Linearizing circuit for a high frequency voltage controlled oscillator
US4417218A · kind A · utility
17Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 19, 1981 |
| Grant date | Nov 22, 1983 |
| Priority date | — |
| Expiry date | Jun 19, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B2200/0092
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit for linearizing the oscillator sweep output frequency signal of a oltage controlled oscillator is disclosed. The voltage controlled oscillator is driven by the output of an op amp, which amplifies and filters the output of a D/A converter. The D/A converter responds to preselected 8-bit words, stored in an EPROM, so as to produce a desired output frequency at each memory address. The addresses, in turn, are provided by a combination of gates, counters, input signals and a clock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.