Cross-point switch fabric and switch fabric slice
US7385969B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2002 |
| Grant date | Jun 10, 2008 |
| Priority date | — |
| Expiry date | Feb 11, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/1334
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A cross-point switch fabric slice (100) includes multistage gated buffer tree (135) incorporating at least first and second serially connected gated buffer stages (136, 138). N inputs (102-116) connect to preselected gated buffers (146-160) in the first gated buffer stage (136). The multistage gated buffer tree provides a signal path from any of the N inputs (102-116) to at least one switch output (118) in response to gated buffer stage control signals for the first gated buffer stage (136) and gated buffer stage control signals for the second gated buffer stage (138). Generally, the number of gated buffers decreases from that of the previous stage. As an input signal propagates through the cross-point switch fabric slice (100), longer internal connections are driven by more capable buffers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.