| 6178506 |
Wireless subscription portability |
| Jan-23-2001 |
A short Personal Identification Number (PIN) is used to transfer a subscription for wireless service to a new wireless terminal 104, thereby providing enhanced personal mobility to the subscriber. The... |
| 4024574 |
Validation method and apparatus for pay television systems |
| May-17-1977 |
A predetermined pattern of code signals is periodically inserted into the transmitted encoded television signal. The pattern is so chosen that a bistable circuit at the receiver changes state for each... |
| 4250524 |
Validation apparatus in a pay television system |
| Feb-10-1981 |
A validation apparatus in a pay television system, including a code detector means for successively detecting a sequence of code signals, from an encoded composite TV signal, a key code circuit means having... |
| 6272152 |
Use of two-way cable transmissions to augment the security of the secure electronic transaction protocol |
| Aug-7-2001 |
A method and a system for authenticating an electronic financial transaction conducted between a user owning a terminal and a third party via two-way transmissions between the terminal and a cable distribution... |
| 6487660 |
Two way authentication protocol |
| Nov-26-2002 |
A method of authenticating a pair of correspondents C,S to permit the exchange of information therebetween, each of the correspondents having a respective private key, e, d and a public key, Q.sub.u, and... |
| 6581042 |
Tokenless biometric electronic check transactions |
| Jun-17-2003 |
A tokenless authorization of an electronic check between a payor and a payee using an electronic identicator and at least one payor bid biometric sample is described. The method comprises a payor registration... |
| 6230148 |
Tokenless biometric electric check transaction |
| May-8-2001 |
A tokenless authorization of an electronic check between a payor and a payee using an electronic third party identicator and at least one payor bid biometric sample is described. The method comprises a... |
| 6934693 |
System for controlling the distribution and use of digital works |
| Aug-23-2005 |
A system for controlling the distribution and use of digital works using digital tickets. In the present invention, a "digital ticket" is used to entitle the ticket holder to exercise some usage right... |
| 6981144 |
System console device authentication in a network environment |
| Dec-27-2005 |
A method for providing secure access to console functions of a computer system and authentication of a console device is disclosed. The method comprises first initiating a first EKE sequence to generate... |
| 6993132 |
System and method for reducing fraud in a digital cable network |
| Jan-31-2006 |
A digital cable network architecture includes hosts that include a receiver with a hash function generator that calculates hash values based on a hash function and data from memory blocks in the receiver.... |
| 6282293 |
System and method for charging fee for video information |
| Aug-28-2001 |
In a fee charging system for video information, scramble signals including video information and charging information can be recorded on a recording media such that the signals are read later therefrom.... |
| 6944734 |
Storage apparatus and access control method |
| Sep-13-2005 |
A storage apparatus is capable of using a storage medium having at least a first region for storing therein data and a second region for storing therein both use permission discrimination information indicative... |
| 6618484 |
Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels |
| Sep-9-2003 |
Electronic steganographic techniques can be used to encode a rights management control signal onto an information signal carried over an insecure communications channel. Steganographic techniques ensure... |
| 6449367 |
Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels |
| Sep-10-2002 |
Electronic steganographic techniques can be used to encode a rights management control signal onto an information signal carried over an insecure communications channel. Steganographic techniques ensure... |
| 6240185 |
Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels |
| May-29-2001 |
Electronic steganographic techniques can be used to encode a rights management control signal onto an information signal carried over an insecure communications channel. Steganographic techniques ensure... |
| 6526508 |
Source authentication of download information in a conditional access system |
| Feb-25-2003 |
A cable television system provides conditional access to services. The cable television system includes a headend from which service "instances", or programs, are broadcast and a plurality of set top units... |
| 6246767 |
Source authentication of download information in a conditional access system |
| Jun-12-2001 |
A cable television system provides conditional access to services. The cable television system includes a headend from which service "instances", or programs, are broadcast and a plurality of set top units... |
| 6072874 |
Signing method and apparatus using the same |
| Jun-6-2000 |
The present invention provides a signing apparatus used for signing by a user on usage information of a source provided in a format made available by the use of key information. The apparatus includes... |
| 6993153 |
Self-orienting watermarks |
| Jan-31-2006 |
A watermarking method converts a watermark message into a Frequency Shift Keying (FSK) signal and embeds the FSK signal in a host signal. The spectral properties of the FSK watermark signal facilitate... |
| 4712238 |
Selective-subscription descrambling |
| Dec-8-1987 |
A system in a subscriber television network for enabling descrambling of a received scrambled signal on a prepaid basis and/or an impulse-purchase basis. A received mask signal uniquely related to the... |
| 4792973 |
Selective enablement of descramblers |
| Dec-20-1988 |
A system in a subscriber television network for enabling descrambling of a received scrambled signal on a prepaid basis and/or an impulse-purchase basis. A received mask signal uniquely related to the... |
| 6951029 |
Security device managed access to information |
| Sep-27-2005 |
In an information delivery system, a security device (SD) manages an access to information (INF). The security device (SD) is capable of providing a pointer (PO) which indicates a location (LO) from which... |
| 6874088 |
Secure remote servicing of a computer system over a computer network |
| Mar-29-2005 |
The remote servicing of a secure computer system employs an intermediate network entity accessible to both a remote service provider and to an agent running on the secure computer system to be serviced.... |
| 6298441 |
Secure document access system |
| Oct-2-2001 |
A method for downloading a document via a communications medium operatively associated with a communications interface, the method including receiving the document from the communications medium, placing... |
| 6738904 |
Recordable storage medium with protected data area |
| May-18-2004 |
The invention relates to a method of storing data on a rewritable data storage medium, to a corresponding storage medium, to a corresponding recording apparatus and to a corresponding playback apparatus.... |
| 5144662 |
Public communication system comprising distributed stations, and station and sub-station for use in such a communication system |
| Sep-1-1992 |
A public communication system for encrypted audio/video information has various selective entitlement organizations with respect to its distributed receiver station. Such receiver station comprises one... |
| 4980912 |
Public communication system comprising distributed stations, and station and sub-station for use in such a communication system |
| Dec-25-1990 |
A public communication system for encrypted audio/video information has various selective entitlement organizations with respect to its distributed receiver station. Such receiver station comprises one... |
| 5504933 |
Pay broadcasting system |
| Apr-2-1996 |
A system for the so-called "pay-per-program" is provided for viewing individual program on pay basis without signing a comprehensive contract. In response to a request for viewing a pay program executed... |
| 6338138 |
Network-based authentication of computer user |
| Jan-8-2002 |
A network-based authentication scheme is provided that performs authentication in a centralized manner for the stand-alone computers of a particular organization. Since authentication is centralized, the... |
| 6587872 |
Network system and network management method |
| Jul-1-2003 |
This invention aims at providing a network system having high flexibility and easy changeability. When software programs .alpha., .beta., and .gamma. are run in terminal computers 14.sub.1 to 14.sub.6,... |
| 6332031 |
Multiple watermarking techniques for documents and other data |
| Dec-18-2001 |
Multiple digital watermarks, each of which has different characteristics, are embedded in a document. The characteristics of the various watermarks are chosen so that each of the watermarks will be affected... |
| 4893248 |
Monitoring and reporting system for remote terminals |
| Jan-9-1990 |
A system is disclosed for monitoring and accumulating data indicative of viewer authorized pay per view TV programs at each of a plurality of remote terminals, wherein each remote terminal is coupled illustratively... |
| 6510517 |
Method of cryptological authentification in a scanning identification system |
| Jan-21-2003 |
The method of cryptological authentification in a scanning identification system comprising a base station, which supplies energy via the alternating field to a transponder connected to the object to be... |
| 7031472 |
Method of authenticating information, disk playback apparatus, and entertainment apparatus |
| Apr-18-2006 |
A playback instructing unit in a disk playback controller has a function to instruct a CPU to play back an optical disk at different access positions in an absolute authentication process and an arbitrary... |
| 6144745 |
Method of and apparatus for retaining and verifying of data on recording medium |
| Nov-7-2000 |
For warranting a validity of data recorded on a medium such as a rewritable magneto-optic disk etc, when registering a plurality of documents (n, n+1 . . . ) on the same recording medium, an n-th authenticator... |
| 7043453 |
Method and system for conducting transactions between repositories using a repository transaction protocol |
| May-9-2006 |
A method and apparatus for establishing a secure communications channel between a first repository and a second repository using a repository transaction protocol. A registration identifier and registration... |
| 6961429 |
Method and device for guaranteeing the integrity and authenticity of a set of data |
| Nov-1-2005 |
Method and a device for guaranteeing the integrity and authenticity of data transmitted between a management center and one or several receiver units, wherein each receiver unit comprises a decoder (IRD)... |
| 6904522 |
Method and apparatus for secure communication of information between a plurality of digital audiovisual devices |
| Jun-7-2005 |
The present invention relates to a method of providing secure communication of information between at least a first and second digital audiovisual device (30, 52) and characterized in that the first device... |
| 5594794 |
Method and apparatus for free previews of communication network services |
| Jan-14-1997 |
Limited duration previews of program offerings available for purchase via a communication network are provided in a cryptographically secure manner at virtually any time during the service. The invention... |
| 6128391 |
Method and apparatus for asymetric key management in a cryptographic system |
| Oct-3-2000 |
A method and apparatus for asymmetrical key management in a cryptographic system is provided. Embodiments of the invention implement varying levels of diversification to manage the encryption keys. In... |
| 6161179 |
Key-based protection method for light-readable discs |
| Dec-12-2000 |
To protect access to information recorded on a light-readable disc, a light-readable disc player provides the user with a unique key each time the user attempts to play the disc. After the user communicates... |
| 6810525 |
Impulse pay per use method and system for data and multimedia services |
| Oct-26-2004 |
A method and system are provided for impulse purchasing of services over a communication network, such as a cable or satellite television network. Such services can include games or information accompanying... |
| 5003591 |
Functionally modifiable cable television converter system |
| Mar-26-1991 |
A cable television converter with remotely modifiable functionality receives firmware downloaded over a cable television network. The integrity of the firmware is verified, and if valid, the firmware is... |
| 6940977 |
Digital video and audio data encryption, decryption and system authentication |
| Sep-6-2005 |
Device ID detecting means detects an ID of a device on another party. Next, it is checked whether the device ID is included in historical information stored in authentication histories storing means. If... |
| 4796297 |
Device for calculating a charge for a charged information signal with errors avoided in a report of the charge |
| Jan-3-1989 |
The amount of money which should be charged upon reception of a pay television signal or a like information signal, is calculated by a charging device comprising a calculator (25) for calculating the amount... |
| 4091417 |
Decoder mode validation apparatus for pay television systems |
| May-23-1978 |
A predetermined pattern of code signals is periodically inserted into the transmitted encoded television signal. The pattern is so chosen that a bistable circuit at the receiver changes state for each... |
| 5740246 |
Crypt key system |
| Apr-14-1998 |
The present invention provides a concrete structure for applying a crypt key system to a television system, a database system or an electronic commercial transaction system or the like. This system consists... |
| 6810387 |
Copy prevention apparatus and method in digital broadcasting receiving system |
| Oct-26-2004 |
A copy prevention apparatus and method in a digital broadcasting receiving system protects information stored in a storage medium from being illegally duplicated by an unauthorized third party. The copy... |
| 6980652 |
Combination mastered and writeable medium and use in electronic internet appliance |
| Dec-27-2005 |
An optical medium uses a single structure or format (such as identical materials, layers and the like) for both a region for holding mastered data and a writeable area. In one aspect, a writeable region... |
| 5675647 |
Cable TV system using passwords |
| Oct-7-1997 |
This invention relates to a method of distributing signals to valid subscribers comprised of storing subscriber terminal valid identification codes at a central station, broadcasting promotions of services... |
