Apparatus and method for filtering transactions
US10243758B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2017 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Apr 30, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/40032
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus and method are provided for filtering transactions performed between a master device and a slave device, where each transaction comprises one or more transfers. The apparatus has a first interface for coupling to the master device and a second interface for coupling to the slave device. Routing circuitry is used to route, between the first interface and the second interface, signals representing each transfer. Filtering decision generation circuitry is arranged to perform a combinatorial operation to generate a filtering decision dependent on current values of one or more received input variables. The routing circuitry is then responsive to the filtering decision indicating a block condition for a current transfer, to block the current transfer by preventing one or more of the signals representing that current transfer from being passed between the first interface and the second interface in either direction. The filtering decision generation circuitry is responsive to assertion of the current transfer within the apparatus to generate the filtering decision, and thereafter to maintain that filtering decision for a duration of time that the current transfer is asserted,…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.