Bus system, memory system, printed circuit board and directional coupler
US6978328B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2000 |
| Grant date | Dec 20, 2005 |
| Priority date | — |
| Expiry date | May 12, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/10022
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A bus system for carrying out data transfer between one bus master and a plurality of bus slaves. The bus system includes plural directional couplers which are formed by arranging respective parts of lines drawn from the bus slaves, without being in contact with, in the neighborhood of, and in parallel with a line drawn from the bus master. The line drawn from the bus master to a terminating resistance is wired to be folded. The directional couplers are further formed by arranging parts of the lines drawn from the bus slaves alternatively with respect to a first line part of the line drawn from the bus master ranging from the bus master to a fold of the line drawn from the bus master and with respect to a second line part of the line drawn from the bus master ranging from the fold to the terminating resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.