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.
Patent No.:
Date of Patent:
Nov. 18, 1997
Filed:
Oct. 23, 1995
Applicant:
Inventor:
Patrice Peyret, Fuveau, FR;
Assignee:
Gemplus Card International, Gemenos, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L / ; H04N / ;
U.S. Cl.
CPC ...
380 49 ; 380-9 ; 380 10 ; 380 59 ;
Abstract
An interface is made for a device for the exploitation of electrical signals between a receiver of this device and a device for the exploitation of these signals. The interface is capable of sending, alternatively, signals received by the receiver to an external circuit and signals delivered by the external circuit to the exploitation circuit. It is shown that this approach can be used to resolve problems of the scrambling and unscrambling of audio-visual signals.