Accession Number : AD0164017
Title : Suppressed-Carrier Modulator.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Rudolph,Louis R. ; Dalpee,Joseph A.
Report Date : 29 DEC 1970
Pagination or Media Count : 4
Abstract : The patent concerns a transformerless suppressed-carrier modulator. It comprises a field-effect transistor bridge circuit which modulates a carrier frequency signal with two audio input signals, which differ in phase by 180 degrees, to produce two modulated signals having carrier, upper sideband, and lower sideband components with polarities such that after substraction by a differential amplifier the carrier components cancel and only the upper and lower sideband signals are fed to the output of the device.
Descriptors : (*MODULATORS, *PATENTS), ELECTRIC BRIDGES, FIELD EFFECT TRANSISTORS
Subject Categories : Electrical and Electronic Equipment
Distribution Statement : APPROVED FOR PUBLIC RELEASE