Electrical computers and digital processing systems: multicomput – Computer network managing – Computer network monitoring
Reexamination Certificate
2003-08-26
2008-08-12
Najjar, Saleh (Department: 2155)
Electrical computers and digital processing systems: multicomput
Computer network managing
Computer network monitoring
C709S216000, C709S217000, C709S218000, C709S203000, C709S220000, C709S224000, C702S128000, C710S034000
Reexamination Certificate
active
07412508
ABSTRACT:
A device (1) for indicating downloading of a data item (3) by a user computer (5) from a first computer (7) using a data communication network (9) is disclosed. The device (1) comprises a processor (13) being configured for receiving an upload instruction for uploading the data item (3) from a second computer (15) to the user computer (5) via the data communication network (9). The upload instruction has been generated by a first markup language tag referring to the data item (3). The first markup language tag has been generated by a browser executable script uploaded to the user computer (5) from the first computer (7). The first markup language tag differs from a second markup language tag in a cache memory of the user computer (5) causing the user computer (5) to download from the second computer (15). The first and second markup language tags were generated by the browser executable script. The processor is also configured for indicating that the upload instruction has been received. Also disclosed is a device (1) for calculating an estimate of a number of downloadings of a data item (3) from a first computer (7) by a first group of user computers (5) which are configured for not allowing execution of a browser script and the cache memories of which comprise the data item (3).
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Leibowitz et al., “Deconstructing the Kazaa network”, Proceedings of the Third IEEE Workshop on Internet Applications (WIAPP'03), 1530-1354/03, 2003 IEEE.
Communication dated Feb. 11, 2008 issued in corresponding EP 03 795 517.6-22-1.
Jagerbrand Leif
Strauss Fredrik
Admeta AB
Henry Marie Georges
Manelli Denison & Selter PLLC
Melcher Jeffrey S.
Najjar Saleh
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