CN1831851A

CN1831851A - Interface for a removable electronic device

Info

Publication number: CN1831851A
Application number: CN 200510098665
Authority: CN
Inventors: 何宏哲; 谢详安; 余金龙
Original assignee: DABA ELECTRONIC Co Ltd; JIZHIRITONG CARD CO Ltd; WANGUO COMPUTER CO Ltd; XIWANG SCIENCE AND TECHNOLOGY Co Ltd; Ruicheng Science & Technology Co Ltd; Industrial Technology Research Institute ITRI; Asustek Computer Inc
Current assignee: DABA ELECTRONIC Co Ltd; JIZHIRITONG CARD CO Ltd; WANGUO COMPUTER CO Ltd; XIWANG SCIENCE AND TECHNOLOGY Co Ltd; Ruicheng Science & Technology Co Ltd; Industrial Technology Research Institute ITRI; Asustek Computer Inc; Richip Inc
Priority date: 2004-09-07
Filing date: 2005-09-07
Publication date: 2006-09-13
Also published as: CN100465933C; CN1790305A

Abstract

A removable electronic device having an application module for transferring data to or from a host having a plurality of contact terminals, the device comprising a first row of contact pads, each of the contact pads of the first row including a substantially tapered end, and a second row of contact pads, each of the contact pads of the second row including a substantially tapered end that corresponds to the substantially tapered end of at least one of the contact pads of the first row in an interweaving relationship, wherein the first and second rows of contacts pads are configured to receive the plurality of contact terminals.

Description

The interface of removable electronic device

Technical field

The present invention relates to removable electronic device, more particularly, relate to drawing out type memory card standards and method thereof.

Background technology

Storage card is many known small-sized Portable encapsulation that contain digital storage, for instance, and nonvolatile storage (for example flash memory, EPROM, EEPROM (Electrically Erasable Read Only Memory)) array. Storage card has generally become for the device that stores from the huge data bytes such as other electronic installation of personal computer, notebook computer, personal digital assistant, mobile phone, camera and support drawing out type data memory device.

In general, storage card comprises and is positioned at its lip-deep electric contact that exposes, in order to can be connected to easily in the jack of main electronic system or device (especially portable apparatus) and remove from this jack. The someone designs several memory card standards, and it comprises ordered MultiMedia Card (MMC) standard of MultiMedia Card Association (MMCA) company that is positioned at California Cupertino. MMC is a kind of small-sized, drawing out type storage card, and it can be used to store and obtain the digital information in small-sized, the low-power device. MMC has been used in many mobile electronic application products, for example music player, mobile phone, personal digital assistant (PDA), digital camera, recorder and GPS navigation device. MMCA has developed and has adjusted its open industrywide standard, also the MMC of all kinds is defined as the industrywide standard that can cross over multiple host platform and market simultaneously. Physics and the electrical specification of MMC is published among " The MultiMedia Card System Specification ", and it is by MMCA timely replacement and bulletin.

Another kind of known drawing out type memory card standards is USB (USB), but this standard is not limited to storage device. USB is a kind of high-speed serial bus, and it can support various devices, for example printer, keyboard, scanner, indicator device and PDA. USB has become a kind of standard in computer circle, because this agreement can be utilized interconnect a plurality of devices and have very high user friendly of minimum connection. USB is defined by Universal Serial Bus Specification, by USB Implementers Forum, Inc. write and control, USB Implementers Forum, Inc. are by the one group of non-profit group that company is founded that is responsible for exploitation USB specification. This part specification contains all aspects of USB operation, and it comprises electrically, mechanicalness and communication feature and specification be interior. Wherein important feature of USB is that it allows peripheral unit to store and relevant information itself, and this information is provided when main frame requires. This practice can be exempted the demand that this main frame (it may be computer, operating system or application program) keeps this information of many different devices. Or rather, this device itself can store and provide this information.

In the evolution of storage card, we wish that storage card reduces power consumption and higher access speed is provided, and still possesses backwards-compatible ability with existing agreement (for example MMC and USB specification) simultaneously.

Summary of the invention

This paper discloses a kind of drawing out type memory card standards of novelty. Standard of the present invention comprises Detection Techniques and the compatible demand of hardware interface simultaneously. Moreover this novel standard is backwards-compatible to be used in MMC and USB.

According to the specific embodiment of the invention, provide a kind of have application module in order to transfer of data to main frame or transmission from the removable electronic device of host data, this main frame has a plurality of contact terminals, this device comprises; First row contact contact, each above-mentioned these contact contact all comprises gradually smalls end of essence in this first row; And secondary series contact contact, each above-mentioned these contact contact all comprises gradually smalls end of essence in this secondary series, it can be with the relation of interweaving corresponding to the essence of one of them above-mentioned these contact contact in this first row smalls end gradually, and wherein above-mentioned these first and second row contact contact all can be configured to take in above-mentioned these a plurality of contact terminals.

Further according to the present invention, provide a kind of have application module in order to transfer of data to main frame or the transmission removable electronic device from host data, it comprises; Shell, it has top surface, basal surface and on every side; Be formed at multiple row on this shell top surface contact contact that interweaves; Essence U-shaped depressed part on being positioned at around this shell; And be positioned at recess on the corner of this shell, when being used to this device and being connected to main frame this device is fixed to this main frame.

In addition, according to the present invention, provide a kind of have application module in order to transfer of data to main frame or transmission from the removable electronic device of host data, it comprises; Shell, it has top surface, basal surface and on every side; Essence U-shaped depressed part on being positioned at around this shell; And be positioned at recess on the corner of this shell, when being used to this device and being connected to main frame this device is fixed to this main frame.

Again, according to the present invention, provide a kind of have application module in order to transfer of data to main frame or transmission from the removable electronic device of host data, it comprises; Shell, it has top surface, basal surface and on every side; Be formed at multiple row on this shell top surface contact contact that interweaves; And the essence U-shaped depressed part on being positioned at around this shell.

Again, according to the present invention, provide a kind of have application module in order to transfer of data to main frame or transmission from the removable electronic device of host data, it comprises; Shell, it has top surface, basal surface and on every side; Be formed at multiple row on this shell top surface contact contact that interweaves; And be positioned at recess on the corner of this shell, when being used to this device and being connected to main frame this device is fixed to this main frame.

In explanation hereinafter, additional features of the present invention and advantage will be partly proposed, and from this explanation, a wherein part will be understood, but perhaps by carrying out also acquistion of the present invention. Can understand and reach characteristics of the present invention and advantage by the special element that proposes in the claim of enclosing with combination.

Will be appreciated that above summary description and detailed description hereinafter all only supply to present a demonstration and explain the invention that it does not limit this paper is advocated.

Incorporating in this specification and consisting of this specification wherein the accompanying drawing institute of a part is graphic is a wherein specific embodiment of the present invention, and it can be used to explain principle of the present invention together with this explanation.

Description of drawings

Read with reference to accompanying drawing, can understand better the content that discloses previously of the present invention and detailed description hereinafter. For reaching illustration purpose of the present invention, each Tu Litu is shown with each better specific embodiment of existing genus. So should be appreciated that accurate configuration mode and the apparatus of the present invention shown in being not limited to.

In each is graphic:

Figure 1A, 1B and 1C are the functional-block diagram of the general application of the storage card of one specific embodiment according to the present invention;

Fig. 2 is the method flow diagram that one specific embodiment is used for surveying operational mode according to the present invention;

Fig. 3 is another flow chart that one specific embodiment is used for the method for detection operational mode according to the present invention;

Fig. 4 A is the pin configuration figure of the removable electronic device that one specific embodiment is advised according to the present invention;

Fig. 4 B is the pin configuration figure of the removable electronic device that another specific embodiment is advised according to the present invention;

Fig. 5 is the schematic diagram of the removable electronic device of one specific embodiment according to the present invention; And

Fig. 6 A and 6B are the exemplary electronic devices according to the specific embodiment of the invention.

The main element description of symbols

30 removable electronic devices

32 IF pattern detector

34 MMC Setup Controllers

35 interleavers

36 USB physical layer circuit

37 USB Setup Controllers

38 application modules

40 main frames

42 buses

100 removable electronic devices

102 recesses

104 sides adjacent

106 sides adjacent

120 removable electronic devices

122 recesses

124 depressed parts

126 depressed parts

The specific embodiment

For reaching task of explanation, various clear and definite details are proposed in order to understand more up hill and dale specific embodiments of the invention in this detailed description. But, the personage who has the knack of present technique will find do not have these clear and definite details also can realize specific embodiments of the invention. In other example, can show each structure and device with the form of block diagram. Moreover the particular order that the personage who has the knack of present technique just can understand performance herein and method carried out therewith easily is only for explanation, and the present invention is also contained various variations sequentially, and still drops among the spirit and category of the specific embodiment of the invention.

Figure 1A, 1B and 1C are the functional-block diagram of general application of the removable electronic device 30 of one specific embodiment according to the present invention. Electronic installation 30 (being called temporarily the Mu card) can support to be compatible with the operational mode of one of them kind in the application such as USB and MMC, CF (compact flash), SM (intelligent media) and SD (secure digital). For instance, the USB compatibility mode comprises USB 2.0 to be used, and the MMC compatibility mode then comprises a kind of in using of MMC 4.0 or MMC SPI (serial-peripheral interface). For reaching the simplification purpose, below only set forth the MMC compatibility mode in the specific embodiment. The personage who has the knack of present technique will understand that, but the present invention's equivalent application is to CF, SM, SD isotype.

Electronic installation 30 comprises 1,4,8 or 16 interface, and the low-voltage support of 5V/3.3V/1.8V can be provided, and has zero-power during standby. In addition, electronic installation 30 can be supported approximately the wide bandwidth from 50KB/s to 120MB/s. On the contrary, MMC 4.0 supports the transmission of 1,4 or 8 bit data, and maximal rate is 52MB/s; USB 2.0 supports that then maximal rate is the transfer of data of 60MB/s. As a result, electronic installation 30 can provide high-speed applications, and possesses simultaneously at least and use relevant backwards-compatible ability with USB, MMC, MMC SPI etc.

Figure 1A is the functional-block diagram that runs on the electronic installation 30 in the USB pattern. With reference to Figure 1A, electronic installation 30 comprises interface (IF) pattern detector 32, multimedia card (MMC) Setup Controller 34, interleaver 35, USB (USB) physical layer (PHY) circuit 36, USB Setup Controller 37 and application module 38. When electronic installation 30 was inserted in the main frame 40, IF pattern detector 32 can be surveyed operational mode, in order to distinguish MMC pattern, USB pattern or Mu pattern. Main frame 40 (for instance, notebook computer, personal computer (PC), mobile phone, tablet PC, personal digital assistant (PDA) or digital code camera (DV)/digital camera (DSC)) may comprise the calculating punch (not shown) in order to take in (receive) electronic installation 30. In this specific embodiment, IF pattern detector 32 can be surveyed main frame 40 (with electronic installation 30 persons of linking to each other) and whether meet the USB specification. USB Setup Controller 37 can reportedly be failed at shared bus 42 upper domination numbers of 38 of main frame 40 and application modules by USB PHY circuit 36. Application module 38 is decided on the operational mode of survey row, can be used as memory or I/O (I/O) interface.

Figure 1B is the functional-block diagram that runs on the electronic installation 30 in the Mu pattern. With reference to Figure 1B, IF pattern detector 32 can be surveyed main frame 40 (with electronic installation 30 persons of linking to each other) and whether meet the Mu specification. USB Setup Controller 37 can be by the transfer of data of 38 of interleaver 35 main control systems 40 and application modules. Interleaver 35 can be staggered into calling certain function or the program in another function or the program, and this interleaver 35 can convert 16 bit data to USB Setup Controller 37 discernible serial datas, or reverse conversion. Thus, between interleaver 35 bridge joint Mu buses and UTMI (USB 2.0 Transceiver Macrocell Interface (USB 2.0 the Transceiver Macrocell Interfaces)) bus. UTMI (its be developed to define above-mentioned these physical layer circuit of USB 2.0 and the interface specification of above-mentioned these logical layer circuit of part) can facilitate 480Mbps in (HS) pattern at a high speed message transmission rate, this speed can keep again backwards-compatible in USB 1.1 standards simultaneously far above the speed of USB 1.1.

Fig. 1 C is the functional-block diagram that runs on the electronic installation 30 in the MMC pattern. With reference to Fig. 1 C, IF pattern detector 32 can be surveyed main frame 40 (with electronic installation 30 persons of linking to each other) and whether meet the MMC specification. The transfer of data that MMC Setup Controller 34 meeting main control systems 40 and application module are 38. Wherein a kind of below the MMC application comprises: MMC 4.0,1,4 or 8 interfaces; Or MMC is SPI, 1 interface.

Fig. 2 is the method flow diagram that one specific embodiment is used for surveying operational mode according to the present invention. With reference to Fig. 2, in device end, can open in step 50 place main frame 40 (with electronic installation 30 persons of linking to each other). Can survey the supply voltage VDD of main frame 40 in step 52 place, in order to judge whether VDD is equal to or greater than USB and uses needed voltage level. Usually, USB use the voltage level range that can move approximately between 4.5V (volt) between the 5.5V, the voltage level that MMC or Mu application can move is then about 1.8V or 3.3V. In a specific embodiment wherein, if the VDD level of main frame 40 is equal to or greater than 4.4V, be USB 2.0 just can decide operational mode in step 54 execution. If it is that Mu uses or MMC uses that the VDD level of main frame 40, then can determine operational mode less than 4.4V.

Then, can judge in step 56 place whether the command signal CMD0 that main frame 40 sends is received by electronic installation 30. Can be in preset time period in step 58 place probe command signal CMD0. If surpass Preset Time, in step 60 place, just main frame 40 can be closed or " being suspended " to save power supply. If do not surpass Preset Time, just can continue to survey this command signal. When receiving orders signal, can judge in step 62 place just whether this command signal represents that Mu uses. If this command signal is not the Mu command signal, just can be that MMC uses in fixed this operational mode of step 64 execution. If determining this command signal is the Mu command signal, in step 66 place, be that Mu uses just electronic installation 30 can respond main frame 40 these operational modes. Then, in step 68 place, electronic installation 30 can wait for that just one section Preset Time (for instance, 8 clock pulses) is to carry out synchronously. In general, this clock pulse speed depends upon main frame speed and system's clock pulse. Then, in step 70 place, electronic installation 30 just can switch to the Mu interface so that step 72 place carries out the Mu application.

Fig. 3 is another flow chart that one specific embodiment is used for the method for detection operational mode according to the present invention. With reference to Fig. 3, in host side, main frame 40 can be sent to electronic installation 30 with Mu command signal Mu CMD0 in step 80 place. In step 82 place, if electronic installation 30 does not send response signal, just main frame 40 can send in step 84 place MMC command signal MMC CMD0, be used to step 86 place and represent that this operational mode is that MMC uses. In step 82 place, if electronic installation 30 is replied the Mu response signal, just main frame 40 can send in step 88 place the clock pulse (for instance, 8 clock pulses) of predetermined number, in order to carry out synchronously. Electronic installation 30 can switch to the Mu pattern in step 90 place. In step 92 place, electronic installation 30 can send a signal to main frame 40 according to circumstances, in order to represent Preparation For Use of Mu interface.

For instance, command signal MMC CMD0 and Mu CMD0 be defined by respectively 6 following byte formats " 40h, 00h, 00h, 00h, 00h, 95h " reach " 40h, 4Dh, 55h, BFh, B2h, AAh]. Moreover the Mu response signal then is defined by 6 following byte formats " 19h, [4 byte operational factor], FFh ".

Fig. 4 A is the pin assignment figure of the removable electronic device that one specific embodiment is advised according to the present invention. With reference to Fig. 4 A, all pins at device end place all remain on HiZ (high impedance) state, until determine the operational mode between main frame and this removable electronic device. Concerning MMC 4.0 patterns, the first pin of this removable electronic device (namely, DAT 3) is defined by in order to MMC 4.0 patterns are switched to MMC SPI pattern, and it is defined among the MMC specification. What the second pin of Mu interface modes (namely, DAT 8) then was used for confirming selecting is MMC pattern or Mu interface modes. The 14 of the USB pattern then is a pair of data-signal with the 15 pin (namely, D+ and D-), and it can be used to judge whether the USB pattern is selected. This is a complementary pair to data-signal (D+, D-), and wherein when wherein one was in the high levels place, another one just was in the low level place. SIMM (single edge contact memory module) card is used pin 18,19,20 reservations. Therefore, removable electronic device of the present invention can be supported MMC compliant applications, USB compliant applications and Mu interface application, and keeps the elasticity that is applicable to the SIMM application simultaneously.

Interface protocol example of the present invention is described as follows:

1.SYNC hurdle

(1) 1-position: DAT=0b

(2) 4-position: DAT[3:0]=xxx0b

(3) 8-position: DAT[7:0]=xxxxxxx0b

(4) 16-position: DAT[15:0]=xxxxxxxxxxxxxxx0b

Wherein " x " expression and the condition of this protocol-independent.

2.PID hurdle

(1) 1-position: LSB is preferential

DAT＝PID[0]PID[1]PID[2]PID[3]nPID[0]nPID[1]nPID[2]nPID[3]

(2) 4-position:

DAT[3:0]＝PID[3:0]nPID[3:0]

(3) 8-position:

DAT[7:4]=PID[3:0] oppositely

DAT[3:0]＝PID[3:0]

Wherein " nPID " is expressed as the reverse signal of PID. The pid data trade fair is subject to the retrodirective mirror data protection of PID and nPID. Controller in host side and the device end should be verified the legitimacy of PID. The PID code surely should be in the following Table 1.

Table 1 PID code

The PID type	The PID title	PID<3:0>	Explanation
The PID type	The PID title	PID<3:0>	Explanation	Mark	OUT IN SOF SETUP	0001B 1001B 0101B 1101B	Address+end period during main frame to function is concluded the business
Function address+end period to the host transaction
Function address+end period to the host transaction	Frame start mark and frame number
The main frame of setting up control channel address+end period to the function transaction	Frame start mark and frame number
	Data	DATA0 DATA1 DATA2 MDATA	0011B 1011B 0111B 1111B				Data packet PID idol
Data packet PID is strange							Data packet PID idol
Data packet PID is strange				Data packet PID high speed, the transaction of high bandwidth isochronism in little frame
Data packet PID high-speed separation and the transaction of high bandwidth isochronism
				Friendship is held	ACK NAK STALL NYET	0010B 1010B 1110B 0110B	The recipient receives the error-free data package
Accepting device can't accept data and transmission equipment can't transmit data							The recipient receives the error-free data package
	End point stops or the request of control channel is not supported
Respond without the recipient
Respond without the recipient	Special	PRE ERR SPLIT PING Reserved	1100B 1100B 1000B 0100B 0000B				The header of (mark) main frame issue. The activation downstream bus is communicated to low-speed device
(friendship is held) separate trading mistake is handed over and is held (re-using the PRE value)
				(mark) high-speed separation transactional marking
(mark) assembled/controlled the high velocity stream control of end point and survey				(mark) high-speed separation transactional marking
				Keep PID

^*Annotate: the PID position shows with the MSb sequence, when USB transmits, at first transmits this rightmost position (position 0).

3. address, end point, CRC5 hurdle

(1) address=＞7, ADDR[6:0]

(2) end point=＞4, EndP[3:0]

(3) Token CRC=＞5, TCRC[4:0]

{ADDR[6:0]&EndP[3]}+{EndP[2:0]&TCRC[4:0]}

Wherein TCRC is 5 Token CRC, and the CRC on the Mu card then is option.

If start CRC, just crc check can be present in main frame and the device simultaneously. Yet, if cancellation CRC produces CRC just interleaver is necessary for the USB controller. Because preset value is cancellation CRC, thus when cancelling CRC just without any the CRC hurdle.

4.EOP hurdle

(1) 1-position: DAT0=1b

(2) 4: DAT[3:0]=xxx1b

(3) 8: DAT[7:0]=xxxxxxx1b

(4) 16: DAT[15:0]=xxxxxxxxxxxxxxx1b

Wherein condition " is ignored " in " x " expression. For solving idol in the 16 bit patterns transaction/odd byte problem, can be in the b[15 on EOP hurdle] in adding OddByte position. If OddByte=1, so DATA[15:8] in last byte be illegal. If OddByte=0, so DATA[15:0] in last word group be legal.

5. marking package form

Marking package is comprised of SYNC and the EOP of 3 bytes. At least 1,4 of marking package supports and 8 bit patterns.

(1) 1: (LSB is preferential)

SYNC+PID+ADDR+ENDP+CRC5+EOP

(2) 4: DAT[3:0] }

SYNC+PID+not(PID)+A[3:0]+{ENDP[0]&A[6:4]}+{CRC0& ENDP[3:1]}+CRC[5:1]+EOP

(3) 8 bit patterns: DAT[7:0] }

SYNC+{not(PID)&PID}+{EP[0]&A[6:0]}+{TCRC[4:0]& EP[3:1]}+EOP

5.1. the initial form of frame

SYNC+{not(PID)&PID}+{FN[10:3]}+{FN[2:0]&TCRC[4:0]}+ EOP

Wherein FN represents frame number.

6. data packet form

6.1. data field form

(i) 1: (LSB is preferential)

DAT0

Byte N-1 byte N byte N+1

(ii) 4

DAT3 DAT2 DAT1 DAT0

Byte N-1 byte N byte N+1

(iii) 8

DAT7 DAT0

(iv) 16

DAT15 DAT8 DAT7 DAT0

Wherein 16 bit patterns only use in data packet.

6.2. data packet form

SYNC+{not(PID)&PID}+{DAT[7:0]}*(0～1024)+{DCRC[15:8]}+ {DCRC[7:0]}+EOP

Wherein DCRC is 16 polynomial data CRC:X16+X15+X2+1 (SEED=800Dh)

7. hand over and hold the package form

(1) 1: (LSB is preferential)

SYNC+PID+EOP

(2) 4: DAT[3:0] }

SYNC+PID+not(PID)+EOP

(3) 8 bit patterns: DAT[7:0] }

SYNC+{not(PID)&PID}+EOP

8. special package form

8.1. echo (Ping) form

(i) 1: (LSB is preferential)

SYNC+PID+ADDR+ENDP+CRC5+EOP

(ii) 4: DAT[3:0] }

SYNC+PID+not(PID)+A[3:0]+{ENDP[0]&A[6:4]}+{CRC0& ENDP[3:1]}+CRC[5:1]+EOP

(iii) 8 bit patterns: DAT[7:0] }

SYNC+{not(PID)&PID}+{EP[0]&A[6:0]}+{TCRC[4:0]& EP[3:1]}+EOP

9. transport-type

Above-mentioned these transport-types are that the USB standard is intrinsic, and it comprises (1) control, (2) interruption, (3) gathering (Bulk) and (4) isochronism (Isochronous).

10. signal integrity

Signal in this bus or transfer of data have 3 kinds of protected species:

(1) PID can be subject to the retrodirective mirror protection of PID and nPID. Wherein nPID is the reverse signal of PID.

(2) the initial meeting of marking package and frame is subject to the CRC5 protection, and (SEED) is as follows for its multinomial and data source:

X5+X2+1 with SEED＝01100b

(3) data packet can be subject to the CRC16 protection, and (SEED) is as follows for its multinomial and data source:

X16+X15+X2+1 with SEED＝800Dh

11. highway width and setting

This device can be provided power supply in 1 mode bus place. Main frame can set 1 (initially), 4,8 or 16 highway widths are used to the operation of place, two ends.

(1) 1: (1), special (1), data (1) are held in mark (1), friendship.

(2) 4: (4), special (4), data (4) are held in mark (4), friendship.

(3) 8: (8), special (8), data (8) are held in mark (8), friendship.

(4) 16: (8), special (8), data (16) are held in mark (8), friendship.

Fig. 4 B is the pin configuration figure of the removable electronic device that another specific embodiment is advised according to the present invention. Different with 20 pin configuration of 16 application shown in Fig. 4 A is that Fig. 4 B is graphic to be 3 pin configuration of 8 application. The 11 of the USB pattern defines for D-and D+ respectively with the 12 pin, can be used for judging whether this USB pattern is selected. Moreover pin 11,12, the 13rd should be used for defining for the SIMM card.

Fig. 5 is the schematic diagram of the removable electronic device 100 of one specific embodiment according to the present invention. With reference to Fig. 5, electronic installation 100 comprises recess 102 in left upper, misplugs into electronic installation 100 in order to avoiding. In addition, recess 102 and relevant anti-parts can reach the backwards-compatible purpose that MMC and USB use, otherwise but but not so. In a mode wherein, recess 102 can be with the identical angle of essence (about 45 degree) and sides adjacent 104 and 106 crossing.

Electronic installation 100 also comprises a plurality of contact contacts that interweave 1 to 20, its correspondence be the pin shown in Fig. 4 A. Interleaving design in above-mentioned these contact contacts allows to occur extra pin in identical area. Therefore, also can use varying number contact contact. Link to each other with memory circuit chip (not shown)s in the electronic installation 100 above-mentioned these contact the contact be along front 104 and recess 102 places 20 recess places of top surface. Above-mentioned these contact contacts can be divided into first row and secondary series. Each above-mentioned these contact contact comprises gradually thin end of essence, cause can by they essence gradually the smalls end by the correspondence contact contact of the contact contact alignment secondary series of first row. Above-mentioned these essence gradually smalls end can smoothly contact the contact terminal of this main frame.

Fig. 6 A and 6B are the schematic diagram of the removable electronic device 120 of one specific embodiment according to the present invention. Fig. 6 A is the top view with electronic installation 120 of shell (unnumbered). With reference to Fig. 6 A, this shell comprises top surface, basal surface and on every side. Electronic installation 120 comprises recess 122 and is positioned at this shell depressed part 124 of upper essence " U-shaped " on every side, to allow to produce the design of low clearance. In particular, depressed part 124 can allow the calculating punch (not shown) in the main frame catch electronic installation 120 and by depressed part 124 fixed electronic device 120, be different from known application and utilize the bulkiness of storage card to fix its position in main frame. Thus, the design of the recess of storage card of the present invention can reduce considering of storage card design, and can minimize the design of memory card. Accordingly, also can minimize calculating punch height in the main frame.

Except a plurality of the interweaving that is arranged in first row and secondary series contacts the contact (unnumbered), electronic installation 120 also comprises and extends across first row to the contact contact 128 of secondary series. In a specific embodiment wherein, first row contact contact contacts add up to 20 of contact with secondary series.

Fig. 6 B is the upward view of electronic installation 120. With reference to Fig. 6 B, electronic installation 120 comprises a plurality of extra depressed parts 126 on every side, in order to allow electronic installation 120 admittedly be locked to the shell at host computer side place.

The personage of the technology of being familiar with should namely understand and can change above-mentioned every specific embodiment, and unlikely inventive concepts departing from its broad sense. Therefore, should be appreciated that the present invention is not limited to the certain specific embodiments of this paper disclosure, and be to contain ownership as carry afterwards spirit of the present invention and the interior modification project of scope that each claim defined.

Claims

One kind have application module in order to transfer of data to main frame or the transmission removable electronic device from the data of main frame, this main frame has a plurality of contact terminals, it is characterized in that this device comprises:

First row contact contact, each above-mentioned these contact contact all comprises gradually smalls end of essence in this first row; And

Secondary series contact contact, each above-mentioned these contact contact all comprises gradually smalls end of essence in this secondary series, and it can be with the relation of interweaving corresponding to the essence of one of them above-mentioned these contact contact in this first row smalls end gradually,

Wherein above-mentioned these first and second row contact contact all can be configured to take in above-mentioned these a plurality of contact terminals.
2. device according to claim 1 is characterized in that further comprising the contact contact, extends across above-mentioned these first and second row and contacts the contact.
3. device according to claim 1 is characterized in that further comprising the essence U-shaped depressed part on being positioned at around this removable electronic device.
4. device according to claim 1 is characterized in that further comprising the recess in the corner that is formed at this removable electronic device.
5. device according to claim 1 is characterized in that first row contact contact contacts add up to 13 of contact with secondary series.
6. device according to claim 1 is characterized in that first row contact contact contact in the contact one of them individual with secondary series be should be used for defining for the single edge contact memory module.
7. device according to claim 1, it is one of following to it is characterized in that wherein application module comprises: memory or I/O (I/O) interface.
One kind have application module in order to transfer of data to main frame or transmission from the removable electronic device of host data, it is characterized in that comprising:

Shell, it has top surface, basal surface and on every side;

Be formed at multiple row on this shell top surface contact contact that interweaves;

Essence U-shaped depressed part on being positioned at around this shell; And

Be positioned at the recess on this shell corner, when being used to this device and being connected to main frame this device be fixed to this main frame.
9. device according to claim 8, the contact contact comprises first row contact contact and secondary series contacts the contact to it is characterized in that interweaving above-mentioned these multiple rows, each all has gradually smalls end of essence in this first row contact contact, and it can be corresponding to one of them essence smalls end gradually in this secondary series contact contact.
10. device according to claim 8 is characterized in that further comprising a plurality of contacts contact of using for single edge contact memory module (SIMM) card.
11. device according to claim 8, it is one of following to it is characterized in that wherein application module comprises: memory or I/O (I/O) interface.
12. one kind have application module in order to transfer of data to main frame or transmission from the removable electronic device of host data, it is characterized in that comprising:

Shell, it has top surface, basal surface and on every side;

Essence U-shaped depressed part on being positioned at around this shell; And

Be positioned at the recess on this shell corner, when being used to this device and being connected to main frame this device be fixed to this main frame.
13. device according to claim 12, it is characterized in that further comprising multiple row interweave the contact contact, comprise first row contact contact and secondary series contact contact, each all has gradually smalls end of essence in this first row contact contact, and it can be corresponding to one of them essence smalls end gradually in this secondary series contact contact.
14. device according to claim 12, it is one of following to it is characterized in that wherein application module comprises: memory or I/O (I/O) interface.
15. one kind have application module in order to transfer of data to main frame or transmission from the removable electronic device of host data, it comprises:

Shell, it has top surface, basal surface and on every side;

Be formed at multiple row on this shell top surface contact contact that interweaves; And

Essence U-shaped depressed part on being positioned at around this shell.
16. device according to claim 15, the contact contact comprises first row contact contact and secondary series contacts the contact to it is characterized in that interweaving above-mentioned these multiple rows, each all has gradually smalls end of essence in this first row contact contact, and it can be corresponding to one of them essence smalls end gradually in this secondary series contact contact.
17. device according to claim 15 is characterized in that further comprising the recess that is positioned on this shell corner, when being used to this device and being connected to main frame this device is fixed to this main frame.
18. device according to claim 15, it is one of following to it is characterized in that wherein application module comprises: memory or I/O (I/O) interface.
19. one kind have application module in order to transfer of data to main frame or transmission from the removable electronic device of the data of main frame, it is characterized in that comprising:

Shell, it has top surface, basal surface and on every side;

Be formed at multiple row on this shell top surface contact contact that interweaves; And

Be positioned at the recess in the corner of this shell, when being used to this device and being connected to main frame this device be fixed to this main frame.
20. device according to claim 19, the contact contact comprises first row contact contact and secondary series contacts the contact to it is characterized in that interweaving above-mentioned these multiple rows, each all has gradually smalls end of essence in this first row contact contact, and it can be corresponding to one of them essence smalls end gradually in this secondary series contact contact.
21. device according to claim 19 is characterized in that further comprising the essence U-shaped depressed part on being positioned at around this shell.
22. device according to claim 19, it is one of following to it is characterized in that wherein application module comprises: memory or I/O (I/O) interface.