Patent · US Expired

Amplitude modulation circuit

US4085389A · kind A · utility

5Cited by
2References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 2, 1977
Grant dateApr 18, 1978
Priority date
Expiry dateFeb 2, 1997

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03C1/36
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

An amplitude modulation circuit which comprises a modulating circuit for applying a modulating signal to a modulated stage, and a voltage regulator arranged to regulate a D.C. voltage to be supplied to the modulated stage at a predetermined constant level and having a circuit means adapted to provide a high impedance for the modulating signal applied to the modulated stage.

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