Patents by Inventor Duc Luu

Duc Luu 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).

  • Publication number: 20050021395
    Abstract: A method of recognizing revenue for a Web advertising reach and frequency campaign can comprise specifying a target Gross Rating Point (GRP) for one or more lines of the advertising campaign. The method can further comprise specifying a total booked amount of money for the lines, and apportioning the target GRP among one or more time periods of the campaign for the lines. The method can further comprise apportioning the total booked amount among the time periods, wherein the revenue is based on the apportioned GRP and the apportioned booked amount.
    Type: Application
    Filed: July 16, 2003
    Publication date: January 27, 2005
    Inventor: Duc Luu
  • Patent number: 4395757
    Abstract: An information structure called a semaphore serves as a signalling mechanism in process synchronization. The semaphore is used to relate a process and an event which do not appear simultaneously. In accomplishing this, the semaphore is capable of storing the presence of events or resources waiting for processes or, alternatively, the presence of processes waiting for events or resources via a queue.
    Type: Grant
    Filed: April 14, 1981
    Date of Patent: July 26, 1983
    Assignee: Compagnie Honeywell Bull
    Inventors: Jacques Bienvenu, Claude Carre, Duc Luu, Henri Verdier
  • Patent number: 4316245
    Abstract: Apparatus in a data processing system to initialize a semaphore held in a memory field of the data processing system or, alternatively, to restore the semaphore to a previous predetermined state. A count field, or tally field, provided in the semaphore is initialized by a particular instruction. The semaphore can be either a non-message semaphore or a message semaphore. The instruction initializes the semaphore count field of a non message semaphore to zero or a preloaded positive value. For a message semaphore, this instruction initializes the count field to zero. If the message semaphore previously had a positive count, the messages tied to the semaphore are released and the message links holding the messages are transferred to a free message link queue tied to the free link semaphore in the same semaphore descriptor segment.
    Type: Grant
    Filed: December 7, 1978
    Date of Patent: February 16, 1982
    Assignee: Compagnie Honeywell Bull
    Inventors: Duc Luu, Philippe-Hubert deRivet, John J. Bradley, Benjamin S. Franklin
  • Patent number: 4079448
    Abstract: The disclosure describes an improved apparatus for simultaneously transferring data or commands between several peripheral devices and a central processing unit. The apparatus includes a peripheral control unit which links the central processing unit to several peripheral devices. The peripheral control unit operates as a master with respect to the central processing unit and the peripheral devices in order to increase the capacity of the central processing unit.
    Type: Grant
    Filed: April 7, 1975
    Date of Patent: March 14, 1978
    Assignee: Compagnie Honeywell Bull
    Inventors: Ngoc Luyen N'Guyen, Tuong Duc Luu, Jean Maurice Finet