Phase detecting method and phase detector and FM receiver using

Details Phase detecting method and phase detector and FM receiver using Phase detecting method and phase detector and FM receiver using

1993-07-07

1996-05-14

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency or phase modulation

455209, 455214, 329306, 329343, H04B 116

Patent

active

055176895

ABSTRACT:
A phase detection system in which an original modulation signal is detected from a first complex baseband signal obtained through orthogonal demodulation of an FM signal and output, a second complex baseband signal having cosine and sine components of a phase change .DELTA..phi. of the first complex baseband signal in a predetermined time interval .tau. is rotated until a rotation angle .theta. becomes .DELTA..phi., and rotation angle data indicative of the rotation angle .iota. is detected and output.

REFERENCES:
patent: 4675882 (1987-06-01), Lille et al.
patent: 5301210 (1994-04-01), Vandamme et al.
patent: 5315618 (1994-05-01), Yoshida

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