Card with a Plurality of Subscriber Identity Module Cards
This invention relates to a card with a number of Subscriber Identity Module (SIM) cards, in particular such SIM cards suitable for use with mobile telecommunication devices, such as mobile phones.
SIM cards are removable smart cards, which are available in two standard sizes, the first of which being of a standard credit card (i.e. 85.60mm x 53.98 mm x 0.76 mm), while its more popular version (called a "Plug-In SIM card") being of a dimension of 25 mm x 15 mm x 0.76 mm. SIM cards store securely the key identifying a mobile phone service subscriber. The SIM card allows users to change phones easily by removing the SIM card from a first mobile phone and inserting it into a second mobile phone, thereby eliminating the need for activation of the second mobile phone on the network. In the context of this invention, the term "SIM card" also covers Universal Subscriber
Identity Module (USIM) card and Removable User Identity Module (R-UIM) card.
Before such Plug-In SIM cards are installed in a mobile phone, each Plug-In SIM card is linked to a substrate card whose dimensions conform with the relevant international standards, e.g. as given in International Standard ISO/IEC 7816, the contents of which are incorporated herein by reference.
When the Plug-In SIM cards are required for use, they are broken off from the respective substrate card, whereupon the remaining substrate card will be discarded. As the dimensions and physical characteristics of SIM cards are meticulously specified in the relevant international standards, the machines for manufacturing and installing SIM cards is also highly standardized, and there is very little room for change. However, as can be seen from the above, discarding the substrate cards after detachment of the Plug-In SIM cards is a wastage of resources. It is thus an object of the present invention to provide a card carrying a plurality of Plug-In SIM cards, in which the aforesaid shortcoming is mitigated, or at least to provide a useful alternative to the public.
According to the present invention, there is provided a card with dimensions conforming
with the requirements of ISO/IEC 7816-1 and 7816-2, wherein said card carries from three to eight Plug-In Subscriber Identity Module (SIM) cards, wherein said card has two opposite longer edges and two opposite shorter edges, and wherein a first recess is provided at substantially a mid-point of one of said longer edges, characterized in that a second recess is provided at substantially a mid-point of one of said shorter edges.
Embodiments of the present invention will now be described, by way of examples only, with reference to the accompanying drawings, in which:
Fig. 1 is a top view of a card carrying eight Plug-In SIM cards according to a first embodiment of the present invention;
Fig. 2 is a top view of a card carrying seven Plug-In SIM cards according to a second embodiment of the present invention;
Fig. 3 is a top view of a card carrying six Plug-In SIM cards according to a third embodiment of the present invention;
Fig. 4 is a top view of a card carrying five Plug-In SIM cards according to a fourth embodiment of the present invention;
Fig. 5 is a top view of a card carrying four Plug-In SIM cards according to a fifth embodiment of the present invention;
Fig. 6 is a top view of a card carrying three Plug-In SIM cards according to a sixth embodiment of the present invention;
Fig. 7 is a perspective view of a substrate card for forming a card according to the present invention;
Fig. 8 is a top view of the substrate card of Fig. 7 formed with a number of stepped depressions;
Fig. 9 is a perspective view of the substrate card of Fig. 8;
Fig. 10 shows a SIM integrated circuit (IC) module to be embedded onto the substrate card of Fig. 8;
Fig. 11 is a perspective view of the substrate card of Fig. 8 embedded with eight SIM IC modules;
Fig. 12 shows die-cutting out a Plug-In SIM card from the card of Fig. 11;
Fig. 13 shows placement of cut-out Plug-In SIM cards in pockets of a length of plastic bag; and
Fig. 14 shows steps of personalization of a Plug-In SIM card by using a carrier card.
Fig. 1 shows a plastic substrate card 100 carrying eight Plug-In SIM cards 102 in which all the contact surfaces of the Plug-In SIM cards 102 are on a same side of the substrate card 100. Dimensions of the substrate card 100 conform with the requirements of ISO/IEC 7816-1 and 7816-2, and in compliance with GSM 11.11.
The substrate card 100 is in the general shape of a rectangle with two opposite longer edges 104 and two opposite shorter edges 106. Each longer edge 104 is perpendicular to and adjacent the two shorter edges 106, and each shorter edge 106 is perpendicular to and adjacent the two longer edges 104. At a mid-point along one of the longer edges 104 is formed a V-shaped recess 108; and at a mid-point along one of the shorter edges 106 is also formed a V-shaped recess 110.
Fig. 2 shows a substrate card 200 carrying seven Plug-In SIM cards 202. Fig. 3 shows a substrate card 300 carrying six Plug-In SIM cards 302. Fig. 4 shows a substrate card 400 carrying five Plug-In SIM cards 402. Fig. 5 shows a substrate card 500 carrying four Plug-In SIM cards 502. Fig. 6 shows a substrate card 600 carrying three Plug-In SIM cards 602. The material, structure and dimensions of the substrate cards 200, 300, 400, 500, 600 are the same as those of the substrate card 100, the only difference being the number of Plug-In SIM cards 102, 202, 302, 402, 502, 602 carried by the respective substrate cards 100, 200, 300, 400, 500, 600.
A method of forming a plurality of Plug-In SIM cards according to this invention will be described below, in the exemplary context of a substrate card 100 carrying eight Plug-In SIM cards 102, and it should be readily understood that the same method can be used in the context of a substrate card carrying from three to seven Plug-In SIM cards.
A plastic substrate card 100 whose dimensions conforming to the requirements of ISO/IEC 7816-1 and 7816-2, and in compliance with GSM 11.11, as shown in Fig. 7, is provided. Eight generally square stepped depressions 120 are formed on one major surface 122 of the substrate card 100 by milling or injection molding. At a mid-point along one of the longer edges 104 is formed a V-shaped recess 108, and at a mid-point along one of the shorter edges 106 is also formed a V-shaped recess 110. These V-shaped recesses 108, 110
are provided for ensuring proper placement, alignment and orientation of the substrate card 100 in a card magazine (loader) (not shown) for subsequent processes and procedures.
Subsequent to the formation of the stepped depressions 120 on the substrate card 100, and as shown in Fig. 10, a SIM integrated circuit (IC) card module 125 is embedded in each respective stepped depression 120, e.g. by hot-melt tape method. When each of the eight stepped depressions 120 on the substrate card 100 is embedded with a respective SIM IC module 125, a substrate card 100 carrying eight Plug-In SIM cards 102 is formed, as shown in Fig. 11.
A punching machine 128 then cuts out from the substrate card 100 a number of Plug-In SIM cards 126 conforming to the conventional dimensions and shape by die-cut punching, as shown in Fig. 12. For proper storage of the cut-out Plug-In SIM cards 126, a length of plastic bag 130 with a number of pockets 132 are provided, each for storing one of the cut-out Plug-In SIM cards 126.
For effecting personalization of the cut-out Plug-In SIM cards 126, and as shown in Fig. 14, each Plug-In SIM card 126 is inserted into a depression 134 on a major surface 146 of a carrier card 136. The dimensions of the carrier card 136 also conform to the requirements of ISO/IEC 7816-1 and 7816-2, but it may be thicker than 0.76mm, such as 1mm. The depression 134 of the carrier card 136 is sized and configured to receive a Plug-In SIM card 126.
In addition, and similar to the substrate card 100 discussed above, the carrier card 136 is in the general shape of a rectangle with two opposite longer edges 138 and two opposite shorter edges 140. Each longer edge 138 is perpendicular to and adjacent the two shorter edges 140, and each shorter edge 140 is perpendicular to and adjacent the two longer edges 138. At a mid-point along one of the longer edges 138 is formed a V-shaped recess 142; and at a mid-point along one of the shorter edges 140 is also formed a V-shaped recess 144. These V-shaped recesses 142, 144 are provided for ensuring proper placement, alignment and orientation of the carrier card 136 (and thus of the Plug-In SIM card 126 releasably engaged therewith) in the subsequent personalization process.
The carrier card 136 releasably engaged with the Plug-In SIM card 126 is then personalized by a card personalization machine. After this process, the personalized Plug-In SIM card 126 is then removed from the depression 134 of the carrier card 136.
It should be understood that the above only illustrates examples whereby the present invention may be carried out, and that various modifications and/or alterations may be made thereto without departing from the spirit of the invention.
It should also be understood that certain features of the invention, which are, for clarity, described in the context of separate embodiments, may be provided in combination in a single embodiment. Conversely, various features of the invention which are, for brevity, described in the context of a single embodiment, may also be provided separately or in any appropriate sub-combinations.