1
Martin E Hellman: Software distribution system. Flehr Hohbach Test Albritton & Herbert, April 14, 1987: US04658093 (879 worldwide citation)

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 or videodisk player) cannot use that software until the manufacturer sends an authorization for ...


2
Fred Chernow, Randy J Peterson: Software distribution system. Sughrue Mion Zinn Macpeak & Seas, March 12, 1991: US04999806 (559 worldwide citation)

A central station distributes software by telephone. The central station accepts credit card information, transmits an acceptance code to a caller and then terminates the call. After verifying the credit card information, the station calls the purchaser back and continues with the transaction only a ...


3
Norman Shing, Leonid Erlikh, Nicholas R Lim, Jeffrey L Lambert, Joel M Moskowitz, Vivek K Wadhwa, James Hughes, Elaine C Power: Software distribution system to build and distribute a software release. Seer Technologies, Kenyon & Kenyon, February 27, 1996: US05495610 (448 worldwide citation)

A method for creating and electronically distributing a new release of a software program in a computer system having a number of processors is disclosed. One of the software programs is modified. An impact analysis is performed to identify modules to be modified as a result of the modification. A n ...


4
Toshinari Takahashi, Hiroyasu Nogami: Software distribution system and software utilization scheme for improving security and user convenience. Kabushiki Kaisha Toshiba, Foley & Lardner, December 18, 2001: US06332025 (173 worldwide citation)

A software distribution system and a software utilization scheme for effectively preventing an illegal copy of a software is difficult while improving a convenience of a user. At a user side, a shared key to be shared between a software provider and a user is stored, where the shared key has a guara ...


5
Joel A Ronning: On-line try before you buy software distribution system. Digital River, Merchant Gould Smith Edell Welter & Schmidt P A, March 16, 1999: US05883955 (138 worldwide citation)

A computer-based on-line system is provided for demonstrating software programs to a potential purchaser. The system receives from an on-line system a software program to be demonstrated, and maintains the software program in a locked state in order to prevent unauthorized duplication of the softwar ...


6
Barry A Fite, Michael L Mitchell, Russ A Kunz, Clifford R Brannon: CD-ROM with machine-readable I.D. code. Digital Audio Disc Corporation, William S Frommer, Alvin Sinderbrand, March 21, 1995: US05400319 (104 worldwide citation)

A machine-readable serial number is formed on a CD-ROM by using a laser to selectively remove a reflective layer from the CD-ROM. Removal of the reflective layer creates defects in addressable information storage locations on the CD-ROM. The serial number is read by detecting the defects. The serial ...


7
Barry A Fite, Michael L Mitchell, Russ A Kunz, Clifford R Brannon: CD-ROM with machine-readable i.d. code. Sony Corporation, Digital Audio Disc Corporation, William S Frommer, Alvin Sinderbrand, April 30, 1996: US05513169 (93 worldwide citation)

A machine-readable serial number is formed on a CD-ROM by using a laser to selectively remove a reflective layer from the CD-ROM, Removal of the reflective layer creates defects in addressable information storage locations on the CD-ROM, The serial number is read by detecting the defects, The serial ...


8
Toshinari Takahashi, Hiroyasu Nogami: Software distribution system and software utilization scheme for improving security and user convenience. Kabushiki Kaisha Toshiba, Foley & Lardner, February 27, 2001: US06195432 (85 worldwide citation)

A software distribution system and a software utilization scheme for effectively preventing an illegal copy or a software is difficult while improving a convenience of a user. At a user side, a shared key to be shared between a software provider and a user is stored, where the shared key has a guara ...


9
Swain W Porter: Token based source file compression/decompression and its application. Wildseed, Columbia IP Law Group, December 19, 2000: US06163811 (73 worldwide citation)

Disclosed is a software distribution system using both differencing and compression techniques to distribute source files over a network while minimizing the network bandwidth needed to maintain and update a set of source files. In an embodiment, a sending computer maintains sets of source files in ...


10
Hideki Yoshida, Hideo Segawa, Toru Imai: Decryption key management scheme for software distribution system. Kabushiki Kaisha Toshiba, Foley & Lardner, June 13, 2000: US06075862 (56 worldwide citation)

A decryption key management scheme for a software distribution system utilizing the decryption key, which can enable the re-install of the software that was decrypted once by a proper procedure, without requiring a re-acquisition of the decryption key from the software vender, so that a user can fre ...