| 6272636 |
Digital product execution control and security |
| Aug-7-2001 |
Digital product execution control as disclosed contemplates production of a final version of a digital product and subsequently imposing execution control on that digital product. The manufacturer of the... |
| 6243692 |
Secure electronic software packaging using setup-external unlocking module |
| Jun-5-2001 |
The present invention, generally speaking, provides for secure electronic software packaging using a setup-external unlocking module. As a result, a software publisher can produce a single ESD-ready version... |
| 6226618 |
Electronic content delivery system |
| May-1-2001 |
Disclosed is a method and apparatus of securely providing data to a user's system. The data is encrypted so as to only be decryptable by a data decrypting key, the data decrypting key being encrypted using... |
| 6216175 |
Method for upgrading copies of an original file with same update data after normalizing differences between copies created during respective original installations |
| Apr-10-2001 |
Rather than comparing an old file with a new file to generate a set of patching instructions, and then compressing the patching instructions to generate a compact patch file for transmission to a user,... |
| 6209099 |
Secure data processing method and system |
| Mar-27-2001 |
The present invention concerns a secure data processing method and system in which the user or operator of the system can trust that all of the software and hardware components of the system have been... |
| 6209096 |
Method and device for storing main information with associated additional information incorporated therein |
| Mar-27-2001 |
To store main information with associated additional information incorporated therein, data constituting the additional information is divided into a plurality of small-size data pieces of, e.g., one bit.... |
| 6188995 |
Method and apparatus for enforcing software licenses |
| Feb-13-2001 |
The present invention comprises a method and apparatus for enforcing software licenses for resource libraries such as an application program interface (API), a toolkit, a framework, a runtime library,... |
| 6182215 |
Information devices which select and use one out of plurality of encryption utilization protocols for protecting copyrights of digital productions |
| Jan-30-2001 |
A verifier and a claimant notify each other of verifier type information and claimant type information, respectively. The verifier determines a verifier method corresponding to a combination of the verifier... |
| 6169805 |
System and method of operation for providing user's security on-demand over insecure networks |
| Jan-2-2001 |
Secure communication may be conducted between two or more parties over a network, e.g the Internet without prior security arrangements among the parties or agreed to encryption/decryption software. A sending... |
| 6158004 |
Information storage medium and security method thereof |
| Dec-5-2000 |
A security system for an information storage medium is so structured that only file data including secret individual information is encrypted by an encryptor/decryptor circuit. Known file management data... |
| 6154840 |
System and method for transferring encrypted sections of documents across a computer network |
| Nov-28-2000 |
A system and method for transmitting encrypted documents from a document server to a client computer across network allows a user to select and view fewer than all of the sections of the document so that... |
| 6145081 |
Method and apparatus for preventing removal of embedded information in cover signals |
| Nov-7-2000 |
Apparatus and methods are provided for embedding watermark information into a cover signal, such as an audio signal, video signal, or still image signal, in a manner that prevents the watermark information... |
| 6141756 |
Apparatus and method of reading a program into a processor |
| Oct-31-2000 |
The following describes an apparatus for and method of providing a secure method of downloading a program into a processor (101) from a device (103) external to the processor (101). The program may be... |
| 6137952 |
Apparatus and method for degrading the quality of unauthorized copies of color images and video sequences |
| Oct-24-2000 |
Image-distorting artifacts are added to selected areas of a color image. A first artifact change is made to a luminance component of a selected area, and at least one other artifact change is made to chrominance... |
| 6134659 |
Controlled usage software |
| Oct-17-2000 |
The present invention provides a new and novel system and method for protecting a computer software program from unauthorized use and/or copying. In a preferred embodiment of the invention, each embodiment... |
| 6131162 |
Digital data authentication method |
| Oct-10-2000 |
This invention provides a method for identifying a purchaser who purchased content from which an illegal copy was produced. A provider system encrypts a content purchased by the purchaser using a public... |
| 6128740 |
Computer security system and method with on demand publishing of certificate revocation lists |
| Oct-3-2000 |
A computer network security system provides generation of a certificate revocation list (CRL) upon each revocation. The entire certificate revocation list may be published on demand, or only the portion... |
| 6128605 |
Apparatus for data copyright management system |
| Oct-3-2000 |
A data copyright management apparatus for handling data copyrights and data of digital cash, and for use in video conference systems is provided. The data copyright management apparatus is connected to... |
| 6119108 |
Secure electronic publishing system |
| Sep-12-2000 |
The present invention is designed to improve distribution of electronic objects by permitting publishers to enforce the copyrights associated with their objects. In accordance with the present invention,... |
| 6115699 |
System for mediating delivery of a document between two network sites |
| Sep-5-2000 |
A system for mediating delivery of a document from a sending site to a receiving site utilizes respective sending and receiving agents as intermediaries. The document is encrypted by the sending site to... |
| 6108784 |
Encryption of applications to ensure authenticity |
| Aug-22-2000 |
A software application is modified in a defined manner to prevent it being executable by a processor until the modified software application is decoded. Preferably, a sum of all of the bytes comprising... |
| 6097814 |
Method and apparatus for controlling the reproduction of data stored on a storage medium method |
| Aug-1-2000 |
Plural program information and a BCA (Burst Cutting Area) number of the optical disc (100) is previously recorded in the optical disc (100). A drive ID is stored in the nonvolatile memory (104a) of the... |
| 6083667 |
Optical recording medium |
| Jul-4-2000 |
An optical recording medium includes a transparent substrate having a surface formed with a track of pits. A reflecting layer extends on the surface of the transparent substrate. The pits include first-type... |
| 6081897 |
Apparatus for monitoring and preventing unauthorized copying of digital data |
| Jun-27-2000 |
An apparatus for monitoring and preventing unauthorized copying of digital data. A recording device records digital data on a first storage medium which has been read from a second storage medium. A computer... |
| 6081794 |
Data copyright management system |
| Jun-27-2000 |
A data copyright management system is provided, in which a primary user edits a received data and supplies the edited data to a secondary user. The copyright management system comprises a database and... |
| 6076077 |
Data management system |
| Jun-13-2000 |
A system for dealing in an original data content and an edited data content. A data content is handled as an object, and the data content is edited by editing a data content, functioning as an object,... |
| 6073123 |
Method and apparatus for detecting unauthorized copies of software |
| Jun-6-2000 |
A method and apparatus for detecting unauthorized copies of software. Each copy of software is uniquely identified by a license number. Each use of each copy is termed a session. Each copy's sessions are... |
| 6073122 |
Cryptographic method and apparatus for restricting access to transmitted programming content using extended headers |
| Jun-6-2000 |
A system for restricting access to transmitted programming content is disclosed, which transmits the encryption key used to encrypt the program to the customer with the encrypted programming content. A... |
| 6069952 |
Data copyright management system |
| May-30-2000 |
A data copyright management system comprises a database for storing original data, a key control center for managing crypt keys, copyright management center for managing data copyrights, and a communication... |
| 6067640 |
System for management of software employing memory for processing unit with regulatory information, for limiting amount of use and number of backup copies of software |
| May-23-2000 |
A set of a management-use memory medium in which is written various type of regulatory information (limit I of use of software, limit L of production of the next generation, a number K of generations showing... |
| 6067622 |
Software security system using remove function to restrict unauthorized duplicating and installation of an application program |
| May-23-2000 |
Disclosed is a software-based system and method for restricting unlicensed software duplication and installation. The invention features a software security system using a remove function for restricting... |
| 6052242 |
Recording apparatus with copy control based on copies made and allowed to be made |
| Apr-18-2000 |
A recording and reproducing apparatus comprising a reproducing member for reproducing number-of-times-of-copy information and possible-number-of-times-of-copy information recorded on a recording medium,... |
| 6049789 |
Software pay per use licensing system |
| Apr-11-2000 |
A software pay-per-use (PPU) licensing system is disclosed. The PPU licensing system includes one or more licensor license management system (LMS) and one or more licensee LMS. Each licensee LMS includes... |
| 6044469 |
Software publisher or distributor configurable software security mechanism |
| Mar-28-2000 |
The present invention, generally speaking, provides a software protection mechanism that may be conveniently configured by a software publisher and applied to a software product. Various predefined software... |
| 6038316 |
Method and system for protection of digital information |
| Mar-14-2000 |
An information processing system including an encryption processing logic module and a decryption processing logic module for enabling the encryption of digital information to be decrypted with a decryption... |
| 6034931 |
Method of recording media data on a storage medium and method and system for accessing the media data recorded on the storage medium |
| Mar-7-2000 |
Management information is embedded by directly controlling media with a date hiding technique. A system which accesses (regenerates or records) media data by using the management information is controlled... |
| 6034618 |
Device authentication system which allows the authentication function to be changed |
| Mar-7-2000 |
The decoder apparatus 90 generates a random number R1 for authenticating the optical disc drive apparatus 70 and sends it to the optical disc drive apparatus 70 as the challenge data CHA1. The optical... |
| 6028937 |
Communication device which performs two-way encryption authentication in challenge response format |
| Feb-22-2000 |
A supplier device 70 which supplies title data is equipped with a encryption module 74 for performing an encryption which is substitutive in nature and the user device 90 which uses the title data is equipped... |
| 6028932 |
Copy prevention method and apparatus for digital video system |
| Feb-22-2000 |
A copy prevention method and apparatus for a digital video system is disclosed including the steps of: (a) adding a header area of a header start code and key field to a reproduced bit stream; (b) decrypting... |
| 6018712 |
Method and apparatus for remote program execution to use in computer software protection without the use of encryption |
| Jan-25-2000 |
A storage device, either a Cartridge (40) or a credit-card-like, capable of protecting the program stored inside it by physical measures and a security-logical-lock. Physical measures are anything, from... |
| 6014443 |
Semiconductor memory device having copy protect function and method for accessing the same |
| Jan-11-2000 |
Cryptographic key data and data subjected to an operation by use of the cryptographic key data are previously stored in a memory cell array. A memory cell in which the cryptographic key data is stored... |
| 6009170 |
Method for appending a signal with ciphered playback mode information |
| Dec-28-1999 |
A signal transmission method applicable to prevention of modification or alteration of the playback mode information, such as copying management information or charging information. The playback mode information... |
| 6005940 |
System for securely storing and reading encrypted data on a data medium using a transponder |
| Dec-21-1999 |
A self contained data medium is provided with an apparatus for generating a decrypting key for decrypting stored data. Frames of encrypted data are stored on the data medium such as a video or audio disk.... |
| 6005839 |
Data transmitting method, data recording apparatus, data record medium and data reproducing apparatus |
| Dec-21-1999 |
A data transmitting method for preventing direct copying of digital bi-level signals. When processing input digital data from an input terminal 11 by circuits 13 to 16, modulating the data by a modulation... |
| 6005643 |
Data hiding and extraction methods |
| Dec-21-1999 |
A method for embedding additional information into a video movie without substantially having an influence on the compression efficiency of the video movie and also without substantially causing degradation... |
| 5987607 |
Copy preventing system for multi-media equipment |
| Nov-16-1999 |
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... |
| 5987126 |
Device having a digital interface and a network system using such a device and a copy protection method |
| Nov-16-1999 |
A copy flag detecting circuit in a device detects the copy generation management information. This copy generation management information is inserted in the CIP header of the IEEE 1394 packet for transmission.... |
| 5982977 |
Apparatus and method for synthesizing information signal and reproduction control signal and information signal recording apparatus |
| Nov-9-1999 |
A synthesis signal which was reproduced from reproducing apparatus and converted into an analog signal includes an analog information signal and a copy control code. The copy control code is modulated... |
| 5982886 |
Unauthorized use preventing method for optical disks, optical disk having unauthorized use prevention function, and optical disk apparatus |
| Nov-9-1999 |
In a method for preventing unauthorized use of a recording medium having a user accessible area and a user inaccessible area, first information is read from the user inaccessible area of the recording... |
| 5974141 |
Data management system |
| Oct-26-1999 |
The present invention provides a system to ensure security of data in a computer network system. A center certifies a public-key of user of the system and distributes a secret-key. A first system comprises... |
