CN101908028A - Method and system for realizing input/output (IO) expansion through standard secure digital (SD) memory interface - Google Patents
Method and system for realizing input/output (IO) expansion through standard secure digital (SD) memory interface Download PDFInfo
- Publication number
- CN101908028A CN101908028A CN200910107567.8A CN200910107567A CN101908028A CN 101908028 A CN101908028 A CN 101908028A CN 200910107567 A CN200910107567 A CN 200910107567A CN 101908028 A CN101908028 A CN 101908028A
- Authority
- CN
- China
- Prior art keywords
- address space
- sector address
- card
- coprocessor
- space
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0638—Organizing or formatting or addressing of data
- G06F3/0643—Management of files
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0604—Improving or facilitating administration, e.g. storage management
- G06F3/0607—Improving or facilitating administration, e.g. storage management by facilitating the process of upgrading existing storage systems, e.g. for improving compatibility between host and storage device
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0673—Single storage device
- G06F3/0679—Non-volatile semiconductor memory device, e.g. flash memory, one time programmable memory [OTP]
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Stored Programmes (AREA)
- Telephone Function (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to a method and a system for realizing input/output (IO) expansion through a standard secure digital (SD) memory interface. The method comprises the following steps of: integrating a flash memory space in a transflash (TF) card and expanding a coprocessor on the TF card; partitioning the address space of the flash memory space into two sections, wherein a second section is special for the coprocessor; uniformly addressing the addresses of the two sections of address space, wherein a file allocation table 32 (FAT32) file table is configured in a first-section address space; mapping a physical address to a file address, namely writing an address table of a second-section address space into the FAT32 file table in the first-section address space; and allowing an application program to access the physical address of the second-section address space by using the address table written into the second-section address space in the FAT32 file table. The method and the system can be flexibly applied to data communication on the premise of following SD memory specifications, so that various external apparatuses such as the coprocessor, a global positioning system (GPS) navigation module and the like can be expanded for all mobile phones supporting SD memory cards and a memory function can also be kept at the same time.
Description
Technical field
This paper relates to the TF card that a kind of expansion has coprocessor, particularly realizes the method and system of SDIO expansion by standard SD memory interface.
Background technology
SDIO has defined a kind of Peripheral Interface on the SD standard.At present, SDIO has two classes mainly to use---and removable and not removable.Present movable equipment is used for increasing bluetooth, camera, GPS and 802.11b function as the expansion equipment of Palm and Windows Mobile.Movable equipment is not followed identical electrical standard, but does not require and meet physical criterion.Comprise 802.11 chips that connect CPU by SDIO in some mobile phone.This measure is used for prior function with the I/O pin resource of " preciousness ".
Bluetooth, camera, GPS and 802.11b equipment have the using standard that aims at their definition.These using standards are very alike with the class standard that is the definition of PCI and USB device.They allow any host equipment and any peripheral hardware " conversation ", as long as they all support using standard.
An important difference between SDIO and SD calliper model is to have increased the low speed standard.The SDIO card only needs SPI and 1 SD transmission mode.The intended application of low speed card is to support low speed I/O ability with the hardware spending of minimum.The low speed card is supported application such as similar modulator-demodular unit, bar-code scanner and GPS receptacle.(storer+SDIO), full speed and 4 bit manipulations all are mandatory requirements to card internal storage and SDIO part for " combination " card.
To be used in the specification of expansion card with the draw-in groove of the same terminal shape of SD memory card.Corresponding SDIO draw-in groove (socket) is called the SDIO card, and the expansion card is called the SDIO card.
Be to use the specification of SD card in order in PC and PDA etc., to add function, owing to can use card and the slot also littler than PC card shape, to than in notebook computer, be used among the small and exquisite PDA more.Main product sold has, towards PHS address card and the bluetooth communication card of PDA, wireless network card, small digital cameras etc.
In order to use SDIO, corresponding slot must be arranged, the not corresponding SDIO card of the dedicated slot of memory card such as digital camera.Can insert SD memory card in the SDIO slot reads and writes.
All SD and SDIO card all must be supported older SPI/MMC pattern.This pattern support four line serial interfaces (chip is selected for clock, sequence input, sequence output) at a slow speed are compatible with sequence terminal interface (SPI) and many microcontrollers.
Use the purposes of the video camera lens SD socket at SDIO interface not just to insert storage card.Support the PDA of SDIO interface, notebook computers etc. can connect and resemble gps receiver, Wi-Fi or Bluetooth adapter, modulator-demodular unit, LAN adapter, barcode readers, the FM radio, television receiver, radio frequency authentication reader, perhaps digital camera or the like adopts the equipment of SD standard interface.
Mobile phone in the market, because the limitation of non intelligent mobile phone on computing power, most of core business of mobile Internet can only move on high-end smartphones at present.But from the whole world, the smart mobile phone ratio among the cellphone subscriber is greatly about about 10%.From China 600,000,000 cellphone subscribers, it is average that the smart mobile phone user is higher than the whole world, but also be no more than 15%, and skewness, the smart mobile phone popularity rate of a lot of provinces and cities is less than 10%, especially low side functional mobile phone still, does not possess the ability of external expansion equipment, but generally have the TF card that is used for the extension storage capacity, this interface meets the SD storage specification.Different with the SDIO standard, the SD storage specification can not be used for the IO expansion, can not be used for communication, can only be used to read the file content on the FLASH, so can't directly be used for the data expansion.Because the SD interface is considered only to be used to store usefulness,,, need the pattern of the expansion scale SD/IO of use SD if be used for streaming communication so its basic communication of data pattern is the communication mode of BLOCK (based on piece) when design.Yet SD/IO only just is equipped with on the high-end mobile phone of part, does not possess this ability for most of non intelligent mobile phones.How this must research implement the problem that streaming is communicated by letter with regard to requiring under the storage specification of SD basis.
Given this, being necessary to propose a kind of improved technical scheme solves the above-mentioned problems in the prior art in fact.
Summary of the invention
Technical matters solved by the invention provides a kind of scheme, under the situation of the hardware of not revising mobile phone itself, software, in the mode of plug-in coprocessor, based on a large amount of storage mobile phones of low and middle-end, promotes its computing power on the market significantly.
In order to address the above problem, the invention provides a kind of method by standard SD memory interface realization IO expansion, said method comprising the steps of:
A. be integrated with the flash storage space at described TF card, and on the TF card, expand a coprocessor;
B. the address space with described flash storage space is divided into two sections: the first sector address space is the flash address space that is specifically designed to storage, and the second sector address space is to be specifically designed to the data that storage coprocessor and application program are carried out data communication;
C. unified addressing is carried out in the address of the first sector address space and the second sector address space storage space, wherein the first sector address spatial configuration FAT32 file table;
D. physical address map is arrived the file address, the address table that is about to the second sector address space writes in the FAT32 file table in the first sector address space;
E. application program visits the second sector address space physics address by the address table in the second sector address space in the FAT32 file table that is written into the first sector address space, simulate streaming communication in the mode of file interface, i.e. simulation " writing " operation and simulation " reading " operation.
In addition, the present invention also provides a kind of system that realizes the IO expansion by standard SD memory interface, comprise a portable terminal with standard SD interface, a TF card that is inserted into the SD interface, it is characterized in that: expansion has a coprocessor on the described TF card, described TF card also comprises the flash storage space of being made up of the first sector address space and the second sector address space, the described first sector address space and the second sector address space are unified geocoding, the address table of second address space writes in the FAT32 file table in the first sector address space, when running of mobile terminal java program, the java program writes the second sector address space with pending data earlier, after coprocessor is handled, read data after the processing by the java program second sector address space again, the physical address that visits the second sector address space from the address table of java program by the second sector address space the FAT32 file table that is written into the first sector address space writes the second sector address space with data or from the second sector address space sense data.
Compared with prior art, the TF card slot that utilizes most of mobile phones to have, the medium chip is implanted TF card inside, finish the intellectuality of non intelligent mobile phone, and change the SD standard that does not have the IO communication pattern of standard into chip that the TF card is implanted into and program and can replenish enough computing powers and finish the calculating of various media contents, rebuild and present.
Description of drawings
Fig. 1 is the inventive method FB(flow block);
Fig. 2 is the first sector address space of the inventive method preferred implementation TF card and the synoptic diagram in the second sector address space;
Fig. 3 is the synoptic diagram in the FAT32 file table that the address table in the coprocessor second sector address space is write the first sector address space;
Fig. 4 is the idiographic flow synoptic diagram that preferred embodiment for the present invention JAVA program and coprocessor communicate.
Embodiment
Illustrate that below in conjunction with accompanying drawing the present invention specifically implements: as shown in Figure 1, be the FB(flow block) of the inventive method
Step S1: be integrated with the flash storage space at described TF card, and on the TF card, expand a coprocessor; The TF jig of standard has flash (flash memory) part, only have memory function and do not have the streaming communication function, the present invention has kept standard TF jig flash (flash memory) part, compatible to SD calliper model 1.0.1, compatible physical protocol specification 1.1, compatible MicroSD calliper model V1.0 supports two kinds of communication protocols: SD pattern and SPI pattern; In addition, and on the TF card expansion coprocessor, this coprocessor is a SIP mobile media processor, owing to be mainly used in mobile phone terminal, and outside performance index reach client's demand, system power dissipation is strict, therefore during the SoC preliminary analysis, these two indexs are very crucial, and we have adopted following gordian technique: adopt advanced semiconductor technology: the 0.13umCMOS Logic Process of SMIC (SMIC), 1.2V core voltage, 3.3VIO voltage; Adopt high-performance low-power-consumption DSP: we have adopted core former (VeriSilicon) second generation high-performance ZSP520DSP processor, are responsible for the control of audio/video decoding and system; This DSP is widely used in radio base band and multimedia process field by domestic and international famous no wafer semiconductor company, adopts advanced encapsulation technology; With world-class ASE Group of the big factory of Chip Packaging (ASE) cooperation, adopt state-of-the-art technology to carry out SIP design packaging and testing; Its software is stored among the NAND FLASH, meets MicroSD Specification Version1.0 (SD card standard and compatible series one), and during operation, DSP is from NAND FLASH bootstrapping, carries out after mirror image is loaded into SDRAM.
Step S2: as shown in Figure 2, the address space of described flash storage space is divided into two sections: the first sector address space is the flash address space that is specifically designed to storage, and the second sector address space is to be specifically designed to the data that storage coprocessor and application program are carried out data communication; Adopt the mode of storage/IO unified addressing to realize the visit of mobile phone to coprocessor.From mobile phone toward T card direction, the address space of SD is divided into two sections:
The some FLASH address spaces of address since 0.
Be mapped to the IO of certain section physical address, the IO back is a coprocessor, and mobile phone and coprocessor communicate by this section IO address.
Step S3: unified addressing is carried out in the address of the first sector address space and the second sector address space storage space, wherein the first sector address spatial configuration FAT32 file table;
Step S4: to the file address, the address table that is about to the second sector address space writes in the FAT32 file table in the first sector address space with physical address map; As shown in Figure 3, write synoptic diagram in the FAT32 file table in the first sector address space for address table with the coprocessor second sector address space;
Step S5: application program visits the second sector address space physics address by the address table in the second sector address space in the FAT32 file table that is written into the first sector address space, with the streaming communication that the mode of file interface is simulated the SDIO standard, i.e. simulation " writing " operation and simulation " reading " operation.As shown in Figure 4, be the synoptic diagram of i.e. simulation " writing " operation with simulation " reading " operation:
S51: application program writes initialization procedure to the second sector address space, thus the initialization coprocessor;
S52: application program writes data in the input-buffer in the TF card second sector address space;
S53: application program is waited for the coprocessor deal with data, and coprocessor will be handled the back data storage in the empty output buffers of second sector address;
S54: application program reads data after the processing from the output buffers in the second sector address space.
The above method is applied to insert the low and middle-end mobile phone with standard SD interface of described TF card, described application program is the JAVA program, the JAVA program is responsible for network service, by " writing " operation code stream is sent into described coprocessor, by " reading " operation decoded RGB or PCM data are read out from described coprocessor, carry out the playback of RGB and PCM by J2ME playback class function at last, control the synchronous of audio frequency and video simultaneously.JAVA program network communication process is specific as follows: handset starting JAVA program is connected to JAVA program provider server by wireless network, the audio, video data of JAVA program provider server after mobile phone sends coding carries out decompress(ion) and plays in mobile phone end by the audio, video data of said method coprocessor after to coding.
The present invention also provides a kind of system that realizes the IO expansion by standard SD memory interface, comprise a portable terminal with standard SD interface, a TF card that is inserted into the SD interface, expansion has a coprocessor on the described TF card, described TF card also comprises the flash storage space of being made up of the first sector address space and the second sector address space, the described first sector address space and the second sector address space are unified geocoding, the address table of second address space writes in the FAT32 file table in the first sector address space, when running of mobile terminal java program, the java program writes the second sector address space with pending data earlier, after coprocessor is handled, read data after the processing by the java program second sector address space again, the physical address that visits the second sector address space from the address table of java program by the second sector address space the FAT32 file table that is written into the first sector address space writes the second sector address space with data or from the second sector address space sense data.
Above-mentioned portable terminal is the low and middle-end mobile phone, and when mobile phone power-on, coprocessor all is added into automatic address table with the second sector address space in the FAT32 file table in the first sector address space.
Described coprocessor is responsible for decoding, the color space conversion of audio frequency and video, has following three kinds of mode of operations:
(1) multimedia decoder, under this mode of operation, because of video flowing is transferred to demoder through mobile phone MicroSD master bus, carry out the decoding of Voice ﹠ Video by demoder, upload to mobile phone through the MicroSD master bus again, under this mode of operation, total system all is in normal operating conditions except NAND Flash;
(2) TF storage card, total system is exactly a TF card under this mode of operation, and mobile phone can normally be visited the TF card and be carried out the storage read-write function.Under this pattern, the SDRAM storer reaches the function that has nothing to do with storage card and all is in the power saving sleep pattern, to reduce system power dissipation;
(3) standby, under this mode of operation, except the partial function cell operation to monitor that total system is in deep sleep mode the mobile phone MicroSD master control, reduce the stand-by power consumption and the leakage current of total system.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. one kind is passed through the method that standard SD memory interface is realized the IO expansion, said method comprising the steps of:
A. be integrated with the flash storage space at described TF card, and on the TF card, expand a coprocessor;
B. the address space with described flash storage space is divided into two sections: the first sector address space is the flash address space that is specifically designed to storage, and the second sector address space is to be specifically designed to the data that storage coprocessor and application program are carried out data communication;
C. unified addressing is carried out in the address of the first sector address space and the second sector address space storage space, wherein the first sector address spatial configuration FAT32 file table;
D. physical address map is arrived the file address, the address table that is about to the second sector address space writes in the FAT32 file table in the first sector address space;
E. application program visits the second sector address space physics address by the address table in the second sector address space in the FAT32 file table that is written into the first sector address space, simulate streaming communication, i.e. simulation " writing " operation and simulation " reading " operation of SDIO in the mode of file interface.
2. the method by standard SD memory interface realization IO expansion as claimed in claim 1, it is characterized in that: described step e further comprises:
E1: application program writes initialization procedure to the second sector address space, thus the initialization coprocessor;
E2: application program writes data in the input-buffer in the TF card second sector address space;
E3: application program is waited for the coprocessor deal with data, and coprocessor will be handled the back data storage in the empty output buffers of second sector address;
E4: application program reads data after the processing from the output buffers in the second sector address space.
3. the method that realizes the IO expansion by standard SD memory interface as claimed in claim 2, it is characterized in that: described method is applied to insert the low and middle-end mobile phone with standard SD interface of described TF card, described application program is the JAVA program, the JAVA program is responsible for network service, by " writing " operation code stream is sent into described coprocessor, by " reading " operation decoded RGB or PCM data are read out from described coprocessor, carry out the playback of RGB and PCM by J2ME playback class function at last, control the synchronous of audio frequency and video simultaneously.
4. the method that realizes the IO expansion by standard SD memory interface as claimed in claim 3, it is characterized in that: described coprocessor is a dsp processor, its software is stored among the NAND FLASH, described dsp processor encapsulates by SIP, whole SOC (system on a chip) is encapsulated into the TF card, meets MicroSD SpecificationVersion1.0 (SD card standard and compatible series one), during operation, DSP is from NAND FLASH bootstrapping, carries out after mirror image is loaded into SDRAM.
5. the method that realizes the IO expansion by standard SD memory interface as claimed in claim 3, it is characterized in that: JAVA program network communication process is specific as follows: handset starting JAVA program is connected to JAVA program provider server by wireless network, and JAVA program provider server sends audio, video data to mobile phone.
6. one kind is passed through the system that standard SD memory interface is realized the IO expansion, comprise a portable terminal with standard SD interface, a TF card that is inserted into the SD interface, it is characterized in that: expansion has a coprocessor on the described TF card, described TF card also comprises the flash storage space of being made up of the first sector address space and the second sector address space, the described first sector address space and the second sector address space are unified geocoding, the address table of second address space writes in the FAT32 file table in the first sector address space, when running of mobile terminal java program, the java program writes the second sector address space with pending data earlier, after coprocessor is handled, read data after the processing by the java program second sector address space again, the physical address that visits the second sector address space from the address table of java program by the second sector address space the FAT32 file table that is written into the first sector address space writes the second sector address space with data or from the second sector address space sense data.
7. the system that realizes the IO expansion by standard SD memory interface as claimed in claim 6, it is characterized in that: portable terminal is the low and middle-end mobile phone, when mobile phone power-on, coprocessor all is added into automatic address table with the second sector address space in the FAT32 file table in the first sector address space.
8. the system by standard SD memory interface realization IO expansion as claimed in claim 6, it is characterized in that: described coprocessor is responsible for decoding, the color space conversion of audio frequency and video, has following three kinds of mode of operations:
(1) multimedia decoder, under this mode of operation, because of video flowing is transferred to demoder through mobile phone MicroSD master bus, carry out the decoding of Voice ﹠ Video by demoder, upload to mobile phone through the MicroSD master bus again, under this mode of operation, total system all is in normal operating conditions except NAND Flash;
(2) TF storage card, total system is exactly a TF card under this mode of operation, and mobile phone can normally be visited the TF card and be carried out the storage read-write function, under this pattern, the SDRAM storer reaches the function that has nothing to do with storage card and all is in the power saving sleep pattern, to reduce system power dissipation;
(3) standby, under this mode of operation, except the partial function cell operation to monitor that total system is in deep sleep mode the mobile phone MicroSD master control, reduce the stand-by power consumption and the leakage current of total system.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910107567.8A CN101908028B (en) | 2009-06-02 | 2009-06-02 | Method and system for realizing input/output (IO) expansion through standard secure digital (SD) memory interface |
| PCT/CN2009/073591 WO2010139143A1 (en) | 2009-06-02 | 2009-08-28 | Method and system for realizing io expanding through standard sd memory interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910107567.8A CN101908028B (en) | 2009-06-02 | 2009-06-02 | Method and system for realizing input/output (IO) expansion through standard secure digital (SD) memory interface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101908028A true CN101908028A (en) | 2010-12-08 |
| CN101908028B CN101908028B (en) | 2012-09-05 |
Family
ID=43263492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910107567.8A Expired - Fee Related CN101908028B (en) | 2009-06-02 | 2009-06-02 | Method and system for realizing input/output (IO) expansion through standard secure digital (SD) memory interface |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101908028B (en) |
| WO (1) | WO2010139143A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722342A (en) * | 2012-05-23 | 2012-10-10 | 北京百纳威尔科技有限公司 | Method and device for expanding internal storage space and terminal |
| CN102779105A (en) * | 2011-11-17 | 2012-11-14 | 上海无先网络科技有限公司 | Method and module for realizing SDIO interface function in MicroSD (Secure Digital)/SD card interface |
| CN102970422A (en) * | 2012-11-09 | 2013-03-13 | 惠州Tcl移动通信有限公司 | Method for pulling out secure digital memory card (SD card) safely and mobile phone |
| CN109558072A (en) * | 2018-10-10 | 2019-04-02 | 建荣半导体（深圳）有限公司 | The memory expanding method, system, audio that audio plays chip play chip and storage device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007164355A (en) * | 2005-12-12 | 2007-06-28 | Matsushita Electric Ind Co Ltd | Non-volatile storage device, data reading method therefor, and data writing method therefor |
| US7747837B2 (en) * | 2005-12-21 | 2010-06-29 | Sandisk Corporation | Method and system for accessing non-volatile storage devices |
| CN101334758B (en) * | 2008-07-03 | 2011-09-07 | 国民技术股份有限公司 | Device and method for embedded system expanding memory space |
-
2009
- 2009-06-02 CN CN200910107567.8A patent/CN101908028B/en not_active Expired - Fee Related
- 2009-08-28 WO PCT/CN2009/073591 patent/WO2010139143A1/en active Application Filing
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102779105A (en) * | 2011-11-17 | 2012-11-14 | 上海无先网络科技有限公司 | Method and module for realizing SDIO interface function in MicroSD (Secure Digital)/SD card interface |
| CN102722342A (en) * | 2012-05-23 | 2012-10-10 | 北京百纳威尔科技有限公司 | Method and device for expanding internal storage space and terminal |
| CN102970422A (en) * | 2012-11-09 | 2013-03-13 | 惠州Tcl移动通信有限公司 | Method for pulling out secure digital memory card (SD card) safely and mobile phone |
| CN102970422B (en) * | 2012-11-09 | 2015-09-23 | 惠州Tcl移动通信有限公司 | A kind of safety that realizes extracts method and the mobile phone of SD card |
| CN109558072A (en) * | 2018-10-10 | 2019-04-02 | 建荣半导体（深圳）有限公司 | The memory expanding method, system, audio that audio plays chip play chip and storage device |
| CN109558072B (en) * | 2018-10-10 | 2022-03-25 | 建荣半导体（深圳）有限公司 | Storage space expansion method and system of audio playing chip, audio playing chip and storage device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101908028B (en) | 2012-09-05 |
| WO2010139143A1 (en) | 2010-12-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108701109A (en) | The methods, devices and systems of Plugin Mechanism for computer expansion bus | |
| US7827337B2 (en) | Sharing memory interface | |
| WO2008080323A1 (en) | Smart card for supporting high performance computation, mass storage, high speed transmission and new application | |
| JPWO2004077306A1 (en) | SDIO controller | |
| CN106453730A (en) | Smart card and terminal equipment | |
| CN102609741B (en) | A kind of method of exchanges data between mobile device and inside and outside portion storage card thereof | |
| CN113419679B (en) | Storage device, system-on-chip, electronic equipment and storage method | |
| CN101908028B (en) | Method and system for realizing input/output (IO) expansion through standard secure digital (SD) memory interface | |
| CN104850516A (en) | DDR frequency conversion design method and device | |
| CN202102425U (en) | Port conversion device | |
| CN103049403A (en) | Method for communication between embedded terminal device and cell phone | |
| CN201425750Y (en) | Micro SD card | |
| US20070080224A1 (en) | Interface converting apparatus | |
| CN101799881A (en) | TD-SCDMA communication card of SD card interface | |
| CN105793834A (en) | Transition-minimized low speed data transfer | |
| CN102509140A (en) | Composite memory card and realization method and terminal thereof | |
| CN203773953U (en) | System taking mobile phone as wireless storage | |
| WO2012009996A1 (en) | Memory device and smart-phone system | |
| CN215499011U (en) | Strong-expansion industrial gateway controller based on X86 architecture | |
| CN203025694U (en) | Expander for intelligent terminal | |
| CN101814007B (en) | Hard disk access method and system supporting highest hard disk transmission rate | |
| CN102082798B (en) | SDIO (secure digital input output) interface based multimedia information coprocessing equipment and communication method thereof | |
| CN104158623A (en) | S1 signal decoding method for SWP interface and circuit | |
| CN205003735U (en) | Intelligent travel management system | |
| CN214756393U (en) | RK 3399-based vehicle-mounted 5G intelligent gateway mainboard |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN RONGCHANG TIANXIA TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHENZHEN TEMOBI SCIENCE + TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 19, building 18, Changhong technology building, 518057 South twelve Road, South tech Zone, Nanshan District hi tech Zone, Guangdong, Shenzhen Patentee after: SHENZHEN TEMOBI TECHNOLOGY CO., LTD. Address before: 19, building 18, Changhong technology building, 518057 South twelve Road, South tech Zone, Nanshan District hi tech Zone, Guangdong, Shenzhen Patentee before: Shenzhen Temobi Science & Tech Development Co.,Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: RONGCHUANG TIANXIA (SHANGHAI) TECHNOLOGY DEVELOPME Free format text: FORMER OWNER: SHENZHEN RONGCHANG TIANXIA TECHNOLOGY CO., LTD. Effective date: 20150611 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150611 Address after: 200433 Shanghai City, Yangpu District Wei Road No. 6 room 502-8 Patentee after: World (Shanghai) Technology Development Co., Ltd. Address before: 19, building 18, Changhong technology building, 518057 South twelve Road, South tech Zone, Nanshan District hi tech Zone, Guangdong, Shenzhen Patentee before: SHENZHEN TEMOBI TECHNOLOGY CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20160602 |