The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 15, 2009
Filed:
Jul. 10, 2006
Hayrettin Buyuktepe, Kanata, CA;
Hayrettin Buyuktepe, Kanata, CA;
Alcatel Lucent, Paris, FR;
Abstract
A method for updating a current network flow statistic stored in a memory device, comprising: storing a first statistic and a first address corresponding to a location in the memory device in a first stage of a multiple stage delay pipeline; shifting the first statistic and the first address to successive stages of the pipeline during successive clock cycles; at a middle stage of the pipeline, sending a read signal to the memory device to read the current statistic from the location; at a last stage of the pipeline, receiving the current statistic from the memory device in response to the read signal, adding the first statistic to the current statistic to generate an updated statistic, and sending a write signal to the memory device to write the updated statistic to the location; and, if a second statistic for the first address is stored in the first stage of the pipeline while the first statistic is stored in any but the first and last stages of the pipeline, replacing the first statistic with a sum of the first and second statistics and not sending the read signal when the second statistic is shifted to the middle stage.