Radio receiver

Details Radio receiver Radio receiver

1996-07-02

1999-02-09

Mullen, Jr., Thomas J.

Chemistry: molecular biology and microbiology

Enzyme , proenzyme; compositions thereof; process for...

Hydrolase

455316, H04B 116

Patent

active

058706690

ABSTRACT:
A radio receiver which includes structure for direct-frequency-converting a received input signal to two axial base-band components including an in-phase base-band component and orthogonal phase base-band component. The radio receiver also includes structure for re-modulating the two axial base-band components of in-phase and orthogonal phase by using in-phase and orthogonal phase carrier waves where each carrier wave has a frequency equal to an IF signal frequency. Further, the radio receiver includes structure for composing the re-modulated components to provide the IF signal and for amplifying the IF signal, where the IF signal is an objective signal. The radio receiver further includes structure for detecting the objective signal to produce a detected output and for applying the detected output to a demodulated output terminal.

REFERENCES:
patent: 4776039 (1988-10-01), Akaiwa
patent: 4944025 (1990-07-01), Gehring et al.
patent: 4953182 (1990-08-01), Chung
patent: 5081650 (1992-01-01), Hasegawa et al.

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