Data transmission system of directional coupling type using forward wave and reflection wave
US6983023B2 · kind B2 · utility
11Cited by
7References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2001 |
| Grant date | Jan 3, 2006 |
| Priority date | — |
| Expiry date | Jul 17, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0292
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A memory module bus system using a plurality of directional couplers to permit high-density packaging. A wiring line (main line) extending from a main controller and cooperating with a sub coupling line to form a directional coupler is open-ended or short-circuited to ensure that a forward wave and a reflection wave can be used to generate signals in opposite directions of the directional coupler. Memory modules are connected to opposite ends of the sub coupling line. The line length of the coupler can be half the pitch between the memory modules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.