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EP0555992A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Data adapter for a radiotelephone

Assignee: Nokia Oyj
•
Filing: 1993-02-04
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Granted: —
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Expires: 2013-02-04
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Abstract

Abstract A data adapter (2) for a mobile telephone (1) of the type intended to have a subscriber identity module (SIM) inserted therein and capable of supporting a short message service (SMS). The adapter includes means for coupling to the telephone so that data can be transferred therebetween. The coupling means includes a connector configured as a standard SIM, i.e. designed to fit in the SIM interface (3) of the telephone (1). The adapter itself includes means (6,7) for receiving a SIM such that data can be read from or written to the SIM. Means are included in the adapter for converting received data into SMS format thereby enabling the mobile telephone to be used for receiving/transmitting data messages other than normal SMS messages. A data input/output (8) may be provided on the adapter for connection to an external data terminal, e.g. a PC.

Inventors

  • 👤 Matti Jokimies

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-01 01:43
CPC Classifications
H; H04; H04W; H04W88/00; H04W88/02; H04B; H04B1/00; H04B1/38

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 100 words
A data adapter for a radiotelephone having means for removably receiving a Subscriber Identity Module (SIM), wherein information may be transferred between the telephone and a SIM present in the receiving means, the adapter comprising: means for coupling the adapter to the telephone whereby data may be transferred between the telephone and the adapter, the coupling means including a connector adapted to fit the SIM receiving means of the telephone; means for removably receiving a SIM card enabling data to be transferred between a SIM present therein and the coupling means; and means for processing data transferred to the adapter.
Claim 2
Dependent Claim 40 words
A data adapter as claimed in claim 1, wherein data messages of a first type are transferred directly between the SIM receiving means and the coupling means, and data messages of a second type are processed by the processing means.
Claim 3
Dependent Claim 25 words
A data adapter as claimed in claim 1 or claim 2, capable of supporting bidirectional data transfer between the adapter and a telephone coupled thereto.
Claim 4
Dependent Claim 25 words
A data adapter as claimed in claim 1 or claims 2, capable of supporting unidirectional data transfer between the adapter and a telephone coupled thereto.
Claim 5
Dependent Claim 23 words
A data adapter as claimed in any of the preceding claims, including memory means for storing data processed by said data processing means.
Claim 6
Dependent Claim 22 words
A data adapter as claimed in any of the preceding claims, wherein the connector has the shape and configuration of a SIM.
Claim 7
Dependent Claim 24 words
A data adapter as claimed in any of the preceding claims, wherein data is transferred using a 7-bit character code as the character set.
Claim 8
Dependent Claim 25 words
A data adapter as claimed in claim 7, wherein the bits are encoded such that one byte is represented by two characters in hexadecimal code.
Claim 9
Dependent Claim 34 words
A data adapter as claimed in any of the preceding claims, including means for coupling the adapter to an external data terminal whereby data may be exchanged between the data terminal and the adapter.

References Cited (Backward Citations)

EP0424263A1 Cited

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