Communication device plane having a high-speed bus
US6894905B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2001 |
| Grant date | May 17, 2005 |
| Priority date | — |
| Expiry date | May 15, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K7/1459
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An “H layout” according to the present invention affords for a smaller, simpler, less expensive and higher performance midplane for use in a communication system for connecting various modules together. The layout is based on the concept of symmetry around a mid-section, which allows for the reuse of APM cards on the top and bottom of a midplane. All high-speed tracks on the midplane are concentrated in the center thereof. Front and back connectors on the midplane are staggered so as to permit very high module densities while maintaining manageable finger access. The present invention has the advantages of: reducing high-speed track lengths in a backplane or midplane; simplifying high speed track routing by having almost only horizontal tracks on the midplane, thus reducing crossing over; and providing a smaller midplane, thus reducing costs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.