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:
Dec. 25, 2001
Filed:
Nov. 24, 1998
Applicant:
Inventor:
Fumiaki Uematsu, Kasugai, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/24 ;
U.S. Cl.
CPC ...
G06F 1/24 ;
Abstract
A digital video disk controller for reading data from an optical disk and stores the data in a memory. The data is then read from the memory and encrypted by an arithmetic processor. The encrypted data is then transmitted directly to an external device, via an interface circuit, without first storing the encrypted data back into the memory. The number of memory accesses performed by the controller is thus reduced, providing for lower power dissipation and faster access to the read data.