Sagem Sa

Sagem Mobiles

Jean-Marc Dimech

Marc Porato

Francis Sykes

Fr&eacute;d&eacute;ric Heurtaux

Laurent Marjollet

Rapha&euml;l Alos

Jean-Paul Thierry

Rafa&euml;l Alos

Yves Portalier

Yves Cabinet C Schmit Et Associés Portalier

Laurent Cabinet C Schmit & Associés Marjollet

A data transmission module for transmitting data between a radio communication network that transmits data at a specified rate and data processing means includes network interface radio means for interfacing the data processing means with the radio communication network, data adapter means interposed between the network interface radio means and the data processing means through which data flows under the control of a sequencer means, wherein the sequencer means includes means for frequency-locking the sequencer means to the rate of the network. The data transmission process of the module includes the steps of locking the sequencer means to the rate of the network and synchronizing the flow of the data through the adapter means with the network.

Method for transmitting data between data processing means and a radio communication network, module and mobile terminal for implementing same

Method for managing power supply to a cellular radiotelephone station

A mobile radio-telephone terminal includes a radio means activated by a chip card. The chip card includes a memory containing a subscriber identification word (PIN, IMSI) and is connected to an input of a comparator. The terminal comprises means for receiving the card connected to the radio means and the memory for inputting a particular identification word (PIN, PINUT), associated with the card and is connected to the other input of the comparator. The terminal comprises means for transcoding the input word (PINUT), to match it with the card, to control the activation of the radio means from the subscriber identification word.

Mobile radio-telephone terminal with controlled usage

In a mobile telephone, it is planned to divide the functions usable by this mobile telephone into basic functions and comfort functions. It is planned that access to the comfort functions should be possible only if, in a test of comparison, an operator code stored in a memory of the mobile telephone corresponds to an operator code stored in a security circuit delivered by this operator when a purchaser purchases the mobile telephone, at the same time as he takes out a subscription with this operator. It is shown that, by acting in this way, it is possible to modulate the price of the subscription which may be attractive as well as the availability of the comfort functions of the mobile telephone. This can be done in such a way that economic profitability is ensured either by encouraging the user to keep his subscription with this operator or pay a fee to the operator a fee corresponding to an additional amount that absorbs the cost of the mobile telephone.

Method for the parametrization of a mobile telephone

A radio-telephone terminal includes connection structure which connects to a radio-telephone network, a telephone handset and a data adaptation circuit arranged to be connected to a data transmission apparatus. The adaptation circuit is integrated into the terminal and can include a microprocessor arranged to manage vocal telephone communications and the data passing through the adaptation circuit.

Voice and data terminal for a radiotelephone network

Growing community of inventors

Chaumont en Vexin, France

Jean-Marc Dimech