Optical fiber system
US5157530A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 1990 |
| Grant date | Oct 20, 1992 |
| Priority date | — |
| Expiry date | Jan 18, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0307
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Described are a technique and an apparatus for deskewing data transmitted via a dispersive medium such as a fiber optic link. The relative delays in arrival time for a plurality of bits, propagated in separate channels are measured. The relative delays are used to calculate the wavelength (.lambda.) of one channel and the zero dispersion wavelength (.lambda..sub.0) of the medium. The relative delays in arrival times for the remaining bits in a group of bits are predicted using the measured relative delays, the spacing (.delta.) between the transmitters and the calculated wavelengths. An adjustable delay for storing data bits is provided in each channel. The relative delays are used to deskew the individual bits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.