| 5708709 |
System and method for managing try-and-buy usage of application programs |
| Jan-13-1998 |
A system and method for managing the distribution of licensed application programs stored on a server over a distributed computer system maintains control over the program even after the program has been... |
| 5689560 |
Method and apparatus for enabling trial period use of software products: method and apparatus for allowing a try-and-buy user interaction |
| Nov-18-1997 |
A method and apparatus is provided for distributing software objects from a producer to a potential user. The software object is reversibly functionally limited, preferably through encryption, and loaded... |
| 5680453 |
Software delivery system, center device, relaying device and user terminal device |
| Oct-21-1997 |
In order to realize an optimal software distributing form involving a software storing medium distributor and a communication company which provides software by utilizing communication lines, a center... |
| 5675734 |
System for transmitting desired digital video or audio signals |
| Oct-7-1997 |
A method for transferring desired digital video or digital audio signals. The method comprises the steps of forming a connection through telecommunications lines between a first memory of a first party... |
| 5673322 |
System and method for providing protocol translation and filtering to access the world wide web from wireless or low-bandwidth networks |
| Sep-30-1997 |
An interface between a protected computer or computer network and the World Wide Web (WWW). The interface comprises a split proxy system that encapsulates TCP/IP transmissions into a script transmission,... |
| 5671276 |
Method and apparatus for impulse purchasing of packaged information services |
| Sep-23-1997 |
Impulse purchasing is provided for packages of services offered to consumers via an information network. A plurality of services is offered for individual purchase on an impulse basis via a user terminal... |
| 5668872 |
Information processing method and system |
| Sep-16-1997 |
An information processing method and system in which coded or incomplete information is transmitted through a space or through a predetermined transmission line and is received by a user. A program or... |
| 5666412 |
Secure access systems and methods utilizing two access cards |
| Sep-9-1997 |
A CATV system including a CATV network and apparatus for transmitting over the CATV network information to a multiplicity of subscriber units, each including a CATV decoder and an IC card reader and writer... |
| 5661799 |
Apparatus and storage medium for decrypting information |
| Aug-26-1997 |
A system including a storage medium containing encrypted information comprises: (a) a control unit for selecting information to be retrieved from the storage medium; (b) a storage medium reader for reading... |
| 5636281 |
Method and device to authorize access to an instrument comprising a computerized operating system |
| Jun-3-1997 |
Methods that enable the providing of authorization for the use of an instrument comprising a computer for a period limited by a date or limited to a number of hours. The method consists in mingling the... |
| 5636276 |
Device for the distribution of music information in digital form |
| Jun-3-1997 |
In order to distribute music information from a central memory device (2) via a communications network (4) to a terminal (6), this information is organized in a digital music information object. The latter... |
| 5619570 |
Information furnishing and collection system |
| Apr-8-1997 |
An information furnishing and collection system which allows rapid furnishing of information and flexible payment of a charge and collects information regarding a reaction of a user while enhancing the... |
| 5615264 |
Encrypted data package record for use in remote transaction metered data system |
| Mar-25-1997 |
The disclosed system relates to metered use cryptographic systems, and particularly to a data package and system operation for effecting metered purchases of encrypted data from a local encrypted database.... |
| 5596639 |
CD-PROM |
| Jan-21-1997 |
Data on a CD-PROM disk is selectively accessed in a secure manner by selectively encoding binary digital passwords and decryption keys onto the same disk in a separate area. Passwords and decryption keys... |
| 5592549 |
Method and apparatus for retrieving selected information from a secure information source |
| Jan-7-1997 |
A device is disclosed for retrieving information from a secure electronic information source, wherein at least some of the information is in encrypted form and may be decrypted for use. The device comprises:... |
| 5563946 |
Method and apparatus for enabling trial period use of software products: method and apparatus for passing encrypted files between data processing systems |
| Oct-8-1996 |
A method and apparatus is provided for transferring encrypted files from a source computer to one or more target computers. An export program is provided in the source computer and an import program is... |
| 5557677 |
Method and arrangement for communication of information |
| Sep-17-1996 |
In a transmitter, information for transmission is received in the form of a digital signal, electrical or optical, which is converted into short signal fragments, each of which is assigned an index. A... |
| 5548645 |
Secure software rental system using distributed software |
| Aug-20-1996 |
A system is disclosed for providing secure access and execution of application software by a first computer while a communication link is maintained between the first computer and a second computer. More... |
| 5532920 |
Data processing system and method to enforce payment of royalties when copying softcopy books |
| Jul-2-1996 |
A publisher of a softcopy book includes royalty payment information either within the structured document text of the book or in a royalty payment information file which accompanies the book. To read the... |
| 5444779 |
Electronic copyright royalty accounting system using glyphs |
| Aug-22-1995 |
The present invention is a system for utilizing a printable, yet unobtrusive glyph or similar two-dimensionally encoded mark to identify copyrighted documents. Upon attempting to reproduce such a document,... |
| 5416840 |
Software catalog encoding method and system |
| May-16-1995 |
A method and system for protecting computer program distribution within a broadcast medium involves encrypting at least a portion of the computer program S.sub.i using an encryption scheme keyed to both... |
| 5388211 |
Method and apparatus for remotely controlling and monitoring the use of computer software |
| Feb-7-1995 |
Remote control of the use of computer data is described in a system for renting computer software which derives use and billing information, prevents unauthorized use, maintains integrity of the software... |
| 5341429 |
Transformation of ephemeral material |
| Aug-23-1994 |
A bidirectional process allows remote transformation of ephemeral materials between an original form and a denatured form without changing the content of the material from its original form and without... |
| 5291554 |
Shared-price custom video rentals via interactive TV |
| Mar-1-1994 |
Movies and like video programs are distributed electronically from a program storage and processing center in encrypted format over a satellite channel upon custom order for private viewing of one paying... |
| 5172413 |
Secure hierarchial video delivery system and method |
| Dec-15-1992 |
Disclosed is an improved system for the delivery of entertainment and educational programming from a plurality of electronic libraries to a plurality of users. Users actuate a hand operated control device... |
| 5159633 |
Multimedia network system |
| Oct-27-1992 |
There is disclosed a multimedia network system for transmitting real-time communication type information such as a television video signal and storage type information such as a computer file using at... |
| 5155680 |
Billing system for computing software |
| Oct-13-1992 |
A computer software security and billing system is disclosed in which the application program is enciphered in accordance with an algorithm driven by a numeric key. The user's computer is provided with... |
| 5153917 |
Communication terminal system |
| Oct-6-1992 |
The invention provides an improved communication terminal system which basically works only in an on-line state, that is, when it is connected with a host computer; but, which is also workable for a pre-determined... |
| 5047928 |
Billing system for computer software |
| Sep-10-1991 |
A computer software security and billing system is disclosed in which the application program is enciphered in accordance with an algorithm driven by a numeric key. The user's computer is provided with... |
| 4977594 |
Database usage metering and protection system and method |
| Dec-11-1990 |
A "return on investment" digital database usage metering, billing, and security system includes a hardware device which is plugged into a computer system bus (or into a serial or other functionally adequate... |
| 4879645 |
Data processing device with high security of stored programs |
| Nov-7-1989 |
An IC card comprises CPU, PROM for storing programs, and RAM for storing the results of arithmetic operations. PROM stores a table on which the names of specific programs are registered. RAM has execution... |
| 4796181 |
Billing system for computer software |
| Jan-3-1989 |
A computer software security and billing system is disclosed in which the application program is enciphered in accordance with an algorithm driven by a numeric key. The user's computer is provided with... |
| 4740890 |
Software protection system with trial period usage code and unlimited use unlocking code both recorded on program storage media |
| Apr-26-1988 |
An apparatus for preparing and playing back a duplicated disk containing software as a program so that a customer will be able to use the disk for a predetermined trial period. The duplicated disk is impressed... |
| 4723283 |
Data transmission system |
| Feb-2-1988 |
This invention relates to a data transmission system in which information data is shuffled and the data service is received by those who paid the charges. According to this data transmission system, a... |
| 4677434 |
Access control system for transmitting data from a central station to a plurality of receiving stations and method therefor |
| Jun-30-1987 |
An apparatus and a method of providing an access control for transmitted stock market data from a central radio station to a plurality of one-way radio receivers. Into each receiver is inputted an access... |
| 4658093 |
Software distribution system |
| Apr-14-1987 |
Software (programs, videogames, music, movies, etc.) can be authorized for use a given number of times by a base unit after which the base unit (computer, videogame base unit, record player, videorecorder... |
| 4599489 |
Solid state key for controlling access to computer software |
| Jul-8-1986 |
A semiconductor device that functions as a key to control access to a software program resident in a computer. The device includes a continuously running pulse generator that produces an output representative... |
| 4528643 |
System for reproducing information in material objects at a point of sale location |
| Jul-9-1985 |
The present invention contemplates a system for reproducing information in material objects at a point of sale location wherein the information to be reproduced is provided at the point of sale location... |
