Daude
Francois Daude, Rennes FR
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20140294229 | Method and Device for Watermarking a Sequence of Images, Method and Device for Authenticating a Sequence of Watermarked Images and Corresponding Computer Program - A method for watermarking a sequence of images is provided. The method implements the following steps, for at least one current image: comparing the current image with a preceding image of the sequence, delivering a difference image representing a motion between the preceding image and the current image; if the difference between the current image and the preceding image is above a predetermined threshold, watermarking the current image by inserting a message comprising a field carrying an identifier of the current image and a field carrying a soft hash obtained from at least one portion of the difference image; and if not, watermarking the current image by inserting a message comprising a field carrying an identifier of the current image. | 10-02-2014 |
Olivier Daude, Nice FR
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20100118709 | METHOD AND APPARATUS FOR PROVIDING END TO END VIRTUAL PRIVATE NETWORK PERFORMANCE MANAGEMENT - A method and apparatus for managing a virtual private network are disclosed. For example, the method collects performance data for at least one parameter from a plurality of customer edge routers and a plurality of provider edge routers associated with the virtual private network. The method correlates the performance data for identifying one or more performance exceptions based on a threshold for each of the at least one parameter, and performs a trending analysis using the one or more performance exceptions to predict a potential problem that will impact the virtual private network. | 05-13-2010 |
20110072007 | SYSTEM AND METHOD FOR CACHING DATABASE REPORTS - A method of report caching includes recording a user ID, a timestamp including at least a connection date and at least one SQL query associated with a report requested by a user from the database system for each connection of the user to the database system over a predetermined period. A plurality of intervals is defined in the predetermined period. Retrieved are instances of the user ID associated with connections of the user to the database system during at least a threshold number of the intervals based on a position that a current date associated with a current connection of the user to the database system occupies in a current interval. The at least one SQL query is executed to generate the report from the database system on the current date before request for the report from the user. The report is stored in a cache for user's retrieval. | 03-24-2011 |
20120144033 | METHOD AND SYSTEM FOR OPTIMIZING PERFORMANCE AND AVAILABILITY OF A DYNAMIC HOST CONFIGURATION PROTOCOL (DHCP) SERVICE - A system and computer program product for monitoring and optimizing performance and availability of a Dynamic Host Configuration Protocol (DHCP) service are provided by one or a plurality of DHCP servers in an Internet Protocol (IP) network comprising one or a plurality of IP subnetworks. The system implemented in hardware, comprises a computer infrastructure operable to define one or a plurality of groups of subnetworks, each group of subnetworks comprising one or a plurality of subnetworks. The computer infrastructure is further operable to retrieve information related to resources, in particular IP addresses, allocated within a DHCP server to each group of subnetworks. The computer infrastructure is further operable to transfer the information to a DHCP service monitoring system, the DHCP service monitoring system comprising means for retrieving the information from the one or a plurality of DHCP servers and means for aggregating the information for each group of subnetworks. | 06-07-2012 |
20130003593 | METHOD AND APPARATUS FOR PROVIDING END TO END VIRTUAL PRIVATE NETWORK PERFORMANCE MANAGEMENT - A method and apparatus for managing a virtual private network are disclosed. For example, the method collects performance data for at least one parameter from a plurality of customer edge routers and a plurality of provider edge routers associated with the virtual private network. The method correlates the performance data for identifying one or more performance exceptions based on a threshold for each of the at least one parameter, and performs a trending analysis using the one or more performance exceptions to predict a potential problem that will impact the virtual private network. | 01-03-2013 |
20130290371 | SYSTEM AND METHOD FOR CACHING DATABASE REPORTS - A method of generating predictive reports includes recording a user identification, a timestamp including a connection date, and a query associated with report requested by a user from a database system for each connection of the user identification to the database system during a predetermined period. A plurality of intervals is defined in the predetermined period. Retrieved are instances of the user identification associated with connections of the user identification to the database system during a threshold number of the plurality of intervals based on a position that a current date occupies in a current interval, such that a position of each connection date in a respective interval is the same as the position that the current date occupies in the current interval. The query is executed to generate the report from the database system on the current date prior to a request for the report from the user. | 10-31-2013 |
Otto Daude, Hambuhren DE
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20120285418 | FUEL INJECTION METHOD FOR DIESEL ENGINES WITH INJECTION NOZZLES ARRANGED IN A TANGENTIAL MANNER ON THE PERIPHERY OF THE CYLINDER - A fuel injection method is provided for diesel engines, particularly diesel engines working according to the opposed piston principle, comprising several injection nozzles arranged in a tangential manner on the periphery of the cylinder. An approximately homogeneous mixing step is achieved by the geometric arrangement of the injection nozzles and by the individual control of the injection amount and of the temporal injection process. | 11-15-2012 |
20120291744 | SEALING SYSTEM FOR SLIDING SLEEVES FOR CONTROLLING GAS EXCHANGE IN INTERNAL COMBUSTION ENGINES - A sealing system for sliding sleeves for controlling gas exchange in internal combustion engines. The sealing system is designed such that the pressure on the sealing seat of the sliding sleeve increases when the gas pressure increases, which is similar to that of common valves in internal combustion engines. This is obtained by way of a pressure stage on the inner diameter in the region of the sealing seat of the sliding sleeve. As a result, the maximum outer diameter of the sealing seat does not exceed the inner diameter of the piston running surface of the sliding sleeve, the closing pressure acting upon the sliding sleeve being equal to or greater than the maximum possible opening pressure acting upon the sliding sleeve even when the sealing seat is subjected to a total gas pressure. | 11-22-2012 |
20120298077 | OPPOSED PISTON ENGINE WITH GAS EXCHANGE CONTROL BY MEANS OF HYDROSTATICALLY MOVED SLIDING SLEEVES - An opposed piston engine with gas exchange control using sliding sleeves embodied on their outer periphery as differential pistons that can be operated as slave pistons. A plunger that is displaceable by a cam is used as a master piston. A hydraulic liquid is housed between the master piston and the slave piston in a closed pipe system. The liquid column housed between the master piston and the slave piston can be displaced back and forth by hydrostatic pressure build-up enabling the gas exchange elements to be opened and closed by the sliding sleeves. | 11-29-2012 |
Pierre Daude, Grenoble FR
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20080303487 | Battery Protection Method and Structure Therefor - In one embodiment, a circuit is formed to couple a battery to a charging voltage at least a portion of a time when the charging voltage is greater than zero volts and is less than a first voltage value. The circuit is also formed to decouple the battery from the charging voltage approximately when the charging voltage is greater than the first voltage and also approximately when the charging voltage is no greater than zero volts. | 12-11-2008 |
Rainer Daude, Freising DE
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20130014056 | Method and Process for Representing Information on a Display Device of a Vehicle - A method of operating a display device of a vehicle is provided on which information is representable in list form with a number of list entries, while the display device size is given and the type and font size are predefined. Each list entry has a second number of maximally representable characters. For the first number of list entries currently to be represented on the display device, it is determined whether, in each case, two mutually successive list entries each have a number of characters that is greater than the second representable number. In the affirmative case, the representable second number of characters of the mutually successive list entries is compared with respect to distinctiveness. When an indistinctiveness is determined, a distinctiveness of these two list entries will be established on the display. | 01-10-2013 |