US20020065001A1 - Joint socket device for memory cards - Google Patents
Joint socket device for memory cards Download PDFInfo
- Publication number
- US20020065001A1 US20020065001A1 US09/988,530 US98853001A US2002065001A1 US 20020065001 A1 US20020065001 A1 US 20020065001A1 US 98853001 A US98853001 A US 98853001A US 2002065001 A1 US2002065001 A1 US 2002065001A1
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- US
- United States
- Prior art keywords
- memory cards
- socket device
- connecting pins
- joint socket
- data interface
- 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.)
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- 230000015654 memory Effects 0.000 title claims abstract description 52
- 230000004044 response Effects 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0013—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers
- G06K7/0021—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers for reading/sensing record carriers having surface contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/82—Coupling devices connected with low or zero insertion force
- H01R12/85—Coupling devices connected with low or zero insertion force contact pressure producing means, contacts activated after insertion of printed circuits or like structures
- H01R12/88—Coupling devices connected with low or zero insertion force contact pressure producing means, contacts activated after insertion of printed circuits or like structures acting manually by rotating or pivoting connector housing parts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S439/00—Electrical connectors
- Y10S439/901—Connector hood or shell
- Y10S439/904—Multipart shell
- Y10S439/906—Longitudinally divided
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S439/00—Electrical connectors
- Y10S439/945—Adapter for pcb or cartridge
Definitions
- the present invention relates to a joint socket device for memory cards, and particularly to a socket device, which is possible for being inserted with a smart media card (SMC), a multimedia card (MMC), a secure digital memory card (SD) and a memory stick (MS) respectively.
- SMC smart media card
- MMC multimedia card
- SD secure digital memory card
- MS memory stick
- a portable personal apparatus such as a digital camera or a notebook computer is provided with a memory card for storing data. It is necessary to arrange a socket device to receive the memory card of the portable personal apparatus.
- the socket device provides a conduction part to connect with the memory card and a microprocessor in the portable personal apparatus.
- a SMC 10 is a large card with a small thickness
- a MMC 20 is smaller and thicker
- a SD 30 has the same area as the MMC 20 but much thicker
- the MS 40 has the smallest width and the largest length with a largest thickness.
- Each of the four memory cards at a facial side thereof is barely attached with different numbers of connection pieces 101 , 201 , 301 , 401 .
- connection pieces are passages for the memories in the memory cards in conjunction with foreign parts.
- Each of the connection pieces 101 of the SMC 10 has almost the same width as that of the respective connection piece 201 of the MMC 20 and a clearance between two neighboring connection pieces 101 is almost the same as that between two neighboring connection pieces 201 .
- the SD 30 has the connection pieces 301 thereof in a recess and a clearance between two adjacent ones for the 7 pieces at the middle section thereof is the same as that between two neighboring connection pieces 201 thereof.
- the connection pieces 401 of the MS 40 are also in a recess and provide a narrowest clearance between two adjacent ones thereof.
- All the four memory cards have a cut corner 102 , 202 , 302 , 402 respectively, the SD 30 further has a write protect switch 303 , and the MS 40 further has an anti-reversed insertion groove 403 .
- SMC 10 , MMC 20 , SD 30 and MS 40 provide a shape, size and the number of junctions thereof different from one another, the socket devices adapted to the preceding memory cards are different from one another in their configurations and in the number of conduction parts thereof.
- the conventional socket device is only made for one of the preceding memory cards and not for all kinds of memory cards so that it is inconvenient that more socket devices have to be offered in case of multiple types memory cards being used. In this way, more joints have to be arranged in the circuit of each conventional socket device and a large space has to be offered for the multiple socket devices too.
- An object of the present invention is to provide a joint socket device for memory cards, which is adapted to different types of memory cards to enhance the convenience while in use.
- Another object of the present invention is to provide a joint socket device for memory cards, which offers less connection points and a less gross size thereof than the conventional ones having the identical functions.
- FIGS. 1A, 1B, 1 C, 1 D are plan views of a smart media card (SMC), a multimedia card (MMC), a security digital memory card (SD), and a memory stick (MS) illustrating the appearance with thickness thereof respectively;
- SMC smart media card
- MMC multimedia card
- SD security digital memory card
- MS memory stick
- FIG. 2 is a perspective view of a joint socket device for memory cards according to the present invention in a first embodiment thereof;
- FIG. 3 is a perspective view illustrating a lower base and an upper covering of the joint socket device for memory cards shown in FIG. 1;
- FIG. 4 is a perspective view illustrating a lower base and an upper covering of the present invention in a second embodiment thereof;
- FIG. 5 is perspective view illustrating a lower base and an upper covering of the present invention in a third embodiment thereof;
- FIG. 6A is a fragmentary sectional view of the lower base in the third embodiment shown in FIG. 5;
- FIG. 6B is another fragmentary sectional view of the lower base in the third embodiment shown in FIG. 5;
- FIG. 7 is a sectional view illustrating an extendable connecting pin of the present invention.
- FIG. 8 is a block diagram for a circuit arranged in the present invention.
- FIG. 9 is another block diagram for a circuit arranged in the present invention.
- a first embodiment of the present invention provides a joint socket device 50 for memory cards, which comprises a lower base 51 and an upper covering 52 .
- the lower base 51 provides a top face 511 , a first recess part 512 and a second recess part 513 , and the second recess part 513 is deeper than the first recess part 512 .
- the first recess part 512 has a sensor switch 515 for identifying different smart media cards (SMCs) by way of distinguishing the position of the cut corner on the respective SMC while the SMCs are inserted into the common socket device 50 .
- SMCs smart media cards
- the second recess part 513 at a lateral side thereof has a slant corner 516 corresponding to the cut corner of the MMC and the SD, and at a narrow area 5131 thereof has a jut stop 517 corresponding to an anti-reversed insertion groove of the MS to prevent the MS from being inserted into the joint socket device 50 with the reversed side thereof.
- a sensor switch 518 is arranged at the rear end of the joint socket device 50 to detect whether the MS is inserted or not.
- the upper covering 52 has an inner face 521 , a first high part 522 and a second high part 523 , and the second high part 523 is higher than the first high part 522 .
- the upper covering 52 at both lateral sides thereof has two engaging holes 524 respectively for engaging with two projection pieces 514 at both of the lateral sides respectively so that the upper covering 52 and the lower base 51 can be associated with each other with the inner face 521 being touched to the top face 511 of the lower base 51 .
- part of the inner face 521 and the first recess part 512 constitute a first chamber for containing the SMC
- the first high part 522 and the first recess part 512 constitute a second chamber for containing the MMC
- the first high part 522 and the second recess part 513 constitute a third chamber for containing the SD.
- the narrow area 5231 of the second high part 523 and the rest area of the same part and the narrow area 5131 of the second recess part 513 and the rest area of the same part form a fourth chamber receiving the MS.
- the first high part 522 has a sensor switch 525 corresponding to a write protect of the SD and a lateral side opposite to the sensor switch 525 has a slant corner 526 corresponding to the slant corner 516 and the slant corner 526 is provided with a sensor switch 53 for the MMC and the SD.
- the sensor switch 53 comprises a first spring plate 531 and a second spring plate 532 with a respective end thereof touching to each other.
- the first spring plate 531 has a protrusion 533 extending outward through the slant corner 526 of the first high part 522 so that the slant corner 526 is pressed down by the MMC or the SD to retreat inward such that the first spring plate 531 is in state of separating from the second spring plate 532 as soon as the MMC or the SD is inserted into the first high part 522 .
- the narrow area 5231 of the second high part 523 provides a slant corner 527 corresponding to the cut corner of the MS.
- the joint socket device for a memory card according to the present invention at either the lower base or the upper covering thereof is required to provide a conduction part so as to correspond to connection plates on the SMC, the MMC, the SD and MS.
- the conduction part illustrated in the first embodiment of the present invention comprises a plurality of long connecting pins 54 , short connecting pins 55 and MS connecting pins 56 disposed at the lower base 51 . Then, the conduction part, i.e., all the connecting pins illustrated in the first embodiment of the present invention, can contact with the connection plate as soon as the SMC, the MMC, the SD, or the MS is inserted into the joint socket device.
- the memory card can connect with the circuit on a circuit substrate in a personal mobile device to perform an operation of read or write.
- each MS connection pin 56 can join an individual long connecting pin 54 or an individual short connecting pin 55 to use the output end jointly.
- the difference of a second embodiment of the present invention from the joint socket device is in that the MS connecting pins 56 and the jut stop 528 corresponding to the anti-reversed groove are located at the rear end of the second high part on the upper covering 52 .
- the second recess part of the lower base 51 has a slant corner 519 corresponding to the MS cut corner and the sensor switch 518 is disposed at another side opposite to the slant corner 519 .
- the connection plate of the MS faces the upper covering 52 to contact the MS pins 56 .
- FIGS. 5, 6A, and 6 B a third embodiment of the present invention is illustrated to provide a joint socket device.
- the difference of the joint socket device of present embodiment from the joint socket device illustrated in FIG. 4 is in that the second high part 523 of the upper covering 52 has the sensor switch at the rear end thereof to detect if the MS is inserted into the joint socket device or not, and the long and the short connecting pins 54 , 55 extend forward to the front end from the rear end of the lower base 51 with two adjacent long connecting pins among the connecting pins.
- a lifted rod is arranged at the second recess part 513 under the connecting pins to keep the connecting pins in pin slots before the SMC, the MMC, or the SD being inserted into the joint socket device.
- the lifted rod urges the connecting pins to move out from the pin slots and contact with the connection pieces of the SMC, the MMC, or the SD.
- the present embodiment illustrates that a first lifted rod 541 is pivotally connected under the long connecting pins 54 at the second recess part 513 and a second lifted rod 551 is pivotally connected under the short connecting pins 55 .
- the first lifted rod 541 and the second lifted rod 551 at both ends thereof provide a press lever 542 , 552 respectively in conjunction with a torsion spring 543 , 553 .
- the first lifted rod 541 has a longitudinal flat cut surface 5411 and the long connecting pins 54 are laid on the cut surface 5411 and in the pin slots 544 .
- the bottom of the SMC 10 may touch the press lever 542 on the cut flat surface 5411 and the press lever 542 is inclined toward a lateral side with the lifted rod 541 rotating an angular distance. Because the cut flat surface 5411 rotates an angular distance too, the rod body 5412 can push the long connecting pins 54 upward to touch the connection pieces of the SMC 10 . As soon as the SMC 10 is taken out from the joint socket device, the press lever 542 is free from the pressing force and restores to the original position with the longitudinal cut flat surface 5411 by way of the rebound force of the torsion spring 543 . Hence, the long connecting pins 54 moves backward into the pin slots 544 .
- the second lifted rod 551 has an arrangement almost the same as the first lifted rod 541 and provides the same movement as the first lifted rod 541 does. But, the second lifted rod 551 at the rod body thereof has recesses accommodating the long connecting pins 54 so that the second lifted rod 551 is not possible to urge the long connecting pins 54 upward during turning an angular distance.
- the join socket device of the present invention is required to provide a conduction part such as the connecting pins in the preceding embodiments.
- a further embodiment illustrates another conduction part in the joint socket device of the 5411 and the long connecting pins 54 are laid on the cut surface 5411 and in the pin slots 544 .
- the bottom of the SMC 10 may touch the press lever 542 on the cut flat surface 5411 and the press lever 542 is inclined toward a lateral side with the lifted rod 541 rotating an angular distance.
- the rod body 5412 can push the long connecting pins 54 upward to touch the connection pieces of the SMC 10 .
- the press lever 542 is free from the pressing force and restores to the original position with the longitudinal cut flat surface 5411 by way of the rebound force of the torsion spring 543 .
- the long connecting pins 54 moves backward into the pin slots 544 .
- the second lifted rod 551 has an arrangement almost the same as the first lifted rod 541 and provides the same movement as the first lifted rod 541 does. But, the second lifted rod 551 at the rod body thereof has recesses accommodating the long connecting pins 54 so that the second lifted rod 551 is not possible to urge the long connecting pins 54 upward during turning an angular distance.
- the join socket device of the present invention is required to provide a conduction part such as the connecting pins in the preceding embodiments.
- a further embodiment illustrates another conduction part in the joint socket device of the the conduction part of the joint socket device by way of the switch 611 of the SMC data interface connector 61 , the switch 621 of the MMC/SD data interface connector 62 or the switch 631 of the MS data interface connector 63 such that the SMC, the MMC, the SD, or the MS can be connected to the microprocessor 60 .
- the circuit comprises a microprocessor 60 connecting with a SMC data interface connector 61 , a MMC/SD data interface connector 62 and a MS data interface connector 63 , and contact points 57 for the sensor switches on the joint socket device.
- the SMC data interface connector 61 , the MMC/SD data interface connector 62 and the MS data interface connector 63 are connected to contact points 58 on the joint socket device so as to connect with the conduction parts on the lower base and the upper covering.
- the microprocessor 60 can detect the response signals of the sensor switches such that the SMC or the MS can be read or can read directly to check if the MMC/SD is inserted or not, and can determine to read or write the data in the SMC, the MMC, the SD or the MS by way of the SMC data interface connector 61 , the MMC/SD data interface connector 62 or the MS data interface connector 63 .
- the present invention provides a joint socket device for the SMC, the MMC, the SD and MS and it is possible to reduce to 34 contact points at most so as to achieve a purpose of saving contact points. Furthermore, the present invention provides a common receiving space for the SMC, the MMC, the SD and MS to save the gross volume required by these four socket devices independently. Accordingly, it is convenient that the SMC, the MMC, the SD and MS can be operated in a joint socket device and it is possible to save the production cost resulting from three extra conventional socket devices.
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Abstract
A joint socket device for memory cards provides a common lower base with an upper covering to offer a common space for receiving a smart media card (SMC), a multimedia card (MMC), a secure digital memory card (SD) and a memory stick (MS). The joint socket device is available for being inserted with four different memory cards without a need of offering four different socket devices so as to save contact points thereof, reduce the size occupied thereof, and facilitate the use thereof, respectively.
Description
- 1. Field of the Invention
- The present invention relates to a joint socket device for memory cards, and particularly to a socket device, which is possible for being inserted with a smart media card (SMC), a multimedia card (MMC), a secure digital memory card (SD) and a memory stick (MS) respectively.
- 2. Description of Related Art
- Usually, a portable personal apparatus such as a digital camera or a notebook computer is provided with a memory card for storing data. It is necessary to arrange a socket device to receive the memory card of the portable personal apparatus. The socket device provides a conduction part to connect with the memory card and a microprocessor in the portable personal apparatus. Referring to FIG. 1, a
SMC 10 is a large card with a small thickness, aMMC 20 is smaller and thicker, aSD 30 has the same area as theMMC 20 but much thicker, and the MS 40 has the smallest width and the largest length with a largest thickness. Each of the four memory cards at a facial side thereof is barely attached with different numbers ofconnection pieces connection pieces 101 of theSMC 10 has almost the same width as that of therespective connection piece 201 of theMMC 20 and a clearance between two neighboringconnection pieces 101 is almost the same as that between two neighboringconnection pieces 201. TheSD 30 has theconnection pieces 301 thereof in a recess and a clearance between two adjacent ones for the 7 pieces at the middle section thereof is the same as that between two neighboringconnection pieces 201 thereof. Theconnection pieces 401 of the MS 40 are also in a recess and provide a narrowest clearance between two adjacent ones thereof. All the four memory cards have acut corner SD 30 further has awrite protect switch 303, and the MS 40 further has ananti-reversed insertion groove 403. Because SMC 10, MMC 20, SD 30 and MS 40 provide a shape, size and the number of junctions thereof different from one another, the socket devices adapted to the preceding memory cards are different from one another in their configurations and in the number of conduction parts thereof. The conventional socket device is only made for one of the preceding memory cards and not for all kinds of memory cards so that it is inconvenient that more socket devices have to be offered in case of multiple types memory cards being used. In this way, more joints have to be arranged in the circuit of each conventional socket device and a large space has to be offered for the multiple socket devices too. - An object of the present invention is to provide a joint socket device for memory cards, which is adapted to different types of memory cards to enhance the convenience while in use.
- Another object of the present invention is to provide a joint socket device for memory cards, which offers less connection points and a less gross size thereof than the conventional ones having the identical functions.
- The present invention can be more fully understood by reference to the following description and accompanying drawings, in which:
- FIGS. 1A, 1B,1C, 1D are plan views of a smart media card (SMC), a multimedia card (MMC), a security digital memory card (SD), and a memory stick (MS) illustrating the appearance with thickness thereof respectively;
- FIG. 2 is a perspective view of a joint socket device for memory cards according to the present invention in a first embodiment thereof;
- FIG. 3 is a perspective view illustrating a lower base and an upper covering of the joint socket device for memory cards shown in FIG. 1;
- FIG. 4 is a perspective view illustrating a lower base and an upper covering of the present invention in a second embodiment thereof;
- FIG. 5 is perspective view illustrating a lower base and an upper covering of the present invention in a third embodiment thereof;
- FIG. 6A is a fragmentary sectional view of the lower base in the third embodiment shown in FIG. 5;
- FIG. 6B is another fragmentary sectional view of the lower base in the third embodiment shown in FIG. 5;
- FIG. 7 is a sectional view illustrating an extendable connecting pin of the present invention;
- FIG. 8 is a block diagram for a circuit arranged in the present invention; and
- FIG. 9 is another block diagram for a circuit arranged in the present invention.
- Referring to FIGS. 2 and 3, a first embodiment of the present invention provides a
joint socket device 50 for memory cards, which comprises alower base 51 and anupper covering 52. Thelower base 51 provides atop face 511, afirst recess part 512 and asecond recess part 513, and thesecond recess part 513 is deeper than thefirst recess part 512. Thefirst recess part 512 has asensor switch 515 for identifying different smart media cards (SMCs) by way of distinguishing the position of the cut corner on the respective SMC while the SMCs are inserted into thecommon socket device 50. Thesecond recess part 513 at a lateral side thereof has aslant corner 516 corresponding to the cut corner of the MMC and the SD, and at anarrow area 5131 thereof has ajut stop 517 corresponding to an anti-reversed insertion groove of the MS to prevent the MS from being inserted into thejoint socket device 50 with the reversed side thereof. Asensor switch 518 is arranged at the rear end of thejoint socket device 50 to detect whether the MS is inserted or not. Theupper covering 52 has aninner face 521, a firsthigh part 522 and a secondhigh part 523, and the secondhigh part 523 is higher than the firsthigh part 522. The upper covering 52 at both lateral sides thereof has twoengaging holes 524 respectively for engaging with twoprojection pieces 514 at both of the lateral sides respectively so that theupper covering 52 and thelower base 51 can be associated with each other with theinner face 521 being touched to thetop face 511 of thelower base 51. Thus, part of theinner face 521 and thefirst recess part 512 constitute a first chamber for containing the SMC, the firsthigh part 522 and thefirst recess part 512 constitute a second chamber for containing the MMC, and the firsthigh part 522 and thesecond recess part 513 constitute a third chamber for containing the SD. Thenarrow area 5231 of the secondhigh part 523 and the rest area of the same part and thenarrow area 5131 of thesecond recess part 513 and the rest area of the same part form a fourth chamber receiving the MS. The firsthigh part 522 has asensor switch 525 corresponding to a write protect of the SD and a lateral side opposite to thesensor switch 525 has aslant corner 526 corresponding to theslant corner 516 and theslant corner 526 is provided with asensor switch 53 for the MMC and the SD. Thesensor switch 53 comprises afirst spring plate 531 and asecond spring plate 532 with a respective end thereof touching to each other. Thefirst spring plate 531 has aprotrusion 533 extending outward through theslant corner 526 of the firsthigh part 522 so that theslant corner 526 is pressed down by the MMC or the SD to retreat inward such that thefirst spring plate 531 is in state of separating from thesecond spring plate 532 as soon as the MMC or the SD is inserted into the firsthigh part 522. Thus, it can be learned if the MMC or the SD has been inserted into thejoint socket device 50. Thenarrow area 5231 of the secondhigh part 523 provides aslant corner 527 corresponding to the cut corner of the MS. The joint socket device for a memory card according to the present invention at either the lower base or the upper covering thereof is required to provide a conduction part so as to correspond to connection plates on the SMC, the MMC, the SD and MS. The conduction part illustrated in the first embodiment of the present invention comprises a plurality of long connectingpins 54, short connectingpins 55 andMS connecting pins 56 disposed at thelower base 51. Then, the conduction part, i.e., all the connecting pins illustrated in the first embodiment of the present invention, can contact with the connection plate as soon as the SMC, the MMC, the SD, or the MS is inserted into the joint socket device. Hence, the memory card can connect with the circuit on a circuit substrate in a personal mobile device to perform an operation of read or write. - There are two adjacent short connecting pins, which are among the long and the short connecting
pins second recess part 513, extend rearward in an ascending way from the front end of the socket device, and a respective contact point at the other ends of the two short connecting pins is a little higher than the bottom of thefirst recess part 512 so as to touch the connection plate of the SMC, MMC or SD. When the MS is inserted into the socket device, the long connectingpins 54 and the short connectingpins 55 are pressed down to enter the pin grooves in thesecond recess part 513 without interfering the MS. TheMS connecting pins 56 is disposed at the rear end ofsecond recess part 513 for touching the connection plate of the MS. EachMS connection pin 56 can join an individual long connectingpin 54 or an individual short connectingpin 55 to use the output end jointly. - Referring to FIG. 4, the difference of a second embodiment of the present invention from the joint socket device is in that the
MS connecting pins 56 and thejut stop 528 corresponding to the anti-reversed groove are located at the rear end of the second high part on theupper covering 52. The second recess part of thelower base 51 has aslant corner 519 corresponding to the MS cut corner and thesensor switch 518 is disposed at another side opposite to theslant corner 519. At this time, the connection plate of the MS faces the upper covering 52 to contact theMS pins 56. - Referring to FIGS. 5, 6A, and6B, a third embodiment of the present invention is illustrated to provide a joint socket device. The difference of the joint socket device of present embodiment from the joint socket device illustrated in FIG. 4 is in that the second
high part 523 of theupper covering 52 has the sensor switch at the rear end thereof to detect if the MS is inserted into the joint socket device or not, and the long and the short connectingpins lower base 51 with two adjacent long connecting pins among the connecting pins. In order to prevent the connecting pins from blocking the thicker MS as soon as the thicker MS is inserted into the chamber, a lifted rod is arranged at thesecond recess part 513 under the connecting pins to keep the connecting pins in pin slots before the SMC, the MMC, or the SD being inserted into the joint socket device. When the lifted rod is touched by the SMC, the MMC, or the SD during the SMC, the MMC, or the SD being inserted into the joint socket device, the lifted rod urges the connecting pins to move out from the pin slots and contact with the connection pieces of the SMC, the MMC, or the SD. The present embodiment illustrates that a first liftedrod 541 is pivotally connected under the long connectingpins 54 at thesecond recess part 513 and a second liftedrod 551 is pivotally connected under the short connecting pins 55. The first liftedrod 541 and the second liftedrod 551 at both ends thereof provide apress lever torsion spring rod 541 has a longitudinalflat cut surface 5411 and the long connectingpins 54 are laid on thecut surface 5411 and in thepin slots 544. As soon as the memory card such as aSMC 10 is inserted into the joint socket device, the bottom of theSMC 10 may touch thepress lever 542 on the cutflat surface 5411 and thepress lever 542 is inclined toward a lateral side with the liftedrod 541 rotating an angular distance. Because the cutflat surface 5411 rotates an angular distance too, therod body 5412 can push the long connectingpins 54 upward to touch the connection pieces of theSMC 10. As soon as theSMC 10 is taken out from the joint socket device, thepress lever 542 is free from the pressing force and restores to the original position with the longitudinal cutflat surface 5411 by way of the rebound force of thetorsion spring 543. Hence, the long connectingpins 54 moves backward into thepin slots 544. Similarly, the second liftedrod 551 has an arrangement almost the same as the first liftedrod 541 and provides the same movement as the first liftedrod 541 does. But, the second liftedrod 551 at the rod body thereof has recesses accommodating the long connectingpins 54 so that the second liftedrod 551 is not possible to urge the long connectingpins 54 upward during turning an angular distance. - The join socket device of the present invention is required to provide a conduction part such as the connecting pins in the preceding embodiments. As shown in FIG. 7, a further embodiment illustrates another conduction part in the joint socket device of the5411 and the long connecting
pins 54 are laid on thecut surface 5411 and in thepin slots 544. As soon as the memory card such as aSMC 10 is inserted into the joint socket device, the bottom of theSMC 10 may touch thepress lever 542 on the cutflat surface 5411 and thepress lever 542 is inclined toward a lateral side with the liftedrod 541 rotating an angular distance. Because the cutflat surface 5411 rotates an angular distance too, therod body 5412 can push the long connectingpins 54 upward to touch the connection pieces of theSMC 10. As soon as theSMC 10 is taken out from the joint socket device, thepress lever 542 is free from the pressing force and restores to the original position with the longitudinal cutflat surface 5411 by way of the rebound force of thetorsion spring 543. Hence, the long connectingpins 54 moves backward into thepin slots 544. Similarly, the second liftedrod 551 has an arrangement almost the same as the first liftedrod 541 and provides the same movement as the first liftedrod 541 does. But, the second liftedrod 551 at the rod body thereof has recesses accommodating the long connectingpins 54 so that the second liftedrod 551 is not possible to urge the long connectingpins 54 upward during turning an angular distance. - The join socket device of the present invention is required to provide a conduction part such as the connecting pins in the preceding embodiments. As shown in FIG. 7, a further embodiment illustrates another conduction part in the joint socket device of the the conduction part of the joint socket device by way of the
switch 611 of the SMCdata interface connector 61, theswitch 621 of the MMC/SDdata interface connector 62 or theswitch 631 of the MSdata interface connector 63 such that the SMC, the MMC, the SD, or the MS can be connected to themicroprocessor 60. - Referring to FIG. 9, another embodiment of the circuit in the present invention is illustrated. The circuit comprises a
microprocessor 60 connecting with a SMCdata interface connector 61, a MMC/SDdata interface connector 62 and a MSdata interface connector 63, and contact points 57 for the sensor switches on the joint socket device. The SMCdata interface connector 61, the MMC/SDdata interface connector 62 and the MSdata interface connector 63 are connected to contactpoints 58 on the joint socket device so as to connect with the conduction parts on the lower base and the upper covering. When the SMC and or the MS is inserted into the joint socket device, themicroprocessor 60 can detect the response signals of the sensor switches such that the SMC or the MS can be read or can read directly to check if the MMC/SD is inserted or not, and can determine to read or write the data in the SMC, the MMC, the SD or the MS by way of the SMCdata interface connector 61, the MMC/SDdata interface connector 62 or the MSdata interface connector 63. - It can be understood that it is required56 contact points totally while a respective conventional socket device is inserted with the SMC, the MMC, the SD and MS uniquely. It is appreciated that the present invention provides a joint socket device for the SMC, the MMC, the SD and MS and it is possible to reduce to 34 contact points at most so as to achieve a purpose of saving contact points. Furthermore, the present invention provides a common receiving space for the SMC, the MMC, the SD and MS to save the gross volume required by these four socket devices independently. Accordingly, it is convenient that the SMC, the MMC, the SD and MS can be operated in a joint socket device and it is possible to save the production cost resulting from three extra conventional socket devices.
- While the invention has been described with reference to preferred embodiments thereof, it is to be understood that modifications or variations may be easily made without departing from the spirit of this invention, which is defined by the appended claims.
Claims (17)
1. A joint socket device for memory cards, comprising:
a lower base with a top face, providing a first recess part and a second recess part, and the second recess part having a narrow area; and
an upper covering with a recess face, providing a first high part and a second high part, being joined to the lower base so as to form a first chamber, a second chamber, a third chamber and a fourth chamber, and a common part being included in the first chamber, the second chamber, the third chamber and the fourth chamber respectively;
wherein, a conduction part is arranged on the lower base to join a plurality of connection pieces provided on each of the memory cards and a plurality of sensor switches are provided on the lower base for detecting each of the memory cards.
2. The joint socket device for memory cards according to claim 1 , wherein said upper covering provides a conduction part to join a plurality of connection pieces provided on each of the memory cards and provides a plurality of sensor switches for detecting each of the memory cards.
3. The joint socket device for memory cards according to claim 2 , wherein said conduction part is composed of a plurality of connecting pins.
4. The joint socket device for memory cards according to claim 3 , wherein said connecting pins includes a plurality of short connecting pins and a plurality of long connecting pins with an arrangement of two of the short connecting pins being adjacent to each other and the rest ones of the short connecting pins and all the long connecting pins being alternately disposed; and the connecting pins extend rearward from a front end of the lower base and part of the connecting pins being in the second recess part to extend rearward in an ascending way with a respective touch end thereof a little higher than a bottom of the first recess part for contacting with the respective memory card.
5. The joint socket device for memory cards according to claim 4 , wherein a plurality of additional connecting pins extend from a rear end of the lower base to a rear end of the second recess part, and the narrow area of the second recess part has a slant corner with a jut stop.
6. The joint socket device for memory cards according to claim 4 , wherein said upper covering provides a conduction part for connecting with the connection pieces on each of the memory cards and provides a plurality of sensor switches for detecting each of the memory cards; and a plurality of further connecting pins are disposed in the second high part of the upper covering with an end of the another ones extending outward from a rear end of the upper covering, and the second high part has a narrow area with a slant corner at a rear end of the narrow area with another jut stop.
7. The joint socket device for memory cards according to claim 2 , wherein said sensor switches include a write protect switch.
8. The joint socket device for memory cards according to claim 3 , wherein said connecting pins include a plurality of short connecting pins and a plurality of long connecting pins with an arrangement of two of the long connecting pins being adjacent to each other and the rest ones of the long connecting pins and all the short connecting pins being alternately disposed; said upper covering provides a conduction part for connecting with the connection pieces on each of the memory cards and provides a plurality of sensor switches for detecting each of the memory cards; the connecting pins extend forward from a rear end of the lower base, and a first lifted rod is pivotally connected at the second recess part under the long connecting pins and a second lifted rod is pivotally connected under the short connecting pins; and multiple ones of the connecting pins are disposed in the second high part of the upper covering with an end of the multiple ones extending outward from a rear end of the upper covering, and the second high part has a narrow area with slant corner at a rear end of the narrow area with another jut stop.
9. The joint socket device for memory cards according to claim 2 , wherein one of the sensor switches comprises two spring plates with a respective end thereof contacting with each other with the first spring plate having a projection extending outward the upper covering through a lateral side of the first high part.
10. The joint socket device for memory cards according to claim 8 , wherein said first and said second lifted rods at both ends thereof respectively have a press lever with a torsion spring and have a flat longitudinal cut surface respectively with the respective press lever being attached to the cut surface; and the second lifted rod provides a plurality of cut grooves corresponding the long connecting pins at spots touching the long connecting pins.
11. The joint socket device for memory cards according to claim 1 , wherein the conduction part provides a plurality of openings for a plurality of extendable connecting pins moving out and contacting with the connection pieces of the respective memory card.
12. The joint socket device for memory cards according to claim 1 , wherein the second recess part is deeper than the first recess part, and second high part is higher than the first high part.
13. The joint socket device for memory cards according to claim 2 , wherein the second recess part is deeper than the first recess part, and the second high part is higher than first high part.
14. A circuit in a joint socket device for memory cards, comprising:
a microprocessor;
a plurality of sensor switches as defined in claim 2 , each of the sensor switches having a junction connecting with the microprocessor;
a SMC data interface connector with two ends, one of the ends connecting with the microprocessor and the other end thereof connecting with a first switch;
a MMC/SD data interface with two ends, one of the ends connecting with the microprocessor and the other end thereof connecting with a second switch;
a MS data interface connector with two ends, one of the ends connecting with the microprocessor and the other end thereof connecting with a third switch;
a common junction, connecting with the first, the second and the third switches respectively; and
a conduction part, connecting with the common junction;
whereby, as soon as a smart media card (SMC) a multimedia card (MC), secure digital memory card (SD), or a memory stick (MS) is inserted into the joint socket device, the microprocessor can detect response signals from the sensor switches to determine a connection with the conduction part by way of the SMC data interface connector, the MMC/SD data interface connector or the MS data interface connector such that the SMC, the MMC/SD or the MS can be treated by the microprocessor.
15. The joint socket device for memory cards according to claim 14 , wherein said upper covering provides a conduction part for connecting with the connection pieces on each of the memory cards and provides a plurality of sensor switches for detecting each of the memory cards
16. A circuit in a joint socket device for memory cards, comprising:
a microprocessor;
a plurality of sensor switches as defined in claim 2 , each of the sensor switches having a junction connecting with the microprocessor;
a SMC data interface connector with two ends, one of the ends connecting with the microprocessor;
a MMC/SD data interface with two ends, one of the ends connecting with the microprocessor;
a MS data interface connector with two ends, one of the ends connecting with the microprocessor;
a common junction, connecting with the other ends of the SMC data interface connector, the MMC/SD data interface and the MS data interface connector, respectively; and
a conduction part, being disposed on a lower base and an upper covering of the common socket device respectively, and connecting with the common junction;
whereby, as soon as a smart media card (SMC), a multimedia card (MC), secure digital memory card (SD), or a memory stick (MS) is inserted into the common socket device, the microprocessor can detect response signals from the sensor switches to determine a connection with the conduction part by way of the SMC data interface connector, the MMC/SD data interface connector or the MS data interface connector such that the SMC, the MMC/SD or the MS can be treated by the microprocessor.
17. The joint socket device for memory cards according to claim 1 , wherein said upper covering provides a conduction part for connecting with the connection pieces on each of the memory cards and provides a plurality of sensor switches for detecting each of the memory cards.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW90215711U | 2000-11-27 | ||
TW090215711U TW495110U (en) | 2000-11-27 | 2000-11-27 | Common seat for memory card |
TW90215711 | 2000-11-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
US6386920B1 US6386920B1 (en) | 2002-05-14 |
US20020065001A1 true US20020065001A1 (en) | 2002-05-30 |
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ID=21686438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/988,530 Expired - Lifetime US6386920B1 (en) | 2000-11-27 | 2001-11-20 | Joint socket device for memory cards |
Country Status (2)
Country | Link |
---|---|
US (1) | US6386920B1 (en) |
TW (1) | TW495110U (en) |
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Also Published As
Publication number | Publication date |
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US6386920B1 (en) | 2002-05-14 |
TW495110U (en) | 2002-07-11 |
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