Apparatus and method for supporting memory management in an offload of network protocol processing
CA 2573156 C · Owner: Hu, Elbert V. · Inventors: Sahu, Sambit; Nahum, Erich M.; Freimuth, Douglas M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A number of improvements in network adapters that offload protocol processing from the host processor are provided. Specifically mechanisms for handling , memory management and optimization within a system utilizing an offload network adapter are provided (730). The memory management mechanism (730) permits both buffered sending (1770) and receiving (1680) of data as well as zero-copy sending and receiving of data. In addition the memory management , mechanism (730) permits grouping of DMA buffers (1130) that can be shared among specified connections based on any number of attributes. The memory management mechanism (730) further permits partial send and receive buffer operation, …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed May 23, 2005 and granted June 5, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 23, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.