The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 09, 2004

Filed:

Nov. 12, 1999
Applicant:
Inventors:

Juha Nurmi, Salo, FI;

Kimmo Siitari, Salo, FI;

Pertti Saarinen, Salo, FI;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/32 ;
U.S. Cl.
CPC ...
H04L 9/32 ;
Abstract

Use of an especially small-sized and valuable display device (b 31) is limited to persons knowing a password, not by any requirement that a password ( ) always be entered when the display device ( ) is switched on, but rather detecting, the detachment of the display device ( ) from the equipment ( ) controlling it and measuring its time of being detached, for limiting the use of the display device ( ) on the basis of a certain predetermined and adjustable time limit which, when exceeded, requires the password be entered.


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