Diversity radio receiver for use with multiple antenna, particul

Details Diversity radio receiver for use with multiple antenna, particul Diversity radio receiver for use with multiple antenna, particul

1988-10-04

1990-07-03

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

With wave collector

455137, 455139, 455273, 455278, H04B 702

Patent

active

049397915

ABSTRACT:
To increase the fidelity of radio reception in a moving receiver, for example a car radio, the signals received from various antennas on the radio are mixed with a carrier in the receiver, and the resulting mixed signals, directly and 90.degree. phase-shifted, are added to a summing signal, in which, additionally, the phase positions of the direct and 90.degree. phase-shifted signals are changed in dependence on the phase difference between the respective intermediate frequency mixed signal and the overall summed signal in a direction to maximize the summed signal (u.sub.s).

REFERENCES:
patent: 3806815 (1974-04-01), Fletcher et al.
patent: 4700366 (1987-10-01), Henriksson
patent: 4710975 (1987-12-01), Okamoto et al.
patent: 4752969 (1988-06-01), Rilling
patent: 4850037 (1989-07-01), Bochmann

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