Patents Assigned to Alchemedia Ltd.
  • Copy protection of digital images transmitted over networks
    Patent number: 6353892
    Abstract: A method for protecting digital images distributed over a network, including the steps of receiving a request from a client computer running a network browser, for an original layout page containing references to digital images therein, parsing the original layout page for the references to digital images, generating a modified layout page from the original layout page by replacing at least one of the references to digital images in the original layout page with references to substitute data, and sending the modified layout page to the client computer. A system is also described and claimed.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: March 5, 2002
    Assignee: Alchemedia Ltd.
    Inventors: Daniel Schreiber, Andrew Goldman
  • Method and system for copyright protection of digital images transmitted over networks
    Patent number: 6298446
    Abstract: A method for protecting digital images distributed over a network, including the steps of receiving a request from a client computer running a network browser, for an original layout page containing references to digital images therein, parsing the original layout page for the references to digital images, generating a modified layout page from the original layout page by replacing at least one of the references to digital images in the original layout page with references to substitute data, and sending the modified layout page to the client computer. A system is also described and claimed.
    Type: Grant
    Filed: September 14, 1999
    Date of Patent: October 2, 2001
    Assignee: Alchemedia Ltd.
    Inventors: Daniel Schreiber, Andrew Goldman
  • Methods and apparatus for preventing reuse of text, images and software transmitted via networks
    Patent number: 6209103
    Abstract: A method for providing textual information in a network environment, the method comprising: receiving a request via a network for text-editable textual information; converting the text-editable textual information into a non-text-editable textual format on line upon receiving the request; and sending the non-text-editable textual information via the network. Network-based systems are also disclosed.
    Type: Grant
    Filed: May 17, 1999
    Date of Patent: March 27, 2001
    Assignee: Alchemedia Ltd.
    Inventors: Daniel Schreiber, David Guedaliah