Electrical connectors – Energy cell substitution device including plural contacts or...
Reexamination Certificate
1999-06-28
2001-01-30
Abrams, Neil (Department: 2839)
Electrical connectors
Energy cell substitution device including plural contacts or...
C379S433020
Reexamination Certificate
active
06179649
ABSTRACT:
CLAIM OF PRIORITY
This application makes reference to, incorporates the same herein, and claims all benefits accruing under 35 U.S.C. §119 from an application entitled SIM CARD INCORPORATED IN BATTERY PACK OF TERMINAL earlier filed in the Korean Industrial Property Office on Jun. 27, 1998, and there duly assigned Ser. No. 98-24602.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a terminal, such as a portable telephone, and more particularly, to a SIM (Subscriber Identity Module) card storing subscriber-related information data, which is located within a battery pack of the terminal, preferably being detachably inserted into the terminal.
2. Description of the Related Art
There are three general digital cellular systems, namely GSM (Global System for Mobile) which is a European TDMA (Time Division Multiple Access) system, NA-TDMA (North American TDMA), and CDMA (Code Division Multiple Access).
GSM is an international standard, offering compatibility throughout diverse telecommunications networks and has been implemented in Europe and countries in other continents.
A terminal in the GSM system includes a SIM card. The SIM card stores most of the information needed for operating a terminal, including data representing a telephone number, a network number, and subscriber information, such as subscriber ID.
SIM cards are available in two types, namely a postage stamp type (see U.S. Pat. No. 5,320,552) and a credit card type. The postage stamp type SIM card is detachably inserted into a SIM card contact device after a battery pack is removed from the body of the terminal. The SIM card contact device is then mounted onto the terminal body.
Conventional SIM cards, regardless of their type, typically occupy a relatively large area, which is contradictory to the current trend toward manufacturing more compact, lightweight terminals.
In the postage stamp type SIM card, a SIM card reader is installed on a main PCB(Printed Circuit Board) of a body and the SIM card is electrically connected to the SIM card reader by means of a SIM card contact device. Consequently, the SIM card reader and contact device occupy a relatively large area on the body of the terminal, limiting the compactness of the terminal body, thereby decreasing product competitiveness.
In the credit card type SIM card, the SIM card is pushed between the terminal body and a battery pack for installation, resulting in decreased contact reliability and also presenting an inconvenience to the user.
SUMMARY OF THE INVENTION
To overcome the aforementioned problems, an object of the present invention is to provide a SIM card (module type or IC type) which is incorporated in a battery pack, resulting in a more compact terminal design.
To achieve the above object, a SIM card is provided in a terminal using a battery. In the terminal, a terminal body has a main PCB (Printed Circuit Board), an interface connector connected to the main PCB, and at least a pair of first SIM card connecting terminals along with charging terminal, both being integrally formed with the interface connector and exposed from a body base. A battery pack is detachably mounted on the base of the terminal body, a SIM card reader is built in the battery pack, a SIM card contact device is fixed to the SIM card reader and has a cover and a plurality of terminals connected to the SIM card reader, for holding a SIM card. The SIM card of the present invention is preferably a postage stamp type SIM card and is slidably inserted under the cover of the SIM card contact device, and at least a pair of second SIM card connecting terminals are electrically connected to the SIM card reader and exposed at the positions corresponding to the first SIM card connecting terminals on a base of the battery pack, for electrically connecting the SIM card in the battery pack to the main PCB of the terminal body.
REFERENCES:
patent: 5320552 (1994-06-01), Reichardt et al.
patent: WO 97 08907 (1997-03-01), None
European Search Report, EP 99 10 76 70, Nov. 25, 1999.
Abrams Neil
Byrd Eugene G.
Dilworth & Barrese LLP
Samsung Electronics Co,. Ltd.
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