Frame search processing apparatus and method
US9699083B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2013 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Jun 12, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/742
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A frame search processing apparatus includes a frame information extraction unit (1) that extracts frame information from an input frame, a search processing unit (2) that compares the frame information with entry information, and a frame information output control unit (3) that controls output of the frame information to the search processing unit (2). The search processing unit (2) includes a plurality of comparison units that read out N pieces of entry information from a search table, and perform comparison between the entry information and the frame information at once. The frame information output control unit (3) includes a frame information buffer that accumulates the frame information, and an output processing unit that, when triggered by a predetermined accumulation count of the frame information or an elapse of a predetermined accumulation time of the frame information, distributes a plurality of pieces of frame information accumulated in the frame information buffer to the comparison units of the search processing unit (2) one by one.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.