Document Type and Number:
Japanese Patent JPS6328381
Kind Code:
B2
Abstract:
A frequency demodulator including an "exclusive-OR" circuit receiving two square-wave signals having a frequency corresponding to a frequency-modulated signal, and a delay circuit for delaying one of the square-wave signals before application to the "exclusive-OR" circuit, by a delay varying versus frequency in such a way that the absolute value of the phase difference between the square-wave signals varies at most from 0 DEG to 180 DEG inversely with respect to changes in frequency. The output signal of the demodulator is supplied by a low-pass filter connected to the output of the "exclusive-OR" circuit.
Inventors:
ROBEERU BUDORU
JERAARU PUZUURI
JERAARU PUZUURI
Application Number:
JP9645881A
Publication Date:
June 08, 1988
Filing Date:
June 22, 1981
Export Citation:
Assignee:
TEREKOMYUNIKASHION RAJIOEREKUTORITSUKU E TEREFUONIKU TRT
International Classes:
H03D3/06; H03D3/02; H03D3/20; H03K9/06; H04L27/14; H04L27/156