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:
Oct. 08, 2002
Filed:
Feb. 25, 1999
Applicant:
Inventor:
Masayuki Takahashi, Ehime, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 7/167 ; H04K 1/00 ;
U.S. Cl.
CPC ...
H04N 7/167 ; H04K 1/00 ;
Abstract
A digital broadcast receiving and playing apparatus for receiving digital program data of pay broadcast, generating an apparatus individual key and a program key different in every program or every program division of a divided program in the receiving and playing apparatus, recording after scrambling the program data and program key by the apparatus individual key, controlling the number of times of display of program data received or played from memory device, thereby capable of prohibiting reproduction or display of program data more than the permitted number of times.