Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Protection at a particular protocol layer
Patent
1997-04-02
1999-11-16
Le, Dieu-Minh T.
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Protection at a particular protocol layer
714 38, 380 3, G06F 1214
Patent
active
059876077
ABSTRACT:
The present invention aims to provide a system, which can prevent unauthorized copying of information in a society covered by a network and can exclude distribution and diffusion of information in the network or package media. In a system comprising a receiving unit connected to broadcasting and/or communication network, there are provided a transmitting unit, a writing unit to a package medium, a reading unit, a reproducing unit for displaying and reproducing the information, and a management unit including a filing unit, each of these units has an ID to define a space to which that unit belongs, and by comparing it with a space ID, which defines a space where the information can be utilized and is added to the information transferred within the system, the compatibility of the utilization, i.e. whether the information is being utilized in an authorized space or not, is checked and unauthorized utilization of information or unauthorized copying are prevented.
REFERENCES:
patent: 4688169 (1987-08-01), Joshi
patent: 4796220 (1989-01-01), Wolfe
patent: 4924328 (1990-05-01), Endoh et al.
patent: 5182770 (1993-01-01), Medveczky et al.
patent: 5231546 (1993-07-01), Shimoda
patent: 5668873 (1997-09-01), Yamauchi
patent: 5675323 (1997-10-01), Ho
patent: 5689559 (1997-11-01), Park
patent: 5778064 (1998-07-01), Kori et al.
patent: 5781627 (1998-07-01), Ikuta et al.
Le Dieu-Minh T.
Matsushita Electric - Industrial Co., Ltd.
LandOfFree
Copy preventing system for multi-media equipment does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Copy preventing system for multi-media equipment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Copy preventing system for multi-media equipment will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1338656