Multiple level quantizer
US6198420A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1998 |
| Grant date | Mar 6, 2001 |
| Priority date | — |
| Expiry date | Dec 14, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/361
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A DC coupled serial data stream receiver system utilizing a switched capacitor based differencing front end which compares the instantaneous value of an analog voltage with respect to its long term minimum value to a series of reference voltages V.sub.1 to V.sub.n in a flash analog to digital converter style front end. The circuit is designed to interface directly to a discrete fiberoptic preamplifier. The receiver can handle multiple amplitude serial data as produced by multiple fiberoptic transmitters on the same fiber without any data loss and without any interruption in data transfer being necessary as one transmitter halts and a second one starts transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.