Differential sample and hold coupling circuit
US4459699A · kind A · utility
9Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 1981 |
| Grant date | Jul 10, 1984 |
| Priority date | — |
| Expiry date | Oct 2, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/062
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A carrier current receiver employs a comparator driven differentially to square a received data signal. The same drive signal is applied to a sample and hold circuit in which a capacitor is charged to a level that is related to the data signal offset. A voltage-to-current converter responds to the capacitor charge and feeds a current to the input where it acts to correct the offset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.