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:
May. 09, 1995
Filed:
Sep. 15, 1993
Applicant:
Inventor:
Doron Handelman, Givataim, IL;
Assignee:
News Datacom Ltd., London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M / ; H04H / ; H04H / ; H04L / ;
U.S. Cl.
CPC ...
380 49 ; 380-9 ; 380 10 ; 380 18 ; 348-6 ; 348-8 ; 348-9 ; 348 10 ; 455-51 ; 455-61 ; 455-62 ; 455-63 ; 379 93 ; 379 96 ; 379 97 ; 379100 ; 379101 ;
Abstract
A CATV system including a CATV network, a multiplicity of subscriber units, apparatus for transmitting over said CATV network encrypted information individually addressed to a subscriber unit and apparatus associated with each of said multiplicity of subscriber units for decoding the encrypted information addressed thereto.