Alignment of optical interfaces for data communication
US6474860B2 · kind B2 · utility
10Cited by
23References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 2001 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | May 21, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/3025
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
An optical interface for data communication that can be manufactured and aligned in a cost effective manner includes an array of optical emitters and an optical receiver are positioned within a predetermined tolerance with reference to each other so as to establish an optical data communication path. To search for and determine which of the emitters of the array achieves the best alignment, the optical emitters are individually energized in a sequence, while monitoring the output signal of the optical receiver. For subsequent data communications, the optical emitter determined to achieve the best alignment is employed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.