Patent · US Expired

Voltage controllable oscillator

US4731592A · kind A · utility

6Cited by
3References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 16, 1986
Grant dateMar 15, 1988
Priority date
Expiry dateDec 16, 2006

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03B2200/0098
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

An integrated voltage controllable oscillator having a transistor for oscillation is further provided with a resonance circuit externally connected to two electrodes of the transistor for oscillation and including a variable capacitance element adapted to vary a resonance frequency of the resonance circuit, and a high impedance element connected between the variable capacitance element and the ground in a circuit adapted to supply a control voltage to the variable capacitance element.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.