it.Mini SD and Micro SD are relative standard's SD cards, and it all is to adopt the SD architecture design, and is just little than standard SD card volume, compatible good.In addition, mobile memory card also comprises CF card, SM card, xD card, MMC (MultiMedia Card, multimedia card) etc., introduces no longer one by one herein.
Mobile memory card is widely used on various portable mobile apparatus, as multimedia player (as MP3, MP4 etc.), Digital Video, digital camera, mobile phone, personal digital assistant (PDA), GPS navigation device, vehicle multimedia system, have controlled function earphone, have the earphone of Bluetooth function etc., also can be used on the notebook computer in addition.As seen, the application of mobile memory card is more extensive.
China Mobile multimedia broadcasting technology alliance abbreviates China Mobile multimedia broadcasting (CMMB as, China Mobile Multimedia Broadcasting), it is intended to develop multimedia reception technique and the equipment that is fit to move application as the technical system of serving China Mobile multimedia broadcasting.In addition, also has some other Mobile Multimedia Broadcasting standard.
In order to receive mobile multimedia broadcast signal such as CMMB signal, need configuration corresponding mobile multimedia broadcasting receiving element.The operation principle of Mobile Multimedia Broadcasting receiving element is roughly: the radiofrequency signal that receives is amplified, filtering, and be converted to baseband signal, if this baseband signal is an analog signal, then this baseband signal is carried out obtaining digital signal after mould/number conversion, if this baseband signal is a digital signal, then need not conversion, digital signal is handled through channel synchronization, detect and extract mobile multimedia broadcast signal (as the CMMB signal) wherein, the mobile multimedia broadcast signal (as the CMMB signal) that extracts is carried out obtaining meeting after the demodulation Mobile Multimedia Broadcasting audio/video flow (as the CMMB audio/video flow) of Mobile Multimedia Broadcasting standard (as the CMMB standard).
In order to make mobile device can receive these mobile multimedia broadcast signals, need mobile device manufacturer that corresponding software and hardware technology support is set in mobile device, comprise above-mentioned Mobile Multimedia Broadcasting receiving element, yet this has brought the increase receiving terminal construction cycle undoubtedly, increases problems such as investment.And because the plurality of advantages and the mobile memory card application fields of mobile memory card, make if the Mobile Multimedia Broadcasting receiving element is arranged in the mobile memory card, then can make the portable mobile equipment of present use mobile memory card receive the Mobile Multimedia Broadcasting digital television signal easily.
Summary of the invention
In view of this, provide a kind of method that realizes that Mobile Multimedia Broadcasting receives among the present invention on the one hand, provide a kind of mobile multimedia broadcast receiving card and two kinds of mobile devices on the other hand, to realize reception easily to Mobile Multimedia Broadcasting.
The method that realization Mobile Multimedia Broadcasting provided by the present invention receives comprises:
Mobile Multimedia Broadcasting receiving element and radio frequency pin are set in mobile memory card, obtain mobile multimedia broadcast receiving card;
According to the interface type that the mobile device of using described mobile multimedia broadcast receiving card is supported, control described mobile multimedia broadcast receiving card be operated in the corresponding mode of operation of the interface type of described mobile device on; When the interface type of described mobile device support comprises secure data storage card input and output SDIO type, the control mobile multimedia broadcast receiving card be operated in the corresponding mode of operation of the interface type of described mobile device on comprise: the pin that will link to each other with the SDIO interface of described mobile device is simulated the capable Peripheral Interface spi bus of bunchiness, spi bus by described simulation downloads to the firmware program of SDIO pattern in the described mobile multimedia broadcast receiving card, utilize described firmware program that the described pin configuration that links to each other with the SDIO interface of mobile device is become the SDIO mode bus, make described mobile multimedia broadcast receiving card be operated in the SDIO pattern;
On described mode of operation, described mobile multimedia broadcast receiving card receives Mobile Multimedia Broadcasting radiofrequency signal from antenna by described radio frequency pin and described Mobile Multimedia Broadcasting receiving element, and described radiofrequency signal is converted to the Mobile Multimedia Broadcasting audio/video flow that meets the mobile device interface type exports to mobile device.
Preferably, the interface type of described mobile device support further comprises: SPI and/or MMIS interface type.
Preferably, described radio frequency pin is the pin of setting up in the mobile memory card, and then described SDIO pattern is: 1 line SDIO pattern or 4 line SDIO patterns;
Perhaps, described radio frequency pin is a pin in the mobile memory card standard pin of using, and then described SDIO pattern is: 1 line SDIO pattern.
Preferably, described obtaining before the mobile multimedia broadcast receiving card, further comprise: the interrupt requests pin is set in mobile memory card, and described interrupt requests pin links to each other with the general purpose I/O interface GPIO of mobile device or links to each other with a data wire in the SDIO interface of mobile device.
Mobile multimedia broadcast receiving card provided by the present invention, comprise: the mobile memory card body, be installed in Mobile Multimedia Broadcasting receiving element in the mobile memory card body, at the radio frequency pin that is provided with on the mobile memory card body be positioned at dispensing unit outside the described mobile multimedia broadcast receiving card, wherein
Described dispensing unit is used for being installed in the mobile device of using described mobile multimedia broadcast receiving card, according to the interface type that described mobile device is supported, control described mobile multimedia broadcast receiving card be operated in the corresponding mode of operation of the interface type of described mobile device on; Described dispensing unit comprises: SDIO disposes subelement, and described SDIO configuration subelement comprises: the SPI virtual module is used for will being modeled to spi bus with the pin that the SDIO interface of described mobile device links to each other when described mobile device is supported the SDIO interface; With the SDIO processing module, the spi bus that is used for by described simulation downloads to described mobile multimedia broadcast receiving card with the firmware program of SDIO pattern, utilize described firmware program that the described pin configuration that links to each other with the SDIO interface of mobile device is become the SDIO mode bus, make described mobile multimedia broadcast receiving card be operated in the SDIO pattern;
Described radio frequency pin is used for giving described Mobile Multimedia Broadcasting receiving element with the Mobile Multimedia Broadcasting radio signal transmission from antenna;
Obtain meeting the audio/video flow of Mobile Multimedia Broadcasting standard after described Mobile Multimedia Broadcasting receiving element is used for described radiofrequency signal handled, the described audio/video flow that meets the Mobile Multimedia Broadcasting standard is converted to the audio/video flow that meets the mobile device interface type exports to mobile device by the standard pin that described mobile memory card body is operated under the corresponding mode of operation.
Preferably, described dispensing unit further comprises: SPI configuration subelement and/or MMIS configuration subelement, wherein
Described SPI configuration subelement is used for controlling described mobile multimedia broadcast receiving card and being operated on the SPI pattern when described mobile device is supported the SPI interface.
Described MMIS configuration subelement is used for controlling described mobile multimedia broadcast receiving card and being operated on the MMIS pattern when described mobile device is supported the MMIS interface.
Preferably, described SDIO configuration subelement comprises:
The SPI virtual module is used for will being modeled to spi bus with the pin that the SDIO interface of described mobile device links to each other when described mobile device is supported the SDIO interface;
The SDIO processing module, the spi bus that is used for by described simulation downloads to described mobile multimedia broadcast receiving card with the firmware program of SDIO pattern, utilize described firmware program that the described pin configuration that links to each other with the SDIO interface of mobile device is become the SDIO mode bus, make described mobile multimedia broadcast receiving card be operated in the SDIO pattern.
Preferably, described dispensing unit further comprises: the chooser unit, be used for when described mobile device is supported SPI interface and SDIO interface,, send the configuration indication to selected SPI configuration subelement or SDIO configuration subelement according to user's selection or default selection rule;
Described SPI configuration subelement or described SDIO configuration subelement according to described configuration indication finish described control mobile multimedia broadcast receiving card be operated in the corresponding mode of operation of the interface type of described mobile device on operation.
Preferably, described radio frequency pin is a pin in the described mobile memory card body standard pin of using, or the pin for setting up on the described mobile memory card body.
Preferably, described mobile memory card body is: secure data storage card SD or mini secure data storage card Mini SD or miniature secure data storage card Micro SD.
Preferably, a pin in the described mobile memory card body standard pin of using is the DATA1 pin.
Preferably, described receiving card further comprises: the interrupt requests pin is used for linking to each other with the general purpose I/O interface GPIO of mobile device or links to each other with a data wire of the SDIO interface of mobile device.
Preferably, this receiving card further comprises: the memory cell of mobile memory card.
Preferably, described Mobile Multimedia Broadcasting comprises: China Mobile multimedia broadcasting CMMB.
First kind of mobile device provided by the present invention, comprise: the deck, first interface unit and the main control unit that are used to install mobile multimedia broadcast receiving card, described mobile multimedia broadcast receiving card comprises the mobile memory card body, be installed in the mobile memory card body the Mobile Multimedia Broadcasting receiving element and at the radio frequency pin that is provided with on the mobile memory card body be used to be installed in dispensing unit on this mobile device, wherein
Described main control unit is used for after described mobile multimedia broadcast receiving card is installed on the described deck, move the dispensing unit of described mobile multimedia broadcast receiving card, according to the run time version of described dispensing unit, control described mobile multimedia broadcast receiving card be operated in the corresponding mode of operation of the interface type of described first interface unit on; The interface type of the described first interface unit support comprises the SDIO type, described control mobile multimedia broadcast receiving card be operated in the corresponding mode of operation of the interface type of described first interface unit on comprise: the capable Peripheral Interface spi bus of the pin that will link to each other simulation bunchiness with the SDIO interface of described mobile device, spi bus by described simulation downloads to the firmware program of SDIO pattern in the described mobile multimedia broadcast receiving card, utilize described firmware program that the described pin configuration that links to each other with the SDIO interface of mobile device is become the SDIO mode bus, make described mobile multimedia broadcast receiving card be operated in the SDIO pattern;
Described radio frequency pin is used for giving described Mobile Multimedia Broadcasting receiving element with the Mobile Multimedia Broadcasting radio signal transmission from antenna;
Obtain meeting the audio/video flow of Mobile Multimedia Broadcasting standard after described Mobile Multimedia Broadcasting receiving element is used for described radiofrequency signal handled, the described audio/video flow that meets the Mobile Multimedia Broadcasting standard is converted to the audio/video flow that meets the mobile device interface type and is operated in standard pin output under the corresponding mode of operation by described mobile memory card body;
Described deck comprises first contact that is connected with the standard pin of described mobile memory card body;
Described first interface unit is used for being connected by the standard pin of described first contact and described mobile memory card body, reception is from the audio/video flow of described Mobile Multimedia Broadcasting receiving element, and described audio/video flow is converted to the audio/video flow that self agreement is supported.
Preferably, the interface type of the described first interface unit support further comprises the SPI type.
Preferably, this mobile device further comprises: be installed in the mobile multimedia broadcast receiving card on the described deck.
Second kind of mobile device provided by the present invention, comprise: mobile multimedia broadcast receiving card, first interface unit and main control unit, described mobile multimedia broadcast receiving card comprises the mobile memory card body, be installed in Mobile Multimedia Broadcasting receiving element in the mobile memory card body, at the radio frequency pin that is provided with on the mobile memory card body be used to be installed in dispensing unit on this mobile device, wherein
Described main control unit is used to move the dispensing unit of described mobile multimedia broadcast receiving card, according to the run time version of described dispensing unit, control described mobile multimedia broadcast receiving card be operated in the corresponding mode of operation of the interface type of described first interface unit on; The interface type of the described first interface unit support comprises the SDIO type, described control mobile multimedia broadcast receiving card be operated in the corresponding mode of operation of the interface type of described first interface unit on comprise: the capable Peripheral Interface spi bus of the pin that will link to each other simulation bunchiness with the SDIO interface of described mobile device, spi bus by described simulation downloads to the firmware program of SDIO pattern in the described mobile multimedia broadcast receiving card, utilize described firmware program that the described pin configuration that links to each other with the SDIO interface of mobile device is become the SDIO mode bus, make described mobile multimedia broadcast receiving card be operated in the SDIO pattern;
Described radio frequency pin is used for giving described Mobile Multimedia Broadcasting receiving element with the Mobile Multimedia Broadcasting radio signal transmission from antenna;
Obtain meeting the audio/video flow of Mobile Multimedia Broadcasting standard after described Mobile Multimedia Broadcasting receiving element is used for described radiofrequency signal handled, the described audio/video flow that meets the Mobile Multimedia Broadcasting standard is converted to the audio/video flow that meets the mobile device interface type and is operated in standard pin output under the corresponding mode of operation by described mobile memory card body;
Described first interface unit is used to receive the audio/video flow from described Mobile Multimedia Broadcasting receiving element, and described audio/video flow is converted to the audio/video flow that self agreement is supported.
From such scheme as can be seen, among the present invention by the radio frequency pin is set on the mobile memory card body, and in mobile memory card built-in Mobile Multimedia Broadcasting receiving element, make mobile memory card become a receiving card of supporting the Mobile Multimedia Broadcasting receiving function; Interface type by being provided for to support in addition according to the mobile device of using this receiving card, control this receiving card be operated in the corresponding mode of operation of the interface type of described mobile device on dispensing unit, thereby realized of the reception of distinct interface mobile device to Mobile Multimedia Broadcasting.The user only needs as using mobile memory card at ordinary times receiving card to be inserted in the mobile device, just can realize the support to the Mobile Multimedia Broadcasting receiving function easily, receives the Mobile Multimedia Broadcasting digital television signal.
Description of drawings
Fig. 1 is the exemplary block diagram of mobile multimedia broadcast receiving card in the embodiment of the invention;
Fig. 2 is a kind of internal structure schematic diagram of Mobile Multimedia Broadcasting receiving element in the receiving card shown in Figure 1;
Fig. 3 a is that the title of each pin of mobile multimedia broadcast receiving card reached the annexation schematic diagram with mobile device when mobile device was supported the SPI interface in the embodiment of the invention;
Fig. 3 b and Fig. 3 c are respectively in the embodiment of the invention mobile device when supporting the SDIO interface, the title of each pin of mobile multimedia broadcast receiving card and with two kinds of schematic diagrames of the annexation of mobile device;
Fig. 4 is the exemplary block diagram of mobile device in the embodiment of the invention;
Fig. 5 is the exemplary process diagram that realizes the method that Mobile Multimedia Broadcasting receives in the embodiment of the invention.
Embodiment
In the embodiment of the invention,, therefore the Mobile Multimedia Broadcasting receiving element is set in mobile memory card for mobile memory card being arranged to support the mobile multimedia broadcast receiving card of Mobile Multimedia Broadcasting receiving function; In addition, because for the Mobile Multimedia Broadcasting receiving system, need external antenna to connect to receive the Mobile Multimedia Broadcasting radiofrequency signal in space, and in the present mobile memory card owing to there is not standby pin to be used for radio frequency (RF) signal input usually, therefore in the embodiment of the invention radio frequency pin need be set in mobile memory card, to realize the reception of Mobile Multimedia Broadcasting radiofrequency signal.Wherein, this radio frequency pin can be to set up in addition on the basis of the original standard pin of mobile memory card, also can be certain pin in the original standard pin of mobile memory card of using.In addition, in order to realize interrupting, the interrupt requests pin can be set in mobile memory card, same, this interrupt requests pin can be to set up in addition on the basis of the original standard pin of mobile memory card, also can be certain pin in the original standard pin of mobile memory card of using.
In addition,, can make mobile multimedia broadcast receiving card realize that the bus of different interface type is shared in order to support the interface type of different mobile devices, shared as the bus of SPI interface type and SDIO interface type.
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in more detail.
Present mobile memory card generally includes mobile memory card body and memory cell.Wherein, the mobile memory card body refers to the physical structures such as housing, interface and pin of mobile memory card.
In mobile memory card, the Micro SD in the SD serial card is because volume is little, and is compatible good, makes increasing mobile device select the carrier of Micro SD card as product.Therefore, be that example is described with Micro SD card in the embodiment of the invention, can be achieved with reference to the embodiment that with Micro SD card is example for other card in the mobile memory card.
Fig. 1 is the exemplary block diagram of mobile multimedia broadcast receiving card in the embodiment of the invention.Shown in the part of the solid line among Fig. 1, this receiving card comprises: Micro SD body (comprises 8 pins, the 1st pin is the DATA2 pin, the 2nd pin is the CD/DATA3 pin, the 3rd pin is the CMD pin, the 4th pin is the VDD pin, the 5th pin is the CLK pin, the 6th pin is the Vss2 pin, the 7th pin is the DATA0 pin, the 8th pin is the DATA1 pin), be installed in the Mobile Multimedia Broadcasting receiving element in the Micro SD body, the DATA1 pin of using on the Micro SD body (can certainly be other pin, as the DATA3 pin) the radio frequency pin realized, use the DATA3 pin (can certainly be other pin) on the Micro SD body interrupt requests pin of realizing and the dispensing unit that is used to be installed on the mobile device of using this mobile multimedia broadcast receiving card as the DATA1 pin.Wherein, only show among Fig. 1 and the unit of supporting that multimedia broadcasting function of mobile is relevant.During specific implementation, this mobile multimedia broadcast receiving card also can comprise other unit in the Micro SD body such as memory cell etc., perhaps also can not comprise other unit in the Micro SD cards such as memory cell.Wherein, the Mobile Multimedia Broadcasting receiving element that is installed in the Micro SD body can be being installed in the Micro SD body of can freely plugging, and also can be to be fixedly mounted in the MicroSD body.
Wherein, dispensing unit is used for being installed in the mobile device of using this mobile multimedia broadcast receiving card, according to the interface type that described mobile device is supported, control described mobile multimedia broadcast receiving card be operated in the corresponding mode of operation of the interface type of described mobile device on.This dispensing unit can be the functional unit of being finished by program code, and this dispensing unit can be stored on any storage medium.
The radio frequency pin is used for the Mobile Multimedia Broadcasting radiofrequency signal (as the CMMB signal) from antenna is transferred to the Mobile Multimedia Broadcasting receiving element.Wherein, antenna can be the antenna that is provided with on receiving card, also can be to utilize the existing antenna of the applied mobile device of receiving card itself.Setting about antenna belongs to those skilled in the art's conventional techniques means, repeats no more here.
Obtain meeting the Mobile Multimedia Broadcasting audio/video flow (as the CMMB audio/video flow) of Mobile Multimedia Broadcasting standard (as the CMMB standard) after the Mobile Multimedia Broadcasting receiving element is used for described radiofrequency signal handled, the described audio/video flow that meets the Mobile Multimedia Broadcasting standard is converted to the audio/video flow that meets the mobile device interface type exports to mobile device by the standard pin that is operated under this mode of operation of described Micro SD body.Alleged herein standard pin refers to the physical pin that Micro SD itself is had.
Further; because it is big that the Mobile Multimedia Broadcasting receiving system has a supply current; power supply is required altogether characteristics such as height; and the power pins of present Micro SD card has only 2; promptly power and each pin of ground connection; may not well satisfy of the requirement of Mobile Multimedia Broadcasting receiving system to power supply; therefore can be shown in the dotted portion among Fig. 1 in the present embodiment; on Micro SD body, set up accessory power supply pin and auxiliary earth pin, be used to be respectively described Mobile Multimedia Broadcasting receiving element and insert auxiliary power supply supply and ground protection.
Wherein, the optional position that accessory power supply pin that increases and auxiliary earth pin can be arranged on Micro SD card, as being arranged on the lower surface of Micro SD card, promptly be in one side with original standard pin, perhaps also can be arranged on the side of Micro SD card or upper surface etc.In addition, for different applied environments, the number of the auxiliary pin of setting up on Micro SD card and definition also can be different.
During specific implementation, the internal structure that Mobile Multimedia Broadcasting is received the unit can have multiple way of realization, Fig. 2 shows wherein a kind of way of realization, as shown in Figure 2, Fig. 2 is a kind of internal structure schematic diagram of Mobile Multimedia Broadcasting receiving element, comprising: radiofrequency signal receives with conversion subelement and mobile multimedia broadcast signal and receives subelement.
Wherein, the radiofrequency signal that radiofrequency signal receives and the conversion subelement is used for transmitting by described radio frequency pin is amplified, filtering, and is converted to baseband signal.
Mobile multimedia broadcast signal receives and to obtain meeting the Mobile Multimedia Broadcasting audio/video flow of Mobile Multimedia Broadcasting standard after subelement is used for the baseband signal that receives handled, and is converted into the Mobile Multimedia Broadcasting audio/video flow that meets the mobile device interface type is operated in corresponding mode of operation by described Micro SD body standard pin output.
During specific implementation, mobile multimedia broadcast signal receives subelement also can multiple specific implementation form.For example, be digital baseband signal as if the baseband signal that receives and change after subelement is changed through radiofrequency signal, then mobile multimedia broadcast signal reception subelement can comprise: channel synchronization module, demodulation module and protocol conversion module.
Wherein, the signal Synchronization module is used to receive digital baseband signal, detects and extract mobile multimedia broadcast signal.
Demodulation module is used for the mobile multimedia broadcast signal that extracts is carried out obtaining meeting after the demodulation Mobile Multimedia Broadcasting audio/video flow of Mobile Multimedia Broadcasting standard.
The Mobile Multimedia Broadcasting audio/video flow that protocol conversion module is used for meeting the Mobile Multimedia Broadcasting standard is converted to the Mobile Multimedia Broadcasting audio/video flow that meets the mobile device interface type.
If what radiofrequency signal received and the conversion subelement is exported is analog baseband signal, so, mobile multimedia broadcast signal receives subelement and also comprises mould/number conversion module, and the analog baseband signal that is used for receiving is converted to digital baseband signal, and sends to described signal Synchronization module.
At present, the interface type of mobile device support generally includes SPI (Serial Peripheral Interface (SPI)) type and/or SDIO type and/or MMIS (mobile multimedia interface protocol) etc.Wherein, the SDIO interface is the interface of mobile device main flow support.
Correspondingly, the dispensing unit of mobile multimedia broadcast receiving card can comprise in the embodiment of the invention: SPI configuration subelement and/or SDIO configuration subelement and/or MMIS configuration subelement.
Wherein, SPI configuration subelement is used for when mobile device is supported the SPI interface, and the control mobile multimedia broadcast receiving card is operated on the SPI pattern.At this moment, can utilize the 1st, 3,5,7 pins in the Micro SD card body shown in Figure 1 respectively as CS# (sheet choosing), RX (data input), CLK (clock), TX (data output) pin of spi bus, then 8 functions of pins are as shown in table 1 in the Micro SD card body:
| PIN NUMBER (pin number) | DESCRIPTION (functional description) |
| 1 | SPI chip select (choosing of SPI sheet) is designated as |
| 2 | SPI data IRQ (SPI interrupt requests) is designated as |
| 3 | SPI data input (input of SPI data) is designated as |
| 4 | Power supply (power supply) is designated as |
| 5 | SPI clock (SPI clock) is designated as |
| 6 | Ground (ground connection) is designated as |
| 7 | SPI data output (output of SPI data) is designated as SPI_TXD |
| 8 | U band RF input (radio frequency input) is designated as URFIN |
Table 1
When Fig. 3 a showed mobile device support SPI interface, the title of each pin of mobile multimedia broadcast receiving card reached the annexation schematic diagram with mobile device.Shown in Fig. 3 a, mobile multimedia broadcast receiving card utilizes the 1st the pin DATA2 of Micro SD as the SPI_CS pin; The 2nd the pin CD/DATA3 that utilizes Micro SD is as the SPI_IRQ pin, and this SPI_IRQ pin links to each other with the general purpose I/O interface (GPIO) of mobile device, detects the data interruption of SPI in the mode by GPIO; The 3rd the pin CMD that utilizes Micro SD is as the SPI_RXD pin; The 5th the pin CLK that utilizes Micro SD is as the SPI_CLK pin; The 7th the pin DATA0 that utilizes Micro SD is as the SPI_TXD pin, and the 8th the pin DATA1 that utilizes Micro SD is as the URFIN pin.
Antenna shown in Fig. 3 a can be original antenna in the mobile device of using, and also can be the antenna that mobile multimedia broadcast receiving card carries.
SDIO configuration subelement is used for when mobile device is supported the SDIO interface, and the control mobile multimedia broadcast receiving card is operated on the SDIO pattern.At this moment, in the Micro SD card body shown in Figure 1 except pin DATA1 and pin CD/DATA3 respectively as radio frequency pin and the interrupt requests pin, other functions of pins is constant.During specific implementation because change has taken place in the pin DATA1 of Micro SD card body and the function of pin CD/DATA3, therefore need with finish corresponding interface after the SDIO interface of mobile device links to each other and dispose.Need to download corresponding firmware program is configured for this reason, and the download of firmware program need utilize spi bus to carry out, for this reason, can at first the 1st, 3,5,7 pins in the Micro SD card body shown in Figure 1 be modeled to download firmware program behind CS# (sheet choosing), RX (data input), CLK (clock), TX (data output) pin of spi bus in the present embodiment, finish the configuration of SDIO afterwards, make the pin of Micro SD card body revert to the SDIO pattern, mobile device can be communicated by the SDIO pattern and the mobile multimedia broadcast receiving card of standard.
Correspondingly, 8 functions of pins are as shown in table 2 in the Micro SD card body:
| PINNUMBER (pin number) | DESCRIPTION (functional description) |
| 1 | SPI chip select (choosing of SPI sheet)/SDIO data2 (SDIO_D2) |
| 2 | SDIO?data?IRQ(SDIO_IRQ) |
| 3 | SPI data input (input of SPI data)/ |
| 4 | Power supply (power supply) |
| 5 | SPI clock (SPI clock)/ |
| 6 | Ground (ground connection) is designated as GND |
[0086]?
| 7 | SPI data output (output of SPI data)/SDIO data0 (SDIO_D0) |
| 8 | U band RF input (radio frequency input) is designated as URFIN |
Table 2
When Fig. 3 b and Fig. 3 c showed mobile device support SPI interface respectively, the title of each pin of mobile multimedia broadcast receiving card reached the two kinds of schematic diagrames of annexation with mobile device.Interrupt requests pin SDIO_IRQ links to each other with the general purpose I/O interface GPIO of mobile device among Fig. 3 b, and promptly mobile device detects the data interruption of SDIO by the mode of GPIO; A data wire among Fig. 3 c in the SDIO interface of interrupt requests pin SDIO_IRQ and mobile device (being SDIO_D1 among Fig. 3 c) links to each other, and promptly mobile device detects the data interruption of SDIO by the interrupt mode of SDIO oneself.
Antenna shown in Fig. 3 b and Fig. 3 c can be original antenna in the mobile device of using, and also can be the antenna that mobile multimedia broadcast receiving card carries.
During specific implementation, this SDIO configuration subelement can specifically comprise: SPI virtual module and SDIO processing module.
Wherein, the SPI virtual module is used for will being modeled to spi bus with the pin that the SDIO interface of described mobile device links to each other when described mobile device is supported the SDIO interface.
The spi bus that the SDIO processing module is used for by described simulation downloads to described mobile multimedia broadcast receiving card with the firmware program of SDIO pattern, utilize described firmware program that the described pin configuration that links to each other with the SDIO interface of mobile device is become the SDIO mode bus, make described mobile multimedia broadcast receiving card be operated in the SDIO pattern.
In the present embodiment, because radio frequency pin and interrupt requests pin have been used a data wire pin in the Micro SD card standard pin respectively, therefore when mobile multimedia broadcast receiving card was operated in the SDIO pattern, this SDIO pattern can only be 1 line (bit) pattern.In the practical application, if radio frequency pin and interrupt requests pin are respectively the pins of setting up on Micro SD card, then when mobile multimedia broadcast receiving card was operated in the SDIO pattern, this SDIO pattern can be 1 line (bit) pattern, also can be 4 lines (bit) patterns.
Equally, MMIS configuration subelement is used for when mobile device is supported the MMIS interface, and the control mobile multimedia broadcast receiving card is operated on the MMIS pattern.Specific implementation and such scheme are similar, no longer describe in detail herein.
In addition, because mobile device is not only supported a kind of interface type sometimes, as supporting SPI interface and SDIO interface simultaneously.At this moment, above-mentioned dispensing unit should comprise SPI configuration subelement and SDIO configuration subelement simultaneously, and can further comprise a chooser unit, be used for sending the configuration indication to selected SPI configuration subelement or SDIO configuration subelement according to user's selection or default selection rule (as choose current free time interface type).Then SPI configuration subelement or SDIO configuration subelement according to described configuration indication finish above-mentioned control mobile multimedia broadcast receiving card be operated in the corresponding mode of operation of the interface type of described mobile device on operation.
Corresponding above-mentioned mobile multimedia broadcast receiving card provides a kind of mobile device as shown in Figure 4 in the embodiment of the invention, Fig. 4 is the exemplary block diagram of mobile device in the embodiment of the invention.Comprise: mobile multimedia broadcast receiving card shown in Figure 1, the deck that is used to install this mobile multimedia broadcast receiving card, first interface unit and main control unit.
Wherein, main control unit is used for after described mobile multimedia broadcast receiving card is installed on the described deck, move the dispensing unit of described mobile multimedia broadcast receiving card, according to the run time version of described dispensing unit, control described mobile multimedia broadcast receiving card be operated in the corresponding mode of operation of the interface type of described first interface unit on.
The radio frequency pin is used for giving described Mobile Multimedia Broadcasting receiving element with the Mobile Multimedia Broadcasting radio signal transmission from antenna.
Obtain meeting the Mobile Multimedia Broadcasting audio/video flow of Mobile Multimedia Broadcasting standard after the Mobile Multimedia Broadcasting receiving element is used for described radiofrequency signal handled, the described Mobile Multimedia Broadcasting audio/video flow that meets the Mobile Multimedia Broadcasting standard is converted to meets the Mobile Multimedia Broadcasting audio/video flow of setting interface protocol and be operated in standard pin output under the corresponding mode of operation by described Micro SD body.
Deck comprises first contact that is connected with the standard pin of described mobile memory card body.Being connected of the standard pin of first interface unit by Micro SD body in described first contact and the receiving card, reception is from the Mobile Multimedia Broadcasting audio/video flow of Mobile Multimedia Broadcasting receiving element in the receiving card, and described Mobile Multimedia Broadcasting audio/video flow is converted to the Mobile Multimedia Broadcasting audio/video flow that self agreement is supported.
Further, because the design of the pin of Micro SD card is not the normal impedance design according to 50 ohm usually,, can all need add corresponding radio frequency matching circuit to reduce radio frequency loss at these pin two ends therefore in order to reduce possible radio frequency loss as far as possible.
Wherein, the interface type of the first interface unit support comprises SPI type and/or SDIO type and/or MMIS type.
In addition; when mobile multimedia broadcast receiving card comprises the accessory power supply pin set up and auxiliary earth pin; also comprise in the deck respectively with receiving card in the 3rd contact that is connected with the auxiliary earth pin of the accessory power supply pin set up; by being connected of described the 3rd contact and described accessory power supply pin and auxiliary earth pin, mobile device is respectively described Mobile Multimedia Broadcasting receiving element provides auxiliary power supply to supply with and ground protection.
In addition, during specific implementation, mobile multimedia broadcast receiving card also can be solidificated in the mobile device, need not to be provided for installing in mobile device the deck of this mobile multimedia broadcast receiving card this moment.
More than mobile multimedia broadcast receiving card in the embodiment of the invention and mobile device are described in detail, below again to realizing in the embodiment of the invention that the method that Mobile Multimedia Broadcasting receives is described in detail.
Fig. 5 is the exemplary process diagram that realizes the method that Mobile Multimedia Broadcasting receives in the embodiment of the invention.As shown in Figure 5, this flow process comprises the steps:
Step 501 is provided with Mobile Multimedia Broadcasting receiving element and radio frequency pin in mobile memory card, obtain mobile multimedia broadcast receiving card as shown in Figure 1.
In this step, the interrupt requests pin can be set in mobile memory card further, this interrupt requests pin is used for linking to each other with the general purpose I/O interface GPIO of mobile device or links to each other with a data wire of the SDIO interface of mobile device.
In this step, when mobile device is supported the SDIO interface, this step can comprise: will be modeled to spi bus with the pin that the SDIO interface of described mobile device links to each other, spi bus by described simulation downloads to the firmware program of SDIO pattern in the described mobile multimedia broadcast receiving card, utilize described firmware program that the described pin configuration that links to each other with the SDIO interface of mobile device is become the SDIO mode bus, make described mobile multimedia broadcast receiving card be operated in the SDIO pattern.
But the specific implementation of step can be consistent with mobile multimedia broadcast receiving card and the corresponding implementation in the mobile device described in the embodiment of the invention in the flow process shown in Figure 5, gives unnecessary details no longer one by one herein.
Above-mentioned is that example is described in detail the technical scheme among the present invention with Micro SD card, can repeat no more referring to the above-mentioned embodiment that realizes based on Micro SD card for realization based on the SD card in other mobile memory cards, Mini SD card, CF card, SM card, xD card and mmc card etc. herein.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is preferred embodiment of the present invention; be not to be used to limit protection scope of the present invention; within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (17)
1. method that realizes that Mobile Multimedia Broadcasting receives is characterized in that this method comprises:
Mobile Multimedia Broadcasting receiving element and radio frequency pin are set in mobile memory card, obtain mobile multimedia broadcast receiving card;
According to the interface type that the mobile device of using described mobile multimedia broadcast receiving card is supported, control described mobile multimedia broadcast receiving card be operated in the corresponding mode of operation of the interface type of described mobile device on; When the interface type of described mobile device support comprises secure data storage card input and output SDIO type, the control mobile multimedia broadcast receiving card be operated in the corresponding mode of operation of the interface type of described mobile device on comprise: the pin that will link to each other with the SDIO interface of described mobile device is simulated the capable Peripheral Interface spi bus of bunchiness, spi bus by described simulation downloads to the firmware program of SDIO pattern in the described mobile multimedia broadcast receiving card, utilize described firmware program that the described pin configuration that links to each other with the SDIO interface of mobile device is become the SDIO mode bus, make described mobile multimedia broadcast receiving card be operated in the SDIO pattern;
On described mode of operation, described mobile multimedia broadcast receiving card receives Mobile Multimedia Broadcasting radiofrequency signal from antenna by described radio frequency pin and described Mobile Multimedia Broadcasting receiving element, and described radiofrequency signal is converted to the Mobile Multimedia Broadcasting audio/video flow that meets the mobile device interface type exports to mobile device.
2. the method for claim 1 is characterized in that, the interface type of described mobile device support further comprises: SPI and/or mobile multimedia interface protocol MMIS interface type.
3. the method for claim 1 is characterized in that, described radio frequency pin is the pin of setting up in the mobile memory card, and then described SDIO pattern is: 1 line SDIO pattern or 4 line SDIO patterns;
Perhaps, described radio frequency pin is a pin in the mobile memory card standard pin of using, and then described SDIO pattern is: 1 line SDIO pattern.
4. as each described method in the claim 1 to 3, it is characterized in that, described obtaining before the mobile multimedia broadcast receiving card, further comprise: the interrupt requests pin is set in mobile memory card, and described interrupt requests pin links to each other with the general purpose I/O interface GPIO of mobile device or links to each other with a data wire in the SDIO interface of mobile device.
5. mobile multimedia broadcast receiving card, it is characterized in that, this receiving card comprises: the mobile memory card body, be installed in Mobile Multimedia Broadcasting receiving element in the mobile memory card body, at the radio frequency pin that is provided with on the mobile memory card body be positioned at dispensing unit outside the described mobile multimedia broadcast receiving card, wherein
Described dispensing unit is used for being installed in the mobile device of using described mobile multimedia broadcast receiving card, according to the interface type that described mobile device is supported, control described mobile multimedia broadcast receiving card be operated in the corresponding mode of operation of the interface type of described mobile device on; Described dispensing unit comprises: SDIO disposes subelement, and described SDIO configuration subelement comprises: the SPI virtual module is used for will being modeled to spi bus with the pin that the SDIO interface of described mobile device links to each other when described mobile device is supported the SDIO interface; With the SDIO processing module, the spi bus that is used for by described simulation downloads to described mobile multimedia broadcast receiving card with the firmware program of SDIO pattern, utilize described firmware program that the described pin configuration that links to each other with the SDIO interface of mobile device is become the SDIO mode bus, make described mobile multimedia broadcast receiving card be operated in the SDIO pattern;
Described radio frequency pin is used for giving described Mobile Multimedia Broadcasting receiving element with the Mobile Multimedia Broadcasting radio signal transmission from antenna;
Obtain meeting the audio/video flow of Mobile Multimedia Broadcasting standard after described Mobile Multimedia Broadcasting receiving element is used for described radiofrequency signal handled, the described audio/video flow that meets the Mobile Multimedia Broadcasting standard is converted to the audio/video flow that meets the mobile device interface type exports to mobile device by the standard pin that described mobile memory card body is operated under the corresponding mode of operation.
6. receiving card as claimed in claim 5 is characterized in that, described dispensing unit further comprises: SPI configuration subelement and/or MMIS configuration subelement, wherein:
Described SPI configuration subelement is used for controlling described mobile multimedia broadcast receiving card and being operated on the SPI pattern when described mobile device is supported the SPI interface;
Described MMIS configuration subelement is used for controlling described mobile multimedia broadcast receiving card and being operated on the MMIS pattern when described mobile device is supported the MMIS interface.
7. receiving card as claimed in claim 5, it is characterized in that, described dispensing unit further comprises: the chooser unit, be used for when described mobile device is supported SPI interface and SDIO interface, according to user's selection or default selection rule, send the configuration indication to selected SPI configuration subelement or SDIO configuration subelement;
Described SPI configuration subelement or described SDIO configuration subelement according to described configuration indication finish described control mobile multimedia broadcast receiving card be operated in the corresponding mode of operation of the interface type of described mobile device on operation.
8. as each described receiving card in the claim 5 to 7, it is characterized in that described radio frequency pin is a pin in the described mobile memory card body standard pin of using, or the pin for setting up on the described mobile memory card body.
9. receiving card as claimed in claim 8 is characterized in that, described mobile memory card body is: secure data storage card SD or mini secure data storage card Mini SD or miniature secure data storage card Micro SD.
10. receiving card as claimed in claim 9 is characterized in that, a pin in the described mobile memory card body standard pin of using is the DATA1 pin.
11. as each described receiving card in the claim 5 to 7, it is characterized in that, described receiving card further comprises: the interrupt requests pin is used for linking to each other with the general purpose I/O interface GPIO of mobile device or links to each other with a data wire of the SDIO interface of mobile device.
12., it is characterized in that this receiving card further comprises: the memory cell of mobile memory card as each described receiving card in the claim 5 to 7.
13., it is characterized in that described Mobile Multimedia Broadcasting comprises: China Mobile multimedia broadcasting CMMB as each described receiving card in the claim 5 to 7.
14. mobile device, it is characterized in that, this mobile device comprises: the deck, first interface unit and the main control unit that are used to install mobile multimedia broadcast receiving card, described mobile multimedia broadcast receiving card comprises the mobile memory card body, be installed in the mobile memory card body the Mobile Multimedia Broadcasting receiving element and at the radio frequency pin that is provided with on the mobile memory card body be used to be installed in dispensing unit on this mobile device, wherein
Described main control unit is used for after described mobile multimedia broadcast receiving card is installed on the described deck, move the dispensing unit of described mobile multimedia broadcast receiving card, according to the run time version of described dispensing unit, control described mobile multimedia broadcast receiving card be operated in the corresponding mode of operation of the interface type of described first interface unit on; The interface type of the described first interface unit support comprises the SDIO type, described control mobile multimedia broadcast receiving card be operated in the corresponding mode of operation of the interface type of described first interface unit on comprise: the capable Peripheral Interface spi bus of the pin that will link to each other simulation bunchiness with the SDIO interface of described mobile device, spi bus by described simulation downloads to the firmware program of SDIO pattern in the described mobile multimedia broadcast receiving card, utilize described firmware program that the described pin configuration that links to each other with the SDIO interface of mobile device is become the SDIO mode bus, make described mobile multimedia broadcast receiving card be operated in the SDIO pattern;
Described radio frequency pin is used for giving described Mobile Multimedia Broadcasting receiving element with the Mobile Multimedia Broadcasting radio signal transmission from antenna;
Obtain meeting the audio/video flow of Mobile Multimedia Broadcasting standard after described Mobile Multimedia Broadcasting receiving element is used for described radiofrequency signal handled, the described audio/video flow that meets the Mobile Multimedia Broadcasting standard is converted to the audio/video flow that meets the mobile device interface type and is operated in standard pin output under the corresponding mode of operation by described mobile memory card body;
Described deck comprises first contact that is connected with the standard pin of described mobile memory card body;
Described first interface unit is used for being connected by the standard pin of described first contact and described mobile memory card body, reception is from the audio/video flow of described Mobile Multimedia Broadcasting receiving element, and described audio/video flow is converted to the audio/video flow that self agreement is supported.
15. mobile device as claimed in claim 14 is characterized in that, the interface type of the described first interface unit support further comprises the SPI type.
16., it is characterized in that this mobile device further comprises: be installed in the mobile multimedia broadcast receiving card on the described deck as claim 14 or 15 described mobile devices.
17. mobile device, it is characterized in that, this mobile device comprises: mobile multimedia broadcast receiving card, first interface unit and main control unit, described mobile multimedia broadcast receiving card comprises the mobile memory card body, be installed in Mobile Multimedia Broadcasting receiving element in the mobile memory card body, at the radio frequency pin that is provided with on the mobile memory card body be used to be installed in dispensing unit on this mobile device, wherein
Described main control unit is used to move the dispensing unit of described mobile multimedia broadcast receiving card, according to the run time version of described dispensing unit, control described mobile multimedia broadcast receiving card be operated in the corresponding mode of operation of the interface type of described first interface unit on; The interface type of the described first interface unit support comprises the SDIO type, described control mobile multimedia broadcast receiving card be operated in the corresponding mode of operation of the interface type of described first interface unit on comprise: the capable Peripheral Interface spi bus of the pin that will link to each other simulation bunchiness with the SDIO interface of described mobile device, spi bus by described simulation downloads to the firmware program of SDIO pattern in the described mobile multimedia broadcast receiving card, utilize described firmware program that the described pin configuration that links to each other with the SDIO interface of mobile device is become the SDIO mode bus, make described mobile multimedia broadcast receiving card be operated in the SDIO pattern;
Described radio frequency pin is used for giving described Mobile Multimedia Broadcasting receiving element with the Mobile Multimedia Broadcasting radio signal transmission from antenna;
Obtain meeting the audio/video flow of Mobile Multimedia Broadcasting standard after described Mobile Multimedia Broadcasting receiving element is used for described radiofrequency signal handled, the described audio/video flow that meets the Mobile Multimedia Broadcasting standard is converted to the audio/video flow that meets the mobile device interface type and is operated in standard pin output under the corresponding mode of operation by described mobile memory card body;
Described first interface unit is used to receive the audio/video flow from described Mobile Multimedia Broadcasting receiving element, and described audio/video flow is converted to the audio/video flow that self agreement is supported.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102238235A CN101383674B (en) | 2008-10-07 | 2008-10-07 | Method for realizing mobile multimedia broadcast receiving, receiving card and mobile device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008102238235A CN101383674B (en) | 2008-10-07 | 2008-10-07 | Method for realizing mobile multimedia broadcast receiving, receiving card and mobile device |
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| Publication Number | Publication Date |
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| CN101383674A CN101383674A (en) | 2009-03-11 |
| CN101383674B true CN101383674B (en) | 2010-11-03 |
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