Amplifier circuit and control signal generator
US6075413A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 2, 1999 |
| Grant date | Jun 13, 2000 |
| Priority date | — |
| Expiry date | Mar 2, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03C3/16
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
By providing differential resistors in common emitters of pairs of differential transistor and differentially taking out signals from collectors, a circuit excellent in low noise property and linearity was obtained. Further, a ring type voltage controlled oscillation circuit is provided comprising n number of stages of variable delay circuits, a control signal generation circuit weighting n+1 outputs taken out of the voltage controlled oscillation circuit by a phase control signal voltage and controlling the phase, and a phase locked loop means for locking the phase by comparing the output of the voltage controlled oscillation circuit and an external pixel clock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.