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Conditional access method and device

  • US 6,070,796 A
  • Filed: 02/20/1998
  • Issued: 06/06/2000
  • Est. Priority Date: 08/21/1995
  • Status: Expired due to Fees
First Claim
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1. A conditional access device, intended to be used in liaison with host electronic equipment, made up of a peripheral pointing device incorporating at least one coupler for a microcircuit card characterized in that there are personal information acquisition means particular to each user, in that personal information is locally compared with information stored in the microcircuit card without this personal information being transmitted to the host electronic equipment, and in that the personal information acquisition means are constituted by a device for showing a display on a virtual screen of the host electronic equipment and also by a virtual keyboard having graphical representations with a layout that varies in a random way with each activation, so that personal information acquisition is carried out by graphical representation pointing with validation when a position of the peripheral pointing device is on the graphical representation and processing of pointing information with validation on the virtual screen is implemented exclusively in the conditional access device.

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