| 6535858 |
Optical disc copy management system |
| Mar-18-2003 |
The invention relates to a method of obtaining a copy protected optical record carrier carrying information in different blocks, a method of accessing such a copy protected optical record carrier and such... |
| 6532451 |
Nested strong loader apparatus and method |
| Mar-11-2003 |
An apparatus and method provides one or more controlled, dynamically loaded, modular, cryptographic fillers. Fillers may be loaded by a single loader, multiple independent loaders, or nested loaders. Loaders... |
| 6526146 |
Information recording system |
| Feb-25-2003 |
An optical disc recorder/reproducer, a personal computer, a television receiver, an IRD and so forth are connected mutually via a 1394 serial bus. When data transmitted from the personal computer to the... |
| 6526144 |
Data protection system |
| Feb-25-2003 |
A method of communicating from a transmitter to a receiver over a communication medium. For the transmitter, the method includes the step of formatting data into a data stream to be communicated across... |
| 6519700 |
Self-protecting documents |
| Feb-11-2003 |
A system and method for the secure distribution of electronic documents reduces the likelihood of unauthorized reproduction and redistribution by either authorized or unauthorized recipients. A self-protecting... |
| 6490355 |
Method and apparatus for use of a time-dependent watermark for the purpose of copy protection |
| Dec-3-2002 |
A copy protection system for protecting content wherein a ticket and a watermark are created, utilizing a first time reference (TD) and a one-way function, to indicate the copy protection status of the... |
| 6480607 |
Encrypted data reproducing transmitting and processing method and apparatus with separately encrypted control data |
| Nov-12-2002 |
A data reproducing apparatus high in security against unauthorized duplication. A drive 20 includes a first CSS encoder 21 for performing first encryption processing on picture data etc reproduced from... |
| 6473860 |
Information distribution and processing system |
| Oct-29-2002 |
Digital information is separated into two portions. The first portion is a clear portion and the second portion is encrypted. The clear portion and an identification label are distributed to a plurality... |
| 6466920 |
Method and system for preventing illegal use of digital contents, processing program thereof, and recording medium for the program |
| Oct-15-2002 |
In a method of preventing an illegal use of digital contents, a status information for controlling the replay processing of the digital contents is set in the digital contents. The replay processing of... |
| 6463539 |
Managing system for reproducing information composed of information recording medium, managing medium, and reproduction method and apparatus method therefor |
| Oct-8-2002 |
A user 11 loads a disc 13a and an IC card 16 into a reproduction apparatus 26. A reproduction managing information 14 and a reproduction permitting information 18 are read out from the disc 13a and the... |
| 6463153 |
Method for transmitting data apparatus for recording data medium for recording data and apparatus for reproducing data |
| Oct-8-2002 |
A data transmitting method, a data recording apparatus, a data record medium and a data reproducing apparatus are provided to disallow the encryption to be easily decoded and keep the secrecy of key information... |
| 6463152 |
Digital broadcast receiving and reproducing apparatus |
| Oct-8-2002 |
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... |
| 6463151 |
Data transmission method, data receiving method, data transmission system and program recording medium |
| Oct-8-2002 |
The data transmission system can substantially prohibit illegal copy of real data since the encryption key applied to transmitted data is changed depending on copy management information, thereby the real... |
| 6460023 |
Software authorization system and method |
| Oct-1-2002 |
A system add method for controlling the execution or display to one or more pieces of software developed using the developer's software is provided. The system permits the developer to receive revenue... |
| 6457127 |
Method of and device for generating a key |
| Sep-24-2002 |
A key is generated to control the access to information on an information carrier. The key is derived from an M-bit master key and an information carrier key. Apparatus to read and/or write information... |
| 6453420 |
System, method and article of manufacture for authorizing the use of electronic content utilizing a laser-centric medium |
| Sep-17-2002 |
A system, method, and article of manufacture is provided for tracking the distribution of content electronically. First, an electronic storage medium tracking identifier is incorporated onto an electronic... |
| 6453305 |
Method and system for enforcing licenses on an open network |
| Sep-17-2002 |
An electronic commerce system and method enforces a license agreement for content on an open network by restricting the number of consumers that can concurrently access the content. A consumer initially... |
| 6453304 |
Digital information recording apparatus for recording digital information |
| Sep-17-2002 |
A digital information recording apparatus to record digital information to protect copyright of digital information that includes at least first digital information and first copy control information.... |
| 6449684 |
Data carrying device and systems for use therewith |
| Sep-10-2002 |
A data carrying device having a memory space (1) for storing data at a plurality of locations. The memory space includes a static area (2) residing at a fixed location; an index area residing at a first... |
| 6445795 |
Data recording method and apparatus, data record medium and data reproducing method and apparatus |
| Sep-3-2002 |
An input is ciphered in at least one of a sector forming circuit 13, a scrambling circuit 14, a header appendage circuit 15, an error correction encoding circuit 16, a modulation circuit 18 and a synchronization... |
| 6434538 |
Data control method, for embedding data control information, method for detecting data control information, device for embedding data control information and device for recording data |
| Aug-13-2002 |
A data control method includes the steps of: A) at least one of the following steps: A-1) embedding prohibition information in data, wherein copying of the data is to be prohibited; and A-2) embedding... |
| 6425098 |
Prevention of disk piracy |
| Jul-23-2002 |
A method for protecting data recorded on an original data storage medium against unauthorized copying includes receiving data encoded in accordance with an applicable recording standard, and altering a... |
| 6424715 |
Digital content management system and apparatus |
| Jul-23-2002 |
There are provided a digital content management apparatus which further embodies a digital content management apparatus used with a user terminal, and a system which protects the secrets of a digital content.... |
| 6418232 |
Method of authenticating digital-watermark pictures |
| Jul-9-2002 |
An extraction process includes the steps of carrying out a geometric transformation on a picture being inspected to transform the size of the picture being inspected into a reduced scale of an original... |
| 6411941 |
Method of restricting software operation within a license limitation |
| Jun-25-2002 |
A method of restricting software operation within a license limitation that is applicable for a computer having a first non-volatile memory area, a second non-volatile memory area, and a volatile memory... |
| 6408285 |
Optical disk reading device using both a decipher key and disk identification information for decryption |
| Jun-18-2002 |
A device for reading encrypted information from an optical disk having first and second recording areas, which device can read encrypted information recorded by a first modulation method in the first recording... |
| 6404926 |
Apparatus and method of processing image data, transmission medium, and recording medium |
| Jun-11-2002 |
The present invention relates to an apparatus and a method of processing an image data, a transmission medium, as well as a recording medium. In detail, in an image data processing of processing an image... |
| 6397333 |
Copy protection system and method |
| May-28-2002 |
The copy protection system is a combination of a signature method and a coding or encryption method that uses a variable key. The data set is written only onto a predetermined device and it is released... |
| 6389541 |
Regulating access to digital content |
| May-14-2002 |
Digital content such as text, video, and music are stored as part of a compressed and encrypted data file, or object, at a client computer, such as a personal home computer. The content is inaccessible... |
| 6389538 |
System for tracking end-user electronic content usage |
| May-14-2002 |
A system for tracking usage of digital content on user devices. Electronic stores coupled to a network sell licenses to play digital content data to users. Content players, which receive from the network... |
| 6389403 |
Method and apparatus for uniquely identifying a customer purchase in an electronic distribution system |
| May-14-2002 |
A system for tracking usage of digital content on user devices. Content sites for distributing digital content over a computer readable medium to users. The content sites associate unique content identifier... |
| 6385596 |
Secure online music distribution system |
| May-7-2002 |
A computer implemented online music distribution system provides for the secure delivery of audio data and related media, including text and images, over a public communications network. The online music... |
| 6363486 |
Method of controlling usage of software components |
| Mar-26-2002 |
Controlling the usage of a software component by an application program in an end user computer system includes obtaining an identifier of the application program by a controller computer system and generating... |
| 6363483 |
Methods and systems for performing article authentication |
| Mar-26-2002 |
Disclosed are methods and systems for authenticating a unique article utilizing a generated unique data signature. The unique data signature is generated by encrypting a received data set representative... |
| 6360325 |
Method for retarding the duplication of a data-storage device |
| Mar-19-2002 |
A method for retarding the duplication of data-storage device, by which the main program of the software in the data-storage device is hard to duplicate. The inventive method uses a processing program... |
| 6353890 |
Method for copy protecting a record carrier, copy protected record carrier and means for detecting access control information |
| Mar-5-2002 |
A method for copy protecting a record carrier using a pattern of logical errors which cannot be corrected by the error correcting rules predefined for the record carrier. The pattern of logical errors... |
| 6347846 |
Method and an apparatus to control copying from a data providing device to a data receiving device |
| Feb-19-2002 |
An MPEG board 6 issues the key data generated by the board to a DVD drive 4. The DVD drive 4 generates enciphering key data on the basis of the key data, enciphers the provided data read from a DVD 2 on... |
| 6343283 |
Data copyright management system |
| Jan-29-2002 |
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... |
| 6343282 |
Optical disk reading device using both a decipher key and disk identification information |
| Jan-29-2002 |
A device for reading encrypted information recorded on an optical disk having first and second recording areas, the device can read disk identification information recorded in the second recording area,... |
| 6343281 |
Device and method for preventing fraudulent copies of data containing encrypted copy-management information and recording medium |
| Jan-29-2002 |
A device to be used with digital data copying apparatus for preventing fraudulent copies of a digital data is disclosed. The digital data includes an encrypted data main body and encrypted copy management... |
| 6338049 |
User-generated traveler's checks |
| Jan-8-2002 |
A system and method for issuing travelers checks at a user's home or business using the purchaser's own computer system to allow the user to obtain travelers checks at any time, in any denominations and... |
| 6337911 |
Deferred billing, broadcast, electronic document distribution system and method |
| Jan-8-2002 |
An electronic document delivery system and method in which a broadcast center periodically sends a "catalog" of available documents to a receiving computer, thereby allowing a user to browse through the... |
| 6324518 |
Electronic information utilization promotion system |
| Nov-27-2001 |
Use right processing for mere viewing and listening of information and utilization right processing for utilization in users' own works can be separately performed, thereby reducing useless right processing... |
| 6317755 |
Method and apparatus for data backup and restoration in a portable data device |
| Nov-13-2001 |
A portable data device (300) having a memory (302) is provided. The memory (302) is segmented into a plurality of sectors (304-312). A backup memory buffer (312) and a plurality of applications (304-310)... |
| 6314409 |
System for controlling access and distribution of digital property |
| Nov-6-2001 |
A method and device are provided for controlling access to data. Portions of the data are protected and rules concerning access rights to the data are determined. Access to the protected portions of the... |
| 6310956 |
Copy protection apparatus and method |
| Oct-30-2001 |
An apparatus and method of copy protection for use in digital data recorders such as DVD-RAM recorders, which includes embedding transmission time information into a digital data stream by digital watermarking... |
| 6301569 |
Optical disk, optical recorder, optical reproducer, cryptocommunication system and program license system |
| Oct-9-2001 |
A device for recording information on an optical disk having first and second recording areas, which device can record information using a first modulation method into a first recording area, read disk... |
| 6282611 |
Digital information system, digital audio signal processor and signal converter |
| Aug-28-2001 |
In a digital information system for realizing the sale of information or the like having a commercial value in the form of a digital signal, and an audio processor, and signal processor suitably used with... |
| 6278984 |
Software processing apparatus writing software to a medium only if identification information in the software corresponds to identification information in the medium |
| Aug-21-2001 |
A vendor ID is written to a system area of a write-once optical disk. When the write-once optical disk is loaded onto a write-once disk drive, a control CPU reads the vendor ID. The vendor ID is written... |
| 6278836 |
Information reproducing apparatus for reproducing video signals and program information which are recorded in information recording media |
| Aug-21-2001 |
Disclosed is an information reproducing apparatus for reading out main information to be a target of reproduction and auxiliary information to control reproduction of the main information from an information... |
