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:
Jul. 14, 1987
Filed:
May. 30, 1985
Applicant:
Inventors:
Hideaki Kato, Tokyo, JP;
Shigeru Araki, Tokyo, JP;
Assignee:
NEC Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
380-8 ; 380 20 ; 380 21 ;
Abstract
A processing apparatus for producing a recording signal from a video signal is disclosed. The video signal is coded to include a plurality of sub-blocks, each of the sub-blocks including a synchronizing code representing a period of the sub-block. Address information varying in content at every sub-block is added to synchronizing code. A pseudo-random signal having a different code pattern with respect to each of the sub-blocks is generated. The video signal is scrambled responsive to the pseudo-random signal.