| 6742129 |
Software security mechanism |
| May-25-2004 |
A load program causes a user's computer to generate an intermediate code as a function of a read time from the computer's system clock and an operating system ID. The software provider receives the intermediate... |
| 6742118 |
Information processing apparatus, information processing method, data recording medium, and information processing system |
| May-25-2004 |
An improvement in protecting information transmitted via a network from illegal copying is disclosed. While data input from an information provider via a network is stored in a storage device, an ID inherent... |
| 6738906 |
Marking of electronic documents in order to expose unauthorized publication |
| May-18-2004 |
A method of marking information to be produced in order to expose unauthorized copying. In the method, a user identifier is defined, a source file containing a substantial part of the information produced... |
| 6735693 |
Disk drive comprising encryption circuitry selectively enabled by verifying a circuit that provides plaintext data |
| May-11-2004 |
A disk drive comprising a disk for storing encrypted data is disclosed. The disk drive comprises a first circuit for providing plaintext data to a second circuit. The second circuit comprises controllable... |
| 6732180 |
Method to inhibit the identification and retrieval of proprietary media via automated search engines utilized in association with computer compatible communications network |
| May-4-2004 |
A method and article of manufacture to inhibit automated search engines in locating and retrieving proprietary media by employing cooperative scanning, manufacturing, sharing and supervisory control software... |
| 6731774 |
Associated information adding apparatus and method, and associated information detecting apparatus and method |
| May-4-2004 |
The present invention relates to an information adding apparatus and method for adding information as a watermark to an image. Particularly, the invention is characterized in that a unit watermark pattern... |
| 6728379 |
Information processor and information processing method |
| Apr-27-2004 |
An information processor receives at a communication section thereof an encrypted content decryption key generated by encrypting, by a distribution encryption key, a content decryption key for decryption... |
| 6725205 |
System and method for secure software installation |
| Apr-20-2004 |
A method secures software in a computer system that has one or more fixed disk drives. Each fixed disk drive is configured with a predetermined system serial number, such that each fixed disk drive has... |
| 6715079 |
Method and system for soft modem protection |
| Mar-30-2004 |
The present invention is a system and method for soft modem software protection using a key. The key is stored in a hardware device in the modem subsystem and transmitted to the central processing unit... |
| 6715074 |
Virus resistant and hardware independent method of flashing system bios |
| Mar-30-2004 |
A system and method for making sure that before the ROM BIOS of a personal computer is reprogrammed, the BIOS image is compatible with the computer whose BIOS are being reprogrammed. This is done by requiring... |
| 6711553 |
Method and apparatus for digital content copy protection |
| Mar-23-2004 |
A method, apparatus and a computer program product are described for copy protecting encrypted documents in a client-server system using an unsecured communication channel. The client-server system has... |
| 6707564 |
Image forming apparatus |
| Mar-16-2004 |
An object of the invention is to allow secure identification of an image forming apparatus from an image on a recording medium on which the black image has been formed, thereby preventing leakage of secret... |
| 6704777 |
Recording and reproducing apparatus and terminal apparatus |
| Mar-9-2004 |
A recording and reproducing apparatus has a communicating unit, a reading unit, a storing unit, a control unit, and an output unit. The communicating unit transmits and receives data to/from an information... |
| 6701436 |
Information reproducing and recording apparatus and method which permits copying for personal use while protecting a copyright |
| Mar-2-2004 |
The following operations are performed according to instructions from a CPU. The ID information of music information having a copyright that is recorded on a reproduction-side recording medium is detected... |
| 6697944 |
Digital content distribution, transmission and protection system and method, and portable device for use therewith |
| Feb-24-2004 |
A digital content file distribution, transmission, and protection system comprises a digital content provider having stored therein a digital content file such as an audio file, video file, literature,... |
| 6681213 |
System and method for preventing unauthorized data copying using communication network |
| Jan-20-2004 |
An authorized node has a normal data input/output mode for directly inputting and outputting digital data without performing thereon specific data processing such as an encrypting process, and a protected... |
| 6678665 |
Computer system for protecting software and a method for protecting software |
| Jan-13-2004 |
A method for protecting an item of software, wherein at least one challenge means is associated with said protected item of software, and at least one response means accesses one private keying material.... |
| 6674858 |
Receiving device, recording and reproducing device and receiving/recording-reproducing system for digital broadcast signal |
| Jan-6-2004 |
A receiving device comprises a signal demodulator circuit for demodulating an encrypted video signal and attribute information including information for decoding an encryption, an attribute information... |
| 6671808 |
USB-compliant personal key |
| Dec-30-2003 |
A method, apparatus, article of manufacture, and a memory structure for a USB-compliant personal key has been described. The personal key includes an integrated connector design that is simple and easy... |
| 6668246 |
Multimedia data delivery and playback system with multi-level content and privacy protection |
| Dec-23-2003 |
A content distribution system comprising a server platform and a client platform. The server platform includes a memory unit to store digital content and access control logic to activate content protection... |
| 6647495 |
Information processing apparatus and method and recording medium |
| Nov-11-2003 |
In an information processing apparatus and method, an application program that was encrypted using secret key-A is supplied to a decoding section 82, and publicized key-B and an encrypted publicized key-A... |
| 6636867 |
Method of enabling and administering commercial transactions using a computerized administration system |
| Oct-21-2003 |
The present invention relates to a method of enabling and administering commercial transactions using a computerised administration system. The method comprises (with reference to FIG. 1)storing in a first... |
| 6633853 |
Recordable optical disk encrypted with disk identification and multiple keys |
| Oct-14-2003 |
An optical disk recordable by a recording device and having first and second recording areas, the second recording area having recorded therein disk identification information unique to the disk, and multiple... |
| 6633534 |
Optical disk and optical disk drive |
| Oct-14-2003 |
A write-once DVD 1 has a lead-in area 4 provided inside a data area 5 where digital information on a document, image sound or the like is recorded, which includes prepits 9 holding copy managing key information... |
| 6631359 |
Writeable medium access control using a medium writeable area |
| Oct-7-2003 |
An optical medium uses a single structure or format (such as identical materials, layers and the like) for both a region for holding information content-mastered data and a writeable area. In one aspect,... |
| 6618335 |
Method and apparatus for recording and reproducing information on and from recording disc |
| Sep-9-2003 |
A recording disc has a lead-in area and a data area. A scrambled version of a SID code word is read out from the lead-in area of the disc. The SID code word represents a producer of the disc. The readout... |
| 6615350 |
Module authentication and binding library extensions |
| Sep-2-2003 |
An apparatus, system, and method to provide an initial and an on-going authentication mechanism with which two executable entities may unilaterally or bilaterally authenticate the identity, origin, and... |
| 6615192 |
Contents copying system, copying method, computer-readable recording medium and disc drive copying contents but not a cipher key via a host computer |
| Sep-2-2003 |
A content copying system is formed from a host computer and connected disc drive, a removable recording medium being loaded into the latter. When the removable recording medium loaded into the disc drive... |
| 6611813 |
Digital audio and video playback with performance complement testing |
| Aug-26-2003 |
System and method for monitoring and modifying a playlist of viewable audio and/or video selections at one or more selected times to account for the effects of restrictions on the times, and number of... |
| 6609203 |
Secure optically readable memory usable in connection with a limited number of machines |
| Aug-19-2003 |
Digital information stored on a CD-ROM is accessible by use of a password, which is readable initially on the CD-ROM and which subsequently becomes at least partially unreadable due to exposure of the... |
| 6609116 |
System and method for securely updating copy-protected media |
| Aug-19-2003 |
A system and method for updating old blank media onto which newer content is sought to be copied, to reduce the risk of unauthorized copying of new content onto old unupdated media. A computer system executes... |
| 6603568 |
System and method for issuing electronic tickets |
| Aug-5-2003 |
This invention adds a graphic field to an electronic ticket. The graphic field is designed to produce a "tell" a visible known image (a large number of detectable halftone gray steps) when printed by a... |
| 6601046 |
Usage dependent ticket to protect copy-protected material |
| Jul-29-2003 |
A usage-limit is associated with each copy of copy-protected material. A conforming playback device determines how much usage has been made of the copy, and only plays the copy-protected material if the... |
| 6594646 |
Method and apparatus for selling digital contents, processing program thereof and recording medium for the program |
| Jul-15-2003 |
The present invention relates to a digital contents selling system for selling digital contents. Identification information of digital contents selected by a customer is received. Personal digital contents... |
| 6591420 |
Remote control system for audio and video content |
| Jul-8-2003 |
A program distribution system is disclosed for the simultaneous release of a program at a plurality of locations. The locations may include local broadcasters, or even individual devices. A program is... |
| 6590996 |
Color adaptive watermarking |
| Jul-8-2003 |
A color mapping process enhances a watermark by computing a change in colors that is less visible for a given watermark strength. The mapping process provides smooth transitions from one color region to... |
| 6587948 |
Recording apparatus, recording medium, playback apparatus, recording method and playback method |
| Jul-1-2003 |
A recording method and a recording apparatus whereby digital data is recorded onto a disc as run-length limited code used for modulating marks or spaces on the disc and, at the same time, the recorded... |
| 6587842 |
Software-based protection system for software products distributed on copyable media, or downloaded over a communications link |
| Jul-1-2003 |
Computer software can be secured so that it only operates on a customer system that has a protection file that is unique to the system. The software is inoperable when copied to other systems, even though... |
| 6587561 |
Key delivery in a secure broadcasting system |
| Jul-1-2003 |
A key delivery method for use in an encoded communications system in which at least one encoded item including a first item encoded with a first item control word is sent in a communication stream from... |
| 6577746 |
Watermark-based object linking and embedding |
| Jun-10-2003 |
OLE-like principles are implemented using watermark data in digital objects in order to effect object linking or embedding. In one embodiment, a photocopier scans an original paper document to produce... |
| 6574611 |
Information processing apparatus and method, information management apparatus and method, and information providing medium |
| Jun-3-2003 |
An information processing apparatus managed by a management apparatus to decrypt encrypted information and use resultant decrypted information. An efficient scheme is implemented for registering users... |
| 6571339 |
Use of a processor identification for authentication |
| May-27-2003 |
A system comprises a first computer which has a unique processor identification. Additionally, a first application is operatively coupled to the first computer across a network. The first computer provides... |
| 6567916 |
Method and device for authentication |
| May-20-2003 |
The present invention allows even small-size verification devices to authenticate rights and qualifications without leaking authentication characteristic information to third parties. A ticket issuance... |
| 6565443 |
System and method for verifying the contents of a mass storage device before granting access to computer readable data stored on the device |
| May-20-2003 |
A system and method for verifying the contents of a mass storage device attached to a computing system having a processor and system random access memory. The computing system is preferably used as part... |
| 6564253 |
Content authorization system over networks including searching and reporting for unauthorized content locations |
| May-13-2003 |
An Internet or other content authorization system consists of an Internet authorization notice in the form of a flag. This flag can be embedded in each original recording at the time of manufacture, such... |
| 6556679 |
Copy-guard system and information recording medium used in the same system |
| Apr-29-2003 |
In an embodiment, a copy-guard system is provided that includes a decoding section for decoding digital data, which is encoded and error-correction-coded, from an information recording medium in which... |
| 6546490 |
Signal transmision method |
| Apr-8-2003 |
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... |
| 6542444 |
Carrier card capable of storing information data in CD or DVD formats |
| Apr-1-2003 |
A data carrier and a method of making the data carrier. The data carrier includes a plastic body, at least one metal layer arranged in or on the plastic body for carrying information encoded in one of... |
| 6539475 |
Method and system for protecting digital data from unauthorized copying |
| Mar-25-2003 |
Data is protected from unauthorized copying by rescrambling an unauthorized version of the data, but descrambling an authorized version of the data. This is done using a trigger signal. One property of... |
| 6535919 |
Verification of image data |
| Mar-18-2003 |
Image data, such as image data coded in MPEG4 format, is verified by a client receiving an information data stream that is generated by multiplexing a plurality of coded object data and associated intellectual... |
