Patents by Inventor Andre Abrial

Andre Abrial 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).

  • High-speed half-flash type analog/digital converter
    Patent number: 5093664
    Abstract: An analog/digital converter supplying logic words constituted by P high order bits and Q low order bits, comprises: a divider (2), 2.sup.P high weight comparators (5), 2.sup.Q low weight comparators (11), and a selector (14). The high weight comparators have their second inputs (E21) enabled by the clock signal (H) and their first inputs (E11) enabled by the reverse clock signal (H.sup.*). The low weight comparators have their first inputs (E12) enabled by the reverse clock signal (H.sup.*) and their second inputs (E22) enabled by the clock signal (H).
    Type: Grant
    Filed: October 1, 1990
    Date of Patent: March 3, 1992
    Assignee: Minister of Post, Telecommunications and Space French State, Center National d'Etudes des Communication
    Inventors: Patrice Senn, Andre Abrial