Patents by Inventor Alberto Gustavo Gonzalez Conde

Alberto Gustavo Gonzalez Conde has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6199049
    Abstract: A point of sale device having a verifiable electronic journal system which maintains an electronic journal file in lieu of using a journal print station. Transaction information is first stored in a non-volatile random access memory. A data signature is determined based on the contents of the random access memory for a journal. Both the transaction information and the data signature are transferred to the separate journal memory. The journal memory may, for example, reside on the point of sale terminal and tampering with the journal transaction information may be detected by reference to the data signature which is also transferred and maintained in the electronic journal file. Preferably, the data signature is encrypted such as by a shared key encryption scheme and the associated public key is also transferred and stored in the electronic journal file from the device, such as a fiscal base, which is tracking the transaction information as it is created.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: March 6, 2001
    Assignee: International Business Machines Corporation
    Inventors: Alberto Gustavo Gonzalez Conde, Robert Scott Fortenberry, Wayne Roger Hucaby